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.Management Sciences
Category: Mechanical Engineering Mcqs
In V-belt drive, belt touches______________?
A. at bottom
B. at sides only
C. both at bottom and sides
D. could touch anywhere
E. none of the above
Slack of various events on the critical path in PERT/CPM chart___________________?
A. increases continuously
B. decreases continuously
C. remains constant
D. may increase or decrease depending on various factors
E. unpredictable
The Scott-Russell mechanism consists of_________________?
A. sliding and turning pairs
B. sliding and rotary pairs
C. turning and rotary pairs
D. sliding pairs only
E. turning pairs only
Piston rings are plated with chromium,cadmium or phosphate in order to__________________?
A. reduce cost
B. improve surface finish
C. prevent clogging
D. reduce wear and eliminate scuffing
E. improve heat transfer
Choose the wrong statement ?
A. The center of buoyancy is located at the center of gravity of the displaced liquid
B. For stability of a submerged body, the center of gravity of body must lie directly below the center of buoyancy
C. If e.g. and center of buoyancy coincide, the submerged body must lie at neutral equilibrium for all positions
D. For stability of floating cylinders or spheres, the e.g. of body must lie below the center of buoyancy
E. All floating bodies are stable
Which of the following varieties of coals is mostly used in steam boilers____________________?
A. non-coking bituminous coal
B. brown coal
C. peat
D. coking bituminous coal
E. none of the above
An engineer’s hammer is made of___________________?
A. cast iron
B. forged steel
C. mild steel
D. high carbon steel
E. H.S.S
Separators in compressor installations are located_____________________?
A. before intercooler
B. after intercooler
C. after receiver
D. between after-cooler and air receiver
E. before suction
According to Avogadro’s law, for a given pressure and temperature, each molecule of a gas_________________?
A. occupies volume proportional to its molecular weight
B. occupies volume proportional to its specific weight
C. occupies volume inversely proportional to its molecular weight
D. occupies volume inversely proportional to its specific weight
E. occupies same volume
Bell metal contains_____________________?
A. 70% copper and 30% zinc
B. 90% copper and 10% tin
C. 85-92% copper and rest tin with little lead and nickel
D. 70-75% copper and rest tin
E. 70-75% copper and rest zinc and tin
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