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This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Radio Telemetry”.

1. Radio telemetry is useful when source and receiver is at ________________
a) Long distance separation
b) Short distance separation
c) Varying separation distance
d) All of the mentioned

Explanation: Radio telemetry can be used where the distance between source and receiver may vary.

2. PLCC stands for _________________
b) Power Line Carrier Current
c) Peak Line Carrier Current
d) None of the mentioned

Explanation: PLCC is the short of power line carrier current.

3. Multiplexing is not possible in radio telemetry.
a) True
b) False

Explanation: Multiplexing of data in radio telemetry is possible.
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4. Carrier frequency in radio telemetry will be _________________
a) Very low value
b) Very high value
c) Any value greater than 100 Hz
d) Frequency appropriate to conductor size

Explanation: For multiplexing in radio telemetry, carrier frequency should be appropriate to conductor size.

5. For space telemetry, carrier frequency should be _______________
a) Very high value
b) Very low value
c) Frequency appropriate to distance
d) Any value greater than 100 Hz

Explanation: Very high value of carrier frequency helps in reducing antenna size.
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6. Frequency range of space telemetry should be _________________
a) Less than 216 MHz
b) Between 216 – 235 MHz
c) Between 235 – 412 MHz
d) Above 412 MHz

Explanation: Carrier frequency range of space telemetry system should be between 216 MHz and 235 MHz.

7. Which of the following represent stability relaxation for RF carrier?
a) 0 %
b) +/- 1 %
c) +/- 0.1 %
d) None of the mentioned

Explanation: RF carrier must remain stable within +/- 0.1 %.

8. For FM/FM modulation, what is the bandwidth allowed?
a) 0.2 MHz
b) 0.5 MHz
c) 0.9 MHz
d) 1 MHz

Explanation: For FM/FM modulation, bandwidth allowed is 0.5 MHz.

9. Output power of transmitter will be _____________
a) Very low
b) Very high
c) Varying
d) None of the mentioned

Explanation: Output power of the transmitter is kept very low.

10. Output power of transmitter will be ______________
a) 2 to 10 w
b) 2 to 50 w
c) 2 to 100 w
d) Above 100 w

Explanation: Output power of the transmitter is always kept very low and it lies in the range of 2 to 100 w.

Sanfoundry Global Education & Learning Series – Instrumentation Transducers.

To practice all areas of Instrumentation Transducers, here is complete set of 1000+ Multiple Choice Questions and Answers.