Câu 1: In which year was the first automobile built?
1769
Câu 2: What is factor considering when buying a car ?
Design
Câu 3: Which factor is showed about economy of car
Fuel comsumption
Câu 4: What is material used for frame of automobile ?
Steel
Câu 5: What is material used for cover of catalytic converter
Stainless steel
Câu 6: A ______________ is a wheel of a motor vehicle that transmits force
Drive wheel
Câu 7: what is the amount of money you get when you sell your car
Resale value
Câu 8: The phrase to talk about “ How much petrol or diesel the car uses ”
Fuel consumption
Câu 9: What is showing items inside the car ?
Interior features
Câu 10: Why is frame of car made from Steel ?
Capability to absorb impact energy
Câu 11: Which of these is not necessary for the description of an automobile?
Colour
Câu 12: Which of these is necessary for the description of an automobile?
All of the mentioned
Câu 13: Which of these cars is a Crossover SUV?
Nissan Pathfinder
Câu 14: Which of these is a compact executive car?
Audi A4
Câu 15: What is the power delivered by the engine to the crankshaft called?
Brake power
Câu 16: The torque available at the contact between road and driving wheel is called
Tractive effort
Câu 17: The force that opposes the motion of a vehicle is
All of the mentioned
Câu 18: Wind or air resistance depends on which of the following factors?
All of the mentioned
Câu 19: Gradient resistance for a vehicle depends on which of the following factors?
Weight of the vehicle
Câu 20: Two door and four door type automobiles are classified as
Sedan
Câu 21: Which of these falls under LMV(Light Motor Vehicle) category based on capacity?
Cars
Câu 22: Most of the ______________ vehicles have automatic transmission.
American
Câu 23: A 4*2 drive vehicle implies that
It has 4 wheels out of which 2 are drive wheels
Câu 24: A delivery van falls under the category of which type of vehicles.
Light goods vehicles
Câu 25: Abbreviation HEVs stands for what
Hybrid Electric Vehicles
Câu 26: In Automobile, what does SUV stand for ?
Sport Utility Vehicle
Câu 27: Trucks and Buses use which type of fuel ?
Diesel
Câu 28: A conventional suspension system uses which of these?
Leaf Springs
Câu 29: A heat engine converts heat energy from fuel combustion or any other source into which type of work ?
Mechanical work
Câu 30: Which of these is a power absorbing heat engine ?
Air compressor
Câu 31: The firing order in case of four cylinder inline engines is usually
Either 1-3-4-2 or 1-4-3-2
Câu 32: In case of four cylinder opposed cylinder engines the firing order is
1-4-3-2
Câu 33: In case of four cylinder inline engine the number of firing strokes in one revolution of crank is
2
Câu 34: In four cylinder engines the ignition advance depends on
Quality of fuel and engine speed
Câu 35: Ignition advance is expressed in terms of _________ ?
All of the mentioned
Câu 36: Sir Rudolf Diesel invented diesel engine in which year ?
1913
Câu 37: In internal combustion engine the approximate percentage of the combustion heat that passes to the cylinder walls is _________ ?
30%
Câu 38: In a four stroke S.I engine the exhaust valve usually opens ______ ?
35 degree to 60 degree before BDC
Câu 39: In a diesel engine the pressure during combustion may increase to a range at _________ ?
55-75 atm
Câu 40: The pressure in an engine cylinder is less than atmospheric pressure when the engine is performing which stroke ?
Suction
Câu 41: Kinds of mechanical properties
Strength
Câu 42: Kinds of physical properties
Density
Câu 43: Kinds of chemical properties
a&b
Câu 44: Kinds of manufacturing properties ?
All correct.
Câu 45: Types of engineering materials
3
Câu 46: Find suitable words with phrase “ Formed by mixing other metals or elements ”
An alloy
Câu 47: Find suitable words with phrase “ Allows heat or current to flow easily ”
A conductor
Câu 48: Find suitable words with phrase “ Does not allow heat or current to flow easily”
An insulator
Câu 49: The bulk of hydrocarbon belongs to which group?
paraffin
Câu 50: Which of these is not a lighter fraction of fuel oil ?
boiler fuel
Câu 51: Which of the following type of fuel does not contain ash ?
natural gas
Câu 52: Which of these gases is the reason for the maintenance of natural gas at cryogenic temperatures ?
methane
Câu 53: The gas which contributes maximum to heating value of natural gas is ?
