GROUNDWATER -DRILLING
GROUNDWATER- DRILLING MCQs
1. The single phase domestic AC power supply voltage in India is: (A) 110 V (B) 230 V (C) 440 V (D) 550 V
Ans: B
2. The power source in a pneumatic system is: (A) Air receiver (B) Compressor (C) Value (D) Muffler
Ans: B
3. Viscosity is an internal property of a fluid. It is measure of its resistance to: (A) Current (B) Light (C) Sound (D) Flow
Ans: D
4. A transformer consists of: (A) One coil (B) Two coil (C) Three Coil (D) Four coil
Ans: B
5. Dog clutches are used in: (A) Gear box (B) Friction clutches (C) Brakes (D) Differentials
Ans: A
6. In an alternator the magnetic field is produced in the: (A) Rotor (B) Stator (C) Frame (D) Regulator
Ans: A
7. What type of dynamo is commonly used in automobiles? (A) Single pole type (B) Two pole type (C) Three pole type (D) Five pole type
Ans: B
8. The brushes of dynamo are made of: (A) Aluminium (B) Carbon (C) Copper (D) Brass
Ans: B
9. Why the air is cleaner filled with oil? (A) To lubricate (B) To prevent dust and dirt from atmosphere (C) To pressure (D) To accelerate
Ans: B
10. In diesel cycle combustion takes place in: (A) Constant pressure (B) Constant volume (C) Constant temperature (D) Constant temperature and pressure
Ans: A
11. In a turbo charged engine, the air pressure is increased by turbine-compressor driven by:
(A) Crank Shaft (B) Fan pulley (C) Startor motor (D) Exhaust gases
Ans: D
12. Which of the following conductors is used in bulbs? (A) Tungsten (B) Carbon (C) Copper (D) Nichrome
Ans: A
13. Injectors deliver fuel to: (A) Fuel filters (B) Fuel tank (C) To governors (D) To Engine cylinders
Ans: D
14. The relative density of the electrolyte in a lead acid battery is 1.280.This value indicate that the battery is: (A) Fully charged (B) Half charged (C) Three quarter charged (D) None of the above
Ans: A
15. The main purpose of lead-acid battery is to store electrical energy in the form of: (A) Kinetic Energy (B) Potential Energy (C) Chemical Energy (D) Mechanical Energy
Ans: C
16. The clutch plate assembly has a center steel disc riveted with springs for: (A) Absorbing shocks (B) Reducing noise (C) Higher flexibility (D) Higher strength
Ans: A
17. What is another name for throw out bearings: (A) Clutch release bearing (B) Tum around bearing (C) Flywheel bearing (D) Crank shaft bearing
Ans: A
18. The purpose of double declutching when changing down is to: (A) Slow down the lay shaft (B) Speed up the lay shaft (C) Slow down the main shaft (D) Speed up the main shaft
Ans: B
19. The central gear of an epicyclic gear box is called: (A) Ring gear (B) Planet gear (C) Sun gear (D) Internal gear
Ans: C
20. Two meshing gears have 4:1 gear ratio if the smaller gear has 12 teeth the larger will have: (A) 12 teeth (B) 24 teeth (C) 36 teeth (D) 48 teeth
Ans: D
21. Which one of the following is used in manual transmission to avoid the need for double declutching? (A) Motor oil (B) Dog clutch (C) Equalizer (D) Synchronizer
Ans: D
22. Running engine should be stopped by operating: (A) Relief valve (B) Rack Operating lever (C) Handle (D) Flywheel
Ans: B
23. A universal joint which is constructed with 2 yokes joined by a cross shaped trunion is called: (A) Hookes (B) Lay rub (C) Drough nut (D) Constant velocity
Ans: A
24. The purpose of slip joint at the front end of a propeller shaft is to allow: (A) The shaft to be removed and refitted (B) The drive to be transmitted through a varying angles (C) For the change in distance between the gear box and axle (D) For the variation in speed of the front universal joint.
