Multistage compression of air as compared to single stage compression offers the advantage of

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Multistage compression of air as compared to single stage compression offers the advantage of

A. Power saving per unit weight of air delivered

B. Moisture elimination in the inter-stage cooler

C. Increased volumetric efficiency

D. All (A), (B) & (C)

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In chemical dehumidification process

A. Wet bulb temperature increases

B. Dry bulb temperature remains constant

C. Dew point temperature increases

D. Dry bulb temperature increases

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Window panes of aeroplanes are normally made of

A. Perspex (PMMA)

B. Teflon (PTFE)

C. Bakelite (phenol formaldehyde)

D. Polystyrene

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The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

A. 3171P_a

B. 3567P_a

C. 1.01 × 10⁵P_a

D. 5000P_a

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The swift cup test evaluates the following property of a sheet metal.

A. Stretchability

B. Drawability

C. Bendability

D. None of these

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Suitability of steel for its use in cable is judged by its strength in

A. Tension

B. Compression

C. Torsion

D. Shear

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Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

A. Pure oxygen has been used for combustion

B. Nitrogen percentage in the fuel is very high

C. Excess air has been used for combustion

D. Hydrogen is not present in the fuel

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Chromium molybdenum steel cannot be welded using __________ welding.

A. Thermit

B. Electrical resistance

C. Oxy-acetylene

D. Any of these

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Steel is welded using the __________ flame.

A. Carburising

B. Neutral

C. Oxidising

D. All (A), (B) & (C)

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__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

A. Stellite

B. High speed steel

C. Cermet

D. Alnico

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Which of the following is preferred for riveting?

A. Lap joint

B. Butt joint

C. Either (A) or (B)

D. Neither (A) nor (B)

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Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v²)] (V - b) = RT, depends upon its

A. Pressure & temperature

B. Pressure & specific volume

C. Temperature & specific volume

D. Temperature only

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A spring material should have low

A. Elastic limit

B. Deflection value

C. Fatigue resistance

D. None of these

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Which of the following materials has the maximum shrinkage allowance?

A. Brass

B. Cast iron

C. Lead

D. Aluminium alloy

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The main reducing agent in iron blast furnace is

A. Carbon dioxide

B. Carbon monoxide

C. Oxygen

D. Air

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Which of the following equipments is used for liquid dispersion?

A. Packed column

B. Venturi scrubber

C. Bubble cap plate column

D. Wetted wall column

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Out of the following, the alloy which has equal percentage of constituents, is

A. White metal

B. Gun metal

C. Duralumin

D. Constantan

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Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

A. +4000

B. -4000

C. 10000

D. -10000

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Material of construction of foundry crucible is

A. Lead

B. Stainless steel

C. Graphite

D. Cast iron

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Function of fusible plug in a boiler is to

A. Drain out water and sludge from the boiler during repair

B. Put off fire in the furnace when water level in the boiler falls to unsafe limit

C. Guard the boiler in case of abnormal rise in steam pressure

D. All (A), (B) & (C)

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The leaching solvent used in Baeyer's process for the purification of bauxite is

A. Ammonium hydroxide

B. Sodium carbonate

C. Sodium hydroxide

D. Ammonium carbonate

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For separating small pieces of metal from engine oil of a car, the best separating technique is the

A. Chromatography

B. Evaporation

C. Filtration

D. Fractional distillation

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For efficient performance of a blast furnace, the extent of reduction of Wustite (F_eO) should be

A. 100% indirect reduction

B. 100% direct reduction

C. 50-60% indirect reduction

D. 30-40% indirect reduction

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The hardenability of steel decreases with

A. Decrease in dislocation density

B. Increase in solutionising temperature

C. Increase in strength

D. Decrease in grain size

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Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

A. Grashoff number

B. Grashoff number & Reynolds number

C. Reynolds number

D. Grashoff number & Prandtl number

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Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

A. 1.5

B. 3

C. 5

D. 7

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Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.

A. Forging

B. Cold rolling

C. Hot rolling

D. Casting

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Use of water as a manometric liquid suffers from the disadvantage of its

A. Low vapour pressure

B. Corrosive nature

C. High vapour pressure

D. High boiling point

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In Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, = velocity gradient).

A.

B.

C.

D.

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Cupola produces __________ iron.

A. Pig

B. Cast

C. Wrought

D. Carbon free

Discuss this answer

In a good rimming steel

A. Carbon and silicon should be low

B. Silicon should be low but carbon should be high

C. Both silicon & carbon should be high

D. Silicon should be high but carbon should be low

Discuss this answer

Accepted Answer

D. All (A), (B) & (C)

Multistage compression of air as compared to single stage compression offers the advantage of

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

In chemical dehumidification process

Window panes of aeroplanes are normally made of

The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

The swift cup test evaluates the following property of a sheet metal.

Suitability of steel for its use in cable is judged by its strength in

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

Chromium molybdenum steel cannot be welded using __________ welding.

Steel is welded using the __________ flame.

__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

Which of the following is preferred for riveting?

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v²)] (V - b) = RT, depends upon its

A spring material should have low

Which of the following materials has the maximum shrinkage allowance?

The main reducing agent in iron blast furnace is

Which of the following equipments is used for liquid dispersion?

Out of the following, the alloy which has equal percentage of constituents, is

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

Material of construction of foundry crucible is

Function of fusible plug in a boiler is to

The leaching solvent used in Baeyer's process for the purification of bauxite is

For separating small pieces of metal from engine oil of a car, the best separating technique is the

For efficient performance of a blast furnace, the extent of reduction of Wustite (F_eO) should be

The hardenability of steel decreases with

Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.

Use of water as a manometric liquid suffers from the disadvantage of its

In Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, = velocity gradient).

Cupola produces __________ iron.

In a good rimming steel

Also checkout

Multistage compression of air as compared to single stage compression offers the advantage of

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

In chemical dehumidification process

Window panes of aeroplanes are normally made of

The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

The swift cup test evaluates the following property of a sheet metal.

Suitability of steel for its use in cable is judged by its strength in

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO2 = 12%, O2 = 8%, CO = nil, N2 = 80%. This flue gas composition indicates that

Chromium molybdenum steel cannot be welded using __________ welding.

Steel is welded using the __________ flame.

__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

Which of the following is preferred for riveting?

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v2)] (V - b) = RT, depends upon its

A spring material should have low

Which of the following materials has the maximum shrinkage allowance?

The main reducing agent in iron blast furnace is

Which of the following equipments is used for liquid dispersion?

Out of the following, the alloy which has equal percentage of constituents, is

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

Material of construction of foundry crucible is

Function of fusible plug in a boiler is to

The leaching solvent used in Baeyer's process for the purification of bauxite is

For separating small pieces of metal from engine oil of a car, the best separating technique is the

For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be

The hardenability of steel decreases with

Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.

Use of water as a manometric liquid suffers from the disadvantage of its

In Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, = velocity gradient).

Cupola produces __________ iron.

In a good rimming steel

Also checkout

The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v²)] (V - b) = RT, depends upon its

For efficient performance of a blast furnace, the extent of reduction of Wustite (F_eO) should be