NCCER PRACTICE TEST QUESTIONS AND ANSWERS

NCCER PRACTICE TEST QUESTIONS
AND ANSWERS
208 V - Answer-The PEAK voltage in a nominal 120/208 VAC system is:
a) 120 V
b) 170 V
c) 208 V
d) 277 V

Nylon - Answer-THWN conductors have an outer jacket made of:
a) thermoset
b) teflon
c) nylon
d) nomex

Cutaway view of a building - Answer-What is shown on a sectional drawing?
a) cutaway view of a building
b) top view of a building
c) front view of a building
d) side view of a building

No one - Answer-Who is allowed to remove another electrician's tag or lock from any
valve, switch, or piece of equipment without proper authorization?
a) an inspector
b) no one
c) any supervisor
d) owner

Note any changes to the original drawings - Answer-The MAIN purpose of a revision
block on an electrical drawing is to:
a) Note any changes to the original drawings
b) identify the professional engineer
c) indicate the location of the project
d) provide a title for the drawing

Class I Div I - Answer-Which of the following is the classified location where
combustible vapors are always present?
a) Class I Div I
b) Class II, Div II
c) Class II, Div I
d) Class III, Div I

Ropebanding - Answer-In a guardrail system, the guardrails can be made of any of the
following EXCEPT: