Kerala PSC Previous Years Question Paper & Answer
Page:6
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Materials Manager' And exam conducted in the year 2023. And Question paper code was '163/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
B:-Static pressure and stagnation pressure
C:-Dynamic pressure and stagnation pressure
D:-Static pressure only
Correct Answer:- Option-B
Question26:-A jet of water 60 mm diameter and velocity 20 m/s strikes a
symmetrically curved fixed vane at the centre. After impingement the jet gets
deflected through 1502 by the vane. Find the force excited by the jet on the vane if
the surface of the vane is smooth
A:-2110 N
B:-1605 N
C:--151 N
D:--979 N
Correct Answer:- Option-A
Question27:-A Pelton wheel is designed to operate under a head of 625 m and
develop 6 MW while running at 200 rpm. The unit speed of the turbine is
A:-4898
B:-8
C:-0.32
D:-0.57
Correct Answer:- Option-B
Question28:-Following are different statements related to draft tube. Which among
them is/are correct?
(i) It decreases the pressure at the runner exit to a value less than atmosphere
pressure
(ii) It recovers a portion of exit kinetic energy to tail race
(iii) It increases the pressure at the runner exit to prevent recirculation
(iv) It does not recover any portion of exit kinetic energy
A:-Only (i)
B:-Both (i) and (ii)
C:-Only (iii)
D:-Both (iii) and (iv)
Correct Answer:- Option-B
Question29:-A centrifugal pump is designed to discharge 0.253 /s against a head of
16 m while running at 900 rpm. The specific speed of the pump is
A:-112.5
B:-28.12
C:-14.06
D:-56.25
Correct Answer:- Option-D