Electrical machine MCQs Quizlet (Bank of Solved Questions Answers)

1. One kWh equal____kcal.

A. 863
B. 800
C. 860
D. 816
E. None of these

2. one of the following is used conversion of Scott ___.

A. Single phase to two-phase
B. Three phase to single phase
C. Single phase to three phase
D. None of these

3. In LEDs material used in ______

A. Gallium Arsenide
B. Germanium
C. Silicon
D. Silicon and Germanium
E. None of these

4. One of the following is used two consecutive scores in a three-phase transformer.

A. 120 degree
B. 130 degree
C. 140 degree
D. 50 degree

5.______material is not used to make strain gauges.

A. bronze
B. Pure platinum
C. plastic
D. copper
E. None of these

6._____motors used in refrigerators.

A. Capacitor induction
B. Split phase induction
C. Shaded pole induction
D. None of these

7. converts fixed DC input to a variable DC output voltage through____

A. converter
B. chopper
C. Regulator
D. Stabilizer
E. None of these

8. the circulating current should not exceed ____

A. 10% of normal current
B. 70% of normal current
C. 130% of normal current
D. 75% of normal current

9. Response of a linear interpolator is_____pulse

A. triangular
B. Rectangular
C. Linear ramp
D. None of these

10. ______ test is also called as back to backtest.

A. sumpner test
B. radiation test
C. Field test
D. None of these