CBSE Class 12 NCC Sample Paper 2026 27 with Solutions PDF Download

PART-I: COMMON SUBJECTS (Total Marks : 49)

SECTION A

1. Choose the correct option:

i. Which of the following are essentials for national unity?
(a) Education
(b) Dress
(c) Common Language
(d) Removal of Casteism
Choose the correct answer- [1 Mark]
A) a, b and c only
B) b, c and d only
C) a, b, c and d
D) a, c and d only

Answer: D) a, c and d only

Teacher's Note:
a) Education, a common language and removal of casteism help to bring people together.
b) Dress is a personal choice and is not an essential for national unity, so drop every option that has (b).

ii. Match column I to column II
Column I | Column II
A) Thal Sainik Camp | i) Adventure camp
B) Parasailing | ii) Centrally Organised Camp
C) Air wing | iii) 1950
D) Girls Wing | iv) 1949
Choose the correct option [1 Mark]
a) A ii , B I, C iii, D iv
b) A ii, B iii, C i , D iv
c) A i, B iv , C ii , D iii
d) A ii , B i, C iv , D iii

Answer: a) A ii , B I, C iii, D iv

Teacher's Note:
a) Thal Sainik Camp is a Centrally Organised Camp and parasailing is an adventure activity.
b) The Girls Wing was raised in 1949 and the Air Wing in 1950; do not mix up these two years.

iii. When getting on parade with the rifle, the weapon is carried out at- [1 Mark]
a) Short trail (Tol shastra)
b) Present Arms (Salami Shastra)
c) Order Arms (Baju shastra)
d) Examine Arms (Janch Shastra)

Answer: a) Short trail (Tol shastra)

Teacher's Note:
a) The short trail is used when getting on parade with the rifle.
b) It is also used when stepping forward and to the flanks, and during dressing (see Q8A).

iv. The number of Grooves in the barrel of .22 Deluxe Rifle is- [1 Mark]
a) 3
b) 5
c) 4
d) 6

Answer: d) 6

Teacher's Note:
a) The barrel of the .22 Deluxe Rifle has 6 grooves.
b) Learn the rifle's key data (grooves, rate of fire) together, as they are often asked as MCQs.

v. The rapid rate of fire of .22 deluxe rifles is ________________. [1 Mark]
a) 05- 10 rds pm
b) 10- 15 rds pm
c) 15- 20 rds pm
d) 20- 25 rds pm

Answer: b) 10- 15 rds pm

Teacher's Note:
a) The rapid rate of fire of the .22 Deluxe rifle is 10 to 15 rounds per minute.
b) "rds pm" means rounds per minute; read the unit carefully.

vi. Assertion (A) The elevation is given automatically by adjusting the back sight.
Reason (R). Elevation is given to counter the force of gravity, while the bullet is in flight. [1 Mark]
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true and R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true

Answer: a) Both A and R are true and R is the correct explanation of A.

Teacher's Note:
a) Gravity pulls the bullet down during flight, so elevation is needed, and the back sight gives it.
b) First check that each statement is true, then check whether R explains A.

vii. The Government of India took a defining step by enacting the Disaster Management Act of India on- [1 Mark]
a) 23 December 2005
b) 25 December 2006
c) 26 January 2010
d) 15 August 2010

Answer: a) 23 December 2005

Teacher's Note:
a) The Disaster Management Act was enacted on 23 December 2005.
b) Remember the year 2005; the other options are distractor dates.

viii. Drill is defined as being instructed in military exercises which involves-
a) Marching
b) Saluting
c) Turning.
d) Sitting
Choose the correct answer- [1 Mark]
A) a, b and c only
B) b, c and d only
C) c and d only
D) a, c and d only

Answer: A) a, b and c only

Teacher's Note:
a) Marching, saluting and turning are all drill movements.
b) Sitting is not a drill movement, so any option with (d) is wrong.

ix. Drugs that slow down the function of the central nervous system- [1 Mark]
a) Hallucinogens
b) Stimulants
c) Depressants
d) Carcinogens

Answer: c) Depressants

Teacher's Note:
a) Depressants "depress" or slow down the central nervous system.
b) Do not confuse them with stimulants, which have the opposite effect.

x. A system used for connecting the rope to the climber is known as- [1 Mark]
a) Carabiners
b) Harnesses
c) Quickdraws
d) Descenders

Answer: a) Carabiners

Teacher's Note:
a) The marking scheme gives Carabiners as the answer.
b) Learn the names of rock climbing equipment, as they are common one-mark questions.

xi. It is a 6 feet high and 12 feet long brick wall with plaster on both sides. [1 Mark]
a) High wall
b) Double ditch
c) Zig zag balance
d) Gate Vault

Answer: a) High wall

Teacher's Note:
a) The words "brick wall" point directly to the High wall obstacle.
b) Remember its size: 6 feet high and 12 feet long.

