Civil Engineering MCQs

2965 MCQs  (Page 251 of 297)

Mercury is often used in barometer because _________________?
A. It is the best liquid
B. The height of barometer will be less
C. Its vapour pressure is so low that it may be neglected
D. Both b. and c.
A metal with specific gravity of o floating in a fluid of same specific gravity a will___________________?
A. Sink to bottom
B. Float over fluid
C. Partly immersed
D. Be fully immersed with top surface at fluid surface
The atmospheric pressure with rise in altitude decreases____________________?
A. Linearly
B. First slowly and then steeply
C. First steeply and then gradually
D. Unpredictable
Newton’s law of viscosity is a relationship between________________?
A. Shear stress anctthejiate of angular distortion
B. Shear stress and viscosity
C. Shear stress, velocity and viscosity
D. Pressure, velocity and viscosity