Deck 26: Lighting

Question 1

What supplies the high voltage necessary for starting a fluorescent lamp?

Answer 1

The high voltage necessary for starting the fluorescent lamp is supplied by a ballast

Question 2

A lamp that produces light as a result of an electric current passing through a gas is using ____.

A) high-intensity discharge lighting
C) incandescent lighting
B) resistive lighting
D) fluorescent lighting

Answer 2

D

Question 3

When power is applied to the ____________________ lamp, the heating elements heat up, lowering the resistance of the gas within the glass tube.

Answer 3

fluorescent

Question 4

____________________ is the process of replacing the lamps in a luminaire.

Question 5

Ballasts are known to produce radio interference.

Question 6

Which lamp has the longest life expectancy?

A) incandescent
C) low-pressure sodium
B) fluorescent
D) mercury-vapor

Question 7

A lamp that produces light as a result of an electric arc is using ____.

A) high-intensity discharge lighting
C) incandescent lighting
B) resistive lighting
D) fluorescent lighting

Question 8

A complete lighting unit consisting of lamps and parts connecting to a power supply is called a(n) ____________________.

Question 9

Using group relamping, all lamps are usually replaced when they have reached what percentage of rated life expectancy?

A) 20-30%
C) 60-80%
B) 40-50%
D) 70-90%

Question 10

Which type of lamp are the following: Low-pressure sodium lamp, mercury-vapor lamp, metal-halide lamp, high-pressure sodium lamp?

Question 11

It is not important to match lamps to ballast as no harm will occur if they are mismatched.

Question 12

Which of the following is not a part of a high-intensity discharge lamp?

A) base
C) glass envelope
B) filament
D) arc tube

Question 13

Which luminaires require a ballast?

A) incandescent and fluorescent
B) incandescent and high-intensity discharge
C) fluorescent and high-intensity discharge
D) high-intensity discharge only

Question 14

A lamp that produces light as a result of current passing through a resistive filament is using ____.

A) high-intensity discharge lighting
C) incandescent lighting
B) resistive lighting
D) fluorescent lighting

Question 15

A(n) ____________________ is a transformer that limits the lamp current while providing the necessary high-starting voltage for fluorescent and HID lamps.