Which of the following manometer has highest sensitivity :
A. U-tube with water
B. inclined U-tube
C. U-tube with mercury
D. micro-manometer with water
Euler’s dimensionless number relates the following :
A. inertial force and gravity
B. viscous force and inertial force
C. viscous force and buoyancy force
D. pressure force and inertial force
Dynamic viscosity of most of the gases with rise in temperature :
A. increases
B. decreases
C. remains unaffected
D. unpredictable
The speed of sound in a ideal gas varies directly as its :
A. pressure
B. temperature
C. density
D. absolute temperature
Dynamic viscosity of most of the liquids with rise in temperature :
A. increases
B. decreases
A. remains unaffected
D. unpredictable
E. none of the above
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea :
A. Venturimeter
B. Orifice plate
C. hot wire anemometer
D. rotameter
E. pitot tube
Which of the following manometer has highest sensitivity :
A. U-tube with water
B. inclined U-tube
C. U-tube with mercury
D. micro-manometer with water
Dynamic viscosity of most of the gases with rise in temperature :
A. increases
B. decreases
C. remains unaffected
D. unpredictable
Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem :
A. all of the above
B. Orifice plate
C. nozzle
D. pitot tube
The speed of sound in a ideal gas varies directly as its :
A. Absolute temperature
B. temperature
C. density
D. modulus of elasticity
