WIREMAN MULTIPLE CHOICE QUESTIONS (MCQ)

WIREMAN MULTIPLE CHOICE QUESTIONS (MCQ)

The...................has a hammer face which is
used to drive in nails and the other end is
used for pulling out nails from the wood.
(a) Mallet   
(b) Claw Hammer
(c) Ball Pen Hammer
(d)Axe
Answer: (b) Claw Hammer

An electrical component with resistance and
inductance elements with draw ……
(a) Leading pf Current
(b) Lagging pf Current
(c) Unity lpf Current
(d) Zero pf Current -
Answer:  (b) Lagging pf Current

The graph between on alternating quantity
and time is called
(a) Bar graph
(b) Pie chart
(c) Curve
(d) Waveform
Answer:  (d) Waveform

The Capacitive Reactance.........
(a) Decreases as frequency increases
(c) Increases as frequency increases
(b) Applies only to series RLC circuits
(d) Increases with the time constant
Answer:  (a) Decreases as frequency increases

Pure silicon crystal atoms contain............valance
electrons as a result of covalent bonding.
(a)  2
(b)  4
(c)  8
(d) 16
Answer: (c)  8

In case of electrical short circuit of a sub-circuit in domestic connection -
(a) Throw water to extinguish the fire   
(b) Switch of the power supply first
(c) Run to intimate the po wer house
(d) Do not act
Answer: (b) Switch of the power supply first
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To work on line wire the electrician should use ….
(a) Goggles
(b) Gloves
(c) Helmet
(d) Watch
Answer:  (b) Gloves

To rescue a victim from electrical shock, one should use -
(a) Iron rod
(b) Copper rod
(c) Wooden rod
(d) Aluminum rod
Answer:  (c) Wooden rod

An isometric drawing present …..
(a) Top view
(b) Front view
 (c) Side view
(d) 3D - view
Answer: (d) 3D - view

The...................is the maximum amount of
reverse voltage which can be applied on a
diode before a breakdown point is reached.
(a) Breakdown Voltage
(b) Zener Voltage .
(c) Peak Inverse Voltage
(d) Threshold Voltage
Answer: (c) Peak Inverse Voltage
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The magnitude of the induced EMF in a coil is
directly proportional to the change of flux
linkages. This law is known as...............
(a) Joule's law
(b) Faraday's second law of electromagnetic induction
(c) Coulomb's law
(d) Faraday's first law of electromagnetic induction
Answer: (b) Faraday's second law of electromagnetic induction

The...... .states that the polarity of the induced
voltage will oppose the change in magnetic
flux causing the induction.
(a) Joule's law
(b) Faraday's law
(c) Coulomb's law
(d) Lenz's law
Answer: (d) Lenz's law

The........,.........materials have permeability
 slightly less than'that of free space.
(a) Paramagnetic
(b) Diamagnetic
(c) Ferromagnetic
(d) Non-magnetic
Answer: (b) Diamagnetic

The............is the property of a magnetic material
which opposes the creation of magnetic flux in it. .
(a) Resistance
(b) Reluctance
(c) Inductance
(d) Conductance
Answer: (b) Reluctance
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The flux density is measured in..................
(a)Tesia
(b) Weber
(c) Ampere-turn
(d) Maxwell
Answer: (a)Tesia

The no load p.f. of a transformer is around …..
(a) Unity
(b) 0.2 lagging
(c) 0.2 leading
(d) Zero

Answer: (b) 0.2 lagging