34.

35.

86.

87.

88.

89.

40.

41-

“Whenever a body is immersed fully or partially in a fluid, the resultant force acting on it is
equal to the difference between the upward pressure of the fluid on its bottom and the
downward force due to gravity”. This is known as :

(A) DPascal’s law (B) Archimedes principle
(C) Newton’s law : (D) Bernoulli's theorem

For a perfect incompressible liquid flowing in continuous stream, the total energy of a
particle remains same, while particle moves from position to the other. This statement is

known as :
(4) Bernoulli’s principle (B) Newton’s principle
(C) Pascal’s law (D) Archimedes principle

17 17 and V, be the velocities at initial and final sections respectively, then the loss of head
due to sudden enlargement in pipe can be determined by :

(८) (छ - ८) (धट © (४ - :)2/&
© (° - प) () (५ -102)2/28

Absolute pressure is the algebraic sum of :
(4) Atmospheric pressure and vaccum pressure
(B) Gauge pressure and vaccum pressure
(C) Atmospheric pressure and gauge pressure
(D) None of the above

The Darcy-Weisbach equation for loss of head can be expressed mathematically :
‏له‎ hf =(4fol*)/2¢d () = (4/7०*)/28४
(00. हा न (बीए )/ 285 (D) None of the above

For a pipe flow, the ratio of inertia force to viscous force is given by :
(4) Mach number (3) Prandl number
)0 Weber number (D) Reynolds number

The head against a centrifugal pump has to work is known as :
(4) Manometric head (B) Friction head
(C) Barometric head (D) Pressure head

Slip is a term associated with :
(ക Centrifugal pump ൫) Submersible pump
(C) Reciprocating pump (D) Jet pump

7 "128/2015
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