CH4
Câu 54: A coal containing high percentage of durian is called _________ ?
splint
Câu 55: Which types of wheels cannot be used with a tubeless tire ?
Wire wheel
Câu 56: Which type of wheels is preferred in sports cars ?
Magnesium alloy wheel
Câu 57: In case of a wire wheel, the vehicle weight is supported by the wire in _________
Tension
Câu 58: Where will an underinflated tire wear the thread most?
Near the edge
Câu 59: Where will an overinflated tire wear the thread most?
Near center
Câu 60: What do the permissible of mixing cross-ply and radial-ply automobile tires allow?
Cross-ply tires on front wheels
Câu 61: What is the purpose of tire rotation on automobiles?
Equalize wear
Câu 62: Which are the two materials used in a bimetallic piston?
Aluminum and steel
Câu 63: By adding which of the following material to aluminum alloy piston slap can be avoided?
Silicon
Câu 64: Which among the following casting process is used in the casting of the piston?
Gravity die casting
Câu 65: In a disc brake, which component provides the pad-to-disc adjustment?
Piston seal
Câu 66: On what principle does the braking system in the car work?
Frictional force
Câu 67: Which of the following is not a method to avoid piston slap?
Increase the size of the piston skirt
Câu 68: Which is the material used to wound on a wire wound piston?
Steel
Câu 69: Which among the following type is named when the silicon content is 12% in an aluminum alloy?
Eutectic
Câu 70: Which of the following is the main reason for a burnt piston?
Detonation
Câu 71: Which material is coated on the piston to increase the service life?
Tin
Câu 72: Which of the following material is used in the manufacturing of the connecting rod?
Steel
Câu 73: What is the percentage of carbon present in a medium carbon steel type connecting rod?
0.35-0.45
Câu 74: In splash lubrication, the spout is attached to with part of the connecting rod?
Big end
Câu 75: Which among the following material is plated on the cylinder liner to improve the resistance to corrosion and wear?
Chromium
Câu 76: Which type of casting process is used to cast cylinder liners?
Centrifugal casting
Câu 77: Which among the following material is most commonly used in the manufacturing of cylinder liner?
Grey cast iron
Câu 78: What is the percentage of carbon present in a cast steel type crankshaft?
1.35-1.6
Câu 79: Exhaust manifolds are usually made of what material?
Cast iron
Câu 80: Which of the following material is the most commonly used in the construction of crankshaft?
Cast steel
Câu 81: Camshaft gear is made from which material?
Bakelite
Câu 82: Cylinder liner materials are made of alloy iron containing
All of the mentioned
Câu 83: Aluminium cylinder blocks require __________
Cast iron Liners
Câu 84: Which of the following is the most important property of the lubricant?
Viscosity
Câu 85: Which of the following viscosity indices shows the larger changes in viscosity with temperature?
10
Câu 86: Which of the following of oils is multi-grade oil?
SAE 10W 30
Câu 87: Which of the following oils has the highest viscosity?
SAE 50
Câu 88: Which of the following is not a part of the transmission system?
Wheels
Câu 89: The electrical system of an automobile contains which of the following?
All of the mentioned
Câu 90: The electrical system of an automobile contains which of the following?
Lighting systems
Câu 91: An engine is a machine designed to convert one form of ________ into mechanical energy?
Energy
Câu 92: Heat engines burn a ________ to create heat which is then used to do work.
Fuel
Câu 93: Combustion process of the air-fuel mixture is ________ by a spark from a spark plug.
Ignited
Câu 94: Piston is a cylindrical unit, used to compress the charge during ____________
Compression stroke
Câu 95: The pistons of IC engines are usually made of ______________
Aluminium alloy
Câu 96: The ___________ is called the backbone of an engine
Crankshaft
Câu 97: The major function of the camshaft is to operate the ___________ valves
a&b
Câu 98: The camshaft is __________ by crankshaft at half the speed of the crankshaft
Driven
Câu 99: Fuel and air is compressed in the ________________chamber
Combustion
Câu 100: The function of crankcase in two stroke petrol engines is _________
It forms a pressurised chamber for fuel air mixture
Câu 101: Connecting rod is attached to the piston by the ___________
Piston pin
Câu 102: Engine pistons are generally made of aluminium alloy because ______
It is lighter
Câu 103: Piston compression rings are made of _____________
Cast iron
Câu 104: What type of material is used for Gudgeon pin?
