Mechanic Recruitment Exam Question Paper with Answer pdf
The Question Paper with Answer in pdf/jpeg Text format of Mechanic Recruitment Exam conducted by Kerala PSc to appoint in Agriculture Development and Farmers Welfare Department is Published here
Department:Â Agriculture Development and Farmers Welfare
Date of Test06-01-2023
Question1:-What is the working cycle of compression ignition engine? A:-Otto Cycle B:-Sterling Cycle C:-Diesel Cycle D:-Rankin Cycle Correct Answer:- Option-C
Question2:-The portion below the piston pin boss is called A:-Crown of the Piston B:-Skirt of the Piston C:-Land of the Piston D:-Ring Section of the Piston Correct Answer:- Option-B
Question3:-In a rear wheel drive vehicle if the rear wheels move up and down then A:-the angle of drive changes B:-the drive line changes length C:-both (1) and (2) D:-neither (1) nor (2) Correct Answer:- Option-C
Question4:-Which part is not common between the old model Petrol and Diesel engines? A:-Air cleaner B:-Battery C:-Exhaust Silencer D:-Fuel injector Correct Answer:- Option-D
Question5:-Which sensor is used to sense vibrations? A:-Engine Knocking Sensor B:-Air Vertex Sensor C:-Hall Effect Sensor D:-Vehicle Speed Sensor Correct Answer:- Option-A
Question6:-A clutch is usually designed to transmit maximum torque which is A:-Equal to the maximum engine torque B:-150 percentage of the maximum engine torque C:-75 percentage of the maximum engine torque D:-None of the above Correct Answer:- Option-B
Question7:-Which type of gear will not produce axial thrust while transmitting torque A:-Spur gear B:-Helical gear C:-Worm gear D:-Spur bevel gear Correct Answer:- Option-A
Question8:-Clutch facings are usually attached to the plate by A:-Steel Rivets B:-Steel screws C:-Aluminium screws D:-Brass rivets Correct Answer:- Option-D
Question9:-What will be cause by which noise comes from a gearbox in neutral position? A:-Synchronizing unit stuck B:-Synchronizer worn-out C:-Bearing worn out or dry D:-Defective gear shift mechanism Correct Answer:- Option-C
Question10:-What is the load taken by a taper roller bearing? A:-Radial Load B:-Axial and Radial Load C:-Thrust Load D:-Non thrust Load Correct Answer:- Option-B
Question11:-The efficiency of hydraulic braking system is A:-40-50% B:-50-60% C:-60-70% D:-About 90% Correct Answer:- Option-D
Question12:-If proportioning valve is not working A:-Front brakes may lock B:-Rear brakes may lock C:-Front brakesmay drag D:-Rear brakes may drag Correct Answer:- Option-A
Question13:-What is the main cause for wear on one side of tyre? A:-Over inflation B:-Under inflation C:-Improper camber D:-Improper caster Correct Answer:- Option-C
Question14:-Disc brakes self-adjust when the lining wear allows the piston to A:-Contact the disc B:-Slide outward through the seal C:-Cause seal deflection D:-Reposition the seal groove in the caliper Correct Answer:- Option-B
Question15:-What causes ”Air suction” in pump of hydraulic power steering system? A:-Noise B:-Low pressure C:-High fluid level D:-Steering wheel play Correct Answer:- Option-A Question16:-What is the compression ratio of an engine, its clearance volume is 10 c.c. and swept volume is 90 c.c?
A:-8 : 1 B:-9 : 1 C:-10 : 1 D:-11 : 1 Correct Answer:- Option-C Question17:-In a six cylinder engine, the power impulse occurs after ‘x’ degrees of crank shaft rotation. Where ‘x’ is A:-360 B:-240 C:-120 D:-90 Correct Answer:- Option-C Question18:-In a Diesel fuel injection pump, the effective pressure strokes of the plungers are regulated by means of a A:-Fuel pump B:-Control rack C:-Needle valve D:-Cam shaft Correct Answer:- Option-B
Question19:-A dish in the piston head is employed to A:-Decrease piston weight B:-Provide valve clearance C:-Adjust piston displacement D:-Control compression ratio Correct Answer:- Option-D Question20:-Which tool is used for removing the piston rings from a piston? A:-Piston ring expander B:-Piston ring compressor C:-Piston ring lifter D:-Piston ring squeezer Correct Answer:- Option-A
Question21:-Valve overlap is the number of degrees of crankshaft rotation during which A:-the values are moving from fully closed to the timing point B:-both intake and exhaust valves are closed C:-both intake and exhaust valves are open D:-the valve float Correct Answer:- Option-C Question22:-What is the effect if thermostat valve is stuck in closed position? A:-Engine gets over cooling B:-Engine gets over heating C:-Engine does not start D:-Engine does not stop Correct Answer:- Option-B Question23:-What is the reason if oil pump does not suck the oil? A:-Filter clogged B:-Relief valve struck C:-More backlash D:-Less radial clearance Correct Answer:- Option-C Question24:-Percentage of fuel energy lost to the cylinder walls in an automobile engine is approximately
