The fine grained steel
A.Are brittle
B.Are lighter
C.Are doctile
D.Have more tendency to distort
E.None of the above
Category: Engineering Materials Mcqs
Phenol and formaldehyde are polymerised to a resultant product known as
A.PVC
B.Bakelite
C.Polyester
D.None of the above
Which of the following ray has least wavelength?
A.Cosmic rays
B.X-rays
C.Ultraviolet rays
D.Infra-red rays
E.Yellow light rays
Case hardening
A.Is done to induce hardness in the core of materials
B.Is followed by tempering
C.Is preceded by tempering
D.Is allowed by carburizing
E.Is done to get a soft ductile interior with a very hard surface
The process of polymerisation is associated with
A.Cast iron
B.High speed steel
C.Non-ferrous material
D.Non-metallic materials
E.Thermo-plastic
Micro-structure of a material is generally examined by
A.Naked eye
B.Microscope
C.Optical microscope
D.X-rays and electron diffraction
E.Spectroscope techniques
The main alloy for corrosion resistance in stainless steel is
A.Carbon
B.Manganese
C.Chromium
D.Cobalt
E.Vanadium
Which of the following is the ductile material?
A.Silver
B.Brass
C.Stainless steel
D.Zinc
E.Aluminium
Cast iron containing 6.6% carbon is
A.Black in colour containing only pearlite
B.Black in colour containing only ferrite
C.Gray in colour containing pearite and ferrite only
D.Whitish containing cementite only
E.None of the above
