The order in which a road is built is

 

(A) sub-soil, sub-grade, sub-base, base

 

(B) sub-base, base, sub-grade, sub-soil

 

(C) sub-soil, base, sub-grade, sub-base

 

(D) base, sub-soil, sub-grade, sub-soil

Recommended right of way for highways in open areas is

(A) 30 m

(B) 40 m

(C) 45 m

(D) 60 m

Transition curves are required to

(A) improve aesthetic appearance of the road

(B) enable driver to turns steering gradually

(C) enable gradual introduction of superelevation

(D) all the above

IRC recommends spacing between two consecutive expansion joints should not be more than

(A) 90 m

(B) 110 m

(C) 120 m

(D) 140 m

A basic requirement of intersection at grade is

(A) the relative speed should be high

(B) the area of conflict should be small

(C) it should clearly guide the driver

(D) the relative angle of approach should be high

When bituminous surfacing is done on already existing black road the type of treatment to be given is

(A) apply seal coat

(B) tack coat

(C) prime coat

(D) spraying emulsion

A pavement is classified as flexible or rigid based on its

(A) base

(B) wearing course

(C) sub-grade

(D) sub-base

To overtake a vehicle going at 40 kmph on two lane highway OSD is

(A) 150 m

(B) 165 m

(C) 200 m

(D) 250 m

The factor influencing camber is

(A) amount of rainfall

(B) nature of subsoil

(C) type of wearing coat provided

(D) topography of the area

A heavy ladder resting on a floor and against a

(A) floor and wall both are smooth surfaces

(B) floor and wall both are rough surfaces

(C) floor is smooth and the wall is rough

(D) floor is rough and the wall is smooth

The velocity of a moving body is

(A) a constant quantity

(B) a scalar quantity

(C) a vector quantity

(D) none of these