Ans: C
25. The central portion of a propeller shaft is made from a: (A) Steel shaft (B) Gun metal shaft (C) Steel tube (D) Cast
Ans: C
26. Which of the following content present in the gasoline fuel increases the corrosion of engine? (A) Lead (B) Copper (C) Iron (D) Sulphur
Ans: A
27. The distance between adjacent meshing teeth of mating gear is called: (A) Clearance (B) Pitch line (C) Back lash (D) Flank
Ans: C
28. Which one of the following gears does not revolve when the vehicle is in straight drive? (A) Crown wheel (B) Planetary gear (C) Pinion (D) Sun gear
Ans: B
29. In a fully floating type of axle the vehicle load is taken up by: (A) Axle housing (B) Tapered roller bearing (C) Axle shaft (D) Hub
Ans: A
30. The type of wheel which cannot be used with a tubeless type is: (A) Disc wheel (B) Wire wheel (C) Split wheel (D) Tight alloy wheel
Ans: B
31. If the tyres wear more on the edges than at the inside, the tyres are: (A) Property inflated (B) Over inflated (C) Under inflated (D) Not inflated
Ans: C
32. The shock absorber used in modern cars operates on the principle of: (A) Pneumatic (B) Hydraulic (C) Mechanical linkage (D) Centrifugal force
Ans: B
33. An axle is located on a leaf spring by a: (A) ‘u’ bolt (B) Spring clip (C) Centre bolt (D) Shakle pin
Ans: C
34. Rotary motion of the steering wheel is converted to a reciprocating motion by the: (A) Track rod (B) Track arm (C) Stub axle (D) Steering box
Ans: D
35. As applied to steering to abbreviation P.A.S stands for: (A) Pump assisted system steering (B) Pump aided steering (C) Power activated system steering (D) Power assisted steering
Ans: D
36. The steering ratio for manual steering of cars is approximately: (A) 5 (B) 15 (C) 50 (D) 100
Ans: B
37. In the disc brake the disc is attached to the: (A) Piston (B) Caliper (C) Wheel Hub (D) Steering Knackle
Ans: C
38. Brake shoes are made of: (A) Pressed steel (B) Cast aluminum (C) Plastic fiber (D) Either (A) or (B)
Ans: D
39. Most anti-skid devices are employed on: (A) Rear brakes (B) Front brakes (C) Secondary brakes (D) Parking brakes
Ans: B
40. The purpose of a brake is to: (A) Store energy (B) Change Friction (C) Convert heat energy to Kinetic energy (D) Convert Kinetic energy to heat energy
Ans: D
41. The type of reflector used for automobile head lamp: (A) Parabolic (B) Spherical (C) Hyperbolic (D) Elliptical
Ans: A
42. On cars having rack and pinion steering. The gear rack is attached to: (A) Relay rod (B) Pitman axis (C) Cross Shaft (D) Tie rod
Ans: D
43. Front wheel alignment is adjusted by altering: (A) Angle of rack arm (B) Length of track rod (C) Distance between King pins (D) Position of drag link
Ans: B
44. The tilting of the front wheel away from the vertical is called: (A) Caster (B) Camber (C) Toe in (D) Toc-out
Ans: B
45. Sequence of water circulation is: (A) Pump-block-head-regulator (B) Pump-radiator-block-head (C) Pump-radiator-block (D) None of these
Ans: A
46. The connecting rod is made of: (A) Cast iron (B) Aluminum (C) Mild steel (D) Alloy steel
Ans: D
47. The uppermost ring on piston is usually plated with: (A) Steel (B) Cast iron (C) Aluminum (D) Chromium
Ans: D
48. Engine vibration is due to: (A) Connecting rods (B) Uneven weight distribution of crank shaft (C) Unbalanced piston (D) All of these
Ans: D
49. The unit of brake power is: (A) Kilo Newton (B) Kilowatt (C) Kilopascal (D) Kilo Newton Meter
Ans: B
50. The pushrod in an engine is located between: (A) Camshaft and valve tappet (B) Valve tappet and rocker arm (C) Valve and valve spring (D) Valve and rocker arm
