Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'LECTURER IN MACHANICAL ENGINEERING POLYTECHNICS TECHNICAL EDUCATION' And exam conducted in the year 2014. And Question paper code was '003/2014'. 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.
'3/2014
Maximum : 100 marks
Time : 1 hour and 15 minutes
For a viscous flow, the relation between the coefficient of friction f and Reynolds nunber Re
is:
(ಯ) (764/0 (೫) f=16/Re
(0) f=8Re 0) £= 4/९
For flow through pipes, the maximum transmission efficiency that can achieve is :
ക) 100% (8) 80%
(0) 40% ©
The unit of Chezy's constant C in the Chezy’s formula is :
(ல) None (08) ೫/8
(0) ங் യു ബട
The ratio of the pitch diameter of Pelton wheel to the diameter of the jet is called :
(A) Jet ratio (B) Speed ratio
(C) Wheel ratio (D) None of the above
The hydraulic efficiency of a turbine with mean एषः diameter 1 m and running at
1000 rpm with net head 700 m when the side clearance angle is 15 degree and discharge of
100 liters/s is :
ശു 60% (0) 70%
(८) 55% യു 97%
The specific speed of a Francis turbine which develops 7225 kW power under a head of 25
meters at 135 r.p.m is:
(4) 150 ൫) 180
(©) 195 | (D) 205
The head loss due to friction for the flow of water through penstocks can be minimized by :
(ಗಿ) Decreasing the dinmeter of penstock (7) Increasing the diameter of penstock
(C) Increasing the length of penstock യ) Increasing the velocity of flow
[P.T.0.]
