Search
.Management Sciences
Category: Hydraulics and Fluid Mechanics
Alcohol is used in manometers because_____________________?
A. it has low vapour pressure
B. it is clearly visible
C. it has low surface tension
D. it can provide longer column due to low density
E. is provides suitable meniscus
Liquids transmit pressure equally in all the directions. This is according to_________________?
A. Boyle’s law
B. Archimedes principle
C. Pascal’s law
D. Newton’s formula
E. Chezy’s equation
An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is___________________?
A. 10m/sec2
B. 9.81 m/sec2
C. 10.2/m sec
D. 9.75 m/sec2
E. 9 m/sec .
Flow occurring in a pipeline when a valve is being opened is ______________________?
A. steady
B. unsteady
C. laminar
D. vortex
E. rotational
The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to____________________?
A. Buoyancy
B. Equilibrium of a floating body
C. Archimedes’ principle
D. Bernoulli’s theorem
E. Metacentric principle
Surface tension has the units of____________________?
A. newtons/m
B. newtons/m
C. new tons/m
D. newtons
E. newton m
A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?
A. 0.5
B. 0.4
C. 0.515
D. 0.5
E. none of the above
The bulk modulus of elasticity __________________?
A. has the dimensions of 1/pressure
B. increases with pressure
C. is large when fluid is more compressible
D. is independent of pressure and viscosity
E. is directly proportional to flow.
A fluid is said to be ideal, if it is________________?
A. incompressible
B. inviscous
C. viscous and incompressible
D. inviscous and compressible
E. inviscous and incompressible
The vapour pressure over the concave surface is________________?
A. less man the vapour pressure over the plane surface
B. equal to the vapour pressure over the plane surface
C. greater than the vapour pressure over the plane surface
D. zero
E. none of the above
Recent Comments