Steel alloy of high strength
Câu 105: When no.1 piston of a four cylinder in line four stroke engine is performing the power stroke, no.4 piston is on the stroke called _______
Suction
Câu 106: Two stroke engine is preferred for small vehicle because
Its size is small
Câu 107: The size of intake valve is
Larger than that of the exhaust valve
Câu 108: A negative loop in the P.V diagram of ann IC engine is due to
Suction of air for engine
Câu 109: Piston displacement is calculated from the
Bore and stroke
Câu 110: The range of gear ratios in a vehicle depends on
Max.engine torque/wt. of vehicle
Câu 111: If compression ratio is increased
Air standard efficiency will be increased
Câu 112: The combustion process in a diesel engine is
Constant pressure process
Câu 113: The temperature of the compressed air should be __________________of the fuel
Above the flash point
Câu 114: The purpose of crankcase ventilation is to __________
a.
The purpose of crankcase ventilation is to
Câu 115: The purpose of crankcase ventilation is to
Remove vaporised water and fuel
Câu 116: The purpose of a piston pin is that
It connect the piston to the connecting rod
Câu 117: The engine produces mechanical power that is transmitted to the automobile’s wheels through a
drivetrain system.
Câu 118: systems provide control over direction and speed
Steering and braking
Câu 119: The piston _____ in the cylinder bore to evacuate the combustion chamber.
Moves downward
Câu 120: A petrol engine, whether four- or two-stroke, is called a _____
Spark Ignition engine
Câu 121: There are two methods by which fuel is injected into a combustion chamber, they are _____.
Direct or indirect injection.
Câu 122: Spark plug are mounted inside
crank case
Câu 123: Which of the following provides passages for flow of cooling water?
Cylinder head
Câu 124: For retaining compression in the cylinder, a flat piece of ___________ is placed between the cylinder head and cylinder block.
Gasket
Câu 125: The main advantage of using aluminium alloy for cylinder head is ____________
High thermal conductivity
Câu 126: Inter-metallic corrosion between steel studs and aluminium alloy lead to
Cylinder head stick to cylinder block
Câu 127: Why cylinder head cast as a separate piece?
Easy removal
Câu 128: is combination of fibre and cork granules that is more compressible and resilient.
Felicoid
Câu 129: Which of the following oil pan gaskets are not affected by oil and grease?
Felcoperne
Câu 130: Which of the following is not the type of manifold gaskets?
shimbestos
Câu 131: is attached to the bottom face of cylinder block
crank case
Câu 132: The cylinder block and upper half of the crank case are cast by _________ material.
Semi-steel
Câu 133: serves as a cooling and ventilation of engine lubricating oil
oil sump
Câu 134: A heat engine converts heat energy from fuel combustion or any other source into which type of work
Mechanical work
Câu 135: A steam engine comes under the category of
External combustion engines
Câu 136: Which of these is a power absorbing heat engine?
Air compressor
Câu 137: Which of these is a type of reciprocating steam engine?
All of the mentioned
Câu 138: A gas undergoes step 4 in Carnot cycle. Which of these processes describes the 2nd step?
Isentropic compression
Câu 139: Thermal power plants operate on which of these cycles?
Rankine cycle
Câu 140: The efficiency of a combined cycle gas turbine(steam cooled) can range as high as
60%
Câu 141: The torque available at the contact between road and driving wheel is called
Tractive effort
Câu 142: The engine produces mechanical power that is transmitted to the automobile’s wheels through a drivetrain.
All correct.
Câu 143: SUVs is a
Sport-utility vehicles
Câu 144: Power is produced during
combustion stroke
Câu 145: An SI engine is:
a type of internal combustion engine
Câu 146: The two-stroke engine does not use _____
inlet and exhaust valves
Câu 147: The transmission is a gear system that adjusts the ratio of engine speed to wheel speed.
gearbox
Câu 148: The drive shaft is used to _____ the transmission output shaft to the differential input shaft.
connect
Câu 149: The gear ratio also _____ fuel economy.
affects
Câu 150: Engine, clutch, transmission, drive shaft, differential and driven wheels are elements of drivetrain system
False
Câu 151: Which of these is not a power loss which takes place between engine and driving wheel?
