Civil Engineering MCQs

2965 MCQs  (Page 88 of 297)

Angle oT friction is the___________________?
A. Angle between normal reaction and the resultant of normal reaction and the limiting friction
B. Ratio of limiting friction and normal reaction
C. The ratio of minimum friction force to the friction force acting when the body is just about to move
D. The ratio of minimum friction force to friction force acting when the body is in motion
Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction__________________?
A. Along the plane
B. Horizontally
C. Vertically
D. At an angle equal to the angle of friction to the inclined plane
Which one of the following statements is not correct_________________?
A. The tangent of the angle of friction is equal to coefficient of friction
B. The angle of repose is equal to angle of friction
C. The tangent of the angle of repose is equal to coefficient of friction
D. The sine of the angle of repose is equal to coefficient to friction
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be__________________?
A. Downwards at its upper end
B. Upwards at its upper end
C. Perpendicular to the wall at its upper end
D. Zero at its upper end
Coefficient of friction is the__________________?
A. Angle between normal reaction and the resultant of normal reaction and the limiting friction
B. Ratio of limiting friction and normal reaction
C. The friction force acting when the body is just about to move
D. The friction force acting when the body is in motion
If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella_________________?
A. More inclined when moving
B. Less inclined when moving
C. More inclined when standing
D. Less inclined when standing