SECTION B

2. Name any four non-verbal modes of communication? [2 Marks]

Answer:
1. Tone of voice
2. A nod of the head
3. Smiling or frowning
4. Body posture

Teacher's Note:
a) Each mode carries half a mark, so name exactly four.
b) Using silence, touch and shaking of the head are also accepted modes.

3. A) Give two examples each of wind and water related natural disaster. [2 Marks]

Answer:
1. Wind related: Storms and cyclones.
2. Water related: Floods and drought.

Teacher's Note:
a) Each group of two examples carries 1 mark.
b) Write the examples under clear headings so the examiner can see both groups.

OR

B) Name any four man-made disasters. [2 Marks]

Answer:
1. Accidents
2. Industrial mishaps
3. Warfare
4. Forest fires

Teacher's Note:
a) Each disaster carries half a mark.
b) Man-made disasters are caused by human activity, so do not list natural ones like floods.

4. Define ‘Child Abuse’ according to the WHO. [2 Marks]

Answer: According to the WHO, child abuse or maltreatment is all forms of physical and/or emotional ill-treatment, sexual abuse, neglect or negligent treatment, or commercial or other exploitation, which results in actual or potential harm to the child’s health, survival, development or dignity, in the context of a relationship of responsibility, trust or power.

Teacher's Note:
a) Include the key parts: forms of ill-treatment, harm to the child, and a relationship of trust or power.
b) Begin with "As per WHO" since the question asks for the WHO definition.

5. Name the main components of personal hygiene? [2 Marks]

Answer:
1. Sleep
2. Bathing
3. Eating and drinking
4. Care and cleanliness of skin, hair and teeth
5. Exercise

Teacher's Note:
a) List the components as short headings; no explanation is needed.
b) Remember "care of skin, hair and teeth" as one component.

6. A) What includes bio-medical waste? [2 Marks]

Answer: Bio-medical waste includes soiled waste, disposables, anatomical waste, discarded medicines and chemical wastes.

Teacher's Note:
a) Name at least four types of waste to earn both marks.
b) "Anatomical waste" and "discarded medicines" are key words examiners look for.

OR

B) What comprises Hazardous Waste? [2 Marks]

Answer:
1. Hazardous waste comes mainly from industries like textile, tannery, petrochemicals, pharmaceuticals, pesticides, paint and dye, petroleum, fertilisers and general engineering.
2. It contains heavy metals, cyanides, pesticides, complex aromatic compounds (such as PCBs) and other chemicals which are toxic or reactive.

Teacher's Note:
a) Give both the sources of the waste and what it contains.
b) Use the words "toxic" and "reactive" to describe these chemicals.

7. What first aid treatment would you give to a patient of burns and scalds? [2 Marks]

Answer:
1. Protect the burnt area by applying a bandage, or cover the exposed part with a clean towel or cloth.
2. Evacuate the patient to the nearest hospital or dispensary.

Teacher's Note:
a) Any two points carry full marks; re-assuring the patient is also accepted.
b) For a chemical burn, let water from a pipe or hose flow freely on the burn so that the chemical flows off.

8. A) When is the short trail normally carried out? [2 Marks]

Answer: The short trail is normally carried out when getting on parade with the rifle, when stepping forward and to the flanks, and during dressing.

Teacher's Note:
a) Mention all three occasions to be safe.
b) This links to Q1 iii, where the short trail is the answer.

OR

B) How dressing (sajna) is done with arms after getting on to the parade? [2 Marks]

Answer:
1. In dressing, the front rank raises the left arm instead of the right arm.
2. The rifle is again raised to the position of short trail when moving.

Teacher's Note:
a) The key point is that the left arm is raised, not the right arm, because the rifle is held.
b) Mention the short trail position while moving.

9. Write any two differences between dismiss and falling out. [4 Marks]

Answer:
1. Falling out means leaving the ranks temporarily, whereas dismiss is a word of command given for closing the drill.
2. Falling out is a command to close the drill temporarily, given to a body of cadets who have to fall in again after a stipulated period, whereas dismiss denotes that the parade is completely terminated.

Teacher's Note:
a) Each difference carries 2 marks, so compare both terms in every point.
b) Remember: falling out is temporary, dismiss is final.