None of the mentioned
Câu 152: The force that opposes the motion of a vehicle is
All of the mentioned
Câu 153: Rolling resistance doesnot depend on which of the following factors
Radius of driving wheel
Câu 154: For an average type of road surface what percentage of vehicle’s weight constitutes rolling resistance?
1 to 2%
Câu 155: Wind or air resistance depends on which of the following factors?
All of the mentioned
Câu 156: The value of coefficient of air resistance for average cars is approximately equal to
0.0032
Câu 157: One Horse Power(H.P) is approximately equal to _____ Watts.
746
Câu 158: Gradient resistance for a vehicle depends on which of the following factors?
Weight of the vehicle
Câu 159: Power to weight ratio for high performance cars can range up to
230
Câu 160: Which of the following is not a major part of the crankshaft?
Water pump
Câu 161: How many types of crankshaft construction are used universally?
2
Câu 162: What does inlet manifold carry to the engine?
Air+ fuel
Câu 163: Manifolds are connected to which part of the engine?
Cylinder head
Câu 164: In the petrol engine, the inlet manifold carries the air-fuel mixture from which part to the cylinder?
Carburetor
Câu 165: The manifold must be larger enough to allow sufficient flow for what?
Max power
Câu 166: Exhaust manifold is connected to which part of the engine?
Cylinder head
Câu 167: The exhaust manifold is designed to withstand what?
Heat
Câu 168: The surface of the exhaust manifold is made smooth to minimize the restriction of what?
Exhaust gas
Câu 169: Which of the following helps in the uniform speed of crankshaft despite uneven power impulses of the engine cylinder?
Flywheel
Câu 170: How much percentage of the cylinder bore size concerningthe thickness of the crank web?
20
Câu 171: In a four stroke cycle engine camshaft revolves at ______ the crank speed.
Half
Câu 172: The gears on camshaft and crankshaft are known as
Timing gears
Câu 173: The material known as high carbon high copper chrome silicon cast steel is used for making
Camshaft
Câu 174: Crankshafts are usually constructed by
Drop forging
Câu 175: Crankshafts are usually constructed b
Drop forging
Câu 176: The crankshaft rotates the camshaft usin
Chain drive
Câu 177: The crankshaft should be inspected for
All of the mentioned
Câu 178: If there are 7 clutch plates in a multi-plate clutch, what is the number of pair of contact surfaces?
6
Câu 179: . Which of the following contains no linkage between the clutch and the pedal?
Clutch – by – wire
Câu 180: Where is the clutch located?
Between transmission and engine
Câu 181: Which of the following parts of the cover assembly that hold the pressure plate against the clutch plate?
Springs
Câu 182: Which of the following is the coefficient of friction of the clutch plate?
0.4
Câu 183: What does the venturi in carburetor cause?
Increase of air velocity
Câu 184: Where does the power for mechanical fuel pump come from?
Camshaft
Câu 185: How can a two-stroke engine identify by?
Absence of valves
Câu 186: At which stroke the fuel is injected in the CI engine?
Compression stroke
Câu 187: The stroke of an engine is the
Distance between TDC and BDC
Câu 188: In a four stroke engine each cylinder has
Two valves
Câu 189: The valve is opened as the cam lobe on the cam raises the
Valve lifter
Câu 190: Which of the following is the need of the gearbox?
To vary the torque of the vehicle
Câu 191: In which type of manual transmission the double-declutching is used?
Constant-mesh gearbox
Câu 192: Where is the overdrive located?
Between transmission and propeller shaft
Câu 193: Which of the following is not part of automatic transmission?
Sliding mesh gearbox
Câu 194: Why are the helical gears used commonly in transmission over spur gears?
Low noise level and high strength
Câu 195: Increase of torque in a vehicle is obtained by decreasing power.
False
Câu 196: Which types of joints are used when the shafts are inclined?
Universal joint
Câu 197: Why do the hypoid gears require special lubricant?
There is relative motion between teeth
Câu 198: What is the need of the universal joint?
