441. One dimensional flow implies
Flow in a straight line
Steady uniform flow
Unsteady uniform flow
A flow which does not account for changes in transverse direction
✅ The correct answer is option D.
Fluid Mechanics MCQs
442. Venturimeters, orificemeters and nozzles are used to measure the fluid discharge from a pipeline. The average fluid velocity in a pipeline can be measured by a/an
Weir
Hot wire anemometer
Cup and vane aneometer
None of these
✅ The correct answer is option B.
443. Open channel liquid flow is most conveniently measured by a
Hot wire anemometer
Notch
Rotameter
Segmental orifice
✅ The correct answer is option B.
444. Paper pulp is an example of __________ fluid.
Dilatant
Bingham plastic
Newtonion
Pseudoplastic
✅ The correct answer is option B.
445. A venturimeter can not be used for the direct measurement of
Datum difference in the stretch of pipeflow
Pressure difference in the flow throughpipeline
Friction loss in pipe flow
All of the above
✅ The correct answer is option D.
446. A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be __________ cms.
17
42
84
1.8
✅ The correct answer is option A.
447. Which of the following has the maximum compression ratio?
Blower
Compressor
Vacuum pump
Fan
✅ The correct answer is option C.
448. The equation given below is called the __________ . f-0.5 = 4.07 loge (NRe√f)-0.6
Colebrook formula
Von-Karman equation
Fanning equation
None of these
✅ The correct answer is option B.
449. Venturimeter and orificemeter measures the __________ of the fluid.
Pressure
Maximum velocity
Average velocity
Point velocity
✅ The correct answer is option C.
450. Reciprocating pumps are not able to compete with the centrifugal pump for industrial use, mainly because these pumps have
Very low speeds
Smaller discharge
Higher capital &maintenance cost
High vibrations
✅ The correct answer is option C.