﻿ Electrical Engineering QUESTIONS|page-2

# Electrical Engineering QUESTIONS

Exam Name Electrical Engineering QUESTIONS Electrical Engineering QUESTIONS and Answers exams contains the questions from various competitive exams.These questions are the part of previous year paper.These kind of questions would be helpful in preparing for exams like IAS, PCS, UPSC, NDA, CDS SSC, RRB, PSC, IBPS MASTER EXAM 9996 Anirudh(39312)

.
Question: the Q factor of a parallel resonant circuit is given by

Question: in an R-L series circuit, the phase difference between applied voltage and circuit current will increase if

Question: A series circuit has R =..4 0, XL = 12 E2 and Xc = 9 Q and is supplied with 200 V, 50 Hz.Calculate the power.

Question: The reactance of 1 farad capacitance when connected to a DC circuit is

Question: a supply voltage of 230 V, 50 Hz is fed to a residental building. write down its equation for instantaneous value.

Question: The AC bridge used for measurement of dielectric loss of capacitor is

Question: In electrodynamometer ammeter,the deflection of the pointer is proportional to

Answer:mean-square of currents in fixed coil and moving coil

Question: In which of the following transformers, is the secondary winding always kept closed ?

Question: two holes are drilled in the disc on a diameter of energy-meter to

Question: Which of the following instruments has the highest torque/weight ratio among the given instruments ?

Question: If current through the operating coil of a moving iron instrument is doubled,the operating force becomes

Question: In moving iron instruments, the iron moves in a direction to cause

Question: a moving coil instrument has a resistance of 10O and gives full scale defection at 0.5 V potential difference across it. how it be adapted to measure a current upto 100 A

Answer:By connecting shunt resistance of 0.005O across the meter

Question: The multiplying power of the shunt of a milliammeter is 8. If the circuit current is 200 mA, then current through the meter is

Question: The material to be used in the manufacture of a standard resistor should be of

Answer:high resistivity and low temperature coefficient

Question: In a 3-phase induction motor crawling happens at

Question: a 4-pole, 3-phase induction motor runs at 1440 rpm on a 50 Hz supply. find the slip speed.

Question: low voltage winding are placed nearer to the core in the case of concentric winding because