Ans: B
Ans: B
2. The power source in a pneumatic system is: (A) Air receiver (B) Compressor (C) Value (D) Muffler
Ans: B
3. Viscosity is an internal property of a fluid. It is measure of its resistance to: (A) Current (B) Light (C) Sound (D) Flow
Ans: D
4. A transformer consists of: (A) One coil (B) Two coil (C) Three Coil (D) Four coil
Ans: B
5. Dog clutches are used in: (A) Gear box (B) Friction clutches (C) Brakes (D) Differentials
Ans: A
6. In an alternator the magnetic field is produced in the: (A) Rotor (B) Stator (C) Frame (D) Regulator
Ans: A
7. What type of dynamo is commonly used in automobiles? (A) Single pole type (B) Two pole type (C) Three pole type (D) Five pole type
Ans: B
8. The brushes of dynamo are made of: (A) Aluminium (B) Carbon (C) Copper (D) Brass
Ans: B
9. Why the air is cleaner filled with oil? (A) To lubricate (B) To prevent dust and dirt from atmosphere (C) To pressure (D) To accelerate
Ans: B
10. In diesel cycle combustion takes place in: (A) Constant pressure (B) Constant volume (C) Constant temperature (D) Constant temperature and pressure
Ans: A
11. In a turbo charged engine, the air pressure is increased by turbine-compressor driven by:
(A) Crank Shaft (B) Fan pulley (C) Startor motor (D) Exhaust gases
Ans: D
12. Which of the following conductors is used in bulbs? (A) Tungsten (B) Carbon (C) Copper (D) Nichrome
Ans: A
13. Injectors deliver fuel to: (A) Fuel filters (B) Fuel tank (C) To governors (D) To Engine cylinders
Ans: D
14. The relative density of the electrolyte in a lead acid battery is 1.280.This value indicate that the battery is: (A) Fully charged (B) Half charged (C) Three quarter charged (D) None of the above
Ans: A
15. The main purpose of lead-acid battery is to store electrical energy in the form of: (A) Kinetic Energy (B) Potential Energy (C) Chemical Energy (D) Mechanical Energy
Ans: C
16. The clutch plate assembly has a center steel disc riveted with springs for: (A) Absorbing shocks (B) Reducing noise (C) Higher flexibility (D) Higher strength
Ans: A
17. What is another name for throw out bearings: (A) Clutch release bearing (B) Tum around bearing (C) Flywheel bearing (D) Crank shaft bearing
Ans: A
18. The purpose of double declutching when changing down is to: (A) Slow down the lay shaft (B) Speed up the lay shaft (C) Slow down the main shaft (D) Speed up the main shaft
Ans: B
19. The central gear of an epicyclic gear box is called: (A) Ring gear (B) Planet gear (C) Sun gear (D) Internal gear
Ans: C
20. Two meshing gears have 4:1 gear ratio if the smaller gear has 12 teeth the larger will have: (A) 12 teeth (B) 24 teeth (C) 36 teeth (D) 48 teeth
Ans: D
21. Which one of the following is used in manual transmission to avoid the need for double declutching? (A) Motor oil (B) Dog clutch (C) Equalizer (D) Synchronizer
Ans: D
22. Running engine should be stopped by operating: (A) Relief valve (B) Rack Operating lever (C) Handle (D) Flywheel
Ans: B
23. A universal joint which is constructed with 2 yokes joined by a cross shaped trunion is called: (A) Hookes (B) Lay rub (C) Drough nut (D) Constant velocity
Ans: A
24. The purpose of slip joint at the front end of a propeller shaft is to allow: (A) The shaft to be removed and refitted (B) The drive to be transmitted through a varying angles (C) For the change in distance between the gear box and axle (D) For the variation in speed of the front universal joint.
