Residential Appliance Installer Exam

1. Which of the branch circuits uses grounding type receptacles?

20 A

10 A

15 A

Both 15 and 20 A

Grounding type receptacles are designed to provide a safe and reliable connection to the grounding system of a building. This helps to protect against electrical shock and provides a pathway for fault currents. Both 15 A and 20 A branch circuits can use grounding type receptacles because the amperage rating of the circuit does not determine the type of receptacle required. The choice of receptacle depends on the specific electrical needs of the appliances or devices being used on the circuit.

Explanation

Grounding type receptacles are designed to provide a safe and reliable connection to the grounding system of a building. This helps to protect against electrical shock and provides a pathway for fault currents. Both 15 A and 20 A branch circuits can use grounding type receptacles because the amperage rating of the circuit does not determine the type of receptacle required. The choice of receptacle depends on the specific electrical needs of the appliances or devices being used on the circuit.

2. Underground PVC conduit shall be not less than _____ from the inside wall of the pool, unless space limitations prevent otherwise.

5 ft

8 ft

10 ft

25 ft

Section 680.10

Explanation

Section 680.10

3. The service conductors shall be connected to the service disconnecting means by _____ or other approved means.

Pressure connecteors

Clamps

Solder

A or b

section 230.81

Explanation

section 230.81

4. The working space in front of the electric equipment shall not be less than _____ wide, or the width of the equipment, whichever is greater.

15 in

30 in

40 in

60 in

section 110.26(A)(2)

Explanation

section 110.26(A)(2)

5. What is the maximum approval electrical trade size in IMC?

1in

4in

8in

6in

The maximum approval electrical trade size in IMC is 4in. This means that in accordance with the IMC regulations, the largest electrical trade size that is allowed is 4 inches. This size limitation ensures that electrical installations meet safety standards and do not pose any hazards.

Explanation

The maximum approval electrical trade size in IMC is 4in. This means that in accordance with the IMC regulations, the largest electrical trade size that is allowed is 4 inches. This size limitation ensures that electrical installations meet safety standards and do not pose any hazards.

6. The motor branch-circuit short-circuit and ground-fault protective device shall be capable of carrying the _____ current of the motor.

Varying

Starting

Running

Continuous

section 430.52(B)

Explanation

section 430.52(B)

7. The service disconnecting means shall be marked as suitable for use as service equipment and shall be _____ .

Weatherproof

Listed

Approved

Acceptable

section 230.66

Explanation

section 230.66

8. The ungrounded and grounded conductors of each _____ shall be grouped by wire ties or similar means at the panelboard or other point of origination.

Branch circuit

Multiwire branch circuit

Feeder circuit

Service-entrance conductor

section 210.4(D)

Explanation

section 210.4(D)

9. For equipment rated 800 A or more, personal doors located less than _____ from the nearest edge of the working space must open and have listed panic hardware:

15ft

25ft

30ft

10ft

For equipment rated 800 A or more, personal doors located less than 25ft from the nearest edge of the working space must open and have listed panic hardware. This means that if there is a personal door within 25ft of the working space, it must have panic hardware installed for emergency situations. Panic hardware allows for quick and easy exit in case of an emergency, ensuring the safety of individuals working with the equipment.

Explanation

For equipment rated 800 A or more, personal doors located less than 25ft from the nearest edge of the working space must open and have listed panic hardware. This means that if there is a personal door within 25ft of the working space, it must have panic hardware installed for emergency situations. Panic hardware allows for quick and easy exit in case of an emergency, ensuring the safety of individuals working with the equipment.

10. By what distance should a power limited fire alarms circuit conductors should be separated by from an insulated electrical light?

2in

4in

6in

3in

The power limited fire alarm circuit conductors should be separated by a distance of 2 inches from an insulated electrical light. This separation is necessary to prevent any potential interference or damage to the fire alarm circuit due to the electrical light. By maintaining a distance of 2 inches, the risk of electrical faults or short circuits is minimized, ensuring the proper functioning of the fire alarm system.

Explanation

The power limited fire alarm circuit conductors should be separated by a distance of 2 inches from an insulated electrical light. This separation is necessary to prevent any potential interference or damage to the fire alarm circuit due to the electrical light. By maintaining a distance of 2 inches, the risk of electrical faults or short circuits is minimized, ensuring the proper functioning of the fire alarm system.