To transfer torque at an angle
Câu 199: A two-piece propeller shaft requires one universal joint.
False
Câu 200: Which of the following is not considered while deciding the optimum firing order of the engine?
Engine configuration
Câu 201: Why is the Dwell meter used?
To set the contact breaker gap
Câu 202: On which condition does the vacuum advance mechanism shift the ignition point?
Under part-load operation
Câu 203: The conventional direction of electric field is
Positive to negative
Câu 204: Electric field originates at
Positive charge
Câu 205: Electric field terminates at
Negative charge
Câu 206: Which among the following statements is true with regard to electric field lines?
Electric field lines never intersect
Câu 207: A field that spreads outwards in all directions is
Radial
Câu 208: The insulant between the two plates of a capacitor is called
Dielectric
Câu 209: Which of the following depends on charging and discharging rate of a capacitor?
Time constant
Câu 210: What is the initial current while charging a capacitor?
High
Câu 211: What is the final current while charging a capacitor?
Zero
Câu 212: Capacitor is a device used to
store electrical energy
Câu 213: Capacitor stores which type of energy?
potential energy
Câu 214: Capacitor blocks__________ after long time.
direct current
Câu 215: Which of the following is a passive device?
Capacitor
Câu 216: For which medium capacitance is high?
Metal
Câu 217: Which component in the DC generator produces a magnetic field?
Carbon brushes
Câu 218: Which component in alternator produces a magnetic field?
Rotor
Câu 220: In an alternator, which component controls the output?
Voltage regulator
Câu 221: What is the material of an alternator frame?
Aluminum
Câu 222: If the lead-acid cell has a total of 17 cells, then what is the number of positive plates?
8
Câu 223: Which of the following is not an advantage of the alternator?
High efficiency
Câu 224: Field coils in a generator produce permanent magnet.
False
Câu 225: What is the colour of a positive plate of a lead-acid battery?
Brown
Câu 226: What gets deposited on the plates of a discharged lead-acid battery?
PbSO4
Câu 227: What is the number of positive plates in a battery cell?
One less than the negative plates
Câu 228: What is a maintenance-free battery?
A battery having lead-calcium plate grid
Câu 229: Which of the following is the advantage of alkaline battery?
The specific gravity of electrolyte remains the same
Câu 230: Which of the following is the best method to measure the speed?
Magnetic pickup
Câu 231: The function of the ignition system is to _____________ the flame propagation process.
initiate
Câu 232: The total enthalpy required to cause the flame to be self sustaining and promote ignition, is given by the product of the surface area of the spherical flame and the enthalpy per unit area.
True
Câu 233: A spark can be caused by applying a sufficiently low voltage between two electrodes separated by a gap.
False
Câu 234: An ignition process obeys the law of
conservation of mass
b) conservation of energy
Câu 235: As air is poor conductor of electricity an air gap in an electric circuit acts as a high
resistance
Câu 236: An ignition system should provide a good spark between the _____________ of the plugs at the correct timing.
electrodes
Câu 237: An ignition system should be heavy, effective and reliable in service.
False
Câu 238: The interference from the low voltage source should not affect the functioning of the radio and television receivers inside an automobile.
False
Câu 239: An FWD layout means the car has a four-wheel traction.
False
Câu 240: What is the idling RPM of a motorcycle petrol engine?
1200RPM
Câu 241: Anything which burns in the presence of ______ is known as combustion.
air
Câu 242: What was used as fuel during the early invention of IC engines?
Gun-powder
Câu 243: Otto cycle is used in which engine?
Petrol engine
Câu 244: Who invented the first car which used gasoline as fuel?
Karl Benz
Câu 245: How many power strokes are produced in a 4-stroke diesel engine running at 1500RPM?
750
Câu 246: Which of the mentioned below is not a component of the IC engine?
Wheel
Câu 247: The black smoke coming out of a petrol engine is due to what particles?
Carbon particles
Câu 248: Which is the first company to use assembly line mode for the production of cars?
Ford
Câu 249: Which of the mentioned below is the external combustion engine?
Steam engine
Câu 250: The Wankel engine is also called a Rotary engine.
True
Câu 251: Earlier, which material was used in pistons?
Cast iron
Câu 252: Why aluminum alloy pistons are used in highly rated engine?
