Read and download CBSE Class 12 Operation And Maintenance Of Communication Devices Question Paper 2019 designed as per the latest question paper pattern and Class 12 examination guidelines issued by CBSE, NCERT and KVS. The past year Question Papers for Class 12 Operation And Maintenance Of Communication Devices have been provided with solutions which will help students to assess their performance and find out topics in Operation And Maintenance Of Communication Devices grade 12 which they need to improve to get better marks in Standard 12 exams. After solving these last year papers also refer to solved Sample Papers for Class 12 Operation And Maintenance Of Communication Devices available on our website to build strong understanding of the subject
Operation And Maintenance Of Communication Devices Question Paper Class 12 2019
Students can refer to the below Class 12 Operation And Maintenance Of Communication Devices Question Paper designed to help students understand the pattern of questions that will be asked in Grade 12 exams. Please download CBSE Class 12 Operation And Maintenance Of Communication Devices Question Paper 2019
Operation And Maintenance Of Communication Devices Class 12 Question Paper 2019
CBSE Class 12 Operation And Maintainence Of Communication Devices Question Paper 2019. Students can download the last year board exams question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.
SECTION A
1. Modulating frequency is
(a) Higher than carrier frequency
(b) Lower than carrier frequency
(c) Equal to carrier frequency
(d) Can have any value
2. In free space, the speed of electromagnetic waves is
(a) 300 metres/second
(b) 3 × 104 metres/second
(c) 1 × 10 metres/second
(d) 3 × 108 metres/second
3. VHF signals propagate through
(a) Ionosphere
(b) Troposphere
(c) Surface of the earth
(d) Waveguide
4. In a cellular mobile system, the shape of the cells is
(a) Circular
(b) Hexagonal
(c) Pentagon
(d) Rectangular
5. A geostationary satellite takes one round of its orbit in
(a) One hour
(b) Four hours
(c) Twelve hours
(d) Twenty-four hours
6. The source of electrical power in a satellite system is
(a) Battery Cells
(b) Generators
(c) Solar Panels
(d) Fuel Cells
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