10. A) Explain the different types of targets used by cadets for firing in the firing range [4 Marks]

Answer:
1. Application firing: a 1’ x 1’ target is used.
2. Grouping: a 1’ x 1’ target with a white patch in the centre of the bull is used.
3. Rapid firing: a 6 inches figure target is used.

Teacher's Note:
a) Link each target to its type of firing, as in the answer.
b) The white patch in the centre of the bull is what makes the grouping target different.

OR

B) Explain the range procedures and safety precautions under the following
a) Use of red flag
b) Suspension of firing
c) Inspection of weapons [4 Marks]

Answer:
a) Use of red flag: No firing takes place until all the red flags are hoisted and look-out men are posted as per the range standing orders. One flag is always on the top of the butt. The flags warn that the range is in use, and a red flag on the rifle butt means no firing should take place.
b) Suspension of firing: If firing is suspended during practice because of some unforeseen event, weapons are placed on the ground and the firer stands clear.
c) Inspection of weapons: The officer in charge of the firing point makes sure that all weapons are cleared and inspected before leaving the firing point. A further inspection is carried out at the end of firing.

Teacher's Note:
a) Write each heading (a, b, c) and explain it separately.
b) Keep the answer within 80 words by giving only the key action under each heading.

11. What are the benefits of Obstacle course? Write any four benefits. [4 Marks]

Answer:
1. Physical fitness
2. Coordination and balance of mind and body
3. Improves risk-taking ability
4. Overall team spirit

Teacher's Note:
a) Each benefit carries 1 mark.
b) Link the obstacle course to both body (fitness) and mind (risk-taking, team spirit).

12. A) What are the important directive principles of state policy? State any four. [4 Marks]

Answer: Articles 36 to 51 of the Constitution (16 articles) deal with the Directive Principles of State Policy. Four important ones are:
1. To ensure and protect a social order which stands for the welfare of the people.
2. Separation of judiciary from the executive.
3. Protection and improvement of environment, forests and wild life.
4. Equal pay for equal work for men and women.

Teacher's Note:
a) Each principle carries 1 mark; education for all, protection of national monuments and improvement of public health are also accepted.
b) Mentioning Articles 36 to 51 shows clear knowledge of the topic.

OR

B) What measures should be taken to achieve national integration? Write any four of them. [4 Marks]

Answer:
1. Education: Education of the masses can be a powerful instrument of national unity if used in the right manner.
2. Religious tolerance: Each community should respect the coexistence of other communities and promote communal harmony by observing important days of other communities.
3. Linguistic tolerance: Each linguistic group should respect the language of other groups, and every student should be able to learn his or her own language anywhere in India.
4. Use of radio, TV and social media: These should introduce people of different states to each other’s cultures and stress common elements, creating goodwill and mutual understanding.

Teacher's Note:
a) Government initiative, such as All India Services officers learning another state’s language, is also an accepted measure.
b) Give a heading for each measure and one line of explanation to stay within 80 words.

SECTION-C

13. Read the paragraph and answer the questions given below.- [2 Marks]

The platoon has two prescribed formations: line and column; however, the platoon leader may also form the platoon in a column of two from a column. When a platoon forms in a line, its squads are numbered from front to rear; in a column, its squads are numbered from left to right. When the platoon drills as a separate unit and is in a line formation, the platoon leader takes a position six steps in front and center of the platoon. .

a) What is the position of platoon leader, when the platoon drills as a separate unit and is in a line formation? [1 Mark]

Answer: The platoon leader takes a position six steps in front and centre of the platoon.

Teacher's Note:
a) "Six steps" and "in front and centre" are the key words.
b) The answer is in the last sentence of the paragraph.

b) How many prescribed formations do a platoon has? [1 Mark]

Answer: The platoon has two prescribed formations: line and column.

Teacher's Note:
a) Give the number and name both formations.
b) The column of two is not a prescribed formation; it is formed from a column.

14. Read the passage and answer the questions given below. [6 Marks]

During verbal communication, one person talks and others listen and react. The conversation can be informative, in the form of questions, a negotiation, and statement or open-ended questions, instruction, etc. The situation can be formal or informal. In relationships, communication is usually informal. A speaker, to clear up misunderstanding of what has been said may ask questions to gain information and may repeat it in a different way (paraphrase). Speech problem, long sentences, mumbling, speaking too softly, hearing problems, listeners interrupting the speaker, loud external noises, etc. all hamper proper verbal communication.

a) In what form conversation can be informative? [2 Marks]

Answer: The conversation can be informative in the form of questions, a negotiation, a statement, open-ended questions, instruction, etc.