Due to the piston speed
Câu 253: Cast iron pistons were used in low-speed cars, why?
Due to low-speed piston
Câu 254: Why aluminum alloy pistons need more clearance?
Thermal expansion
Câu 255: Why cast iron was used in pistons earlier?
Availability
Câu 256: Which is the electrolyte used in Li-ion battery?
Lithium-based gel
Câu 257: Which of the following statement is true for the movement of electrons concerning the direction of current?
Opposite direction of current
Câu 258: Which is the material used to as anode in a lithium-ion battery?
Aluminum foil coated with graphite
Câu 259: Which of the following is formed at the graphite electrode during the charging process of a battery when the lithium-ion move through the separator?
Lithium carbide
Câu 260: What is the maximum storage temperature in degree centigrade of a Li-ion battery?
60
Câu 261: Which of the following material is used as separator material in Lithium-ion battery?
Plastic
Câu 262: Which test is used to determine the evaporative emissions from an engine?
SHED test
Câu 263: Which test is used to measure a coating’s resistance to abrasions?
Gravelometer testing
Câu 264: Which gases cannot be measured in emissions bench testing?
Ethane
Câu 265: An engine has a bore diameter of 160mm, what is the maximum number of studs in the engine?
8
Câu 266: Which of the following material is used in the manufacturing of studs?
Steel
Câu 267: Which are the two forces experienced by the center crankshaft?
Bending and torsional
Câu 268: Which material is used for crankshaft?
Plain carbon steel
Câu 269: Which of the following statements is not correct with respect to alcohols as alternate fuel?
Anti-knock characteristics of alcohol are poor
Câu 270: Why a small amount of gasoline is added to alcohol?
To improve cold-weather starting
Câu 271: What is a dual fuel engine?
he engine which uses gaseous and liquid fuel
Câu 272: Which of the following has the same combustion as HCCI (Homogeneous Charge Compression Ignition) engine?
Hybrid of both SI and CI engine
Câu 273: Which of the following is true for the HCCI engine?
Pre-catalyst hydrocarbon emissions are higher
Câu 274: For which of the following engine lean-burn concept is ideal?
SI engine
Câu 275: By which technique can the charge stratification be achieved?
Injection as well as carburation
Câu 276: Which of the following is true for stratified charge engine?
Multi-fuel capabilities
Câu 277: What is true about the Wankel engine?
It has a longer operating cycle
Câu 278: Where is the variable compression ratio used?
SI engine
Câu 279: Which of the following is true for stratified charge engine?
It has multi-fuel capabilities
Câu 280: Which of the following is true about the Stirling engine?
High efficiency, quiet operation and compatible with renewable energy
Câu 281: Which of the following is one of the major exhaust emissions from CI engines compared to SI engines?
Particulates
Câu 282: Which of the following causes the photochemical smog?
NOx and HC
Câu 283: What does the blue smoke in diesel engine indicate?
Unburnt oil
Câu 284: During which condition of the vehicle does NOx emission in SI engine will be lowest?
Idling
Câu 285: For what purpose is the Rhodium used?
To reduce NOx
Câu 286: Why is the fumigation technique used?
To control smoke
Câu 287: Why are lead compounds added in petrol?
Reduce HC emission
Câu 288: Which of the following cannot be reduced by thermal converters?
NOx
Câu 289: What can be reduced by using exhaust gas recirculation (EGR) effectively?
NOx
Câu 290: Three-way catalytic converters reduce the emission of CO, HC, and soot.
False
Câu 291: On which of the following does brake mean effective pressure (BMEP) in an engine depend upon?
Speed and power
Câu 292: What is gasohol?
10% ethanol + 90% gasoline
Câu 293: Which of the following is a disadvantage of hydrogen as a fuel in IC engine?
Detonating tendency
Câu 294: Which of the following is the advantage of the hydrogen as a fuel?
No HC and CO emissions
Câu 295: What is the major disadvantage of LPG as a fuel in the automobile?
Reduction in the life of the engine and less power compared to gasoline
Câu 296: Why alcohols cannot be used in CI engines?
Alcohols have high self-ignition temperature and low latent heat of vaporization
Câu 297: Which of the following is the major constituent of natural gas?
Methane
Câu 298: What is octane number of natural gas?
80-100
