Diesel Engine components MCQ Question and Answer | ITI Mechanic Diesel

ITI Mechanic Diesel Trade Diesel Engine components MCQ Question and Answer for CBT Online exam for NCVT AITT (All India Trade Test).  Practice all Mechanic Diesel Trade MCQ (Multiple choice Question). Also you can practice mock test exam online

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ITI Mechanic Diesel | Diesel Engine components MCQ

1.

What is the material of cylinder block?

1. Cast iron
2. Bronze
3. Brass
4. Zinc alloy

2.

What is the name of the part marked as ‘x’?

1. Valve door cover
2. Cylinder head
3. Engine block
4. Oil pan

3.

What is the name of the part marked as ‘x’?

1. Valve door cover
2. Cylinder head
3. Engine block
4. Oil pan

4.

What is the name of the diagram?

1. Injection timing
2. Port timing
3. Valve timing
4. Ignition timing

5.

What is the name of the part marked as ‘x’?

1. Crank pin
2. Crank arm
3. Balancing weight
4. Main journal

6.

What is the name of the part marked as ‘X’?

1. Gudgeon pin
2. King pin
3. Connecting rod
4. Piston pin hole

7.

What is the material of piston pins?

1. Nickel chromium steel
2. Cast iron
3. HSS
4. Bronze

8.

What is the name of the part marked as ‘X’?

1. Drive product
2. Vibration damper
3. Fan pulley
4. Fly wheel

9.

What is the material used to produce crank shaft?

1. Chromium vanadium nickel steel
2. High speed steel
3. Cast iron
4. Wrought iron

10.

What is the name of the bearing?

1. Ball bearing
2. Roller bearing
3. Needle bearing
4. Tappet roller bearing

11.

What is the name of the bearing?

1. Ball bearing
2. Roller bearing
3. Needle bearing
4. Tapper roller bearing

12.

What is the name the portion below the piston boss?

1. Land of the piston
2. Ring section of the piston
3. Crown of the piston
4. Skirt of the piston

13.

Which part is connect the piston with crank pin?

1. Push rod
2. Connecting rod
3. Cam Shaft
4. Crank Shaft

14.

What is the name of part marked as ‘X’?

1. Alternator pully
2. Water pump pully
3. Crank shaft pully
4. Dynamo pully

15.

Which tool used to remove the crank shaft pully?

1. Double and spanner
2. Ring spanner
3. Pipe wrench
4. Puller

16.

What is the material of inlet valve?

1. Nickel steel alloy
2. Aluminium alloy
3. Copper alloy
4. Chromium alloy

17.

What is the nameof the valve mechanism?

1. Over head valve
2. Side head valve
3. Rotary valve
4. Reed valve

18.

What is the name of the part marked as ‘x’?

1. Cam lobe
2. Tappet
3. Valve seat
4. Rocker arm

19.

What is the name of the part marked as ‘x’?

1. Cam lobe
2. Tappet
3. Valve seat
4. Rocker arm

20.

What is the material of cam shaft?

1. Forged alloy steel
2. Copper alloy
3. Aluminium alloy
4. Zinc alloy

21.

What is the name of the drive?

1. Belt drive
2. Chain drive
3. Rope drive
4. Gear drive

22.

What is the name of the tool?

1. Torque wrench
2. Piston ring compressor
3. Piston ring expander
4. Circlip player

23.

Which measuring instrument used to check the fly wheel face out?

1. Dial indicator
2. Compression gauge
3. Outside micrometer
4. Feeler gauge

24.

What is the name of the tool?

1. Dial type torque wrench
2. Scale type torque wrench
3. Ratchet type torque wrench
4. Torsion has type torque wrench

25.

What is the name of the tool?

1. Torque wrench
2. Piston ring expander
3. Piston ring compressor
4. Circlip player

26.

Which instrument is used to check the leakage of the cylinder?

1. Compression gauge
2. Dial gauge
3. Vacuum gauge
4. Wire gauge

27.

Which instrument is used to check the tappet clearance?

1. Depth gauge
2. Pitch gauge
3. Feeler gauge
4. Wire gauge

28.

What is the measuring instrument used to find the diameter of piston

1. Inside micrometer
2. Depth micrometer
3. Outside micrometer
4. Three point internal micrometer

29.

Which tool is used to measure the diameter of the crank shaft main journal?

