Second Year IEC Final EXAM Questions
And Answers
Anex _____ in the NEC contains examples of load calculations for
dwellings. - ANSWER>>D
Which of the installations listed below would be a wet location?
-a receptacle installed on the exterior wall of a building
- a run of PVC conduit installed on a fishing pier
-a luminaire installed on a parking lot pole - ANSWER>>all of these
Which of the following is an example of a bare conductor?
- a 12 awg THHN copper wire
- the bare ground wire contained within romex (NM cable) sheathing
-the bare aluminum wire twisted with triplex - ANSWER>>the bare
aluminum wire twisted with triplex
Which of the following statements is TRUE for an individual (or
dedicated) branch circuit that is run in a conduit with other circuits? -
ANSWER>>it can share a neutral with another circuit
Equipment designed to open circuits under ____ shall have an
interrupting rating not less than the nominal circuit voltage and the
current that is available at the line side of the equipment.
- short circuit
-overload
-ground fault - ANSWER>>all of these
, The NEC permits the insulation for an ungrounded conductor to be
_____ in color.
- orange
-black
-brown
-yellow - ANSWER>>any of these
Which of the following locations requires that a three-way switch be
installed at the lower landing and another three-way switch be installed
at the upper landing to control the stair way lighting between the 1st
and 2nd floors? - ANSWER>>a townhome
A 175- amp breaker protects a feeder that originates in a 277/480-volt,
3-ph, 4 wire service panel in an office building. Which of the following
conductors is the smallest size permitted for the feeder ? -
ANSWER>>2/0
A 200-amp breaker protects a feeder that originates in a 120/240 volt,
3 ph, 4 wire service panel in a movie theatre. Which of the following
THHN/THWN conductors is the smallest size permitted for the feeder ?
- ANSWER>>3/0
The maximum number of 3-pole circuit breakers used as service
disconnects permitted in a 3 phase panelboard is ______. - ANSWER>>6
Which of the following are characteristics of THHN/THWN insulation?
- heat-resistant
And Answers
Anex _____ in the NEC contains examples of load calculations for
dwellings. - ANSWER>>D
Which of the installations listed below would be a wet location?
-a receptacle installed on the exterior wall of a building
- a run of PVC conduit installed on a fishing pier
-a luminaire installed on a parking lot pole - ANSWER>>all of these
Which of the following is an example of a bare conductor?
- a 12 awg THHN copper wire
- the bare ground wire contained within romex (NM cable) sheathing
-the bare aluminum wire twisted with triplex - ANSWER>>the bare
aluminum wire twisted with triplex
Which of the following statements is TRUE for an individual (or
dedicated) branch circuit that is run in a conduit with other circuits? -
ANSWER>>it can share a neutral with another circuit
Equipment designed to open circuits under ____ shall have an
interrupting rating not less than the nominal circuit voltage and the
current that is available at the line side of the equipment.
- short circuit
-overload
-ground fault - ANSWER>>all of these
, The NEC permits the insulation for an ungrounded conductor to be
_____ in color.
- orange
-black
-brown
-yellow - ANSWER>>any of these
Which of the following locations requires that a three-way switch be
installed at the lower landing and another three-way switch be installed
at the upper landing to control the stair way lighting between the 1st
and 2nd floors? - ANSWER>>a townhome
A 175- amp breaker protects a feeder that originates in a 277/480-volt,
3-ph, 4 wire service panel in an office building. Which of the following
conductors is the smallest size permitted for the feeder ? -
ANSWER>>2/0
A 200-amp breaker protects a feeder that originates in a 120/240 volt,
3 ph, 4 wire service panel in a movie theatre. Which of the following
THHN/THWN conductors is the smallest size permitted for the feeder ?
- ANSWER>>3/0
The maximum number of 3-pole circuit breakers used as service
disconnects permitted in a 3 phase panelboard is ______. - ANSWER>>6
Which of the following are characteristics of THHN/THWN insulation?
- heat-resistant
