A. aluminium
B. tin
C. zinc
D. lead
E. silver
Related Mcqs:
- Structural steel contains following principal alloying elements__________________?
A. nickel, chromium and manganese
B. tungsten, molybdenum and phosphorous
C. lead, tin, aluminium
D. zinc, sulphur, and chromium
E. none of the above - Elinvar, an alloy used in precision instruments, hair springs for watches, etc. contains the following element as principal alloying element__________________?
A. iron
B. copper
C. aluminium
D. zinc
E. nickel - Malleability of a material can be defined as ______________________?
A. ability to undergo large permanent deformations in compression
B. ability to recover its original form
C. ability to undergo large permanent deformations in tension
D. all of the above
E. none of the above - The ability of a material to resist softening at high temperature is known as____________________?
A. creep
B. hot tempering
C. hot hardness
D. fatigue
E. superhardening - A material is known as allotropic or polymorphic if it __________________?
A. has a fixed structure under all conditions
B. exists in several crystal forms at different temperatures
C. responds to heat treatment
D. has its atoms distributed in a random pattern
E. none of the above - Which of the following is the binding material in cemented carbides___________________?
A. cobalt
B. nickel
C. vanadium
D. iron
E. carbon - An example of amorphous material is____________?
A. zinc
B. lead
C. silver
D. glass
E. brass - Amorphous material is one___________________?
A. in which atoms align themselves in a geometric pattern upon solidification
B. in which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid
C. which is not attacked by phosphorous
D. which emits fumes on melting
E. none of the above - Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is__________________?
A. silver metal
B. duralumin
C. Hastelloy
D. monel metal
E. invar - In compression, a prism of brittle material will break________________?
A. by forming a bulge (l>) by shearing along oblique plane
B. in direction perpendicular to application of load
C. by crushing into thousands of pieces
D. none of the above