Teacher's Note:
a) Name at least three or four forms to earn full marks.
b) The answer is in the second sentence of the passage.

b) How can a speaker clear up misunderstanding of what has been said? [2 Marks]

Answer: To clear up a misunderstanding, the speaker may ask questions to gain information and may repeat what was said in a different way (paraphrase).

Teacher's Note:
a) Give both methods: asking questions and paraphrasing.
b) Use the word "paraphrase" from the passage.

c) Write any two factors that can hamper proper verbal communication [2 Marks]

Answer:
1. Speaking too softly or mumbling.
2. Loud external noises.

Teacher's Note:
a) Speech problems, long sentences, hearing problems and listeners interrupting the speaker are also accepted.
b) Write exactly two factors, as the question asks.

PART-II: SPECIAL SUBJECTS (ARMY WING) (Total Marks: 21)

SECTION-D

15. Choose the correct answer.

I. What are the age criteria for IMA? [1 Mark]
a) 16 to 19½ years
b) 16½ to 19 years
c) 19 to 24 years
d) 17½ to 19½years

Answer: c) 19 to 24 years

Teacher's Note:
a) The marking scheme gives 19 to 24 years for entry to IMA.
b) The lower age ranges in the other options are distractors; read the question carefully.

II. When giving a four figured grid reference, the first two numbers indicates- [1 Mark]
(a) EASTING
(b) NORTHINGS
(c) WESTING
(d) SOUTHING

Answer: (a) EASTING

Teacher's Note:
a) In a grid reference, the easting is always read first and the northing second.
b) Remember the rule "along the corridor, then up the stairs".

iii) The smallest fighting unit of a Battalion is- [1 Mark]
a) Platoon
b) Company
c) Section
d) None of the above

Answer: c) Section

Teacher's Note:
a) The section is the smallest fighting unit; platoons and companies are larger.
b) The marking scheme prints this answer as "a) Section", but Section is option (c) in the paper.

iv) The strength of an Infantry Battalion is [1 Mark]
a) 20, 45, 640
b) 22, 42, 794
c) 18, 37, 542
d) 22, 42, 690

Answer: b) 22, 42, 794

Teacher's Note:
a) The strength is written in the order officers, JCOs and other ranks.
b) Options (b) and (d) both begin with 22, 42, so check the last figure (794).

v) Assertion (A). Field Craft is an aspect of military training which relates to the conduct of a soldier in face of the enemy.
Reasoning (R) it’s an art of using the ground and the weapon available to the best of one’s own advantages. [1 Mark]
a) Both A & R are true and R is the correct explanation of A.
b) Both A & R are true but R is not the correct explanation of A.
c) A is true and R is false
d) A is false but R is true

Answer: a) Both A & R are true and R is the correct explanation of A.

Teacher's Note:
a) Using ground and weapons to one's advantage explains how a soldier conducts himself in front of the enemy.
b) First check that each statement is true, then check whether R explains A.

SECTION-E

16. A) Name any two gallantry awards in the face of enemy (war time). [2 Marks]

Answer:
1. Param Vir Chakra
2. Mahavir Chakra

Teacher's Note:
a) Vir Chakra is also an accepted answer.
b) Do not write peace-time awards like the Ashok Chakra here.

OR

B) Name any two gallantry awards during peace-time. [2 Marks]

Answer:
1. Ashok Chakra
2. Kirti Chakra

Teacher's Note:
a) Shaurya Chakra is also an accepted answer.
b) Do not mix these up with war-time awards like the Param Vir Chakra.

17. Write any two features or facilities of Walkie/Talkie [2 Marks]

Answer:
1. It is a portable, easy-to-use, two-way radio for simplex communication (one person talks at a time).
2. It has multiple channels (for example, 128), works on VHF/UHF bands and has long battery life for field use.

Teacher's Note:
a) A robust build for durability and clear audio and range are also accepted features.
b) Each feature carries 1 mark, so write exactly two.

18. How many types of North are there? Name them. [2 Marks]

Answer: There are three types of North:
1. True North
2. Magnetic North
3. Grid North

Teacher's Note:
a) The number carries 1 mark and the names carry 1 mark.
b) The difference between True North and Magnetic North is called magnetic variation (see Q19B).

19. A) Differentiate between contour and gradient. [2 Marks]

Answer:
1. Contour: An imaginary line following the surface of the ground at a certain level.
2. Gradient: The slope of the ground, expressed as the angle the ground makes with the horizontal.

