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SSC JE / State Electricity Boards JE Electrical Exams QUIZ-19
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Question 1
A shunt motor runs at on a circuit. Its armature resistance is and the current taken is in addition to field current. What resistance must be placed the speed to the current in armature remaining the same?
Question 2
The current drawn by a d.c. motor of armature resistance and back e.m.f. is
Question 3
A 400 V, 50 kVA, 0.8 p.f. leading, connected, 50 Hz synchronous motor has a reactance of and negligible armature resistance. The friction and windage losses are 2 kW and core loss is 0.8 kW. The shaft is supplying 9 kW at a p.f. of 0.8 leading. The line current drawn is
Question 4
Kirchoff’s voltage law applies to circuit with ____________.
Question 5
A piece of aluminum wire is stretched to reduce its diameter to half of its original value. Its resistance will become
Question 6
Fig. shows a silicon transistor biased with base-bias method. Assume zero signal collector current is to be . What will be the operating point for?
Question 7
Which of the following applications needs frequent starting and stopping of electric motor ?
Question 8
What is the factor of safety used for current ratings in a power installation?
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ESE & GATE EEGeneralOct 29ESE & GATE EE