34. पा reaction turbine water entering the runner ‏مجر‎

(८५) pressure energy only

(B) kinetic eney

ay only
(C) pressure energy as well as 1170110 encryy

(0) None of the above

45. - Fluid flow is called subsonic if Mach Number is
(^) काट जा जाल (B) 1655 पाणा ೧೧೮
(೧) ल्प्य 10 one (D) none of the ahove
५
46. A fast centrifugal pump impeller will have
(A) backward facing blades (8) forward facing blades
(0) ‏4ہ‎

I blades (D) propeller type blades

Saving of work done யாயி power by fitting an air vessel to double

(8) 08.8%
(ಐ) 39.2%

acting pump is of the order of
| (५) 84.8%

(€) 4५.2५

For laminar flow through a cir
(A)

cular pipe the shear stress
remains constant over the cross-section

(8) varies parabolically with radial distance
(€) must be zero at all points

യു varies lincarly with the radial distance

49. Which onc of the following
(A) 1

(€) ४१८ pump (D)

ന not a positive displacement pump ?

iprocating pump (B) Centrifugal

mp
Lobe pump
50. Negative slip

0೦೦/5 in reciprocating pumps when delivery pipe is

‎pipe is short and pump is running at low specd‏ و ورس لها
‎long and suction pipe is short and pump is ന at high speed‏ )3(
‎ര‏

‎short and suction pipe is long and pump is runni

‎

‎at low speed
(D) short and suction pipe is long

‎and pump is rimning at high specd

‎5 093/2017 8

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