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
Category: Engineering Materials Mcqs
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
Standards used in USSR are known as
A.GOST
B.UNI
C.JIS
D.AENOR
E.CSN
A surface damage which results when two surfaces in contact experience light periodic relative motion is
A.Fretting
B.Pitting
C.Corrosion
D.Surface wear
E.None of the above
