GURU MCQs provides Electrical Engineering MCQs for Job Test and Interview Preparation, suitable for fresh graduates, students, and competitive exams. Most repeated Electrical Engineering MCQs section is frequently encountered in CSS, PMS, Inspector, ASI, Sub-inspector, Constable, FPSC, PPSC, ETEA, FIA, Police, Army, Navy, Airforce, IB, MOFA, ASF, LHC, Educators, and various other competitive exams, as well as government and private job assessments. Electrical Engineering most repeated MCQs include Analog and Digital Communications, Control Systems, Power Electronics, Electric Circuits, Electric machines, Electrical measurement & units, Utilization of Electrical Energy, Basic Electrical Engineering, Electrical Installation, Power Systems, Testing & maintenance of electrical equipment’s – and much more.

71. Which of the following materials has a negative temperature co-efficient of resistance?

A. Copper
B. Aluminum
C. Carbon
D. Brass

72. Ohm’s law is not applicable to____________?

A. vacuum tubes
B. carbon resistors
C. high voltage circuits
D. circuits with low current densities

73. Which is the best conductor of electricity _______________?

A. Iron
B. Silver
C. Copper
D. Carbon

74. For which of the following ‘ampere second’ could be the unit ?

A. Reluctance
B. Charge
C. Power
D. Energy

75. All of the following are equivalent to watt except_____________?

A. (amperes) ohm
B. joules/seC.
C. amperes x volts
D. amperes/volt

76. A resistance having rating 10 ohms, 10 W is likely to be a__________?

A. metallic resistor
B. carbon resistor
C. wire wound resistor
D. variable resistor

77. Which one of the following does not have negative temperature co-efficient ____________?

A. Aluminium
B. Paper
C. Rubber
D. Mica

78. Varistors are______________?

A. insulators
B. non-linear resistors
C. carbon resistors
D. resistors with zero temperature coefficient

79. Insulating materials have the function of______________?

A. preventing a short circuit between conducting wires
B. preventing an open circuit between the voltage source and the load
C. conducting very large currents
D. storing very high currents

80. Insulating materials have the function of___________?

A. preventing a short circuit between conducting wires
B. preventing an open circuit between the voltage source and the load
C. conducting very large currents
D. storing very high currents