Category: Mechanical Engineering Mcqs

Micro motion study is__________________?

Production Technology 14/09/2024
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A. analysis of a man-work method by using a motion picture camera with a timing device in the field of view
B. motion study* observed on enhanced time intervals
C. motion study of a sequence of operations conducted systematically
D. study of man and machine conducted simultaneously
E. scientific, analytically procedure for determining optimum work method

In open combustion chamber in diesel engines____________________?

I.C. Engines 11/09/2024
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A. the shape and layout of the piston crown, the inlet port, and the valve produce the turbulent effect on fuel mixture
B. fuel is injected into an auxiliary chamber that is separated from the cylinder by an orifice or throat
C. only a part of air charge is contained in an auxiliary chamber in which the fuel starts to burn with insufficient air which due to explosion tendency mixes thoroughly into main cylinder charge
D. fuel is injected at atmospheric pres¬sure
E. there are no valves.