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.Management Sciences
Category: Mechanical Engineering Mcqs
The direction of Corioli’s component of acceleration is the direction _____________________?
A. of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link
B. along the centripetal acceleration
C. along tangential acceleration
D. along perpendicular to angular velocity
E. none of the above.
In gas turbines^ high thermal efficiency is obtained in_________________?
A. closed cycle
B. open cycle
C. both of the above
D. closed/open depending on other con-siderations
E. unpredictable
Ultimate analysis of fuel is determination of percentage of____________________?
A. carbon, hydrogen, nitrogen, sulphur, moisture
B. fixed carbon, ash, volatile matter, moisture
C. higher calorific value
B. lower calorific value
E. best analysis
Heating of dry steam above saturation temperature is known as_____________________?
A. enthalpy
B. superheating
C. supersaturation
D. latent heat
E. super tempering
The unique property of cast iron is its high ___________________?
A. malleability
B. ductility
C. surface finish
D. damping characteristics
E. hardness
Steam in water tube boiler as compared to fire tube boiler_________________?
A. can be raised rapidly
B. is raisd at slower rate
C. is raised at same rate
D. could be raised at fast/slow rate depending on design
E. none of the above is true
Which of the following is expected to have highest thermal conductivity_______________?
A. steam
B. solid ice
C. melting ice
D. water
E. boiling water
For burning 1 kg of carbon to CO as per chemically correct combusiton, amount of air required is___________________?
A. 1 kg
B. 4/3kg
C. 8/3kg
D. 2 kg
E. 16/3 kg
The assumption in PERT is__________________?
A. a project will always be behind schedule, if left uncorrected
B. cost of project will always be more than the estimated cost, if no timely corrections are taken
C. a project can be subdivided into a set of predictable, independent activities
D. activities are fixed and can’t be changed ,
E. commissioning time can be changed, if activities are behind schedule
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