Which of the following is not the unit of energy ____ ?
A. wattr
B. watt hours
C. kg m
D. kcal
Strength of Materials
Basic strength of materials MCQs for civil engineering students.
C.G. of a solid hemisphere lies on the central radius 3r _____ ?
A. at distance — from the plane base 3r
B. at distance — from the plane base or
C. at distance — from the plane base 3r
D. All of them
The C.G. of a right circular solid cone of height h lies at the following distance from the base _____ ?
A. J/3
B. h/4
C. h/6
D. 3/i/5
Which of the following is the example of lever of first order ___ ?
A. pair of clinical tongs
B. arm of man
C. pair of scissors
D. All of them
In actual machines ____ ?
A. mechanical advantage is less than velocity ratio
B. mechanical advantage is unity
C. mechanical advantage is greater than velocity ratio
D. mechanical advantage is equal to velocity ratio
In ideal machines ___ ?
A. mechanical advantage is less than velocity ratio
B. mechanical advantage is greater than velocity ratio
C. mechanical advantage is equal to velocity ratio
D. All of them
Angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of ____ ?
A. limiting friction
B. kinematic friction
C. friction
D. repose
A pair of smith’s tongs is an example of the lever of _____ ?
A. second order
B. third order
C. zeioth order
D. first order
A projectile is fired at an angle 9 to the vertical. Its horizontal range will be maximum when 9 is _____ ?
A. 0°
B. 30°
C. 90°
D. 45°
Coulomb friction is the friction between ___ ?
A. . two lubricated surfaces
B. solids and liquids
C. bodies having relative motion
D. two dry surfaces