Ans: C
25. The central portion of a propeller shaft is made from a: (A) Steel shaft (B) Gun metal shaft (C) Steel tube (D) Cast
Ans: C
26. Which of the following content present in the gasoline fuel increases the corrosion of engine? (A) Lead (B) Copper (C) Iron (D) Sulphur
Ans: A
27. The distance between adjacent meshing teeth of mating gear is called: (A) Clearance (B) Pitch line (C) Back lash (D) Flank
Ans: C
28. Which one of the following gears does not revolve when the vehicle is in straight drive? (A) Crown wheel (B) Planetary gear (C) Pinion (D) Sun gear
Ans: B
29. In a fully floating type of axle the vehicle load is taken up by: (A) Axle housing (B) Tapered roller bearing (C) Axle shaft (D) Hub
Ans: A
30. The type of wheel which cannot be used with a tubeless type is: (A) Disc wheel (B) Wire wheel (C) Split wheel (D) Tight alloy wheel
Ans: B
31. If the tyres wear more on the edges than at the inside, the tyres are: (A) Property inflated (B) Over inflated (C) Under inflated (D) Not inflated
Ans: C
32. The shock absorber used in modern cars operates on the principle of: (A) Pneumatic (B) Hydraulic (C) Mechanical linkage (D) Centrifugal force
Ans: B
33. An axle is located on a leaf spring by a: (A) ‘u’ bolt (B) Spring clip (C) Centre bolt (D) Shakle pin
Ans: C
34. Rotary motion of the steering wheel is converted to a reciprocating motion by the: (A) Track rod (B) Track arm (C) Stub axle (D) Steering box
Ans: D
35. As applied to steering to abbreviation P.A.S stands for: (A) Pump assisted system steering (B) Pump aided steering (C) Power activated system steering (D) Power assisted steering
Ans: D
36. The steering ratio for manual steering of cars is approximately: (A) 5 (B) 15 (C) 50 (D) 100
Ans: B
37. In the disc brake the disc is attached to the: (A) Piston (B) Caliper (C) Wheel Hub (D) Steering Knackle
Ans: C
38. Brake shoes are made of: (A) Pressed steel (B) Cast aluminum (C) Plastic fiber (D) Either (A) or (B)
Ans: D
39. Most anti-skid devices are employed on: (A) Rear brakes (B) Front brakes (C) Secondary brakes (D) Parking brakes
Ans: B
40. The purpose of a brake is to: (A) Store energy (B) Change Friction (C) Convert heat energy to Kinetic energy (D) Convert Kinetic energy to heat energy
Ans: D
41. The type of reflector used for automobile head lamp: (A) Parabolic (B) Spherical (C) Hyperbolic (D) Elliptical
Ans: A
42. On cars having rack and pinion steering. The gear rack is attached to: (A) Relay rod (B) Pitman axis (C) Cross Shaft (D) Tie rod
Ans: D
43. Front wheel alignment is adjusted by altering: (A) Angle of rack arm (B) Length of track rod (C) Distance between King pins (D) Position of drag link
Ans: B
44. The tilting of the front wheel away from the vertical is called: (A) Caster (B) Camber (C) Toe in (D) Toc-out
Ans: B
45. Sequence of water circulation is: (A) Pump-block-head-regulator (B) Pump-radiator-block-head (C) Pump-radiator-block (D) None of these
Ans: A
46. The connecting rod is made of: (A) Cast iron (B) Aluminum (C) Mild steel (D) Alloy steel
Ans: D
47. The uppermost ring on piston is usually plated with: (A) Steel (B) Cast iron (C) Aluminum (D) Chromium
Ans: D
48. Engine vibration is due to: (A) Connecting rods (B) Uneven weight distribution of crank shaft (C) Unbalanced piston (D) All of these
Ans: D
49. The unit of brake power is: (A) Kilo Newton (B) Kilowatt (C) Kilopascal (D) Kilo Newton Meter
Ans: B
50. The pushrod in an engine is located between: (A) Camshaft and valve tappet (B) Valve tappet and rocker arm (C) Valve and valve spring (D) Valve and rocker arm
Ans: B
51. The cooling water does not come in direct contact with cylinder in: (A) Wet liner (B) Cast iron (C) Dry liner (D) None of these
Ans: C
