The fatigue limit of a shaft connot be increased by
A.Under stressing
B.Surface decarburisation
C.Shot peening
D.Nitriding of the surface
E.Cold working
Category: Mechanical Engineering Mcqs
Nodular iron has low
A.Machinability
B.Tensile strength
C.Fluidity
D.Melting point
A consultant is usually compensated by way of
A.salary
B.perks
C.dividend
D.fee
In order to engage securely and prevent dragging the clearance between release bearing and release collar in a clutch is usually
A.2 – 3 mm
B.10 – 15 mm
C.20 – 25 mm
D.30 – 35 mm
E.40 – 50 mm
An isentropic process is always
A.Irreversible and adiabatic
B.Reversible and isothermal
C.Frictionless and irreversible
D.Reversible and adiabatic
E.None of the above
A spark voltage needs a voltage of
A.12 V
B.24 V
C.220 V
D.440 V
E.5000 – 15000 V.
In a lathe gear box if first four consecutive speed are 19, 30, 47, 74 rpm, the next speed would be
A.93 rpm
B.104 rpm
C.101 rpm
D.111 rpm
E.116 rpm
The overload capacity of a diesel engine is around
A.1 percent
B.10 percent
C.25 percent
D.50 percent
An isolated system
A.Is a specified regon where transfers of energy and/or mass takes place
B.Is a region of constant mass and only energy is allowed to cross the boundaries
C.Cannot transfer either energy or mass to or from the surroundings
D.Is one in which mass within the system is not necessarily constant
E.None of the above
The performance of a company can be judged by its
A.Share capital
B.total production
C.number of employees
D.profits
