A. body centred cubic a-iron and face centred cubic a-iron

B. alpha iron, beta iron and gamma iron

C. none of the above

D. alpha iron and beta iron

A. normalising

C. tempering

D. hot working

E. special heat treatment

A. refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties

B. improves cutting ability and reduces hardenability

D. makes steel hard

E. gives ductility, toughness, tensile strength and anticorrosion properties

A. improving the resilience and ductility

B. raising the elastic limit

C. providing high strength at elevated temperatures

E. providing corrosion resistance

A. above recrystallization temperature

B. 1050C

C. below recrystallisation temperature

E. 910C

A. copper base alloy

C. tin base alloy

D. all of the above

E. lead base alloy

A. viscosity

B. atmospheric pressure

C. none of the above

E. air resistance

B. none of the above.

C. all of the above

D. intermetallic compounds

E. substitutional solution

A. refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties

B. improves wear resistance, cutting ability and toughness

C. none of the above

E. improves cutting ability and reduces hardenability

A. none of the above

C. one of the best known age and precipitation-hardening systems

D. improving machinability

E. improvement of corrosion resistance

B. at e.g. of body

C. at metacentre

D. at center of pressure

E. vertically downwards

A. 0.30%

B. 0.05%

C. 0.7%.

E. 0.50%

A. all non-ferrous materials

B. none of the above

C. high speed steel

E. all of the above

A. high quantities of sulphur

C. elements like phosphorus, sulphur and silicon in varying quantities

D. 80% or more iron

E. alloying elements like chromium, tungsten nickel and copper

B. carbon

C. sulphur

D. phosphorous

E. manganese

A. iron scrap

C. raw material for blast furnace

D. iron containing huge quantities of carbon

E. iron in molten form in the ladles

A. homogeneous

C. malleable

D. ductile

E. isotropic

A. malleable

B. ductile

D. tough

E. soft

A. the points where major changes take place

B. the points where no further change oc-curs

D. constant for all metals

E. the points where there is no further flow of metal

A. difference of pressure between two points

B. velocity

D. very low pressure

E. atmospheric pressure

B. improvement of corrosion resistance

C. none of the above

D. improvement of casting characteristics

E. one of the best known age and precipitation-hardening systems

B. Pascal law

C. Bernoullis theorem

D. boundary layer theory

E. Newtons law of viscosity

A. zinc, sulphur, and chromium

B. none of the above

D. lead, tin, aluminium

E. tungsten, molybdenum and phosphorous

A. wrought iron, grey cast iron, low carbon steel

B. wrought iron,low carbon steel, grey cast iron

C. low carbon steel, grey cast iron, wrought iron

D. grey cast iron, wrought iron, low carbon steel

A. unpredictable

B. perpendicular to lines of slag distribution

D. uniform in all directions

E. none of the above

A. modulus of elasticity is fairly low

C. fatigue strength is not high

D. creep strength limits its use to fairly low temperatures

E. corrosion resistance is good

A. below 0.5%

B. below 1%

C. above 2.2%

D. nil

A. cohesion

B. viscosity

C. adhesion

E. elasticity

A. irrespective of the motion of one fluid layer relative to an adjacent layer

B. only when the fluid is incompressible and has zero viscosity

D. in case of an ideal fluid

E. only when the fluid is frictionless

A. 1052

B. 1010

C. TO16

E. 1040

A. the nature of the liquid and the solid

B. the material which exists above the free surface of the liquid

D. any one of the above

E. none of die above

A. venturi

B. orifice plate

D. nozzle

E. rotameter

A. 0.02%

B. 0.63%

D. 0.30%

E. 1.2%.

B. nickel, chromium

C. nickel, copper

D. nickel, lead

E. nickel, zinc

A. mild steel

B. forged steel

C. H.S.S

D. cast iron

A. MlLt

B. MlL r2

D. MlL2T2

E. MlLTx

A. invar

C. magnin

D. elinvar

E. peiminvar

A. specific density

B. none of the above

C. specific mass

D. specific weight

A. above melting point

B. between 910C and 1400C

C. room temperature

D. none of the above

A. 70-75% copper and rest tin

B. 85-92% copper and rest tin with little lead and nickel

C. 70% copper and 30% zinc

E. 90% copper and 10% zinc

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

B. none of the above

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

D. all of the above

A. carbon

B. vanadium

D. nickel

E. iron

A. H.C.P.

C. none of the above

D. B.C.C.

E. Orthorhombic crystalline structure

A. dynamicviscosity x density

B. density/dynamic viscosity

D. 1/dynamicviscosity x density

E. same as dynamic viscosity

A. malleable iron

B. pig iron

C. wrought iron

E. white iron

B. orthorhombic crystalline structure

C. a complex cubic structure

D. B.C.C. crystalline structure

E. H.C.P. structure

A. 90% copper and 10% tin

B. 85-92% copper and rest zinc

D. 70-78% copper and rest tin

E. 70% copper and 30% zinc

B. none of the above

C. sink to bottom

D. partly immersed

E. float over fluid

A. 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg

B. 10% aluminium and 90% tin

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

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

B. lead and copper

C. tin, antimony, copper

D. lead and zinc

E. tin and lead