Wireless PSI/TO Paper 1

Wireless PSI / TO Technical Paper

Gujarat Police Wireless Branch Mock Test

1. Which layer of the OSI model is responsible for IP addressing and routing?

Data Link Layer Network Layer Transport Layer Physical Layer Not Attempted

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2. In Frequency Modulation (FM), which parameter of the carrier wave is varied?

Amplitude Frequency Phase Wavelength Not Attempted

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3. Which antenna is commonly used for TV reception in the VHF/UHF range?

Yagi-Uda Antenna Horn Antenna Parabolic Reflector Monopole Antenna Not Attempted

4. What is the decimal equivalent of the Binary number (10101)?

19 21 23 25 Not Attempted

5. A Zener diode is primarily used for which of the following?

Rectification Amplification Voltage Regulation Oscillation Not Attempted

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6. Skywave propagation is mainly used for which frequency range?

VLF (3-30 kHz) HF (3-30 MHz) UHF (300-3000 MHz) SHF (Above 3 GHz) Not Attempted

7. Fiber optic cables work on the principle of:

Refraction Total Internal Reflection Scattering Diffraction Not Attempted

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8. Which logic gate is known as the 'Universal Gate'?

AND OR NAND XOR Not Attempted

9. The height of a Geostationary satellite from the Earth's surface is approximately:

36,000 km 20,000 km 1,000 km 400 km Not Attempted

10. What is the full form of VSAT in wireless communication?

Very Small Aperture Terminal Video Signal Antenna Terminal Variable Speed Amplitude Transmitter Voice Satellite Access Technology Not Attempted