IEC FINAL Review NEWEST ACTUAL
EXAM 2024 WITH 200 QUESTIONS AND
VERIFIED ANSWERS GRADED A
A manual reversing starter is an assembly that includes ___ and a
mechanical interlock.
I. 2 contactors II. 2 OL sections
III. 1 contactor IV. 1 OL section
Select one:
a. I & II
b. II & III
c. I & IV
d. III & IV - ANSWER>>2 contactors, 1 OL section
A manual reversing starter requires ___ OL section(s).
Select one:
a. one
b. two - ANSWER>>two
Internal drum switch connections are made between terminals 5 and 6
when the switch is in the ___ position.
Select one:
a. Forward
b. Reverse
c. both a and b
d. neither a nor b - ANSWER>>Forward and Reverse
The control switching for a reversing starter can consist of ___.
Select one:
a. a stop PB, a start PB, and a forward/reverse selector switch
b. a stop PB, a forward PB, and a reverse PB
c. either a or b
d. neither - ANSWER>>either a or b
,___ is a type of overload relay used in a motor start.
a. Melting allow
b. Bimetallic
c. Magnetic
d. All of these - ANSWER>>All of these
A melting allow overload in a magnetic motor starter ____.
Select one:
a. actuates when excessive motor circuit current is present and opens only
the affected motor circuit power contacts on the starter
b. must be replaced after it operates
c. can be reset immediately after it operates
d. actuates when excessive motor circuit current is present and opens the
control circuit to de-energize the coil
e. actuates when excessive control circuit current is present and opens the
control circuit to de-energize the coil - ANSWER>>actuates when
excessive motor circuit current is present and opens the control circuit to
de-energize the coil
A 240-volt, 3Φ motor would require a starter with a minimum of ___ power
pole(s) to open the circuit.
Select one:
a. 3
b. 1
c. 2 - ANSWER>>3
Refer to Figure 321.13 Symbol S is a ___.
Select one:
a. circuit interrupter (or breaker)
b. disconnect (or safety switch)
c. circuit breaker with thermal OLs
d. circuit breaker with magnetic OLs
e. circuit breaker with thermal and magnetic OLs - ANSWER>>disconnect
(or safety switch)
, Inherent motor protection devices are built into the motor and are reset
___.
Select one:
a. manually
b. automatically - ANSWER>>automatically
Inherent motor protection devices are built into the ___ and are reset
automatically.
Select one:
a. motor
b. starter - ANSWER>>motor
When light strings are utilized on a construction site, empty sockets or
sockets with shattered lamps should be replaced ___ after being reported.
Select one:
a. before the next work shift
b. immediately
c. within 72 hours
d. within 24 hours - ANSWER>>immediately
The OSHA regulations set the minimum lighting level for different areas on
constructions sites. These levels are dependant upon the task being
performed in the area. For example, ___ foot candles are required in an
area used for offices than the number that would be required for storage.
Select one:
a. more
b. less - ANSWER>>more
Where construction work is in progress, OSHA requires areas, aisles, stairs
, ramps, runways, corridors, offices, shops, and storage areas to be lighted.
Select one:
a. True
b. False - ANSWER>>True
EXAM 2024 WITH 200 QUESTIONS AND
VERIFIED ANSWERS GRADED A
A manual reversing starter is an assembly that includes ___ and a
mechanical interlock.
I. 2 contactors II. 2 OL sections
III. 1 contactor IV. 1 OL section
Select one:
a. I & II
b. II & III
c. I & IV
d. III & IV - ANSWER>>2 contactors, 1 OL section
A manual reversing starter requires ___ OL section(s).
Select one:
a. one
b. two - ANSWER>>two
Internal drum switch connections are made between terminals 5 and 6
when the switch is in the ___ position.
Select one:
a. Forward
b. Reverse
c. both a and b
d. neither a nor b - ANSWER>>Forward and Reverse
The control switching for a reversing starter can consist of ___.
Select one:
a. a stop PB, a start PB, and a forward/reverse selector switch
b. a stop PB, a forward PB, and a reverse PB
c. either a or b
d. neither - ANSWER>>either a or b
,___ is a type of overload relay used in a motor start.
a. Melting allow
b. Bimetallic
c. Magnetic
d. All of these - ANSWER>>All of these
A melting allow overload in a magnetic motor starter ____.
Select one:
a. actuates when excessive motor circuit current is present and opens only
the affected motor circuit power contacts on the starter
b. must be replaced after it operates
c. can be reset immediately after it operates
d. actuates when excessive motor circuit current is present and opens the
control circuit to de-energize the coil
e. actuates when excessive control circuit current is present and opens the
control circuit to de-energize the coil - ANSWER>>actuates when
excessive motor circuit current is present and opens the control circuit to
de-energize the coil
A 240-volt, 3Φ motor would require a starter with a minimum of ___ power
pole(s) to open the circuit.
Select one:
a. 3
b. 1
c. 2 - ANSWER>>3
Refer to Figure 321.13 Symbol S is a ___.
Select one:
a. circuit interrupter (or breaker)
b. disconnect (or safety switch)
c. circuit breaker with thermal OLs
d. circuit breaker with magnetic OLs
e. circuit breaker with thermal and magnetic OLs - ANSWER>>disconnect
(or safety switch)
, Inherent motor protection devices are built into the motor and are reset
___.
Select one:
a. manually
b. automatically - ANSWER>>automatically
Inherent motor protection devices are built into the ___ and are reset
automatically.
Select one:
a. motor
b. starter - ANSWER>>motor
When light strings are utilized on a construction site, empty sockets or
sockets with shattered lamps should be replaced ___ after being reported.
Select one:
a. before the next work shift
b. immediately
c. within 72 hours
d. within 24 hours - ANSWER>>immediately
The OSHA regulations set the minimum lighting level for different areas on
constructions sites. These levels are dependant upon the task being
performed in the area. For example, ___ foot candles are required in an
area used for offices than the number that would be required for storage.
Select one:
a. more
b. less - ANSWER>>more
Where construction work is in progress, OSHA requires areas, aisles, stairs
, ramps, runways, corridors, offices, shops, and storage areas to be lighted.
Select one:
a. True
b. False - ANSWER>>True