Teacher's Note:
a) Use the key words "imaginary line" for contour and "slope" for gradient.
b) Each definition carries 1 mark.

OR

B) What is magnetic variation? [2 Marks]

Answer: Magnetic variation is the difference between True North and Magnetic North. It depends on time and place.

Teacher's Note:
a) The definition carries 1 mark and "depends on time and place" carries 1 mark.
b) Name both Norths correctly in the answer.

20. A) i) What are the methods of Judging distance?
ii) Name the different types of Ground. [4 Marks]

Answer:
i) Methods of judging distance:
1. Unit of Measure
2. Appearance Method
3. Section Average
4. Key Range
5. Halving
6. Bracketing
ii) Types of ground:
1. Broken Ground
2. Flat and Open Ground
3. High Ground
4. Dead Ground

Teacher's Note:
a) Each part carries 2 marks, so answer both parts under clear headings.
b) Do not confuse "dead ground" (a type of ground) with a method of judging distance.

OR

B). What do you mean by Knots and Lashing. Explain lashing in detail? [4 Marks]

Answer:
1. Knots: A knot is a way to join two pieces of material or rope together. Important knots are the Thumb Knot, Overhand Knot, Figure Eight Knot and Thief Knot.
2. Lashing: Lashing is the method of tying poles or other objects with ropes, or tying them to a stationary object, to hold them securely in place.
3. Types of lashing: Square Lashing and Frapping Turns.

Teacher's Note:
a) Define both terms first, then give the types of lashing.
b) Naming a few knots adds value to the knots part.

21. Read the paragraph and answer the questions given below. [4 Marks]

Though on 11 December, Ali messaged the United Nations requesting for a cease-fire, it was not authorized by the President Yahya Khan and the fighting continued. Following several discussions and consultations, and subsequent attacks by the Indian forces, Yahya decided to stop the war in order to save the lives of the Pakistani soldiers. The actual decision to surrender was taken by Niazi on 15 December and was conveyed to Manekshaw through the United States Consul General in Dhaka (then Dacca) via Washington. But Manekshaw replied that he would stop the war only if the Pakistani troops surrendered to their Indian counterparts by 9:00 a.m. on 16 December. Later the deadline was extended to 3:00 p.m. of the same day on Niazi's request. The Instrument of Surrender was formally signed on 16 December 1971.

A) Who was the President of Pakistan during 1971 (India - Pakistan) war? [1 Mark]

Answer: President Yahya Khan.

Teacher's Note:
a) The first sentence of the paragraph names President Yahya Khan.
b) Do not confuse him with Niazi, who took the decision to surrender.

B) When was the actual decision to surrender taken by Niazi? [1 Mark]

Answer: On 15 December 1971.

Teacher's Note:
a) The decision was taken on 15 December, one day before the surrender was signed.
b) Do not write 16 December here; that is the answer to part C.

C) On which date the instrument of surrender formally signed? [1 Mark]

Answer: On 16 December 1971.

Teacher's Note:
a) The last sentence of the paragraph gives this date.
b) Write the full date with the year 1971.

D) Who was the Indian Chief of Army staff during the 1971 war? [1 Mark]

Answer: Gen Sam Manekshaw.

Teacher's Note:
a) The paragraph names Manekshaw as the person to whom the surrender decision was conveyed.
b) Write his rank and full name: Gen Sam Manekshaw.

PART-II: SPECIAL SUBJECTS (NAVY WING) (Total Marks: 21)

SECTION-D

15. Choose the correct answer.

i) How many gun Salutes are fired in the harbor for Admiral? [1 Mark]
a) 07 Gun Salutes
b) 17 Gun Salutes
c) 13 Gun Salutes
d) 15 Gun Salutes

Answer: b) 17 Gun Salutes

Teacher's Note:
a) An Admiral receives a 17 gun salute in the harbour.
b) Learn the number of gun salutes for each rank, as they are common MCQs.

ii) Which is NOT a component of Sonar - [1 Mark]
a) Transducer
b) Receiver.
c) Transmitter
d) Torpedo

Answer: d) Torpedo

Teacher's Note:
a) A torpedo is a weapon, not a part of the Sonar system.
b) Read the word NOT carefully; the other three are Sonar components.

iii) International Nautical mile (nm) is the length equals to- [1 Mark]
a) 1582 metre
b) 1852 kilometre
c) 1852 metre
d) 1582 kilometre

Answer: c) 1852 metre

Teacher's Note:
a) One international nautical mile is 1852 metres.
b) Watch both the digits (1852, not 1582) and the unit (metre, not kilometre).

iv) A method of joining the ends of two ropes together or making an eye at the end of a rope, by interlocking the strands is known as- [1 Mark]
a) Blocking
b) Coiling
c) Splicing
d) Anchoring

Answer: c) Splicing

Teacher's Note:
a) Splicing joins ropes by interlocking their strands.
b) The key words "interlocking the strands" point to splicing.

