Mechanical Engineering Quiz - Set 18 Mech Quiz Quiz Questions 01. The distance moved by the valve from one end to the other end is called valve travel. (A) True (B) False 02. A diesel engine has inlet valve, fuel injection valve and exhaust valve. (A) Yes (B) No 03. The radius of gyration is the distance where the whole mass (or area) of a body is assumed to be concentrated. (A) Incorrect (B) Correct 04. The thickness of key is usually taken equal to one-sixth of diameter of shaft. (A) Yes (B) No 05. Gagger is used for cleaning the moulding sand. (A) Correct (B) Incorrect 06. Power screws are used to convert rotary motion into translatory motion. (A) True (B) False 07. A Watt's governor is a spring loaded governor. (A) Yes (B) No 08. As the cutting speed increases, tool life decreases. (A) Yes (B) No 09. A large electrode is used in unshielded arc welding. (A) Correct (B) Incorrect 10. The unit of mass moment of inertia in S.I. units is kg-m^2. (A) True (B) False 11. The plunge grinding requires very __________ speed. (A) High (B) Low 12. A pouring basin acts as a reservoir for the molten metal. (A) Agree (B) Disagree 13. Frequency of vibrations means the number of cycles per second. (A) No (B) Yes 14. Sulphur dioxide has the lowest boiling point. (A) Yes (B) No 15. In bending operation, the metal takes the shape of a punch. (A) Yes (B) No 16. The efficiency of a screw jack is dependent upon the load raised or lowered. (A) True (B) False 17. The entropy is a point function and thus it is a property of the same. (A) Correct (B) Incorrect 18. The kinetic energy of a body __________ upon its mass and velocity. (A) Does not depend (B) Depends 19. The critical pressure gives the velocity of steam at the throat equal to the velocity of sound. (A) Agree (B) Disagree 20. The workdone in a free expansion process is zero. (A) True (B) False Submit Test Next Quiz Tests: Set 01 Set 02 Set 03 Set 04 Set 05 Set 06 Set 07 Set 08 Set 09 Set 10 Set 11 Set 12 Set 13 Set 14 Set 15 Set 16 Set 17 Set 18 Set 19 Set 20 Set 21 Set 22 Set 23 Set 24 Set 25 Set 26