Mechanical Engineering Quiz - Set 09 - ObjectiveBooks

Mechanical Engineering Quiz - Set 09

Quiz Questions

01. Ericsson cycle consists of two constant pressure and two isothermal processes.

02. When a pattern is made in three parts, the bottom part is known as a cope.

03. For maximum discharge through a chimney, the temperature of flue gases inside the chimney should the slightly more than the atmospheric temperature.

04. The internal flue tubes of a Lancashire boiler are reduced in diameter at the back to provide access to the lower part of the boiler.

05. In hot machining, solid carbide tools are preferred over high speed steel tools.

06. A dummy activity becomes a critical activity when its earliest start time (EST) is same as its latest finishing time (LFT).

07. Supercharging _________ the power developed by the engine.

08. In a mixed flow reaction turbine, the flow of water is partly radial and partly axial.

09. Sulphur dioxide is extremely toxic and non-flammable.

10. Martensite has needle like structure and is magnetic.

11. In jet propulsion power unit, the inlet duct of diverging shape is used for converting kinetic energy of air into pressure energy.

12. The transfer of heat from one body to another takes place only when there is a temperature difference between the bodies.

13. A Pelton wheel with one nozzle is preferred for a specific speed between 35 to 60 r.p.m.

14. An atom bomb utilises uncontrolled nuclear fission.

15. In time study, normal time is more than the standard time.

16. A dense structure of a grinding wheel is denoted by the number 9 to 15 or higher.

17. The drawing down is a process of ________ the cross-section of a bar.

18. The isothermal and isentropic processes are reversible non-flow processes.

19. In a fire tube boiler, the water is contained inside the tubes which are surrounded by flames and hot gases from outside.

20. The compressor efficiency is defined as the ratio of volume of free air delivery per stroke to the swept volume of the piston.

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