Showing posts with label Power Engineering Chapter 110. Show all posts
Showing posts with label Power Engineering Chapter 110. Show all posts

An advantage of low voltage switching is

An advantage of low voltage switching is






a) that local and remote control of lights is permitted
b) the wiring does not require conduits
c) changes are simple and economical
d) a and b are correct
e) a, b and c are correct








Answer: E

A luminaire is a

A luminaire is a




a. Type of light reflector
b. Type of light refractor
c. Lamp ballast
d. Complete lighting unit
e. Type of lamp








Answer: D

One of the main types of illumination is:

One of the main types of illumination is:





a. Emergency lighting
b. Direct lighting
c. General (uniform) lighting
d. Structural lighting
e. Indirect lighting







Answer: C

Direct lighting systems:

Direct lighting systems:




a. Have a higher initial cost than indirect lighting
b. Have greater glare control
c. Are more energy efficient than indirect lighting
d. Produce shadow free light
e. Blend with the environment






Answer: C