nickel and copper
nickel and chromium
nickel, chromium and iron
copper and chromium
✅ The correct answer is option A.
Engineering Materials MCQs
112. The charge of the blast furnace consists of
calcined ore (8 parts ), coke (4 parts) and limestone (1 part)
calcined ore (4 parts), coke (1 part) and limestone (8 parts)
calcined ore (1 part), coke (8 part) and limestone (4 parts)
calcined ore, coke and
✅ The correct answer is option A.
113. The machinability of aluminium increases when __________ is added to aluminium.
copper
magnesium
silicon
lead and bismuth
✅ The correct answer is option D.
114. Micro-structure of a material is, generally, examined by
naked eye
optical microscope
X-ray techniques
none of these
✅ The correct answer is option D.
115. Manganese bronze has
good wearing qualities and high elasticity
high yield point, high fatigue limit and excellent cold and hot corrosion resistance
high resistance to corrosion
valuable cold working
✅ The correct answer is option C.
116. In corrosion resistant properties, bronzes are __________ to brasses.
superior
inferior
✅ The correct answer is option A.
117. Polyvinylchloride (PVC) is a __________ material.
thermoplastic
thermosetting
✅ The correct answer is option A.
118. According to Indian standard specifications, cast iron designated by ‘FG 150’ means
white cast iron with B.H.N. 150
white cast iron with 150 MPa as minimum compressive strength
grey cast iron with B.H.N. 150
grey cast iron with 15
✅ The correct answer is option D.
119. Cast iron is used in those parts which are subjected to shocks.
Correct
Incorrect
✅ The correct answer is option B.
120. The malleability is the property of a material due to which it can be rolled or hammered into thin sheets.
Agree
Disagree
✅ The correct answer is option A.