A. Minimise the fluctuation in discharge

B. Remove the contaminant present in the liquid

D. Control the liquid discharge

A. Slide gate in teeming laddies

B. Continuous casting systems

D. Neither A. nor B.

A. Outer diameter only

C. Inner diameter

D. Thickness only

A. 0.1

B. 0.55

C. 1.85

A. A storage device and a control valve

B. Two pistons and two cylinders

C. A storage tank and a ram pump

A. 0.66

B. 0.5

C. < 0.5

A. 4.33 psi, 10 ft. of water, 20.7 inches of Hg

B. 10 psi, 19.7 ft. of water, 5.3 inches of Hg

C. 10 psi, 19.7 ft. of water, 23.3 inches of Hg

B. Rough and smooth pipes have the same friction factor

C. Laminar film covers the roughness projections

D. Friction factor depends upon NRe only

B. Constant

C. All A., B. and C.

D. Affected by the fluid flow pressure

A. As the square of the diameter

B. Inversely as the pressure drop

C. Inversely as the viscosity

A. file at the wall are more</strong>

B. Velocity profile becomes flatter and flatter with increasing Reynolds number

C. Mean flow velocity is about 0.5 times the maximum velocity

E. Point of maximum instability exists at a distance of 2r/3 from the pipe wall (r = pipe radius)

A. None of these

B. Fluid on the solid in a direction opposite to flow

D. Solid on the fluid

A. Elevation along vertical direction

C. Radial distance linearly

D. Inverse of the radial distance

A. Specific heat

B. Density

C. None of these

A. Sillimanite

C. Silicon carbide bricks

D. Firebricks

B. Reynold

C. Mach

D. Froude

A. 58

C. 8

D. 44

B. Booster service

C. Pumping industrial wastes

D. Pumping liquid fertilisers (e.g. liquid NH3)

A. Kozeny-Carman

B. Hagen-Poiseuilles

D. Levas

A. Have extremely low thermal & electrical conductivities

B. Do not resist temperature fluctuations

C. Do not burn/oxidise, when exposed to air on heating

A. Altitude

B. None of these

D. Diameter

A. Has high resistance to basic slags

B. Which is expensive & radioactive, is used in crucibles for melting high purity metals

C. Has high fusion temperature (> 3000C) but poor resistance to thermal shock

A. Basic

C. None of these

D. Lime

A. 2000

B. 3000

D. 1000

A. Obtaining monolithic working faces

B. Repairing construction of various furnace parts

D. Neither A. nor B.

B. Piston

C. Centrifugal

D. Vane

A. None of these

B. Fireclay

C. Silica

A. Logarithmic

C. Hyperbolic

D. Linear

A. None of these

B. Mortars

C. Cements

A. Geometrical similarity only

B. Dynamic similarity only

C. Both geometrical and dynamic similarity

A. 0.1

B. 0.3

C. 0.01

A. Unloads a pump

B. Provides back pressure for a cylinder

D. None of these

A. Is independent of its porosity and is maximum for insulating bricks

B. Decreases with decreases in porosity

C. Increases with the amount of air entrapped in pores

A. 1 10-3 to 2 10-3 kg/m.s

C. 1 to 2 kg/m.s

D. 0.5 to 1 kg/m.s

A. Black

B. Yellow

C. None of these

A. Momentum

C. Energy

D. Both B. & C.

A. Open hearth furnace

B. Electric furnace walls

C. Burning zone of cement kilns

A. Resistance to CO attack

C. RUL

D. Modulus of rupture

A. Very high temperatures are involved

C. Presence of iron or silica is harmful

D. Highly reducing conditions are involved

A. 1/(y/3)

B. 3y/4

D. 1/(y/4)

A. Fireclay

C. Corundum

D. Siliceous fireclay

A. Same in both the tubes

B. Greater in 1 mm dia tube

D. Zero in both the tubes

A. Increase

C. Remain same

D. Data insufficient to predict

A. Less than

B. None of these

D. Same as

A. High frequency induction furnaces in the form of inductors

C. Making sheaths for thermocouple

D. Lining high temperature ceramic kilns

B. 500

C. 1000

D. >2000

A. Elevation

C. Both A. & B.

D. Neither A. nor B.

A. V-0.2

B. V1.8

C. V2.7

B. Borides

C. Nitrides

D. Carbides

A. Attack by basic slag

B. Abrasion

C. Disintegration on sudden change of temperature