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34. The instantaneous value of a quantity is 5 Sin (2xft— 1), Then the phase in degree with
respect to the quantity of reference is

A) - 57.3° 8) - 90° ©) 47९ 0) - 56.3

35. When pure inductive coil is connected to an AC supply then the average demand of power
from power supply is

A) Zero B) Maximum C) Minimum D) None of these

36. The inductive reactance offered to the third harmonic component of the voltage is
A) 371 8) 611 ©) 12 0) nfl

37. The current in a pure capacitor leads its voltage by
A) Half cycle B) Full cycle C) Quarter cycle D) None of these

38. When three phase symmetrical balanced load is connected to 3 phase 4 wire star system,
the neutral wire will be carrying three currents which are exactly equal in magnitude but

A) are 240° out of phase with each other
B) are in phase with each other

C) are 90° out of phase with each other |
D) are 120° out of phase with each other

39. In 8 3 phase star connection system क is the
A) Angle between phase voltage and phase current
B) Angle between phase voltage and line voltage
C) Angle between line voltage and line current
D) Angle between line voltage and phase current

40. For a balanced star connected system, load impedance per phase 2 is equal to
A) ‏3ر2‎ 8) 92, ©) 432, 0) ۵59

41. The efficiency of a solar cell is between

A) 5% to 10% B) 15% to 20% C) 25% to 40% D) 50% to 60%
42. The purpose of earthing the electrical equipment is

A) To bring it to zero potential B) To avoid shock to the operator

C) Both A) and B) D) None of these

A 7.