The accuracy depends upon
A.Precision of instrument
B.Precision of method
C.Good planning
D.All of the above
E.None of the above
Category: Mechanical Engineering Mcqs
The mass production generally refers to
A.Large scale production
B.Flow production
C.Machine production
D.Computerized production
E.None of the above
In isentropic flow, the temperature
A.Cannot exceed the reservoir temperature
B.Cannot drop and then increase again downstream
C.Is independent of Mach number
D.Is a function of Mach number only
E.Remains constant in a duct flow
The effect of austenitic grain size development during heat treatment is
A.lower hardenability
B.greater toughness
C.lower internal stress
D.All of the above
Economiser in the boiler heats the
A.Steam
B.Air
C.Feed water
D.Coal
Bearings used on railway wagons are
A.plumber blocks
B.needle bearings
C.roller bearings
D.ball bearings
The loss of strength in compression with simultaneous gain in strength in tension due to overloading is known as_____________?
A. Hysteresis
B. Inelasticity
C. Creep
D. Bauschinger effect
E. Visco-elasticity
For a reversible adiabatic process the change in entropy is
A.Zero
B.Minimum
C.Maximum
D.Infinite
E.Unity
The behaviour of which of the following vapour is closer to that of a gas?
A.Wet vapour
B.Dry vapour
C.Superheated vapour
D.Wet and dry vapour
E.Wet and superheated vapours
Induction hardening is the process of
A.Hardening the core
B.Uniform hardening
C.Selective hardening
D.Hardening surface for wear resistance
E.Electrical hardening process
