Year 3 IEC FINAL Review Questions and
Answers Rated A+
___ is a type of overload relay used in a motor start.
a. Melting allow
b. Bimetallic
c. Magnetic
d. All of these
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
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
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
disconnect (or safety switch)
Inherent motor protection devices are built into the motor and are reset ___.
Select one:
a. manually
b. automatically
automatically
Inherent motor protection devices are built into the ___ and are reset automatically.
, Select one:
a. motor
b. starter
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
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
more
Where construction work is in progress, OSHA requires areas, aisles, stairs , ramps, runways, corridors,
offices, shops, and storage areas to be lighted.
Answers Rated A+
___ is a type of overload relay used in a motor start.
a. Melting allow
b. Bimetallic
c. Magnetic
d. All of these
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
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
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
disconnect (or safety switch)
Inherent motor protection devices are built into the motor and are reset ___.
Select one:
a. manually
b. automatically
automatically
Inherent motor protection devices are built into the ___ and are reset automatically.
, Select one:
a. motor
b. starter
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
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
more
Where construction work is in progress, OSHA requires areas, aisles, stairs , ramps, runways, corridors,
offices, shops, and storage areas to be lighted.
