A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
B. 92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg
C. 90% aluminium and 90% copper
D. 90% magnesium and 9% aluminium with some copper
E. 90% magnesium and 10% tin
Related Mcqs:
- Steel contains____________________?
A. 80% or more iron
B. 50% or more iron
C. alloying elements like chromium, tungsten nickel and copper
D. elements like phosphorus, sulphur and silicon in varying quantities
E. high quantities of sulphur - The hardness of steel increases if it contains____________________?
A. austenite
B. martensite
C. pearlite
D. cementite
E. all of the above - Phosphor bronze contains____________________?
A. 0.5% of phosphorous
B. 1% phosphorous
C. 2.5% phosphorous
D. 5% phosphorous
E. none of the above - By severely deforming a metal in a particular direction it becomes _________________?
A. ductile
B. malleable
C. homogeneous
D. isotropic
E. anisotropic - Basic constituents of Monel metal are _________________?
A. nickel, copper
B. nickel, molybdenum
C. zinc, tin, lead
D. nickel, lead and tin
E. none of the above - The number of electrons in 1 cm3 of metal would be of the order of_______________?
A. 1010
B. TO16
C. 1022
D. 1040
E. 1052 - Gun metal contains__________________?
A. 70% copper and 30% zinc
B. 90% copper and 10% tin
C. 85-92% copper and rest tin with little lead and nickel
D. 70-78% copper and rest tin
E. 85-92% copper and rest zinc - The correct composition of Babbit metal is__________________?
A. 87.75% Sn, 4% Cu, 8% Sb, 0.25% Bi
B. 90% Sn, 2% Cu, 4% Sb, 2% Bi, 2% Mg
C. 87% Sn, 4% Cu, 8% Sb, 1% Al
D. 82% Sn, 4% Cu, 8% Sb, 3% Al, 3% Mg
E. none of the above - Babbit metal is a_________________?
A. lead base alloy
B. tin base alloy
C. copper base alloy
D. all of the above
E. A. and C. above - Muntz metal contains copper and zinc in the ratio of________________?
A. 50 : 50
B. 40 : 60
C. 60 : 40
D. 20 : 80
E. 80 : 20