52. Compression rings are generally made of: (A) Cast iron (B) Low carbon steel (C) High carbon steel (D) Aluminum
Ans: A
53. A hole drilled between the crank shaft main journal and crank pin: (A) Lubricating connecting rod bearing (B) Balancing the crank shaft (C) Reducing crank shaft weight (D) Reducing crank shaft vibration
Ans: A
54. The purpose of piston ring is to control: (A) Oil consumption (B) Combustion pressure (C) Cylinder wall lubrication (D) All of the above
Ans: D
55. The engine valves are closed by: (A) Valve spring (B) Cam shaft (C) Timing device (D) Crank shaft
Ans: A
56. The most commonly used valve in an automobile engine is: (A) Sleeve valve (B) Rotary Valve (C) Poppet Valve (D) All of these
Ans: C
57. The engine component which reduces noise of exhaust gases is: (A) Tall pipe (B) Muffler (C) Inlet manifold (D) Exhaust pipe
Ans: B
58. The camshaft controls: (A) Valve timing (B) Valve closing (C) Valve opening (D) All of these
Ans: D
59. While lapping a valve the lapping compound is applied to its: (A) Face (B) Stem (C) Guide (D) Tip
Ans: A
60. The carbon from the cylinder head is removed with: (A) Water (B) Caustic Soda (C) Scarper (D) Soap
Ans: C
61. A push rod is located between: (A) Valve and Valve spring (B) Valve and rocker arm (C) Tappet and rocker arm (D) None of these
Ans: C
62. The material used for cylinder block are: (A) Cast iron and steel (B) Cast iron and aluminum (C) Steel and aluminum alloy (D) Brass and steel
Ans: B
63. In which type of the nozzle having a auxiliary spray hole to assist easy starting under cold condition: (A) Long stem type (B) Pintle type (C) Delay nozzle (D) Pintaux nozzle
Ans: D
64. The ratio between B.H.P and I.H.P is called: (A) Thermal Efficiency (B) Engine efficiency (C) Mechanical Efficiency (D) Power Efficiency
Ans: C
65. A two-stroke engine has port in the: (A) Piston (B) Cylinder walls (C) Piston ring (D) Cork case
Ans: B
66. In which one of the following types of engine has the longest crank shaft: (A) Opposed engine (B) Radial Engine (C) Inline Engine (D) ‘V’ Engine
Ans: C
67. In a diesel engine the fuel is ignited by: (A) A glow plug (B) A spark Plug (C) An Injector (D) Virtue of temperature of compressed air
Ans: D
68. Maruti 800, Alto, Satro and i10 cars are example of: (A) Van (B) Hach back (C) Sedan (D) Estate
Ans: B
69. The period during which both the valves remains is called: (A) Overlap (B) Lag (C) Lead (D) None of these
Ans: A
70. Distributor type F.I.P is also called as: (A) In-line pump (B) Rotary pump (C) Low pressure pump (D) Servo pump
Ans: B
71. In which year of first road vehicles was built: (A) 1770 (B) 1746 (C) 1789 (D) 1885
Ans: A
72. Mini cars have length up to: (A) 3400 mm (B) 4000 mm (C) 4500 mm (D) 4700 mm
Ans: A
73. The top portion of piston is called: (A) Crown or head (B) Piston top (C) Land (D) Boss
Ans: A
74. Who was invited by 2 stroke engine? (A) Otto (B) Dugald clerk (C) Nicholas Joseph cugnot (D) Benz
Ans: B
75. The lubricating oil pump outlet is connected to: (A) Oil passage in rocker shaft (B) Oil gallery in cylinder block (C) Timing case inlet union (D) Fitter inlet pipe
Ans: B
76. Water sludge is formed in the crankcase due to mixing: (A) Fuel and Oil (B) Water and fuel (C) Water and Oil (D) Water and air
Ans: C
77. Where is pressure relief valve for lubricating system on a diesel engine provided: (A) Inlet port of Oil pump (B) Outlet port of Oil pump (C) Main oil gallery (D) Lubrication oil filler inlet
Ans: B
78. The lubricating oil pressure of engine is adjusted at: (A) Pressure gauge (B) Pressure valve (C) By pass valve (D) Main bearing clearance
Ans: B
79. The most commonly used lubrication system in automobile is the: (A) Petrol-oil system (B) Pressure system (C) Dry sump system (D) Splash system
