Basic Electrical (MCQ)
Question 1: Which of the following is not a passive component?
A Inductor.
B Capacitor.
C Resistor.
D None of the above.
Answer: D None of the above.
Question 2: Piezoelectric effect is carried out in
Acrystal filter.
B m derived.
C composite filter.
D constant k prototype.
Answer: A crystal filter.
Question 3: Which of the following is an active component?
A Varactor.
B Diode.
C Potentiometer.
D Capacitor.
Answer:B Diode.
Question 4: Deflection method direct measurements are most widely used as these are
A most simple and least time consuming.
Bleast time consuming.
C most simple
D most accurate.
Answer: A most simple and least time consuming.
Question 5: Voltage dependent resistors are usually made from
A nichrome.
B charcoal.
C silicon carbide.
Dgraphite.
Answer: A nichrome.
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Question 6: If field current is decreased in shunt dc motor, the speed of the motor
A none of the above.
B increases.
Cdecreases.
Dremains same.
Answer: B increases.
Question 7: Which of the following Transformer can have tap changer?
A Power transformer.
B Current transformer.
CPotential transformer.
D Earthing transformer.
Answer: A Power transformer.
Question 8: What is the mechanical power developed by a DC series motor is maximum?
A Back emf is equal to half the applied voltage.
B Back emf is equal to applied voltage.
CBack emf is equal to zero.
D None of above.
Answer: A Back emf is equal to half the applied voltage.
Question 9: The degree of mechanical vibrations produced by the lamination of a transformer depends on
A tightness of clamping.
Bgauge of laminations.
Csize of laminations.
Dall of the above.
Answer: D tightness of clamping,gauge of laminations,size of laminations all of the above.
Question 10: What is the shunt resistance component equivalent circuit obtained by no load test of an induction motor representative of ?
A core loss only
B windage and friction loss
C Copper loss
Dboth B and C
Answer: A core loss only
Summary Report
Total Questions Attempted: 0
Correct Answers: 0
Wrong Answers: 0
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