Civil Engineering MCQs

2965 MCQs  (Page 90 of 297)

In ideal machines________________?
A. Mechanical advantage is greater than velocity ratio
B. Mechanical advantage is equal to velocity ratio
C. Mechanical advantage is less than velocity ratio
D. Mechanical advantage is unity
In actual machines______________?
A. Mechanical advantage is greater than velocity ratio
B. Mechanical advantage is equal to velocity ratio
C. Mechanical advantage is less than velocity ratio
D. Mechanical advantage is unity
Which of the following is the example of lever of first order________________?
A. Arm of MAN
B. Pair of scissors
C. Pair of clinical tongs
D. All of the above
The 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 3r
C. At distance — from the plane base 3r
D. At distance — from the plane base or
A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal________________?
A. Density of metal can’t be determined
B. Metal is twice as dense as water
C. Metal will float in water
D. Metal is twice as dense as unknown fluid