Ans: B
80. In which of the following lubricating system an additional tank is provided: (A) Petrol oil lubrication system (B) Dry sump lubrication system (C) Splash type lubricating system (D) Pressure lubricating system
Ans: B
81. Which part indicates the oil level on the engine sump? (A) Feeler gauge (B) Plastic gauge (C) Oil pressure (D) Dip stick
Ans: D
82. The most important characteristic of a lubricating oil is its: (A) Viscosity (B) Physical stability (C) Chemical stability (D) Resistance against corrosion
Ans: A
83. The radiator core is made of: (A) Brass (B) Steel (C) Cast iron (D) Plastic
Ans: A
84. Hand priming device is useful when: (A) The engine is at full speed (B) The engine is at Idling speed (C) The engine is at full load (D) The engine is at rest
Ans: D
85. The thermostat valve is starts to open at about: (A) 90°C (B) 80°C (C) 50°C (D) 20°C
Ans: B
86. What type of pump is used in engine cooling system? (A) Vane pump (B) Reciprocating pump (C) Centrifugal pump (D) Rotary pump
Ans: C
87. If the thermostat is stuck closed .The engine will: (A) Warm up slowly (B) Overheat (C) Fail to start (D) Idle
Ans: B
88. Radiator core should be cleaned by: (A) Reverse flushing (B) Top of bottom of core (C) Outside the fan side (D) Top hose to bottom hose
Ans: A
89. Cooling media to remove heats from an engine is: (A) Air only (B) Water only (C) Air and Water (D) None of these
Ans: C
90. In bellows type thermostat liquid used are: (A) Spirit (B) Alcohol or other (C) Water or petrol (D) None of these
Ans: B
91. Which one of the following parts of diesel engine injector delivers fuel? (A) Fuel tank (B) Fuel filter (C) Engine cylinder (D) Governor
Ans: C
92. A glow plug is: (A) A compression device (B) A decompression device (C) Fitted in the inlet manifold (D) Screwed in the combustion chamber
Ans: D
Ans: C
52. Compression rings are generally made of: (A) Cast iron (B) Low carbon steel (C) High carbon steel (D) Aluminum
Ans: A
53. A hole drilled between the crank shaft main journal and crank pin: (A) Lubricating connecting rod bearing (B) Balancing the crank shaft (C) Reducing crank shaft weight (D) Reducing crank shaft vibration
Ans: A
54. The purpose of piston ring is to control: (A) Oil consumption (B) Combustion pressure (C) Cylinder wall lubrication (D) All of the above
Ans: D
55. The engine valves are closed by: (A) Valve spring (B) Cam shaft (C) Timing device (D) Crank shaft
Ans: A
56. The most commonly used valve in an automobile engine is: (A) Sleeve valve (B) Rotary Valve (C) Poppet Valve (D) All of these
Ans: C
57. The engine component which reduces noise of exhaust gases is: (A) Tall pipe (B) Muffler (C) Inlet manifold (D) Exhaust pipe
Ans: B
58. The camshaft controls: (A) Valve timing (B) Valve closing (C) Valve opening (D) All of these
Ans: D
59. While lapping a valve the lapping compound is applied to its: (A) Face (B) Stem (C) Guide (D) Tip
Ans: A
60. The carbon from the cylinder head is removed with: (A) Water (B) Caustic Soda (C) Scarper (D) Soap
Ans: C
61. A push rod is located between: (A) Valve and Valve spring (B) Valve and rocker arm (C) Tappet and rocker arm (D) None of these
Ans: C
62. The material used for cylinder block are: (A) Cast iron and steel (B) Cast iron and aluminum (C) Steel and aluminum alloy (D) Brass and steel
Ans: B
63. In which type of the nozzle having a auxiliary spray hole to assist easy starting under cold condition: (A) Long stem type (B) Pintle type (C) Delay nozzle (D) Pintaux nozzle
Ans: D
64. The ratio between B.H.P and I.H.P is called: (A) Thermal Efficiency (B) Engine efficiency (C) Mechanical Efficiency (D) Power Efficiency
Ans: C
65. A two-stroke engine has port in the: (A) Piston (B) Cylinder walls (C) Piston ring (D) Cork case
