NCCER ELECTRICAL LEVEL 2 MODULE 3 EXAM QUESTIONS

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NCCER ELECTRICAL LEVEL 2 MODULE 3 EXAM QUESTIONS

Qs and Ans - Expert- Explanation - ing score -25 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: Unless it is protected or is a low-voltage type of track, track lighting on a wall must be installed at least

Answer:

5' above the floor

Question 2: Ultrasonic occupancy sensors are triggered by

Answer:

motion Question 3: In an office where people sit quietly at desks from 8:30 a.m. to 5:00 p.m., Which type of lighting control would be most efficient in turning off the lights when they were not needed?

Answer:

timer

Question 4: NEC Article 410 contains requirements for installing

Answer:

recessed lighting fixtures Question 5: The junction box and recessed lighting fixture should be sepa by a minimum distance of

Answer:

1'

Question 6: which of the following describes a color temperature 4,100k and higher

Answer:

cool in tone with a bias toward blue and greens

Question 7: which of the following materials absorbs the most light?

Answer:

Dark red glazed bricks

Question 8: when used outdoors, photo sensors should be aimed due

Answer:

north Question 9: Which color temperature produces produces a balance between warmth and coolness

Answer:

3,5000k Question 10: NEC requirements must be adhered to when installing incandescent recessed lighting fixtures because they

Answer:

are a fire hazard if installed incorrectly

Question 11: fluorescent lamps with a single pin at each end are known as

Answer:

instant-start lamps Question 12: The type of high-intensity discharge (HID) lamp that has excellent color rendition is the

Answer:

metal halide lamp

Question 13: Which type of ballast has the highest efficiency

Answer:

Electronic instant-start

Question 14: which of the following will shorten the life of a filament in an incandescent lamp?

Answer:

operating at warmer temperature Question 15: when white light is through a prism, how many total colors are visible

Answer:

6 Question 16: when installing a surface-mounted fixture weighing more than 50 pounds, it

Answer:

can be supported by the outlet box if the box is designed and marked to support more than 50 pounds.

Question 17: chandeliers are a type of

Answer:

suspended lighting fixture

Question 18: which lamp produces a cool color tone?

Answer:

Daylight-simulating fluorescent Question 19: Which of the following should be at least 18' in length when used to connect a junction box mounted above a suspended ceiling to a fixture installed in a suspended ceiling?

Answer:

Fixture whip

Question 20: which of the following is an HD ballast category?

Answer:

constant wattage autotransformer Question 21: which of the following are often used in conjunction with time clocks to turn off lighting when it is no longer needed?

Answer:

photo sensors

Question 22: Compared to standard incandescent lamps, which of the following provides longer life and improved light quality when used in a lamp

Answer:

halogen gas Question 23: which of the following contain ballasts that provide high voltage across the lamp's electrodes at startup, causing then to emit electrons?

Answer:

instant-start lamps

Question 24: Light enters the eye through a transparent layer called the

Answer:

cornea Question 25: Which section of the NEC requires that at least 6" of free conductor length be left at each outlet box when cutting the branch circuit wires in preparation for connecting a light fixture?

Answer:

NEC Section 300.14