A:-1 percent B:-10 percent C:-80 percent D:-25 percent Correct Answer:- Option-D Question25:-The impeller type exhauster has A:-One spindle B:-Two spindle C:-Three spindle D:-No spindle Correct Answer:- Option-A Question26:-Which are the materials commonly used in the catalytic converter? A:-Chromium and vanadium B:-Zinc and molybdenum C:-Asbestos and ceramics D:-Palladium and platinum Correct Answer:- Option-D Question27:-The basic difference between the supercharger and the turbocharger is in A:-the way they are driven B:-the size of the unit C:-the number of waste gates D:-the pressure they produce Correct Answer:- Option-A Question28:-The fuel injection timing in a distributor type pump is controlled by A:-changing plunger stroke B:-changing speed of rotor C:-rotating the cam ring D:-changing the number of cams on the ring Correct Answer:- Option-C
Question29:-Which action the spindle only move up and down in feedpump? A:-Idling action B:- Partial action C:-Normal action D:-Pumping action Correct Answer:- Option-A Question30:-The information provided by the Oxygen sensor to the feed back control system is about the A:-Air flow speed B:-Air temperature C:-Exhaust gas volume D:-Air fuel ratio Correct Answer:- Option-D Question31:-What is the cause for tractor pulls to one side during normal driving? A:-Wheels tracking B:-Loose wheel bearing C:-Friction in ball joint D:-Uneven tyre pressure Correct Answer:- Option-D Question32:-Which type of synchromesh gearbox will produce torque more than three times of other type? A:-Multi and double cone
B:-Porsche type C:-Baulktype D:-Baulk ring type Correct Answer:- Option-A Question33:-Which is the manually operated seed drill? A:-Cell wheel precision seeder B:-Centrifugal seed drill C:-Pneumatic seed drill D:-Hand seed drill Correct Answer:- Option-D Question34:-In tractor bull gear is the component of A:-Engine timing gear B:-Gear box C:-PTO D:-Final drive Correct Answer:- Option-D Question35:-In tractors, the function of three-point linkage is to A:-Balance the load B:-Hitch the implement C:-Lift the load D:-Carry the load Correct Answer:- Option-B Question36:-In tractor ‘ram cylinder’ is the A:-Brake cylinder B:-Fluid cylinder C:-Hydraulic cylinder D:-PTO Correct Answer:- Option-C Question37:-As per ASAE standard, the diameter of the PTO shaft is A:-34.9 cm with 6 splines B:-3.49 cm with 6 splines C:-34.9 cm with 21 splines D:-3.49 cm with 4 splines Correct Answer:- Option-B Question38:-Which type of gear will produce clicking noise during teeth contact? A:-Spur gear B:-Worm gear C:-Helical gear D:-Bevel gear Correct Answer:- Option-A
Question39:-What causes noisy gear box in neural position? A:-Synchroniser worn out B:-Bearing worn out or dry C:-Synchronising unit struck D:-Synchronizer defective Correct Answer:- Option-B Question40:-What is aspect ratio in the tyre structure? A:-Percentage ratio of tyre height to rim width B:-Ratio between tyre height to tyre diameter C:-Percentage ratio of tyre height to tyre width
D:-Ratio between tyre width to rim width Correct Answer:- Option-C Question41:-Which part of tyre referred as crown? A:-Thread radius B:-Thread width C:-Tyre width D:-Rim width Correct Answer:- Option-A Question42:-What causes air suction in pump of hydraulic power steering system? A:-High fluid level B:-Low pressure C:-Steering wheel ply D:-Noise Correct Answer:- Option-D Question43:-What is the material constituent of semi-metallic brake lining? A:-Aluminium oxide B:-Carbon composite C:-Carbon fibre D:-Fine polished steel wool Correct Answer:- Option-D Question44:-What is the cause of low voltage output from alternator? A:-Faulty regulator B:-Worn out bearing C:-Loose drive pulley D:-Loose mounting Correct Answer:- Option-A
Question45:-In power tiller which type of tilling method is used to wet-soft paddy field? A:-Circular travel tilling method B:-Continuous tilling method C:-Alternate tilling method D:-Return tilling method Correct Answer:- Option-C Question46:-Which ploughing method saves fuel and time? A:-Gathering method B:-Casting method C:-Hiching method D:-Mixed method Correct Answer:- Option-D Question47:-What is the purpose of cultivator? A:-Deep cultivation B:-Tilling the soil between row crops C:-Primary tillage operation D:-Secondary tillage operation Correct Answer:- Option-B Question48:-What is the use of harrows? A:-After seed bed preparation B:-Deep cultivation C:-Penetrating hard ground D:-Seed bed preparation before planting Correct Answer:- Option-D
Question49:-Which type of agriculture implement used for incorporating straw and green manure in the field? A:-Subsoiler B:-Cultivator C:-Rotavator D:-Harrow Correct Answer:- Option-C Question50:-What is the cause for abnormal clutch lining wear? A:-Excessive pedal free play B:-Dry release bearing C:-Warped pressure plate D:-Oil in the clutch lining Correct Answer:- Option-C
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