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

Periodic time of body moving with simple harmonic motion is

(A) inversely proportional to its angular velocity

(B) inversely proportional to the square of its angular velocity

(C) directly proportional to the square of its angular velocity

(D) directly proportional to its angular velocity

A rigid body suspended vertically at a point and oscillating with a small amplitude under the action of the force of gravity is called

(A) second's pendulum

(B) simple pendulum

(C) compounder pendulum

(D) none of these

Newton's law of motion of rotation which states, Everybody continues in its state of rest or uniform motion of rotation about an axis unless it is acted upon by some external torque is

(A) first law of motion

(B) second law of motion

(C) third law of motion

(D) fourth law of motion

The tension in a cable supporting a lift

(A) is more when the lift is moving downwards

(B) is less when the lift is moving downwards

(C) is less when the lift is moving upwards

(D) remains constant whether it moves downwards or upwards

According to Kennedy's theorem, if three bodies have plane motion, their instantaneous centres lie on

(A) a triangle

(B) two straight lines

(C) a straight line

(D) a point