A. its vapour pressure is low
B. it provides suitable meniscus for the inclined tube
C. its density is less
D. it provides longer length for a given pressure difference
E. it provides accurate readings
Related Mcqs:
- 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.
E. it moves easily - Manometer is used to measure__________________?
A. pressure in pipes, channels etc
B. atmospheric pressure
C. very low pressure
D. difference of pressure between two points
E. velocity - In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 9. Sensitivity of inclined tube to sensitivity of U-tube is equal to________________?
A. sin 9
B. sin 9
C. cas 9
D. cos 9
E. tan 9 - 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
E. displacement type - For manometer, a better liquid combination is one having ___________________?
A. higher surface tension
B. lower surface tension
C. surface tension is no criterion
D. high density and viscosity
E. low density and viscosity - 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 - In a static fluid ___________________?
A. resistance to shear stress is small
B. fluid pressure is zero
C. linear deformation is small
D. only normal stresses can exist
E. viscosity is nil - The property by virtue of which a liquid opposes relative motion between its different layers is called_________________?
A. surface tension
B. co-efficient of viscosity
C. viscosity
D. osmosis
E. cohesion - Flow of water in a pipe about 3 metres in diameter can be measured by__________________?
A. orifice plate
B. venturi
C. rotameter
D. pitot tube
E. nozzle - In a free vortex motion, the radial component of velocity everywhere is________________?
A. maximum
B. minimum
C. zero
D. non-zero and finite
E. unpredictable
