30 câu hỏi
Spark plugs are mounted inside ________
Cylinder block
Cylinder head
Crankcase
Piston
Which of the following provides passages for flow of cooling water?
Cylinder block
Cylinder head
Crankcase
Piston
For retaining compression in the cylinder, a flat piece of ___________ is placed between the cylinder head and cylinder block.
Gasket
Rims
Cylinder liner
Invar strut
The main advantage of using aluminium alloy for cylinder head is ____________
Lightness in weight
High thermal conductivity
Less corrosion rate
Cost
Inter-metallic corrosion between steel studs and aluminium alloy lead to ___________
Engine war-up
Higher fuel consumption
Cylinder head sticking to cylinder block
Gaskets get damaged
Why is the cylinder head cast as a separate piece?
Good compression ratio
High efficiency
Prevent collision
Easy removal
____________ is a combination of fibre and cork granules that is more compressible and resilient.
Karropak
Felicoid
Shimbestos
Metal sandwich
Which of the following oil pan gaskets are not affected by oil and grease?
Felbestos
Metal encased
Felcoperned
Felicod
Which of the following is not the type of manifold gaskets?
Felbestos
Metal encased
Metal embossed
Shimbestos
____________ is attached to the bottom face of the cylinder block.
Crank case
Oil pan
Piston
Cylinder liners
The cylinder block and upper half of the crank case are cast by _________ material.
Aluminium
Zinc
Semi-steel
Titanium
_________ serves as a cooling and ventilation of engine lubricating oil.
Crank case
Oil sump
Cam shaft
Piston
A heat engine converts heat energy from fuel combustion or any other source into which type of work?
Electrical work
Mechanical work
Pressure work
None of the mentioned
A steam engine comes under the category of ________
External combustion engines
Internal combustion engines
All of the mentioned
None of the mentioned
Which of these is a power-absorbing heat engine?
Steam engine
Petrol engine
Air compressor
None of the mentioned
Which of these is a type of reciprocating steam engine?
Simple
Compound
Uniflow
All of the mentioned
A gas undergoes step 4 in the Carnot cycle. Which of these processes describes the 2nd step?
Isentropic expansion
Isentropic compression
Isothermal expansion
Isothermal compression
Thermal power plants operate on which of these cycles?
Otto cycle
Rankine cycle
Carnot cycle
Stirling cycle
The efficiency of a combined cycle gas turbine (steam cooled) can range as high as ________
20%
30%
40%
60%
The torque available at the contact between the road and driving wheel is called _________
Brake power
Friction power
Tractive effort
Engine torque
The engine produces mechanical power that is transmitted to the automobile’s wheels through a drivetrain.
Transmission & driveshaft(s)
Differential & axles
All correct
All incorrect
The engine produces mechanical power that is transmitted to the automobile’s wheels through a drivetrain.
Transmission & driveshaft(s)
Differential & axles
All correct
All incorrect
SUVs is a __________
Same-utility vehicles
Sport-universal vehicles
Sport-utility vehicles
Sport-utility vendor
Power is produced during
Intake stroke
Compression stroke
Combustion stroke
Exhaust stroke
An SI engine is:
A type of internal combustion engine
A Stirling engine
Always fuel injected
None of the above
The two-stroke engine does not use _____
Spark plug
Inlet and exhaust valves
Crankshaft
Piston
The transmission is a gear system that adjusts the ratio of engine speed to wheel speed.
Rocker
Piston rod
Gearbox
Pin
The drive shaft is used to _____ the transmission output shaft to the differential input shaft.
Couple
Connect
Link
All correct
The gear ratio also _____ fuel economy.
Effects
Affects
Influenced
All correct
Engine, clutch, transmission, drive shaft, differential and driven wheels are elements of drivetrain system
True
False