1. Inside micrometer
2. Outside micrometer
3. Three point internal micrometer
4. Master ring gauge

30.

Which is connected with piston through piston pin?

1. Gudgeon pin
2. Connecting rod
3. Cam shaft
4. Rocker arm

31.

Which is joining piston and connecting rod?

1. Gudgeon pin
2. Rocker arm
3. Cam shaft
4. King pin

32.

Which is transferring energy for the piston to crankshaft?

1. Gudgeon pin
2. King pin
3. Connecting rod
4. Cam shaft

33.

Which is the key element in converting reciprocating motion in to rotary motion?

1. Connecting rod
2. Gudgeon pin
3. King pin
4. Cam shaft

34.

What is the type of hardening done on crank shaft?

1. Induction hardening
2. Case hardening
3. Flame hardening
4. Surface hardening

35.

Which load taken by the roller bearing?

1. Radial load
2. Axial load
3. Thrust load
4. Radial and axial load

36.

What is the load taken by taper roller bearing?

1. Radial load
2. Axial load
3. Thrust load
4. Radial and axial load

37.

Which is the bearing used in differential and wheel of a heavy vehicles?

1. Ball bearing
2. Roller bearing
3. Needle bearing
4. Taper roller bearing

38.

Which bearing used in fly wheel and water pump?

1. Ball bearing
2. Roller bearing
3. Needle bearing
4. Taper roller bearing

39.

Which bearing used in gear boxes?

1. Ball bearing
2. Roller bearing
3. Needle bearing
4. Taper roller bearing

40.

Where the bush bearing prefered?

1. Connecting rods
2. Fly wheel and water pumps
3. Differential and wheel hub
4. Gear boxes

41.

What is the cause for double knok in the piston?

1. Piston wormout
2. Piston ring wormout
3. Piston pin and boss wormout
4. Liner wormout

42.

What type of bearing fitted in the connecting rod big end?

1. Needle bearing
2. Ball bearing
3. Taper roller bearing
4. Shell bearing

43.

Where the compression ring is fitted in the piston?

1. Above the oil ring in piston
2. Bottom of the piston skirt
3. Piston between oil ring and piston pin
4. Connecting rod between piston pin and bottom of skirt

44.

What is the first step in removal method of fly wheel?

1. Unlock the lock plate/wire
2. Unscrew the fastening bolts
3. Lock the fly wheel with wooden piece
4. Remove the fly wheel ring

45.

Where the fly wheel is fitted in the engine?

1. Cam shaft
2. Crank shaft
3. Rocker arm shaft
4. Primary shaft

46.

Which valve allows one direction flow only?

1. Poppet valve
2. Rotary valve
3. Reed valve
4. Sleeve valve

47.

What is the term used to refer when a valve open before TDC?

1. Lead
2. Lag
3. Over lap
4. Retard

48.

What is the term used to refer when a valve closes after BDC?

1. Lead
2. Advance
3. Lag
4. Over lap

49.

What is the term used to refer when both valves open position?

1. Lead
2. Lang
3. Overlap
4. Advance

50.

Which is used to convert rotary into reciprocating motion?

1. Cam Shaft
2. Connecting rod
3. Rocker arm
4. Main shaft

51.

Which is the drive source of a cam shaft?

1. Crank Shaft
2. Fly wheel
3. Self motor
4. Gear box

52.

What is the speed ratio cam shaft to crank shaft?

1. Half
2. Equal
3. Double
4. Triple

53.

Which tool is required to remove the valves?

1. Torque wrench
2. Valve spring lifter
3. Box spanner
4. Scraper

54.

What is ovality of a bore?

1. Difference in dia measured top to bottom
2. Difference in dia thrust to non thrust side of cylinder
3. Difference in dia measured only at top
4. Difference in dia measured only at bottom

55.

When it is required to coincide the mark with timing gears?

1. During assembling water pump
2. During assembling oil pump
3. During assembling cam shaft
4. During assembling radiator

56.

Which gauge used to measure the cylinder bore wearness?

1. Compression gauge
2. Vacuum gauge
3. Dial gauge
4. Depth gauge

57.

What is the purpose of the timing chain?

1. To connect water pump pully
2. To connect alternator
3. To connect crank and cam shaft gear
4. To connect A/C compressor

58.

What is the purpose of the fly wheel timing mark?

1. To coincide the gears
2. To set the engine timing
3. To set the F.I.P timing
4. To set the valve clearance