V) Assertion (A). In Navy communication are the means whereby command is exercised or executed.
Reason (R) An efficient system of communication is vital for fighting efficiency of a modern fleet [1 Mark]
a) Both A & R are true and R is the correct explanation of A
b) Both A & R are true but R is not the correct explanation of A.
c) A is true and R is false.
d) A is false but R is true.

Answer: a) Both A & R are true and R is the correct explanation of A

Teacher's Note:
a) Command in the Navy depends on communication, which is why efficient communication is vital for the fleet.
b) First check that each statement is true, then check whether R explains A.

SECTION-E

16. Name four parts of an Anchor. [2 Marks]

Answer:
1. Anchor Ring
2. Shank
3. Fluke
4. Crown

Teacher's Note:
a) Each part carries half a mark.
b) Anchor Shackle, Pea or bill, and tripping palm are also accepted parts.

17. A) What are the uses of Control markings? [2 Marks]

Answer: Control markings are used to control the opening of doors, hatches and certain other openings, in accordance with the condition in force.

Teacher's Note:
a) Mention doors, hatches and other openings.
b) The phrase "in accordance with the condition in force" is the key point.

OR

B). What are watertight control markings? [2 Marks]

Answer:
1. The markings which control the watertight conditions are called Watertight Control Markings. They are painted black on doors and hatches.
2. They maintain watertight integrity in case of flooding, so that the flooded compartment can be isolated.

Teacher's Note:
a) Mention the black colour and the purpose of isolating a flooded compartment.
b) Each point carries 1 mark.

18. List the occasions when the National flag is flown by ships at sea. [2 Marks]

Answer:
1. When the President is embarked.
2. When escorting the President’s ship.
3. When engaged in a war.

Teacher's Note:
a) Two of the three occasions relate to the President, so remember them together.
b) List all three occasions to be safe.

19. A). How many Fleets are there in the Indian Navy? Name them. [2 Marks]

Answer: The Indian Navy has two Fleets:
1. Western Fleet
2. Eastern Fleet

Teacher's Note:
a) The number carries 1 mark and the names carry 1 mark.
b) Write "Fleet" with each name.

OR

B). Write the duties of VCNS in the IHQ in MoD ? [2 Marks]

Answer:
1. The VCNS is the head of Staff Branch - I and is responsible for planning, programming and all administrative services.
2. He co-ordinates the IHQ and officiates as CNS in his absence.

Teacher's Note:
a) VCNS means Vice Chief of the Naval Staff, and CNS means Chief of the Naval Staff.
b) "Officiates as CNS in his absence" is the key point examiners look for.

20. A). Differentiate between magnetic compass and gyro compass. [4 Marks]

Answer:
1. Magnetic compass: It is a magnet freely suspended in a horizontal plane, which settles with one end pointing approximately to the true north.
2. Its reading does not give the true north because of external factors such as the earth’s magnetism and the ship’s magnetic property.
3. Gyro compass: It is a rapidly spinning wheel or gyroscope, whose axis is made to point along the meridian towards true north.
4. Its reading is measured clockwise from 000 to 360.

Teacher's Note:
a) Each compass carries 2 marks, so explain both.
b) The main difference: the magnetic compass points only approximately to true north, while the gyro compass points to true north.

OR

B). What are the various instruments / equipment used in navigation? Explain anyone of them. [4 Marks]

Answer:
1. Instruments used in navigation: Radar, Sextant, Compass, Echo Sounder, Log, Plotter and Chart.
2. Echo Sounder: It is an instrument by which the depth of water below the keel of the ship can be measured.
3. It helps to prevent the ship from grounding.

Teacher's Note:
a) Listing the instruments carries 2 marks and explaining one carries 2 marks.
b) You may explain Radar (Radio Detection and Ranging, which finds the direction and range of objects with radio waves) or the Sextant (fixing position by the sight of heavenly bodies) instead.

SECTION-F

21. Read the paragraph and answer the questions given below. [4 Marks]

On 26 January 1950 when India became a Republic, the Royal Indian Navy was re-designated as Indian Navy and the new Indian Naval Ensign (Naval Flag) was adopted on this date. The Indian National flag had earlier taken the place of Union Jack on 15th Aug 1947. Soon after independence the first cruiser INS Delhi and 03 ‘R’ class destroyers Rajput, Ranjit & Rana joined the Indian Navy. In the late 50’s the second cruiser INS Mysore & 02 Frigates INS Trishul & Talwar were acquired

a) When was the Royal Indian Navy re-designated as Indian Navy? [1 Mark]

Answer: On 26 January 1950.

