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A centrifugal pump is operated through a V belt drive by a 3 phase induction motor. Pump

efficiency is 50 %, transmission loss is 10 % and motor efficiency is 80 %. Electrical power
nceded to operate the pump when producing 3.6 kW hydraulic power output is :

வ கண ര 728೫
)© 10kW @) ‏۷۴ھ‎
‎Pressure inside the Pelton wheel turbine casing is
(4) less than atmospheric (B) atmospheric
(C) greater than atmospheric (D) the penstock pressure

Maximum deflection of a cantilever beam with point load P’ at free end is :

வ (01,1/(381 ೩6 ೫೫೦6 ೧೧6 (B) (71/1)/(381) ೩! ೧೯೧೧ ೧೧.
(€) (01,)/(881) 8£ पिष्ट लाव (D) (दद्म) 9 free end
Simple theory of elastic bending (with usual notations) is :
(ಗಿ) MI=f/Y=ER (8) MI=Y/f=ER
(¢ 1/2 = 1 = ‰/£ (D) 124 = 1/१ =
During bending of an elastic- material, the neutral axis passes through
(4) Bottom most layer of section (B) Top most layer of section
(C) Centroid of the section (D) None of the above
Area moment of inertia of a square cross section with side Bis :
(4) [85] ட வட
© (81/8 യ வடி
Ratio of stress to strain is :
(ಗಿ) % of strain (B) % of stress
(C) Poisson's ratio (D) Modulus of elasticity
Thread வறிய (H) of ISO screw thread is related to its pitch (P) by
(ಗ) प = 0.5007 (8) H=0960P
(८) प = 0.8667ए (D) H=1732P

Which of the following operations will produce the lowest surface roughness?
(५) Milling (B) Lapping
(9 Grinding (D) Reaming

78/2014 6 A