IEC YEAR 2 FINAL EXAM 2024
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
When spray application equipment cannot be operated unless the exhaust
ventilation system is operating and functioning properly and spray application is
automatically stopped if the exhaust ventilation system fails the system is said to
be ______. - ANSWERS-interlocked
QUESTION 2
Vertically- mounted SPDT swithces shall be ON when in the ______ position.
-i. up
-i. down - ANSWERS-either i or ii
QUESTION 3
A fused switch for a motor is located in the top row of switches in a motor control
center. This switch is also disconnecting means for the motor. The maximum
height of this switch, from finish floor to the center of the operating handle, is
_______ . - ANSWERS-6'-7"
END OF
PAGE 1
, IEC YEAR 2 FINAL EXAM 2024
QUESTION 4
If a common-trip 2-pole breaker is used for a single phase, 208-circuit, ______.
-i. both "hots" will open when a short circuit or ground fault occurs
-ii. both "hots" can be manually opened - ANSWERS-both i and ii
QUESTION 5
In a 3 phase panelboard that has vertical busbars that are stacked back-to-front, the
B phase feeder conductor is connected to the ___ busbar. - ANSWERS-middle
QUESTION 6
The maximum length of a flexible cord used to connect data-processing equipment
to a branch circuit outlet box is _______. - ANSWERS-4.5 meters
QUESTION 7
The "J" designation in any of the "S-type" flexible cords designates _____. -
ANSWERS-a junior size
END OF
PAGE 2
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
When spray application equipment cannot be operated unless the exhaust
ventilation system is operating and functioning properly and spray application is
automatically stopped if the exhaust ventilation system fails the system is said to
be ______. - ANSWERS-interlocked
QUESTION 2
Vertically- mounted SPDT swithces shall be ON when in the ______ position.
-i. up
-i. down - ANSWERS-either i or ii
QUESTION 3
A fused switch for a motor is located in the top row of switches in a motor control
center. This switch is also disconnecting means for the motor. The maximum
height of this switch, from finish floor to the center of the operating handle, is
_______ . - ANSWERS-6'-7"
END OF
PAGE 1
, IEC YEAR 2 FINAL EXAM 2024
QUESTION 4
If a common-trip 2-pole breaker is used for a single phase, 208-circuit, ______.
-i. both "hots" will open when a short circuit or ground fault occurs
-ii. both "hots" can be manually opened - ANSWERS-both i and ii
QUESTION 5
In a 3 phase panelboard that has vertical busbars that are stacked back-to-front, the
B phase feeder conductor is connected to the ___ busbar. - ANSWERS-middle
QUESTION 6
The maximum length of a flexible cord used to connect data-processing equipment
to a branch circuit outlet box is _______. - ANSWERS-4.5 meters
QUESTION 7
The "J" designation in any of the "S-type" flexible cords designates _____. -
ANSWERS-a junior size
END OF
PAGE 2