Teacher's Note:
a) This was the day India became a Republic.
b) Do not write 15 August 1947; that is when the National flag replaced the Union Jack.

b) Name the first cruiser that joined Indian Navy after the Independence. [1 Mark]

Answer: INS Delhi.

Teacher's Note:
a) INS Mysore was the second cruiser, not the first.
b) Rajput, Ranjit and Rana were destroyers, not cruisers.

c) When was the new Indian Naval Ensign (Naval flag) adopted? [1 Mark]

Answer: On 26 January 1950.

Teacher's Note:
a) The Ensign was adopted on the same day the Navy was re-designated.
b) The first sentence of the paragraph gives both facts.

d) How many cruisers and frigates were acquired in late 50’s? [1 Mark]

Answer: In the late 50’s, one cruiser (the second cruiser, INS Mysore) and 02 frigates (INS Trishul and Talwar) were acquired.

Teacher's Note:
a) Give the numbers and the names of the ships.
b) The answer is in the last sentence of the paragraph.

PART-II: SPECIAL SUBJECTS (AIR WING) (Total Marks: 21)

SECTION-D

15. Choose the correct answer.

i) The letter ‘N’ is identified in RT Procedures as: [1 Mark]
a) Nova
b) Nano
c) November
d) Nine

Answer: c) November

Teacher's Note:
a) In the phonetic alphabet used in RT procedures, N is "November".
b) "Nine" is a number, not a letter code.

ii) Size, viewing angle, visibility, aircraft finish, visual characteristics, colours and external markings are the factors which help us in------- [1 Mark]
a) Making an aircraft
b) Identification of an aircraft
c) Division of an aircraft
d) Costing of an aircraft

Answer: b) Identification of an aircraft

Teacher's Note:
a) All these factors are things we see, so they help to identify an aircraft.
b) The marking scheme prints this answer as "c) Identification of an aircraft", but it is option (b) in the paper.

iii) Which of these is a training aircraft? [1 Mark]
a) Chetak
b) Cheetah
c) Kiran
d) MI-17

Answer: c) Kiran

Teacher's Note:
a) Kiran is a trainer aircraft of the IAF.
b) Chetak, Cheetah and MI-17 are helicopters.

iv) Operation Safed Sagar was the codename assigned to the Indian Air Force's strike to support the Ground troops in which war? [1 Mark]
a) 1948
b) 1965
c) 1971
d) 1999

Answer: d) 1999

Teacher's Note:
a) Operation Safed Sagar was the IAF's operation in the 1999 Kargil war.
b) Do not confuse it with the 1971 war.

v) Assertion (A) Meteorological forecasts and observations form an integral part of flight planning for safe execution of flight.
Reason (R). Weather is global in nature and atmospheric changes occur on scales ranging from a few centimeters to thousands of kilometers. [1 Mark]
a) Both A & R are true and R is the correct explanation of A.
b) Both A & R are true but R is not the correct explanation of A.
c) A is true and R is false.
d) A is false but R is true

Answer: a) Both A & R are true and R is the correct explanation of A.

Teacher's Note:
a) Because weather changes on every scale, forecasts are needed for safe flight planning.
b) First check that each statement is true, then check whether R explains A.

SECTION-E

16. Write the four basic elements used in Maps [2 Marks]

Answer:
1. Scale
2. Direction
3. Conventional Signs (Legend)
4. Grid System

Teacher's Note:
a) Each element carries half a mark.
b) Write "Legend" along with conventional signs, as both terms are used.

17. A) List the various air traffic service units. [2 Marks]

Answer:
1. Area Control Centre
2. Approach Control Office
3. Aerodrome Control Tower
4. Flight Information Centre

Teacher's Note:
a) Each unit carries half a mark, so list all four.
b) Write the full names of the units, not abbreviations.

OR

B). Mention any two objectives of air traffic services [2 Marks]

Answer:
1. To prevent collision between aircraft.
2. To expedite and maintain an orderly flow of traffic.

Teacher's Note:
a) Preventing collision between aircraft on the maneuvering area and obstructions on that area is also accepted.
b) Write exactly two objectives.

