Which one is different from the other in press work?
A.Blanking
B.Punching
C.Perforating
D.Slitting
E.Seaming
Category: Engineering Materials Mcqs
Electronic structure of a material is generally studied by
A.Naked eye
B.Microscope
C.X-ray and electron diffraction
D.Spectroscope techniques
E.Mossbauer studies
An elastic behaviour of materials is expressed in terms of
A.Stress strain curve
B.Relaxation time
C.Adiabatic time
D.Isothermal time
E.Hysteresis loop area
According to Hooke’s law
A.Stress is proportional to strain
B.Stress/strain is constant
C.Average stress is proportional to average strain
D.Within elastic limits average stress is proportional to average strain
E.None of the above
Process of making a thin phosphate coating on steel to act as a base or primer for enamels and paints in known as
A.Prepainting
B.Surface preparing
C.Parkerizing
D.Anodising
E.Colourizing
The common household glass is
A.Soda lime glass
B.Borosilicate glass
C.High silica glass
D.Lead glass
In which of the following case creep is an important consideration?
A.Exhaust valve of a diesel engine
B.Blades of a steam turbine
C.Flywheel of a petrol engine
D.Piston of an air compressor
E.Shaft of a centrifugal compressor
Which of the following is not a semi-conductor?
A.Silicon
B.Tetraethyl lead
C.Gallium Arsenide
D.Germanium
E.All of the above
Machinability of a metal depends on
A.Tensile strength
B.Hardness
C.Toughness
D.(A) and (B) above
E.(B) and (C) above
If a material has similar properties throughout its volume, it is said to be
A.Isotropic
B.Isentropic
C.Continuous
D.Uniform
E.Homogeneous
