Kerala PSC Previous Years Question Paper & Answer
Page:12
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Lecturer in Mechanical Engineering ' And exam conducted in the year 2023. And Question paper code was '129/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
71. Multi- stage centrifugal pump is used :
(A) high discharge (B) high speed
(C) high head (D) high efficiency
72. Impulse turbine is generally fitted :
(A) _ little above tail race
(B) same level of tail race
(C) _ slightly below tail race
(D) about 2.5 meters below the tail race
73. Which of the following about Poisson ratio is / are correct?
(1) Applicable with in elastic limit
(2) Ratio of lateral stress by longitudinal strain
(3) Ratio of lateral strain by longitudinal strain
(4) Ratio of longitudinal strain by lateral strain
(A) _ only (1) and (2) (B) _ only (1) and (3)
(0) only (2) and (8) (D) 0017 (3) ೩೧೮ (4)
74. If Poissons ratio of material is 0.5 then elastic modulus of material is —---——— the shear
modulus.
(^) equal to (B) two times
(C) three times (D) four times
75. Match the list :
In the cone of friction
List I List II
(a) Axis of cone (1) Limiting factor of friction
(b) Generator of cone (2) Normal reaction
(c) Base radius of cone (3) Resultant force
@ 0) ©
ಉ 1 2 3
(छ) 1 3 2
© 2 3 1
(D 3 2 1
129/2023 14 A