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.Management Sciences
Category: Mechanical Engineering Mcqs
The sense of Corioli’s component is such that it_________________?
A. leads the sliding velocity vector by 90°
B. lags the sliding velocity vector by 90°
C. is along the sliding velocity vector
D. leads the sliding velocity vector by 180°
E. none of the above
In triggering fission, the following types of neutrons are desirable_________________?
A. fast moving
B. slow moving
C. critical neutrons
D. neutrons at rest
E. none of the above
The efficiency of I.C. engines normally is of the order of_________________?
A. 15-20%
B. 20-25%
C. 25-30%
D. 30-35%
E. 35-50%
Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between_________________?
A. lift and resultant force
B. drag and resultant force
C. lift and tangential force
D. lift and drag
E. resultant force and tangential force
The fuel consumption in gas turbines is accounted for by___________________?
A. low.er heating value
B. higher heating value
C. heating value
D. higher calorific value
E. highest calorific value
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are__________________?
A. path functions
B. point functions
C. cyclic functions
D. real functions
E. thermodynamic functions
During the opening of a valve in a pipe line, the flow is_________________?
A. steady
B. unsteady
C. uniform
D. laminar
E. free vortex type
Film boling occurs at _______________________?
A. very low pressure
B. atmospheric pressures
C. medium pressures
D. very high pressures
E. none of the above
The coefficient of friction depends on________________?
A. area of contact
B. shape of surfaces
C. strength of surfaces
D. nature of surface
E. all of the above
In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be____________________?
A. increase key length
B. increase key depth
C. increase key width
D. double all the dimensions
E. none of the above
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