Mechanical Engineering Quiz - Set 01


1. The ability of a material to undergo large permanent deformation with the application of a tensile force is called ductility.
Correct
Incorrect

2. The portion of a crankshaft which rests on cylinder block is called main journal.
Yes
No

3. The rotary compressors are suitable for large discharge of air at low pressure.
True
False

4. Ferrite and pearlite makes the steel soft and ductile.
Agree
Disagree

5. A baffle plate is fitted inside the oil pan to prevent the oil from splashing when it is subjected to vibration and other movement during vehicle operation.
True
False

6. An open cycle gas turbine works on the same cycle as that of a closed cycle gas turbine.
Yes
No

7. The quenching of steel from the upper critical point results in a fine grained structure.
Agree
Disagree

8. In a unit type body (frameless body) design, the sheet metal parts are welded together, forming a frame work to which outer skin is attached.
True
False

9. The increase in pressure in a vane blower takes place first due to compression and then due to back flow of air.
Correct
Incorrect

10. The steel produced by Bessemer or open hearth process is ________ to that produced by LD process.
Superior
Inferior

11. In a spark plug, when the temperature of the central electrode exceeds a certain temperature, any carbon that has adhered will be burnt off, and the temperature at which this burning off carbon starts is referred to as the self cleaning temperature.
Correct
Incorrect

12. The total heat rejected in a reciprocating air compressor is equal to the sum of the heat rejected during polytropic compression per kg of air and heat rejected in the intercooler per kg of air.
True
False

13. The dyeing down of a white flame during the operation of a Bessemer converter indicates that the air is burning out silicon and manganese.
Yes
No

14. The flywheel and the pressure plate bind the clutch disc between them so that the engine and the transmission can be engaged.
Yes
No

15. The clearance volume in the compressor is kept minimum because it effects on volumetric efficiency.
Correct
Incorrect

16. White cast iron has a high tensile strength and a low compressive strength.
Yes
No

17. Positive camber is used to compensate for wheels tilting inward due to the weight of the vehicle.
Yes
No

18. The actual volume of air delivered by a compressor, when reduced to the normal temperature and pressure conditions is called compressor capacity.
Yes
No

19. The advantage of double wishbone suspension design is that a large amount of freedom is available for setting geometry and precise settings can be made for driving comfort and steer-ability
Correct
Incorrect

20. Workdone by a two-stage reciprocating air compressor per cycle is equal to the work-done in L.P. cylinder and H.P. cylinder.
True
False

     Score =

Correct answers:


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