### Solved Question Paper for Lecturer in Electrical Engineering in DTTE, GNCTD conducted by UPSC

21. Consider the following statements for PMMC Instruments:

1. The scale is non-uniformly divided
2. The power consumption is very low as 25 𝜇W to 200 𝜇W
3. The torque-weight ratio is high which gives a high accuracy

Which of the above statements are correct?
(a) 1 and 2 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3

22. The lagging loads when connected to the electrodynamometer wattmeter cause the wattmeter reading to:
(b) Have no effect
(d) Zero

23. The power flowing in a 3-phase, 3-wire balanced load system is measured by two wattmeter method. The reading of wattmeter 𝐴 is 7500 𝑊 and of wattmeter 𝐵 is −1500 𝑊. The power factor of the system will be nearly:
(a) 0.9
(b) 0.7
(c) 0.6
(d) 0.4

24. The self-capacitance of a coil is measured by a 𝑄 meter. The circuit is set into resonance at 2 MHz and the tuning capacitor is 460 𝑝F. The frequency is now adjusted to 4 MHz and resonance conditions are obtained the tuning capacitor at 100 𝑝F . The value of self-capacitance of the coil will be:
(a) 20 𝑝F
(b) 30 𝑝F
(c) 40 𝑝F
(d) 50 𝑝F

25. A coil with a resistance of 10 Ω is connected in the direct-measurement mode. Resonance occurs when the oscillator frequency is 1.0 MHz and the resonating capacitor is set at 65 𝑝F. The percentage error introduced in the calculated value of 𝑄 by 0.02Ω insertion resistance will be:
(a) 0.1 %
(b) 0.2 %
(c) 0.3 %
(d) 0.4 %

26. If two time varying signals of equal amplitude and 270° phase displacement are applied to X and Y plates of CRO, the display will be:
(a) A straight line
(b) An ellipse
(c) A circle
(d) A rectangle

27. If the bandwidth of an oscilloscope is given as direct current to 10 MHz. The fastest rise time a sine wave can have to be accurately reproduced by an instrument will be:
(a) 20 ns
(b) 25 ns
(c) 30 ns
(d) 35 ns

28. In a transducer, the observed output deviates from the correct value by a constant value the resulting error is called:
(a) Zero error
(b) Sensitivity error
(c) Non-conformity error
(d) Hysteresis error

29. The output of transducer depending not only on present input quantity but also depends on input quantities previously applied to it. This property of transducer is called:
(a) Causality
(b) Hysteresis
(c) Stress
(d) Non-elasticity

30. How many bits are in an ASCII code?
(a) 4
(b) 7
(c) 9
(d) 11

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### UPSC Civil Service Preliminary Paper-1 Previous Year Solved Question Papers

Civil Service Preliminary Paper-1 Previous Year Solved Questions for the year 2019 Civil Service Preliminary Paper-1 Previous Year Solved Qu...

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