Exam 21: Special-Purpose Outletsfood Waste Disposer, Dishwasher
Exam 1: General Information for Electrical Installations18 Questions
Exam 2: Electrical Symbols and Outlets24 Questions
Exam 3: Determining the Required Number of Branch Circuits, Lighting Outlets, Receptacle Outlets26 Questions
Exam 4: Conductor Sizes and Types, Wiring Methods, Wire Connections, Voltage Drop, Neutral Conductor Sizing for Services39 Questions
Exam 5: Conductor Identification, Switch Control of Lighting Circuits, Bondinggrounding of Wiring Devices, Induction Heating31 Questions
Exam 6: Ground-Fault Circuit Interrupters, Arc-Fault Circuit Interrupters, Surge Protective Devices, Immersion Detection Circuit Interrupters, and Appliance Leakage Current Interrupters23 Questions
Exam 7: Luminaires, Ballasts, and Lamps33 Questions
Exam 8: Lighting Branch Circuit for the Front Bedroom22 Questions
Exam 9: Lighting Branch Circuit for the Master Bedroom20 Questions
Exam 10: Lighting Branch Circuitbathrooms, Hallway20 Questions
Exam 11: Lighting Branch Circuit-Front Entry, Porch, Post-Light, Underground Wiring13 Questions
Exam 12: Lighting Branch Circuit and Small-Appliance Circuits for the Kitchen20 Questions
Exam 13: Lighting Branch Circuit for the Living Room16 Questions
Exam 14: Lighting Branch Circuit for the Studybedroom7 Questions
Exam 15: Dryer Outlet, Lighting and Receptacle Circuits for the Laundry, Powder Room, Rear Entry Hall, and Attic19 Questions
Exam 16: Branch Circuits for the Garage and Outdoors20 Questions
Exam 17: Recreation Room14 Questions
Exam 18: Lighting Branch Circuit, Receptacle Circuits for Workshop21 Questions
Exam 19: Special-Purpose Outletswater Pump, Water Heater21 Questions
Exam 20: Special-Purpose Outlets for Ranges, Counter-Mounted Cooking Unit G, and Wall-Mounted Oven F24 Questions
Exam 21: Special-Purpose Outletsfood Waste Disposer, Dishwasher16 Questions
Exam 22: Special-Purpose Outlets for the Bathroom Ceiling Heatventlights K J, the Attic Fan L, and the Hydromassage Tub a18 Questions
Exam 23: Special-Purpose Outletselectric Heating, Air Conditioning27 Questions
Exam 24: Gas and Oil Central Heating Systems20 Questions
Exam 25: Television, Telephone, and Low-Voltage Signal Systems20 Questions
Exam 26: Smoke, Heat, and Carbon Monoxide Alarms, and Security Systems20 Questions
Exam 27: Service-Entrance Equipment20 Questions
Exam 28: Overcurrent Protectionfuses and Circuit Breakers20 Questions
Exam 29: Service-Entrance Calculations17 Questions
Exam 30: Swimming Pools, Spas, Hot Tubs, and Hydromassage Baths38 Questions
Exam 31: Wiring for the Future: Home Automation Systems20 Questions
Exam 32: Standby Power Systems15 Questions
Exam 33: Residential Utility-Interactive Photovoltaic Systems20 Questions
Select questions type
Dishwashers and kitchen waste disposers may be connected to any of the required 20-ampere small-appliance branch circuits in the kitchen.
Free
(True/False)
4.9/5
(85)
Correct Answer:
False
All motor-driven appliances must be provided with a means disconnecting the appliance from the ungrounded conductors. The branch-circuit breaker can serve as the disconnecting means if within sight of the appliance or capable of being ____________________.
Free
(Short Answer)
4.9/5
(83)
Correct Answer:
locked in the "OFF" position
locked in the OFF position
Per the specifications, the branch-circuit conductors for food waste disposers and dishwashers are ____ AWG.
Free
(Multiple Choice)
4.9/5
(73)
Correct Answer:
B
Small-appliance circuits are intended to serve countertops for cord-connected ____ appliances only.
(Multiple Choice)
4.8/5
(92)
The maximum flexible cord length permitted for a kitchen waste disposer is ____.
(Multiple Choice)
4.8/5
(84)
The Code Article that specifically addresses electrical appliances is ____________________.
(Short Answer)
4.9/5
(75)
Lock-off provisions for appliances must be permanently installed on the ____________________ or switch.
(Short Answer)
4.7/5
(79)
NEC 210.23(A)(2) limits cord-connected equipment to ____________________ percent of the branch-circuit ampere rating.
(Short Answer)
4.8/5
(77)
Portable dishwashers are supplied with a 3-wire cord and plug. If the 3-wire plug cap is plugged into a properly connected ____________________ receptacle, the dishwasher is adequately grounded.
(Short Answer)
4.8/5
(87)
A duplex grounding-type receptacle is usually installed in an accessible location under the sink for plugging in the dishwasher and food waste disposer, and it does not have to be ____ protected.
(Multiple Choice)
4.8/5
(97)
Because of the problem of people being scalded, many municipalities and states have implemented code requirements that water heater thermostats be set at not over 120 degrees F (49 degrees C).
(True/False)
4.9/5
(84)
A dual-element fuse sized at approximately 125% of the full-load current rating of the motor adds extra overcurrent protection to the overload protection built into a food-waste disposer.
(True/False)
4.9/5
(87)
Article ____, Part VI, covers equipment grounding and equipment grounding conductors.
(Multiple Choice)
4.9/5
(73)
When a food-waste disposer has an integral ON-OFF switch, an additional separately installed switch ____ required.
(Multiple Choice)
4.9/5
(88)
Explain why a 125-volt, 15- or 20-ampere receptacle installed in an under-cabinet space to supply a dishwasher and/or food-waste disposer is not required to have GFCI protection for personnel.
(Essay)
4.9/5
(103)
The two general methods of connecting food-waste disposers are hard-wired and ____________________.
(Short Answer)
4.9/5
(95)
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