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Which type of lamp is subject to an explosion if the arc tube ruptures?

• Metal halide lamp

• Tungsten-filament lamp

• LED lamp

• Mercury vapor lamp

Light impulses are transferred from the eye to the brain by the part of the eye called the _____.

• rods

• cones

• pupil

• optic nerve

Which type of ballast has high system efficiency and excellent lamp life?

• Electronic programmed-start

• Electronic rapid-start

• Electronic instant-start

• Magnetic rapid-start

The junction box and recessed luminaire should be separated by a minimum distance of_____.

• 8'

• 3'

• 1'

• 5'

The LED lighting component that controls the voltage and/or current is called the_____.

• driver

• heat sink

• controller

• diode

Light first enters the eye through a thin, transparent layer called the _____.

• lens

• retina

• pupil

• cornea

The type of high-intensity discharge (HID) lamp that has excellent color rendition is the _____.

• low-pressure sodium lamp

• high-pressure sodium lamp

• mercury vapor lamp

• metal halide lamp

When installing a surface-mounted luminaire weighing more than 50 pounds, it _____.

• must always be supported independently of the outlet box

• can be supported by the outlet box if the box is designed and marked to support at least the weight of the luminaire

• can be supported by a standard outlet box without additional support

• may be secured to a standard outlet box if securely attached

Which of the following is TRUE with regard to replacing lamps?

• Replacement lamps are designed for use with all voltage ratings.

• Recessed luminaires that contain lamps of the wrong wattage may cycle on and off.

• Never rotate a bi-pin lamp to seat it in the luminaire.

• Dimmers are designed for use with all replacement lamp types.

Which of the following describes a color temperature of 4,100K and higher?

• Warm in tone, enhancing reds and yellows

• Moderate in tone with a balance between warmth and coolness

• Cool in tone with a bias toward blues and greens

• Daylight simulating