A. Rubber lined steel

B. Stainless steel

C. Lead lined steel

A. Above the highest

B. Between the second & third

C. Between the first & second

B. Chromium

C. Tungsten

D. Nickel

A. Hypochlorous acid

C. Chlorinated brine

D. Caustic soda

A. Pressure adjustment

C. Temperature control

D. Measurement of flue gas volume

A. Alum

B. Ferrous sulphate

D. Sulphuric acid

A. 65

B. 99

D. 50

A. Do not require heat treatment for any of its applications

B. Do not have good resilience properties

C. Is tempered at 850C

A. The form drag is dependent upon the occurrence of a wake

B. Existence of the boundary layer in fluid flow is because of viscosity of the fluid.

D. The shear stress at any given cross-section of a pipe for steady flow (either laminar or turbulent) varies linearly as the radial distance

A. Coke ovens

B. None of these

C. Open hearth furnace

A. Low carbon steel

C. White cast iron

D. Mild steel

A. Calcining

B. Smelting

C. Roasting

A. Surface area & emissivity of the stock

B. Properties of the muffle wall (temperature, area, and emissivity)

D. Neither A. nor B.

A. Vanadium

B. Chromium

D. Nickel

A. Plastics

B. Fibres

C. Elastomers

B. Should be 1:1 for a batch type furnace

C. Should be as low as possible i.e., 1 : 2

D. Is normally much more for a continuous furnace as compared to a batch furnace

A. Coils

B. Sheets

C. Slabs

A. Minimum heat input rate only

B. Maximum heat input rate only

D. Volume of the combustion chamber

A. Low emissivity

B. High thermal conductivity

D. Neither A. nor B.

A. Shrinkage

B. Tensile strength

C. Melting point

A. < 8

B. < 5

D. < 10

A. Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced

B. None of these

D. The fan operates hot and hence blades are liable to corrosion and erosion

A. H2

C. High CO/CO2

D. CO

A. Preheating the primary air

B. Transportation of coal

C. Drying of coal

A. Hardening makes the steel more brittle

B. High alloy steels contain more than 50% alloying element

C. 18/8 stainless steel is a magnetic steel

A. Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at

B. h temperature

D. Causing metal embrittlement

E. Accelerating the rate of scaling

B. 1050

C. 1250

D. 350

A. 20

B. 60

D. 40

B. Its ability to be cast, rolled, forged & stamped

C. High strength and corrosion & oxidation-resistance at elevated temperature

D. Low temperature strength properties

A. A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocity

B. Laminar flow of viscous liquids is involved in the lubrication of various types of bearings

C. tribution</strong>

D. Rise of water in capillary tubes reduces with the increasing diameter of capillary tubes

A. Hammer

B. Weight on hammer

D. Workpiece

A. 1 to 15

C. 0 to 10

D. 1 to 8

A. Carburising

B. Cyaniding

C. Nitriding

B. Cast iron

C. Concrete

D. Nickel

B. The eddy viscosity is a function of the type of turbulence involved

C. The viscosity of a liquid increases with decrease in temperature

D. The viscosity of gas increases with increase in temperature

A. Iron

C. Calcium

D. Silver

A. ghness & Reynolds number

C. Greater is the kinematic viscosity of the liquid, greater is the thickness of the boundary layer

D. Fanning friction factor in case of turbulent flow of liquids in pipe depends upon relative

E. Blowers develop a maximum pressure of 2 atmospheres

A. 24

B. 12

C. 30

A. None of these

B. Annealing

D. Normalising

A. Magnesium

B. Nickel

D. Aluminium

A. Surface area & emissivity of the stock

B. Properties of the muffle wall (temperature, area, and emissivity)

D. Neither A. nor B.

B. For reducing spalling tendency, the refractory should be well fired and its porosity should be

C. Refractoriness under load (RUL) of a refractory is always less than its refractoriness

D. The electrical resistivity of refractories drops rapidly with rise in temperature

E. e

B. Brittle

C. Ductile

D. Malleable

A. Carbon steel

B. Stainless steel type 304

D. Nickel

A. ocity at a point

B. A hydrometer used for the determination of specific gravities of liquids works on the principle

C. buoyant forces

E. Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive

F. Turbulent fluid flow is characterised by the rapid fluctuation of instantaneous pressure &

A. eamline spacing varies inversely as the velocity

B. It is a line across which there is no flow and it is equivalent to a rigid boundary

C. The fluid lying between any two streamlines can be considered to be in isolation and the

E. Streamlines intersect at isolated point of zero velocity and infinite velocity

A. 85

B. 70

C. 15

B. Ton stock/hr

C. Ton stock/m2 hearth area

D. Both B. and C.

A. Inconel

C. Hastelloy

D. Nimonic alloys

A. Wrought iron

B. Mild steel

D. Low carbon steel