A. Gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt

B. Mg, Zn, Ti, Zr, Br, Cd

C. A iron (below 910°C and between 1400 to 1539°C), W

D. All of the above

A. Copper

B. Chromium

C. Nickel

D. Silicon

A. B.C.C. crystalline structure

B. F.C.C. crystal structure

C. H.C.P. structure

D. A complex cubic structure

A. Pig iron

B. Cast iron

C. Wrought iron

D. Steel

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

A. Hearth

B. Stack

C. Bosh

D. Throat

A. Amount of carbon it contains

B. The shape and distribution of the carbides in iron

C. Method of fabrication

D. Contents of alloying elements

A. Brass

B. Bronze

C. Gun metal

D. Muntz metal

A. Nickel and copper

B. Nickel and chromium

C. Nickel, Chromium and iron

D. Copper and chromium

A. Nickel

B. Chromium

C. Nickel and chromium

D. Sulphur, lead and phosphorus

A. Carbon

B. Sulphur

C. Silicon

D. Manganese

A. Calcined ore (8 parts), coke (4 parts) and limestone (1 part)

B. Calcined ore (4 parts), coke (1 part) and limestone (8 parts)

C. Calcined ore (1 part), coke (8 parts) and limestone (4 parts)

D. Calcined ore, coke and limestone all in equal parts

A. 63 to 67% nickel and 30% copper

B. 88% copper, 10% tin and rest zinc

C. Alloy of tin, lead and cadmium

D. Iron scrap and zinc

A. Kind of stainless steel

B. None ferrous alloy

C. Polymer

D. Nickel and iron alloy having high permeability

A. Can be drawn into wires

B. Breaks with little permanent distortion

C. Can cut another metal

D. Can be rolled or hammered into thin sheets

A. Carbon in the form of free graphite

B. High tensile strength

C. Low compressive strength

D. All of these

A. Babbitt metal

B. Monel metal

C. Nichrome

D. Phosphor bronze

A. Vanadium 4%, chromium 18% and tungsten 1%

B. Vanadium 1%, chromium 4% and tungsten 18%

C. Vanadium 18%, chromium 1% and tungsten 4%

D. None of the above

A. Made by adding carbon in steel

B. Refined from cast iron

C. An alloy of iron and carbon with varying quantities of phosphorus and sulphur

D. Extensively used for making cutting tools

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 - 75% copper and rest tin

A. Hardening surface of work-piece to obtain hard and wear resistant surface

B. Heating and cooling rapidly

C. Increasing hardness throughout

D. Inducing hardness by continuous process

A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe

B. 92.5% aluminium, 40% copper, 2% nickel, and 1.5% Mg

C. 10% aluminium and 90% copper

D. 90% magnesium and 9% aluminium with some copper

A. Cold rolled steel

B. Hot rolled steel

C. Forged steel

D. Cast steel

A. Decreases as the carbon content in steel increases

B. Increases as the carbon content in steel increases

C. Is same for all steels

D. Depends upon the rate of heating

A. Line defect

B. Surface defect

C. Point defect

D. None of these

A. Bessemer process

B. Open hearth process

C. Electric process

D. LD process

A. Cast iron

B. Pig iron

C. Wrought iron

D. Malleable iron

A. There is no change in grain size

B. The average grain size is a minimum

C. The grain size increases very rapidly

D. The grain size first increases and then decreases very rapidly

A. Modulus of elasticity is fairly low

B. Wear resistance is very good

C. Fatigue strength is not high

D. Creep strength limits its use to fairly low temperatures

A. Controls the grade of pig iron

B. Acts as an iron bearing mineral

C. Supplies heat to reduce ore and melt the iron

D. Forms a slag by combining with impurities

A. Silicon bronze

B. Aluminium bronze

C. Gun metal

D. Babbitt metal