A 3-hp pump is installed 220 feet from the 220-volt predominant service. What is the voltage
drop when the use of 12 AWG strong wire? - ANS-eight.Eight volts
A circuit breaker does no longer have an interrupter rating proven on it. What is the
interrupter score of this circuit breaker? - ANS-5,000 amperes
A continuous load is a load in which the most modern-day is predicted to continue for at
least how long? - ANS-three hours
A feeder supplies a non-stop lighting fixtures load of forty five amperes and a single motor
load of 30 amperes. What is the ampere score of the feeder? - ANS-ninety four amperes
A becoming is part of a wiring device this is meant broadly speaking to carry out which type
of feature? - ANS-mechanical
A minimal of how many threads wishes to be engaged if device screws are used to lock
bonding jumpers? - ANS-2
A motor controller disconnecting way shall be accepted to be out of sight of the controller for
motor circuits over how many volts? - ANS-1,000 volts, nominal
A motor with a code letter of D shall have what range of kilowatt-amperes in step with
horsepower with locked rotor? - ANS-4.00 to 4.Forty nine
A panelboard for a cellular domestic shall be rated not much less than which of the
following? - ANS-50 amperes
A resistor has the following coloured bands (so as): orange, crimson, brown, silver. What is
the resistor cost? - ANS-320 Ohms (10% tolerance)
A written emergency movement plan is needed for all employers with how many personnel?
- ANS-eleven personnel or greater
All employees ought to obtain training on working in limited and enclosed spaces when
working in open pits that are extra than how many ft intensive? - ANS-four ft
Alternating-modern-day structures of much less than 50 volts will be grounded wherein
provided via transformers, if the transformer deliver device exceeds which of the following? -
ANS-a hundred and fifty volts to floor
, An appliance draws forty amperes when used on a circuit. A awful splice is observed on the
line on the appliance on one of the phase conductors. The splice has a measured resistance
of zero.Five ohms. How a great deal energy is misplaced on the splice? - ANS-800 watts
An appliance for a house is rated at 30 amperes. It is constantly loaded and isn't
motor-operated. What is the minimal branch circuit score this is required if the department
circuit tool isn't indexed for non-stop loading? - ANS-40 amperes
An electric equipment is rated at 1,500 watts, and is connected to a hundred and twenty
volts. What is the resistance related to this equipment? - ANS-9.6 ohms
Approximately how many kilowatts are used by a 3-segment, 480-volt ac motor that draws a
modern-day of fifty two amperes and has a electricity issue score of 88%? - ANS-38kW
Conductors that supply a unmarried motor utilized in a non-stop duty application shall have
an ampacity of now not much less than how many of the motor complete-load modern-day
score? - ANS-one hundred twenty five%
Disregarding exceptions, overcurrent gadgets shall be easily on hand and shall be
established so that the center of the grip of the working cope with of the transfer or circuit
breaker, while in its maximum role, isn't extra than how excessive above the floor or running
platform? - ANS-6 ft, 7 inches
Disregarding exceptions, what's the minimum size copper-clad aluminum underground
carrier conductor permitted? - ANS-6 AWG
Dry-type transformers rated over which voltage will be mounted in a vault? - ANS-35,000
volts
Equipment grounding conductors of naked or insulated aluminum or copper-clad aluminum
shall no longer be terminated within what number of inches of the earth? - ANS-18 inches
For electric powered space heating cables, which coloration of lead twine is used to indicate
a circuit voltage of 240 volt, nominal? - ANS-purple
For apart from a very enclosed switchboard or switchgear, what's the minimum amount of
space that will be furnished among the top of an unshielded switchboard or switchgear and
any combustible ceiling? - ANS-36 inches
For permanently related appliances, the department-circuit overcurrent device shall be
accredited to function the disconnecting method for appliances rated at no longer over -
ANS-three hundred volt-amperes or 1/8 hp.
For pool device, the disconnecting way for all ungrounded conductors shall be quite simply
accessible and within reach from its device and will be located not less than what number of
ft horizontally from the inner partitions of a pool? - ANS-five toes