Electrical Engineering Questions and Answers

37. When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is shorted or over heated?

shorted

38. A power supply produces a 0.6 W output with an input of 0.7 W. Its percentage of efficiency is.....

85.7%

39. A half-watt is equal to how many milliwatts?

500 mW

40. The first row of a certain determinant has the numbers 3 and 5. The second row has the numbers 7 and 2. The value of this determinant is - 31 or 39?

value is 39

41. The first row of a certain determinant has the numbers 10 and 6. The second row has the numbers 3 and 5. The value of this determinant is 32 or -32?

32

42. Explain Demand Factor?

The ratio of maximum demand and connected load on the power station is called as demand factor.

43.What will happen if a 220volt AC operated bulb or device run by the 220volt DC?

This high voltage may damage the device.

44. What do you mean by electric traction?

Electric Traction means running a machine by using electric energy or power.

45. Why you choose Electrical Engineering?

tell yourself

46. The rate (dP/dδ) of the differential power increased is obtained per differential load angle increased. This are called as electrical stiffness - True or False?

True

47. The assembly of electrical apparatus whose purpose is changing the some major characteristics of the electric supply system is called ........

substation

48. Explain Demand Factor?

The ratio of maximum demand and connected load on the power station is called as demand factor.

49. A basic one-loop dc generator is rotated at 90 rev/s. How many times each second does the dc output voltage peak (reach maximum)?

180

50. If the steel disk in a crankshaft position sensor has stopped with the tab in the magnet's air gap, the induced voltage.......

Zero

                  

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