Steel may be manufactured by
A.Bessemer process
B.Open hearth process
C.Cementation process
D.Duplex process
E.Any of the above
Category: Mechanical Engineering Mcqs
As a result of blade friction, the outlet relative velocity of impulse turbine compared to inlet relative velocity is
A.Nearly same
B.2% less
C.10% – 15% less
D.30% less
E.50% less
The power requirement in case of a screw conveyor depends on
A.material to be handled
B.rate of transportation
C.length of conveyor
D.all of the above
In thermodynamic analysis, a pure substance is that which
A.consists of only a single chemical species
B.May have a number of chemical species that the composition remains constant
C.has no dissolved impurities
D.behaves as perfect gas
Hindustan Copper Limited has main plant in Khetri which is in the state of
A.Rajasthan
B.J & K
C.Haryana
D.Punjab
One of the objects of annealing is
A.To soften the metal
B.to improve machinability
C.To refine grain structure
D.To refine internal stresses
E.All above
1 m of water column is equivalent to
A.0.1 kN/m2
B.1.0 kN/m2
C.10 kN/m2
D.100 kN/m2
E.1000 kN/m2
Gamma iron exists at temperatures in the range
A.Room temperature and lower critical temperature
B.Between 500?C and 850?C
C.Between 900?C and 1400?C
D.Between 1400?C and 1600?C
E.Above 1600?C
The amount of energy expended by the action of external force in deforming an elastic body is known as
A.Elastic energy
B.Deformation energy
C.Work done
D.Potential energy
E.Strain energy
The contraction allowance for pattern depends on
A.composition of the metal
B.method of moulding used
C.pouring temperature
D.all of the above
