A. Iron
B. Silver
C. Calcium
D. Aluminium
Related Mcqs:
- The formation of oxide film on a metal due to atmospheric exposure reduces its____________?
A. Toughness
B. Stiffness
C. Creep limit
D. All A., B. & C. - In cold working of metal as compared to its hot working____________________?
A. Cracks and blow holes are eliminated
B. Ductility and impact strength improves
C. Appreciable strain hardening is produced
D. Yield stress, hardness and fatigue strength is not at all affected - The increase in hardness of metal due to its cold working is termed as the _______________ hardening?
A. Work
B. Age
C. Induction
D. Flame - Gun metal is an alloy of_________________________?
A. Nickel, tin and copper
B. Copper, tin and zinc
C. Copper, phosphorus and nickel
D. Manganese, phosphorus and nickel - Which of the following is a low melting point metal ?
A. Stainless steel
B. Wrought iron
C. Tin
D. Copper - Monel metal is an alloy of__________________?
A. Molybdenum and nickel
B. Nickel and copper
C. Molybdenum and aluminium
D. Molybdenum and zinc - Mercury is transported in metal containers made of________________?
A. Aluminium
B. Iron
C. Lead
D. Nickel - Babbitt metal used for bearings is a ____________base alloy?
A. Tin
B. Lead
C. Aluminium
D. Copper - Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals) ?
A. Invar
B. Constantan
C. Chromel
D. Alumel - Babbitt metal (used for making bearings) comprises of__________________?
A. Mainly tin (85%) and lead
B. Saw dust and iron dust mixture
C. Zinc and aluminium
D. Copper and aluminium
