ONLINE MCQ EE-BASIC ELECTRICAL PART 11

[1] The wire is stretched to double its length, then its resistance R will become
(a) R/2
(b) 4R
(c) 2R
(d) R/4

Answer

[2] The power drawn by the circuit whose input is 20KVA and p.f is 0.8 lagging
(a) 12
(b) 20
(c) 16
(d) 8

Answer

[3] The combined resistance of two equal resistors connected in parallel is equal to
(a) One half the resistance of one resistor
(b) Twice the resistance of one resistor
(c) Four times the resistance of one resistor
(d) One fourth the resistance of one resistor

Answer
[4] The superposition theorem is applicable to circuits only having ………… elements
(a) Non-linear
(b) Passive
(c) Resistive
(d) Linear bilateral

Answer
[5] The Q-factor of a coil is given by
(a) Its power factor
(b) Ratio of max. energy stored & energy dissipated per cycle.
(c) Reciprocal of its power factor
(d) Ratio R/Z

Answer

[6] The power factor at resonance in RLC circuit is
(a) Zero
(b) Unity
(c) 0.5 lagging
(d) 0.5 leading

Answer

[7] Cells are connected in parallel to
(a) Increase the available voltage
(b) Reduce the cost of wiring
(c) Increase the available current
(d) Reduce the time required to fully charge them after use

Answer
[8] The  power factor of a purely resistive circuit is
(a) Zero
(b) Unity
(c) Lagging
(d) Leading

Answer

[9] Which of the following has minimum running cost?
(a) Hydro electric station
(b) Nuclear power station
(c) Thermal power station
(d) Diesel power station

Answer

[10] The color code of a resistor 2.7Kohm with the tolerance of 10% is
(a) Red, violet, red and silver
(b) Red, violet, yellow and gold
(c) Red, violet, orange, silver
(d) Red, violet, red, gold

Answer

ONLINE MCQ EE-BASIC ELECTRICAL PART 12
ONLINE MCQ EE-BASIC ELECTRICAL PART 10

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