1. The highway accidents occur mostly at __________
a) Day time
b) Night time
c) Both day and night
d) Early morning hours
Explanation: The highway accidents occur mostly at night time if adequate lighting is not provided.
2. Highway lighting is more important at __________
a) Cities
b) Towns
c) Villages
d) Bridges
Explanation: Highway lighting is more important at bridges because its boundaries should be visible even at night time.
3. Road lighting is a __________
a) Advantage for users
b) Disadvantage for users
c) Economically profitable
d) Obstruction for users
Explanation: Road lighting is an added advantage for users, even headlight of vehicles may be sufficient but it would be better if it is provided.
4. During the construction of highway, more highway lighting preference is given to __________
a) Village
b) Town
c) City
d) Intersections
Explanation: During the construction of highway, more highway lighting preference is given to intersections, as it is the most critical place.
5. If the object appears darker than the road surface it is called __________
a) Discernment
b) Partial discernment
c) Silhouette
d) Reverse silhouette
Explanation: If the object appears darker than the road surface it is called as silhouette. If the reverse process occurs it is called reverse silhouette.
6. Which of the pavement is better for highway lighting?
a) Black top surface
b) Cement concrete
c) WBM
d) Gravel roads
Explanation: Cement concrete roads have a better visibility than other all roads, but they are more expensive.
7. The objects adjacent to the pavement are seen by __________
a) Silhouette
b) Reverse silhouette
c) Lamps
d) Head lights
Explanation: The objects adjacent to the pavement are seen by a process called as reverse silhouette.
8. The intensity of highway lighting is measured in __________
a) Lux
b) Candela
c) Lumen
d) Dioptres
Explanation: The intensity of highway lighting is measured usually in lux, dioptre is unit of focal power, candela and lumen are also units of intensity of light, but not usually used.
9. The minimum amount of highway lighting to be provided on urban roads is __________
a) 10 Lux
b) 15 Lux
c) 30 lux
d) 40 Lux
Explanation: IRC recommends a minimum of 30 lux on urban roads and 15 lux on rural roads.
10. Which of the design factors considered in roadway lighting provide all the necessary features?
a) Lamps
b) Luminaire distribution of light
c) Spacing of lighting
d) Lateral placements
Explanation: The design factors considered in roadway lighting provide all the necessary features are luminaire distribution of light.