Armature-Terminal Voltage MCQ Questions & Answers

Armature-Terminal Voltage MCQs : This section focuses on the "Armature-Terminal Voltage". These Multiple Choice Questions (MCQs) should be practiced to improve the Armature-Terminal Voltage skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Calculate the active power in a 17 ? resistor with 18 A current flowing through it.

A. 5508 W

B. 5104 W

C. 5554 W

D. 5558 W

Question 2

Calculate the active power in a 181 H inductor.

A. 2448 W

B. 1789 W

C. 4879 W

D. 0 W

Question 3

Calculate the active power in a 457 F capacitor.

A. 715 W

B. 565 W

C. 545 W

D. 0 W

Question 4

Calculate the active power in a 7481 H inductor.

A. 1562 W

B. 4651 W

C. 0 W

D. 4654 W

Question 5

Calculate the frequency of the waveform x(t)=45sin(40?t+5?).

A. 24 Hz

B. 27 Hz

C. 23 Hz

D. 20 Hz

Question 6

Calculate the moment of inertia of the rod about its center having a mass of 11 kg and length of 29 cm.

A. .091 kgm2

B. .072 kgm2

C. .076 kgm2

D. .077 kgm2

Question 7

Calculate the moment of inertia of the rod about its end having a mass of 39 kg and length of 88 cm.

A. 9.91 kgm2

B. 9.92 kgm2

C. 9.96 kgm2

D. 9.97 kgm2

Question 8

Calculate the phase angle of the sinusoidal waveform x(t)=42sin(4700?t+2?÷3).

A. 2?÷9

B. 2?÷5

C. 2?÷7

D. 2?÷3

Question 9

Calculate the shaft power developed by a motor using the given data: Eb = 404V and I = 25 A. Assume frictional losses are 444 W and windage losses are 777 W.

A. 8879 W

B. 2177 W

C. 8911 W

D. 8897 W

Question 10

Calculate the value of the frequency if the capacitive reactance is 13 ? and the value of the capacitor is 71 F.

A. .0001725 Hz

B. .0001825 Hz

C. .0001975 Hz

D. .0001679 Hz

Question 11

The generated e.m.f from 16-pole armature having 57 turns driven at 78 rev/sec having flux per pole as 5 mWb, with lap winding is ___________

A. 44.16 V

B. 44.15 V

C. 44.46 V

D. 44.49 V

Question 12

The slope of the V-I curve is 27°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.

A. .384 ?

B. .509 ?

C. .354 ?

D. .343 ?

Question 13

Calculate the active power in a 17 ω resistor with 18 A current flowing through it.

A. 5508 W

B. 5104 W

C. 5554 W

D. 5558 W

Question 14

Calculate the frequency of the waveform x(t)=45sin(40πt+5π).

A. 24 Hz

B. 27 Hz

C. 23 Hz

D. 20 Hz

Question 15

Calculate the phase angle of the sinusoidal waveform x(t)=42sin(4700πt+2π÷3).

A. 2π÷9

B. 2π÷5

C. 2π÷7

D. 2π÷3

Question 16

Calculate the value of the frequency if the capacitive reactance is 13 Ω and the value of the capacitor is 71 F.

A. .0001725 Hz

B. .0001825 Hz

C. .0001975 Hz

D. .0001679 Hz

Question 17

The slope of the V-I curve is 27°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.

A. .384 Ω

B. .509 Ω

C. .354 Ω

D. .343 Ω