Ans: B
66. In which one of the following types of engine has the longest crank shaft: (A) Opposed engine (B) Radial Engine (C) Inline Engine (D) ‘V’ Engine
Ans: C
67. In a diesel engine the fuel is ignited by: (A) A glow plug (B) A spark Plug (C) An Injector (D) Virtue of temperature of compressed air
Ans: D
68. Maruti 800, Alto, Satro and i10 cars are example of: (A) Van (B) Hach back (C) Sedan (D) Estate
Ans: B
69. The period during which both the valves remains is called: (A) Overlap (B) Lag (C) Lead (D) None of these
Ans: A
70. Distributor type F.I.P is also called as: (A) In-line pump (B) Rotary pump (C) Low pressure pump (D) Servo pump
Ans: B
71. In which year of first road vehicles was built: (A) 1770 (B) 1746 (C) 1789 (D) 1885
Ans: A
72. Mini cars have length up to: (A) 3400 mm (B) 4000 mm (C) 4500 mm (D) 4700 mm
Ans: A
73. The top portion of piston is called: (A) Crown or head (B) Piston top (C) Land (D) Boss
Ans: A
74. Who was invited by 2 stroke engine? (A) Otto (B) Dugald clerk (C) Nicholas Joseph cugnot (D) Benz
Ans: B
75. The lubricating oil pump outlet is connected to: (A) Oil passage in rocker shaft (B) Oil gallery in cylinder block (C) Timing case inlet union (D) Fitter inlet pipe
Ans: B
76. Water sludge is formed in the crankcase due to mixing: (A) Fuel and Oil (B) Water and fuel (C) Water and Oil (D) Water and air
Ans: C
77. Where is pressure relief valve for lubricating system on a diesel engine provided: (A) Inlet port of Oil pump (B) Outlet port of Oil pump (C) Main oil gallery (D) Lubrication oil filler inlet
Ans: B
78. The lubricating oil pressure of engine is adjusted at: (A) Pressure gauge (B) Pressure valve (C) By pass valve (D) Main bearing clearance
Ans: B
79. The most commonly used lubrication system in automobile is the: (A) Petrol-oil system (B) Pressure system (C) Dry sump system (D) Splash system
Ans: B
80. In which of the following lubricating system an additional tank is provided: (A) Petrol oil lubrication system (B) Dry sump lubrication system (C) Splash type lubricating system (D) Pressure lubricating system
Ans: B
81. Which part indicates the oil level on the engine sump? (A) Feeler gauge (B) Plastic gauge (C) Oil pressure (D) Dip stick
Ans: D
82. The most important characteristic of a lubricating oil is its: (A) Viscosity (B) Physical stability (C) Chemical stability (D) Resistance against corrosion
Ans: A
83. The radiator core is made of: (A) Brass (B) Steel (C) Cast iron (D) Plastic
Ans: A
84. Hand priming device is useful when: (A) The engine is at full speed (B) The engine is at Idling speed (C) The engine is at full load (D) The engine is at rest
Ans: D
85. The thermostat valve is starts to open at about: (A) 90°C (B) 80°C (C) 50°C (D) 20°C
Ans: B
86. What type of pump is used in engine cooling system? (A) Vane pump (B) Reciprocating pump (C) Centrifugal pump (D) Rotary pump
Ans: C
87. If the thermostat is stuck closed .The engine will: (A) Warm up slowly (B) Overheat (C) Fail to start (D) Idle
Ans: B
88. Radiator core should be cleaned by: (A) Reverse flushing (B) Top of bottom of core (C) Outside the fan side (D) Top hose to bottom hose
Ans: A
89. Cooling media to remove heats from an engine is: (A) Air only (B) Water only (C) Air and Water (D) None of these
Ans: C
90. In bellows type thermostat liquid used are: (A) Spirit (B) Alcohol or other (C) Water or petrol (D) None of these
Ans: B
91. Which one of the following parts of diesel engine injector delivers fuel? (A) Fuel tank (B) Fuel filter (C) Engine cylinder (D) Governor
Ans: C
92. A glow plug is: (A) A compression device (B) A decompression device (C) Fitted in the inlet manifold (D) Screwed in the combustion chamber
Ans: D