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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'LABORATORY TECHNICAL ASSISTANT MAINTENANCE AND OPERATION OF MARINE ENGINES VHSE' And exam conducted in the year 2015. And Question paper code was '016/2015'. 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.
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In large high power marine engines a cross head is used to connect :
(வி Piston to piston rod (B) Piston rod to connecting rod
(0 Cylinder head to engine frame (D) Connecting rod to crank shaft
The ratio of brake horse power to indicated horse power is called :
(ಗಿ) Volumetric efficiency (B) Thermal efficiency
(C) Power efficiency (D) Mechanical efficiency
The tendency of a force to rotate an object about an axis is called :
८) r.p.m. (18) Centrifugal force
(0) Torque (D) Horse power
The actual power developed inside the cylinder is called :
(A) brake power (B) indicated power
(C) shaft power (D) rated power
Reversible engines are commonly used in :
(ಯ) large marine vessels (B) air plane propulsion systems
(C) automobiles (1)) none of the above
In a transmission gear box, the number of tecth in the driving gear is 38. To rotate the
output shaft at half of the rpm of driving shaft, the number of teeth required in the driven
gearis:
(५) 19 08) 38
(0) 78 (D) 152
The bearing to support the propeller shaft is :
(ക) Plummer block (B) Main bearing
)0 Bigend bearing (10) Thrust bearing
Select the fuel with highest L.C.V. (lower calorifie value) from the options :
(ക ஸல (18) Diesel
(0 LN.G. 8 (D) Kerosene
Autoignition temperature of a substance قط قا lowest temperature at which it will
spontaneously ignite in normal atmosphere without an external source of ignition. Among
the commonly used fuels,———— has the lowest autoignition temperature.
(A) Kerosene (B) ரஸல்
)© ലാല് ) oil
5 16/2015
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