# Current Source Speed MCQ Questions & Answers

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

Question 1

1 calorie is equal to ________

A. 4.18 J
B. 5.23 J
C. 6.23 J
D. 8 J

Question 2

1 Horse-power is equal to _______

A. 745.7 W
B. 741 W
C. 747.7 W
D. 740 W

Question 3

A higher value of armature reaction means the lower value of the short circuit ratio.

A. True
B. False

Question 4

Calculate the reactive power in a 29.6 ? resistor.

A. 45.1 VAR
B. 41.1 VAR
C. 46 VAR
D. 0 VAR

Question 5

Calculate the reactive power in an 84 M? resistor.

A. 1.47 VAR
B. 45.6 VAR
C. 0.59 VAR
D. 0 VAR

Question 6

Calculate the value of the power if voltage=4.2 V and current=10 A.

A. 42 W
B. 12 W
C. 16 W
D. 18 W

Question 7

Calculate the value of the resistance of a wire of length = 12 m, area = 2 m2 and ? = 6 ?-m.

A. 36 ?
B. 6 ?
C. 26 ?
D. 10 ?

Question 8

Calculate the value of the short circuit ratio if the per unit value of synchronous reactance is 1 ?. Assume armature resistance is 0 ohm.

A. 1
B. 2
C. 3
D. 4

Question 9

Calculate the value of the short circuit ratio if the per unit value of synchronous reactance is 1.5 ?.

A. 0.66
B. 0.33
C. 0.17
D. 0.12

Question 10

Calculate the value of the short circuit ratio if the per unit value of synchronous reactance is 4.2 ?.

A. 0.26
B. 0.23
C. 0.67
D. 0.72

Question 11

Calculate the value of the time period if the frequency of the signal is 58 sec.

A. .017 sec
B. .014 sec
C. .045 sec
D. .077 sec

Question 12

The slope of the I-V curve is 160°. Calculate the value of resistance.

A. .36 ?
B. .41 ?
C. .89 ?
D. 2.74 ?

Question 13

The unit of SCR is ?.

A. True
B. False

Question 14

Calculate the reactive power in a 29.6 Ω resistor.

A. 45.1 VAR
B. 41.1 VAR
C. 46 VAR
D. 0 VAR

Question 15

Calculate the reactive power in an 84 MΩ resistor.

A. 1.47 VAR
B. 45.6 VAR
C. 0.59 VAR
D. 0 VAR

Question 16

Calculate the value of the resistance of a wire of length = 12 m, area = 2 m2 and Ρ = 6 Ω-m.

A. 36 Ω
B. 6 Ω
C. 26 Ω
D. 10 Ω

Question 17

Calculate the value of the short circuit ratio if the per unit value of synchronous reactance is 1 Ω. Assume armature resistance is 0 ohm.

A. 1
B. 2
C. 3
D. 4

Question 18

Calculate the value of the short circuit ratio if the per unit value of synchronous reactance is 1.5 Ω.

A. 0.66
B. 0.33
C. 0.17
D. 0.12

Question 19

Calculate the value of the short circuit ratio if the per unit value of synchronous reactance is 4.2 Ω.

A. 0.26
B. 0.23
C. 0.67
D. 0.72

Question 20

The slope of the I-V curve is 160°. Calculate the value of resistance.

A. .36 Ω
B. .41 Ω
C. .89 Ω
D. 2.74 Ω