Part - 1
1. Generally an electrolytic capacitor is made to provide.
large value of capacitance.
2. Which of the following capacitors of identical rating will have the smallest dimensions?
Ceramic capacitor.
3. Internal heating of capacitor is usually attributed to.
leakage resistance.
4. During discharge of a battery.
the voltage of cell decreases.
5. Which efficiency of the battery is more?
Watt hour efficiency.
6. If three 30 μF capacitors are connected in series, the net capacitance is.
10 μF.
7. For making capacitors, it is better to select a dielectric having.
high permittivity.
8. The materials having low retentivity are suitable for making.
temporary magnets.
9. Which of the following determines total power in a series circuit.
Source voltage times the current.
10. What should be observed when connecting a voltmeter into a
DC circuit?
Polarity.
11. A potential divider is normally connected
outside the generator circuit towards the load circuit.
12. In a pure inductive circuit.
The current lags applied voltage by 90 degree
13. The average power in a pure inductive circuit is.
0 (ZERO)
14. In a R-L series circuit the power factor P.F. is.
Leading.
15. In an R-C-L series circuit, during resonance, the impedance will be.
Minimum.
16. Kirchhoff’s current law (KCL) is applicable only to.
junction in a network.
17. Flow of electrons in the circuit constitutes
an electric current.
18. The material used for the magnetic circuit where high value of flux density required is
ferro cobalt.
19. If two resistances of 10 Ω and 10 Ω are connected in parallel the equivalent
resistance is.
5 (five)
20. Unit of magnetic flux is.
Weber.
21. Fleming's left-hand rule is used to find.
direction of force on a current carrying conductor in a magnetic field
22. In which of the following voltage sources is the movement of conductors in a magnetic field used to produce voltage.
in a D.C. generator
23. The relative permeability of a material is 0.95. The material is.
diamagnetic
24. The series magnet of a single-phase Energy meter consists of coil of.
thick wire of few turns
25. The relative permeability of paramagnetic material is.
greater than unity
26. Magnetic recording tape is most commonly made from.
ferric oxide.
27. Reluctance offered by the magnetic circuit depends upon.
A. nature of magnetic material
B. length of magnetic flux path
C. cross-sectional area of the material
D. All options are correct
28. Moving iron meters can be used to measure.
Both AC & DC
29. Which one of the following is applicable to any network linear or non-linear, active or passive, time varying or invariant as long as Kirchhoff's laws are not violated.
Tellegen's theorem.
30. In which of the following, it is not desired to attain the condition of maximum power transfer?
Electric circuits
31. A current mirror can be used as an active load because.
it has high AC resistance
32. In the below given network, the ideal closed loop voltage gain is.
1 (one)
33. Which of the following is essential for the reciprocity theorem to be applicable?
A. Linearity
B. Bilateralism
C. No initial history
D. All options are correct
34. If the capacitor of a single-phase motor is short circuited, the motor will.
not start.
35. The speed of the rotating magnetic field in an induction motor is known as the.
synchronous speed.
36. When the frequency of the rotor of an induction motor is small, it can be
measured by.
d.c. moving coil milli-voltmeter.
37. The value of the capacitor in a capacitor start motor controls the.
starting torque
38. Which of the following is most economical method for starting single-phase motor?
Capacitor start method
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