Quiz 7 - Commercial Wiring - Unit 12 Flashcards
Codes for electrical appliances can be found in Section 26.
True
False
The CEC defines ‘utilization equipment’ as equipment using electric energy for,
Lighting
Chemical
Heating
Mechanical
All of the above
When an electrician requires to size conductors for an installation,
They should reference the voltage rating of the equipment
They should reference the current rating
They should reference the nameplate data
They should reference the manufacturer warranty
All of the above
Hard wired means temporarily connected.
True
False
Rule 28-500(3b) indicates a standard single pole switch may be used for a 15A branch circuit.
True
False
A motor requires a disconnect according to rules regulated under 28-600.
True
False
Disconnects for a motor don’t require to be horsepower rated according to 28-602.
True
False
An attachment plug can serve as a disconnect but must be rated not less than the ampacity of the CONDUCTORS supplying the motor circuit
True
False
According to 28-604(3b) a disconnect must be,
Within sight
Within 9 meters of the controller
Shall disconnect the controller
All of the above
Both A and B
Figure 12-1 for disconnect location is indicating,
Image A:
Disconnect is located before the controller, within sight and not more than 9 meters
Image B:
Meets all conditions for motor, machinery, controller and within 9 meters
Image C:
Indicates a scenario where the motor, machinery, and disconnect are not meeting the requirement for disconnect location
Image D:
Indicates that Rule 28-604(4b) allows the disconnect can be located outside of the line of sight but it must be able to be locked in the open position.
All of the above
According to 28-604(5) an air-conditioning disconnect must also be within sight and 9 meters of the fan motor.
True
False
Rule 28-602(3b,e) allows a switch to serve as the controller and disconnecting means for installations similar to those of air-conditioners.
True
False
Rule 28-106 requires the motor FLC to be 80% of the conductors supplying the circuit.
True
False
28-300 sets regulation for motor overload protection and Rule 28-308(a) allows for no overload protection provided,
The motor is at least 1hp rated
The motor is continually attended
The motor has OCP rated not less than 15A
All of the above
Time-delay fuses are are an excellent choice for overload protection.
True
False
For every ten degree Celsius increase above the motor temperature rating, the motor life span is reduced by fifty percent.
True
False
The code letter of a motor can be found on the nameplate.
Question 17 options:
True
False
Rule 10-002(d) is providing regulation for bonding non-current carrying conductive parts of electrical equipment.
True
False
If an appliance is double insulated, it requires to be grounded.
True
False
The doughnut machine branch circuit conductors must be rated 125% of the motor FLC.
Question 20 options:
True
False
Rule 10-616(6) allows for metal raceways to be used as a bonding conductor, but, Rule 10-610(3) does not allow for flexible conduit to be used as a ground.
True
False
