Deck 3: Road Infrastructure and Design

Question 1

Flashing yellow beam are sometimes employed as

A)stopping signal
B)proceeding signal
C)warning signal
D)none of these

Answer 1

warning signal

Question 2

The thickness of road surfacing depends upon the

A)type of traffic
B)intensity of traffic
C)type of material
D)all of these

Answer 2

all of these

Question 3

The stresses set up in concrete pavements due to change in moisture content are very

A)high
B)low

Answer 3

low

Question 4

Which of the following statement is correct?

A)The sub-base thickness is directly proportional to the group index of the soil
B)The higher the group index of the soil, the larger is the thickness of the sub-base.
C)If the group index value of the sub-base is between 5 and 9, then the sub-base is poor.
D)all of the above

Question 5

A large difference of temperature between the top and the bottom of the slab causes

A)hardening
B)warping
C)crazing

Question 6

The top of the ground on which the foundation of road rests, is called

A)sub-grade
B)soling
C)base
D)wearing layer

Question 7

The roads connecting capital cities of states is called

A)national highway
B)express way
C)state highway
D)capital highway

Question 8

The sub-base course is placed immediately above the

A)sub-grade
B)base
C)wearing course
D)none of these

Question 9

A ater bound macadam road is an example of

A)rigid pavement
B)semi-rigid pavement
C)flexible pavement
D)none of these

Question 10

The term used for major or important roads of a country is

A)country road
B)urban road
C)highway
D)none of these

Question 11

The inward tilt given to the cross-section of the road surface, throughout the length of the horizontal curve, is known as

A)super-elevation
B)cant
C)banking
D)all of these

Question 12

The central portion of a road for high speed vehicles is known as

A)motor way
B)express way
C)shoulder
D)Both (a) and (b)

Question 13

Which of the following statement is correct?

A)Steeper gradients are, sometimes, provided to avoid deep excavations.
B)Steeper gradients are, sometimes, provided to avoid long detours.
C)Exceptional gradient becomes necessary to avoid deep cuttings.
D)all of the above

Question 14

The State Highways should have 8 m wide carriage-way with 2 m wide shoulder on each side

A)Right
B)Wrong

Question 15

A lamniscate fulfils the requirements of a true transition curve.

A)Right
B)Wrong

Question 16

The distance, measured along the centre line of a road, over which a driver can see the opposite object on the road surface, is called

A)sight distance
B)visibility
C)clear distance
D)none of these

Question 17

A gradient at which no tractive force is required to maintain constant speed by a vehicle is called

A)average gradient
B)limiting gradient
C)exceptional gradient
D)floating gradient

Question 18

The theoretical capacity of a highway depends upon the

A)average length of the vehicles
B)average spacing of the moving vehicles
C)either (a) or (b)
D)both (a) and (b)

Question 19

The factor which influences the design of curves, is

A)speed of vehicle
B)maximum permissible super-elevation
C)permissible centrifugal ratio
D)all of these

Question 20

During the detailed survey of a hill road, the first operation is to fix the bench marks.

Question 21

A camber of 1 in 30 means that for a 30 m wide road, the crown of the road will be

A)0.5 m
B)1 m

Question 22

The design criterion for the valley curves is the centrifugal force developed.

Question 23

The main advantage of concrete pavements is that

A)it offers less resistance to traffic
B)it is not slippery when clean
C)it has low maintenance cost
D)all of these

Question 24

For cement concrete roads, a minimum gradient of 1 in 330 can be provided.

Question 25

The design capacity of the road may be defined as the

A)practical capacity or a smaller value determined for use in designing the highway to accommodate the design hourly volume (D.H.V.)
B)basic capacity or a higher value determined for use in designing the highway to accommodate the D.H.V.
C)practical capacity or smaller value determined for use in designing the highway to accommodate the average daily traffic (A.D.T.)
D)basic capacity or a higher value determined for use in designing the highway to accommodate the A.D.T.