Related Questions

A synchronous motor installed at the receiving end substation operates with such an excitation that it takes power at lagging power factor. Now if the applied voltage of the synchronous motor goes down, the power factor of the synchronous motor will
A remain same
B go down
C improve
D none of the above
Of the 120 households in an area, 55 have cars, 35 have motor bikes, and 20 have both cars and motor bikes. How many of the households in the area have neither cares nor motor bikes?
A 110
B 90
C 50
D 30
A motor pool has 300 vehicles of which 30% are trucks. 20% of all the vehicles in the motor pool are diesel, including 15 trucks. What percent of the motor pool is composed of vehicles that are neither trucks nor diesel?
A 165%
B 90%
C 65%
D 10%
By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor?
A Frame
B Shaft
C Commutator
D Stator
One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven
A Runs as a generator
B Does not run as a generator
C Also runs as a motor comes to stop after sometime
D None of these
Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be
A Level compounded
B Under compounded
C Cumulatively compounded
D Differentially compounded
The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as
A Quarrying of stones
B Blasting of stones
C Seasoning of stones
D Dressing of stones
The skip distance is the maximum distance upto which ionospheric reflection is possible.
A True
B False
Transmission voltage of ll kV is normally used for distances upto
A 20 - 25 km
B 40 - 50 km
C 60 - 70 km
D 80 - 100 km
The operating voltage of extra high tension cables is upto
A 6.6 kV
B 11 kV
C 33 kV
D 66 kV

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