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
Related Mcqs:
- Alcohol is used in manometer, because____________________?
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 - A balloon lifting in air follows the following principle_____________________?
A. law of gravitation
B. Archimedes principle
C. principle of buoyancy
D. all of the above
E. continuity equation - If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its__________________?
A. specific weight
B. specific mass
C. specific gravity
D. specific density
E. none of the above - 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 - Ratio of inertia force to surface Jension is known as ___________________?
A. Mach number
B. Froude number
C. Reynold’s number
D. Weber’s number
E. none of the above - A streamline is defined as the line________________?
A. parallel to central axis flow
B. parallel to outer surface of pipe
C. of equal yelocity in a flow
D. along which the pressure drop is uniform
E. which occurs in all flows - For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal____________________?
A. ratio of inertial force to force due to viscosity
B. ratio of inertial force to force due to gravitation
C. ratio of inertial force to force due to surface tension
D. all the four ratios of inertial force to force due to viscosity, gravitation, sur-face tension, and elasticity - True one-dimensional flow occurs when_________________?
A. the direction and magnitude of the veiocity at all points are identical
B. the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
C. the magnitude and direction of the velocity do not change from point to point in the fluid
D. the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
E. velocity, depth, pressure etc. change from point to point in the fluid flow - For a body floating in a liquid the normal pressure exerted by the liquid acts at ____________________?
A. bottom surface of the body
B. e.g. of the body
C. metacentre
D. all points on the surface of the body
E. all of the above - To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than____________________?
A. 2.4 m above the hydraulic gradient
B. 6.4 m above the hydraulic gradient
C. 10.0 m above the hydraulic gradient
D. 5.0 above the hydraulic gradient
E. none of the above
