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Electrical Engineering Mcqs — Test 117

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Question 1
Light duty cranes are used in which of the following ?
Question 2
When the load is above _______________ a synchronous motor is found to be more economical?
Question 3
________________is preferred for automatic drives?
Question 4
_______________watt-hours per tonne km is usually the specific energy consumption for suburban services?
Question 5
Which of the following motors are pre-ferred for overhead travelling cranes ?
Question 6
The rate of acceleration on suburban orurban service is in the range_________________?
Question 7
The braking retardation is usually in the range__________________?
Question 8
Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction ?
Question 9
If the co-efficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails ?
Question 10
The coasting retardation is around_________________?