MCQs of Installation and Commissioning of Rotating Electrical Machines (Testing and Commissioning of Electrical Equipments - 2180901)

Showing 31 to 40 out of 45 Questions

31.

Light duty cranes are generally used in

32.

The range of ratings of electric motor used for rolling mills is of the order of

33.

Which of the following Drying out method is note used in rotating machines?

34.

When do we need drying out of the rotating machine?

(a)	the machine remains ideal for a long time
(b)	every 2 year
(c)	when the insulation resistance test shows a very low value
(d)	when the insulation resistance test shows a very low value and no sign of insulation physical damaged

35.

Which of the following required during drying out process?

(a)	Insulation Resistance & Temprature measuring Device
(b)	Clock
(c)	Heat source
(d)	All of these

36.

Which of the following method is known as the uniform heating method of drying out?

37.

Which of the following is/are the factor to be considered while selecting a motor for the particular service?

(a)	Supply System and Applicable Standard
(b)	Torque, Speed and Load Characteristics
(c)	Duty, Noice level
(d)	All of these

38.

Which of the following is/are the factor to be considered while selecting a motor for the particular service?

(a)	Environment condition and location
(b)	Enclosure & Cooling requirement
(c)	Cost
(d)	All of these

39.

In which of the following enclosure we get the best cooling and poor protection?

40.

In which of the following enclosure we get the poor cooling and best protection?

Showing 31 to 40 out of 45 Questions