A. Electrical industry

B. Utensil manufacture

C. Alloying

A. Flue gas temperature

B. Emissivity of refractory walls

D. Initial temperature of the charged stock

A. Preheating the fuel gas

B. Oxygen enrichment of combustion air

D. Preheating the combustion air

B. Sintering furnace

C. None of these

D. High pressure boiler

A. Thermoplastic materials

B. None of these

D. Nickel

A. In laminar flow, Newtons law of viscosity does not apply

C. A free vortex occurs, when fluid rotates as a solid

D. In turbulent flow, there are neither cross-currents nor eddies

A. Electricity

B. Blast furnace gas/mixed gas

C. Coke oven gas

B. Walking beam reheating furnace

C. Tunnel kiln

D. Tower furnace

A. 15-Oct

C. 45-50

D. 65-70

A. In furnaces, operating below 750C

B. To increase heat transfer by convection

D. To ensure uniform temperature

A. Calcium carbide

C. High alumina bricks

D. Fireclay bricks

A. Used as a cathodic material

B. Not resistant to corrosion

C. scraper buildings</strong>

E. Not used as pigment (in its compound forms) for paints

A. Natural draft furnace

B. Batch furnace

D. Tunnel Kiln

A. Preheating the fuel gas

C. Oxygen enrichment of combustion air

D. Preheating the combustion air

A. None of these

B. Cold work tool steel

D. High speed steel

A. Cutting ability

B. All A., B. and C.

D. Wear resistance

A. Ammonia (both aqueous & anhydrous)

C. Nitric acid & hydrochloric acid (concentrated)

D. Sulphuric acid (concentrated)

A. None of these

C. Low frequency induction

D. Resistance

A. Elimination of cold spot at the bottom of the charge

B. Protection of the periphery of the charge from excessive radiation

C. Reduction in the temperature of furnace gases

A. Preheating of combustion air

C. Preheating of cold stock

D. Steam generation in waste heat boilers

A. None of these

B. Throughout the converging portion of the tube, the density increases in the downstream

D. ection

E. The value of Mach number is always unity at the throat

A. Spheroidal grey cast iron contains graphite flakes

C. Wrought iron contains about 0.02% carbon

D. The chilled cast iron does not contain graphite

B. High ductility

C. Very high tensile strength

D. High malleability

A. Martenistic

B. None of these

C. Ferritic

A. orientation of Venturimeter

B. Discharge of fluid through a Venturimeter depends upon the gage difference irrespective of

C. Venturimeter incurs less power loss compared to an equivalent orificemeter

D. For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that

F. ving the Venturimeter

B. Is the removal of carbon from iron carbide (Fe3C)

C. Affects its crystalline structure

D. Is favoured by CO2

A. 2000

B. 3000

C. 6000

A. Ostwald chart

B. Cox chart

D. None of these

A. Calcination kiln

B. Sintering furnace

C. Open hearth furnace

A. Tungsten

B. High speed

D. Molybdenum

B. Ductility

C. Resistance to brittleness

D. Shock resistance

B. Economiser

C. Steam superheater

D. Air preheater

A. Reheating furnace

B. Rotary kiln

C. Muffle furnace

A. Soaking pit

B. Calcination kiln

D. L.D. converter

A. Radiation

B. None of these

C. Convection

A. None of these

B. Is indicated by flame sting out

C. Increases the flue gas temperature

A. Shaft furnace

B. Muffle furnace

D. Rotary hearth furnace

A. Fluorite

B. Quartz

D. Feldspar

A. In the equation, T. gc = k. (du/dy)n the value of n for pseudoplastic and Dilatant fluid are 1 respectively

B. Shear stress for Newtonian fluid is proportional to the rate of shear in the direction perpendicular to motion

D. The shear stress at the pipe (dia = D, length = L) wall in case of laminar flow of Newtonian fluids is (D/4L). ?p

A. Hastelloy

B. Duriron

D. Inconel

A. Hood annealing furnace

B. Muffle furnace

D. Neither A. nor B.

A. Sidefired

B. Covered

C. Recirculating

A. Melting

B. Roasting

C. Reheating

A. tically downward through it, than when the flow is vertically upward

B. A Venturimeter with a given gage difference discharges at a greater rate, when the flow is

C. h the same throat dia is used

E. For a given pressure difference, the discharge of gas is greater through a Venturimeter, when

F. The overall pressure loss is the same in a given pipe line, whether a Venturimeter or a nozzle

A. Cast iron

B. Stainless steel

C. Steel

A. Hot rolled

B. Chrome carbon

D. Stainless

A. Weight heated/furnace volume

C. None of these

D. Weight heated/hr

B. Quantity & temperature of waste gas

C. Corrosive nature of the waste gas

D. All A., B. and C.

A. Are of smaller size

B. All A., B. and C.

C. Are less costly

A. Combination of induced current and skin effect

B. None of these

C. Electric arc struck between electrodes and the charge