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.Management Sciences
Category: Mechanical Engineering Mcqs
The process of diffusion of one liquid into the other through a semi-permeable membrane is called_______________________?
A. viscosity
B. osmosis
C. surface tension
D. cohesion
E. diffusivity
With increase in load, radiant super heater has____________________?
A. drooping characteristic
B. lihear characterisstic
C. rising characteristic
D. flat characteristic
E. none of the above
The time required to complete a task is established and a bonus is paid to the worker for every hour he saves from the established time required. This type of incentive plan is known as_________________?
A. Rowan Plan
B. Bedaux Plan
C. Taylor Differential Piece rate system
D. Halsey Premium plan
E. Day work plan
The efficiency of a centrifugal pump is maximum when its blades are__________________?
A. straight
B. bent forward
C. bent backward
D. bent forward first and then backward
E. bent backward first and then forward
Thermal conductivity of solid metals with rise in temperature normally___________________?
A. increases
B. decreases
C. remains constant
D. may increase or decrease depending on temperature
E. unpredictable
Cetane___________________?
A. has zero cetane number
B. has 100 cetane number
C. helps detonation
D. is a straight chain paraffin
E. determines the efficiency of an I.C. engine
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant_________________?
A. decreases
B. increases
C. remains same
D. depends on other factors
E. none of the above
Three different weights fall from a certain height under vacuum. They will take______________?
A. same time to reach earth
B. times proportional to weight to reach earth
C. times inversely proportional to weight to reach earth
D. unpredictable
E. none of the above
The center of gravity of a triangle lies at the point of __________________?
A. concurrence of the medians
B. intersection of its altitudes
C. intersection of bisector of angles
D. intersection of diagonals
E. all of the above
The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is_________________?
A. same
B. more
C. less
D. more or less depending on ambient conditions
E. unpredictable
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