Mechanical Engineering Questions And Answers :: Hydraulic And Fluid Machines: part8



Mechanical Engineering : Hydraulic And Fluid Machines QUESTIONS AND ANSWERS :: part8 : 1 to 5

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

1.A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?

0.5
0.4
0.515
0.5
none of the above.

2.For pipes, laminar flow occurs when Roynolds number is

less than 2000
between 2000 and 4000
more than 4000
less than 4000
none of the above.

3.The upper surface of a weir over which water flows is known is

crest
nappe
sill
weir top
contracta.

4.According to Bernoulli's equation for steady ideal fluid flow

principle of conservation of mass holds
velocity and pressure are inversely proportional
total energy is constant throughout
the energy is constant along a stream-line but may vary across streamlines
none of the above.

5.The equation of continuity holds good when the flow

is steady
is one dimensional
velocity is uniform at all the cross sec-tions
all of the above
none of the above.

More Hydraulic And Fluid Machines QUESTIONS AND ANSWERS available in next pages

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