18. A) Draw a diagram of forces acting on Aircraft during flight. [2 Marks]

Answer: The diagram shows an aircraft in flight with four arrows for the four forces acting on it:
1. Lift - acting upwards.
2. Weight - acting downwards.
3. Thrust - acting forwards, in the direction of flight.
4. Drag - acting backwards, opposite to the direction of flight.

Teacher's Note:
a) Label all four arrows clearly: Lift, Weight, Thrust and Drag.
b) Lift and Weight act opposite to each other, and so do Thrust and Drag.
c) The marking scheme's picture puts the Thrust label at the tail and the Drag label at the nose; in your diagram draw Thrust forwards and Drag backwards.

OR

B). State Bernoulli's principle [2 Marks]

Answer: Bernoulli's principle states that for a fluid in motion, an increase in its speed occurs simultaneously with a decrease in its pressure or a decrease in its potential energy.

Teacher's Note:
a) The key idea is: higher speed means lower pressure.
b) Use the word "simultaneously" in your statement.

19. Name the different Branches in the Indian Air Force [2 Marks]

Answer:
1. Flying Branch
2. Navigation Branch
3. Education Branch
4. Medical Branch
5. Administration Branch
6. Logistic Branch
7. Meteorology Branch
8. Engineering Branch

Teacher's Note:
a) List as many branches as you can; each name is a separate point.
b) Do not add explanations; the names alone are enough.

20. A). Summarize the construction of static model in aero-modelling. [4 Marks]

Answer:
1. Study the construction plans provided with the model kit thoroughly, then shape the various parts using sandpaper and sand blocks as shown in the blue print.
2. Fix the whole plan on the drawing board, place the individual parts on the blue print and check that they are as per the blue print.
3. Assemble the parts as per the dimensions given in the blue print.
4. Apply dope with a brush in thin coats two to three times, sand the excess dope with fine emery paper, and apply a coat of surfacer with a brush or spray gun so that all the wooden area is covered.

Teacher's Note:
a) Write the steps in the correct order: plan, shaping, fixing, assembly, finishing.
b) Keep within 80 words by giving only the main action in each step.

OR

B). Summarize the construction of control line model in aero-modelling [4 Marks]

Answer:
1. Fix the whole plan on the drawing board, pin the individual parts on it and glue them together with cement.
2. After drying, assemble the components with correct alignment, and smooth the edges and curves with sand papers of various grades.
3. Assemble the bell crank assembly with the lead outs carefully, then cover the model with silver foil, monokote or tissue paper and apply dope in thin coats two to three times.
4. Treat the engine compartment with paint before installing the engine, which is mounted on hard wood beams or on screws against the plywood.

Teacher's Note:
a) The bell crank assembly with lead outs is what makes a control line model different, so mention it.
b) Patience and meticulous work are needed during smoothing and assembly.

21. Read the passage below and answer the questions as follows: [4 Marks]

The construction/building of static models is one of the main events in all India level competitions like AIVSC and RDC. In AIVSC, the given static model has to be built in stipulated time and for RDC competition, three different static models have to be built that is fighter, transport and helicopter. Constructions plans are provided normally with all model kits. These plans should be studied thoroughly. Then follow the shaping of various parts using sandpaper and sand blocks as shown in the blue print. After which the whole plan is fixed on the drawing board. Then the whole drawing is placed on the blue print and make sure it is proper as per the blue print.

i. In which camps the construction of static models competition takes place. [1 Mark]
a) RDC
b) AIVSC
c) CATC
d) both RDC and AIVSC

Answer: d) both RDC and AIVSC

Teacher's Note:
a) The first sentence names both AIVSC and RDC.
b) CATC is not mentioned in the passage.

ii. In Republic Day Camp three different static models have to be built. [1 Mark]
a) True
b) False

Answer: a) True

Teacher's Note:
a) For RDC, three models are built: fighter, transport and helicopter.
b) In AIVSC, only the given static model is built in a stipulated time.

iii. Shaping of various parts of the static model as shown in the blue print is done using- [1 Mark]
a) chart paper
b) sand
c) sandpaper and sand blocks
d) Soil

Answer: c) sandpaper and sand blocks

Teacher's Note:
a) The passage says shaping is done "using sandpaper and sand blocks".
b) Option (b) "sand" is a trap; choose the complete phrase.

iv. --------------------------- should be thoroughly studied before Aeromodelling. [1 Mark]
a) Aircraft
b) Construction plan
c) Helicopter
d) Ships

Answer: b) Construction plan

Teacher's Note:
a) The passage says construction plans come with model kits and should be studied thoroughly.
b) This is the first step of building a static model (see Q20A).