Thermosetting resins are those polymers, which__________________?
(A) Do not increase in plasticity with rise in temperature
(B) Allow slip to occur between molecules
(C) Do not take on a permanent set
(D) None of these
Dies for wire drawing are generally made of__________________?
(A) Mild steel
(B) Stainless steel
(C) Carbides
(D) High carbon steel
Pick the odd man out of the following?
(A) Calorising
(B) Pack carburising
(C) Nitriding
(D) Cyaniding
A material no longer behaves elastically beyond_________________?
(A) Plastic limit
(B) Limiting load
(C) Elastic limit
(D) Breaking load
Glass lined vessels are not used for handling__________________?
(A) Dilute H2SO4
(B) Dilute HNO3
(C) Dilute HCI
(D) Hydrofluoric acid
Materials having _____________ lattice structure are usually most ductile?
(A) FCC
(B) BCC
(C) HCP
(D) Cubic
____________ alloys have the highest specific strength of all the structural materials out of the following?
(A) Magnetic steel
(B) Titanium
(C) Chromium
(D) Magnesium
A material capable of undergoing large permanent deformation, when subjected to compression is termed as___________________?
(A) Malleable
(B) Ductile
(C) Brittle
(D) None of these
The behaviour of visco-elastic material is time dependent. This behaviour is common in _____________ materials?
(A) Non-crystalline solid
(B) Crystalline
(C) Rubbery
(D) Non-crystalline organic polymeric