A. very low pressure
B. atmospheric pressures
C. medium pressures
D. very high pressures
E. none of the above
Related Mcqs:
- Maximum energy loss in a boiler occurs due to _______________________?
A. unburnt carbon in ash
B. incomplete combustion
C. ash content
D. flue gases
E. radiation losses - The economizer is used in boilers to _______________________?
A. increase thermal efficiency of boiler
B. economise on fuel
C. extract heat from the exhaust flue gases
D. increase flue gas temperature
E. to heat feed water by bled steam - Water and sediment in fuel oil can be removed by _______________________?
A. heating the oil in the settling tanks
B. cooling the oil in the settling tanks
C. burning the oil
D. suspension
E. filtering - Calorific value of coal is of the order of _______________________?
A. 200-400 kcal/kg
B. 800-1200 kcal/kg
C. 2000-4000 kcal/kg
D. 5000-8000 kcal/kg
E. 8000-10,000 kcal/kg - The maximum discharge through a chimney occurs when the height of chimney is_____________________?
A. infinitely long
B. around 200 meters
C. equal to the height of the hot gas column producing draught
D. outside temperature is very low
E. more than the tallest building nearby - Non uniform flow occurs when_________________?
A. the direction and magnitude of the velocity at all points are identical
B. the velocity of successive fluid particles, at any point, is the same at successive periods of time
C. the magnitude aricf 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 - Uniform flow occurs when ___________________?
A. the flow is steady
B. the flow is streamline
C. size and shape of the cross section in a particular length remain constant
D. size and cross section change uniformly along length
E. flow occurs at constant fate - Uniform flow occurs when_____________________?
A. the direction and magnitude of the velocity at all points are identical
B. the velocity of successive fluid paiticles, at any point, is the same at successive 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 pleasure
E. velocity, depth, pressure, etc. change from point to point in the fluid flow - Two dimensional flow occurs when________________?
A. the direction and magnitude of the velocity at all points are identical
B. the velocity of successive fluid particles, at any point, is the same at successive 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 - 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
