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ELECTRICAL THEORY EXAM WITH 100- SURE ANSWERS
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ELECTRICAL THEORY EXAM WITH 100- SURE ANSWERS
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10/5/24, 12:18 PMEUNICE
ELECTRICAL THEORY EXAM WITH 100% SURE ANSWERS
Providing a path to the earth often helps (a) True
reduce electrostatic charge.
(a) True
(b) False
Lightning frequently terminates to a point (a) True
of elevation and it strikes nonmetallic as
well as metallic objects with the same
frequency.
(a) True
(b) False
The termination of the lightning strike is (b) False
unlikely to ignite combustible materials.
(a) True
(b) False
Lightning protection is intended to protect (b) False
the building structure itself, as well as the
electrical equipment on or inside the
building structure.
(a) True
(b) False
Nonmagnetic metals are ferrous, meaning (b) False
they do not contain any iron, and cannot
be magnetized.
(a) True
(b) False
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,10/5/24, 12:18 PM
Magnetic lines of force can cross each (b) False
other and they are called flux lines.
(a) True
(b) False
It is not the force of the magnetic field (a) True
through a conductor that produces
electricity; it is the relative motion of the
field to the electrons within the conductor
that produces the movement of electrons.
(a) True
(b) False
People become injured and death might (a) True
occur when voltage pushes electrons
through the human body causing the heart
to go into ventricular fibrillation.
(a) True
(b) False
The severity of an electric shock is (a) True
dependent on the current flowing through
the body, which is impacted by circuit
voltage and contact resistance.
(a) True
(b) False
An electrical arc blast can approach (d) 30,000*F
_______________, which vaporizes metal parts
and produces an explosive and deadly
pressure wave.
(a) 10,000*F
(b) 15,000*F
(c) 25,000*F
(d) 30,000*F
If a conductor carrying current is next to (a) True
another conductor carrying current in the
opposite direction, the electromagnetic
field attempts to push the conductors
apart.
(a) True
(b) False
2/17
, 10/5/24, 12:18 PM
A clamp-on ac ammeter has a coil that is (d) Magnetic
clamped around the conductor and
detects the rising and falling _________ field
being produced due to the as flow through
the conductor.
(a) static
(b) current
(c) power
(d) magnetic
Ohmmeters measure the________ or (d) resistance
opposition to current flow of a circuit or
component.
(a) Voltage
(b) current
(c) power
(d) resistance
The megger is used to measure very high- (d) resistance
_____________ values, such as those found in
cable insulation, or motor and transformer
windings.
(a) Voltage
(b) current
(c) power
(d) resistance
The electric motor on the principle of the (d) magnetic
attracting and repelling forces of ____________
fields.
(a) Voltage
(b) current
(c) power
(d) magnetic
The _________ of a generator is forced to (b) rotor
rotate while it is being subjected to the
magnetic field of the stator.
(a) winding
(b) rotor
(c) stator
(d) b or c
A holding relay is primarily used for worker (b) False
convenience.
(a) True
(b) False
3/17
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