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Analytical Instrumentation MCQ Question Set 30
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1. Which of the following represents a telemeter?
Analog device
Digital device
Both analog and digital device
None of the mentioned
2. Which of the following mode of signals cannot be transmitted using telemetry?
Audio
Visual
Pictures
None of the mentioned
3. All kind of informations are converted into _____
Magnetic data
Electrical data
Optical data
All of the mentioned
4. Telemetry allow data flow in ________
Single direction
Both direction
Depend on design
None of the mentioned
5. Telemetry systems are of electrical type only.
True
False
all of the above
None of the mentioned
6. Which of the following is not true for telemeter?
Designed for all variable
Designed for specific range
Designed for data transmission
Wireless data transmission possible
7. Process of utilizing one data link for multiple data transfer is called ________
Multiplexing
Over transfer
Multiprocessing
None of the mentioned
8. Telemechanics and telemetry are related.
True
False
all of the above
None of the mentioned
9. Medium of transmission in landline telemetry may be _______
Electrical line
Pneumatic line
Electrical and pneumatic line
None of the mentioned
10. Which of the following is correct for electrical line telemetry?
Transmission of electrical voltage
Transmission of electrical voltage
Transmission of analog signal
All of the mentioned
11. Feedback type telemetry systems are possible.
True
False
all of the above
None of the mentioned
12. What happens to the linearity of the telemetry system when feedback is applied?
Increases
Decreases
Nothing happens
None of the mentioned
13. Amplitude of data from pulse telemetry will be _________
Cannot retrieve amplitude data
Pulse characteristics
Number of pulses
None of the mentioned
14. Pulse encoding is important in digital telemetry.
True
False
all of the above
None of the mentioned
15. Power transmission in telephone lines are _______
Open loop telemetry
Closed loop telemetry
May be open loop or closed loop
May be open loop or closed loop
16. Attenuation and phase shift in receiver end is important due to ______
Length of cable used
Impedance of cable
Mode of data transfer
All of the mentioned
17. Which of the following is favoured less?
Cable telemetry
Wireless telemetry
Both cable and wireless telemetry
None of the mentioned
18. Low level signals can be transmitted using cables up to _______
500 m
2 Km
10 Km
50 Km
19. Radio telemetry is useful when source and receiver is at _________
Long distance separation
Short distance separation
Varying separation distance
All of the mentioned
20. PLCC stands for __________
Power Load Carrier Current
Power Line Carrier Current
Peak Line Carrier Current
None of the mentioned
21. Multiplexing is not possible in radio telemetry.
True
False
all of the above
None of the mentioned
22. Carrier frequency in radio telemetry will be ______
Very low value
Very high value
Any value greater than 100 Hz
Frequency appropriate to conductor size
23. For space telemetry, carrier frequency should be _________
Very high value
Very low value
Frequency appropriate to distance
Any value greater than 100 Hz
24. Frequency range of space telemetry should be __________
Less than 216 MHz
Between 216 – 235 MHz
Between 235 – 412 MHz
Above 412 MHz
25. Which of the following represent stability relaxation for RF carrier?
0 %
+/- 1 %
+/- 0.1 %
None of the mentioned
26. For FM/FM modulation, what is the bandwidth allowed?
0.2 MHz
0.5 MHz
0.9 MHz
1 MHz
27. Output power of transmitter will be _________
Very low
Very high
Varying
None of the mentioned
28. Output power of transmitter will be ______
2 to 10 w
2 to 50 w
2 to 100 w
Above 100 w
29. FDM is associated with ________
FM/FM modulation
PDM/FM modulation
Both FM/FM and PDM/FM modulation
None of the mentioned
30. In FDM, carrier signal have ______
Low frequency
Low frequency
Multiplexing is not possible
None of the mentioned
31. FM/FM telemetry is a/an _________
Analog telemetry system
Digital telemetry system
Analog or digital depending on design
None of the mentioned
32. Baseband frequency of FDM will be ______
Less than 70 Hz
Less than 70 KHz
Less than 70 MHz
Less than 70 GHz
33. Upper frequency limit of FDM is constant.
True
False
all of the above
None of the mentioned
34. VCO is used for _______
Amplification
Frequency modulation
Amplitude modulation
None of the mentioned
35. SCO stands for _____
Signal controlled oscillator
Switch controlled oscillator
Sub carrier oscillator
Sweep controlled oscillator
36. Centre frequency of sub carrier signal varies ____
+/- 10%
+/- 7.5%
+/- 5%
+/- 2.5%
37. What will be the frequency modulation index of SCO?
1
2
5
9
38. For mf=5, how many side-bands will have for a modulated signal?
2
4
6
8
39. Time division multiplexing includes ________
Wired link
Radio link
Radio or wire link
None of the mentioned
40. Which of the following data is correct for TDM?
Analog data is transmitted
Digital data is transmitted
Both analog and digital data transmitted
None of the mentioned
41. PAM stands for ________
Pulse Amplitude Modulation
Power Amplitude Modulation
Pulse Additive Modulation
Pulse Amplitude Masking
42. Commutators are mechanical switches in operation.
True
False
all of the above
None of the mentioned
43. Which of the following represents a number of samples per second?
Product of frame rate and number of samples per frame
Frame rate
Ratio of samples per frame and frame rate
None of the mentioned
44. What will be the general number of samples per frame?
18
30
18 or 30
None of the mentioned
45. Maximum rate of commutation will be _________
800 sample per second
900 sample per second
1200 sample per second
1000 sample per minute
46. Amplitude of each pulse of PAM train conveys the amplitude of particular channel sampled.
True
False
all of the above
None of the mentioned
47. PTM stand for __________
Pulse train modulation
Pulse time modulation
Power train modulation
None of the mentioned
48. Which of the following can be generated from the PDM signal?
PPM
PTM
PAM
PFM
49. Which of the following is correct for tactile sensors?
Touch sensitive
Pressure sensitive
Input voltage sensitive
Humidity sensitive
50. Change in output of sensor with change in input is ______
Threashold
Slew rate
Sensitivity
None of the mentioned
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