The activity of pure hydrogen gas at 1000°C and 5 atm pressure

Question

The activity of pure hydrogen gas at 1000°C and 5 atm pressure

A. Is always less than 1

B. Is always greater than 1

C. Can be 5

D. Depends on the choice of the standard state

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__________ is not a heat treatment process.

A. Cyaniding

B. Parkerizing

C. Austempering

D. Martempering

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Plants produce carbohydrates from the CO2 present in the atmosphere by

A. Polymerisation

B. Photochemical reaction

C. Oxidation

D. None of these

Discuss this answer

The rolling process cannot be used to produce

A. Plates

B. Rods

C. Tubes

D. Wires

Discuss this answer

Pick out the wrong conversion of absolute & kinematic viscosities.

A. 1 stoke = 1 cm²/sec

B. 1 N.sec/m² = 10 paise

C. 1 stoke = 1 m²/sec

D. 1 m²/sec = 10⁴ stokes

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The burnout heat flux in the nucleate boiling regime is not a function of the

A. Liquid density

B. Vapour density

C. Temperature difference

D. Heat of evaporation

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The elastic strain in copper is due to the

A. Motion of dislocations

B. Stretching of atomic bonds

C. Breakage of atomic bonds

D. None of the above

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Fire in fuel gas pipelines is extinguished most effectively by

A. Spraying water

B. Blanketting the area with nitrogen atmosphere

C. Fire fighting foam

D. None of these

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Magnetic permeability of iron is increased by its

A. Decarburising

B. Alloying with cobalt

C. Purification

D. Alternate heating & cooling

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Out of the following __________ iron has the best capability to bear sudden & excessive shocks.

A. White

B. Cast

C. Wrought

D. Pig

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Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.

A. Creep

B. Fatigue

C. Endurance

D. Tensile

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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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With decrease in the grain size of a material, its creep resistance

A. Increases

B. Decreases

C. Remain constant

D. Either (A) or (B); depends on the material

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The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the

A. Work hardening

B. Bauschinger effect

C. Creeping effect

D. Stress recovery effect

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The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the

A. Critical point

B. Curie temperature

C. Inversion temperature

D. Eutectic temperature

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Liquor poisoning generally occurs due to the presence of __________ in it.

A. Ethyl alcohol

B. Impurities

C. Methyl alcohol

D. Carbonic acid

Discuss this answer

Hot working of lead is carried out at

A. 75°C

B. 373°K

C. 150°C

D. Room temperature

Discuss this answer

Annealing of cast iron

A. Softens it to facilitate machining

B. Decreases the free carbon

C. Increases the strength

D. None of these

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Dielectric

A. Is an electrical insulating material

B. Of low resistivity is preferred

C. Should have high thermal conductivity

D. Need not defy the corrosive action of chemicals

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Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented by

A.

B.

C.

D.

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Lead is poured into the joints between two __________ pipes.

A. Cast iron

B. Steel

C. Concrete

D. Plastic

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One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

A. 100

B. 900

C. 9000

D. 10000

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Which of the following phenomenon will exhibit the minimum heat transfer?

A. Boiling

B. Forced convection in air

C. Free convection in air

D. Conduction in air

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Hot extrusion of aluminium is done in the temperature range of __________ °C.

A. 550-600

B. 450-500

C. 350-400

D. 250-300

Discuss this answer

For dynamic strain measurement, the Wheatstone bridge used is of __________ type.

A. Voltage sensitive null

B. Voltage sensitive deflected

C. Current sensitive deflected

D. None of these

Discuss this answer

Temper brittleness of a material can be fairly detected by the __________ test.

A. Fatigue

B. Notched bar impact

C. Tensile

D. Hardness

Discuss this answer

Air-petrol ratio for maximum power generation in spark ignition engine is about

A. 6 : 1

B. 12 : 1

C. 18 : 1

D. 24 : 1

Discuss this answer

Thermal conductivity of a material does not depend upon its

A. Mass

B. Volume

C. Surface area

D. All 'a', 'b' & 'c'

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A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C.

A. 370

B. 340

C. 320

D. 300

Discuss this answer

__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

A. Borosilicate

B. High silica

C. Supermax

D. Lead

Discuss this answer

Closeness of packing is maximum in case of __________ crystal lattice.

A. Face centred

B. Simple cubic

C. Body centred

D. None of these

Discuss this answer

Accepted Answer

D. Depends on the choice of the standard state

The activity of pure hydrogen gas at 1000°C and 5 atm pressure

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

__________ is not a heat treatment process.

Plants produce carbohydrates from the CO2 present in the atmosphere by

The rolling process cannot be used to produce

Pick out the wrong conversion of absolute & kinematic viscosities.

The burnout heat flux in the nucleate boiling regime is not a function of the

The elastic strain in copper is due to the

Fire in fuel gas pipelines is extinguished most effectively by

Magnetic permeability of iron is increased by its

Out of the following __________ iron has the best capability to bear sudden & excessive shocks.

Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.

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

With decrease in the grain size of a material, its creep resistance

The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the

The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the

Liquor poisoning generally occurs due to the presence of __________ in it.

Hot working of lead is carried out at

Annealing of cast iron

Dielectric

Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented by

Lead is poured into the joints between two __________ pipes.

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

Which of the following phenomenon will exhibit the minimum heat transfer?

Hot extrusion of aluminium is done in the temperature range of __________ °C.

For dynamic strain measurement, the Wheatstone bridge used is of __________ type.

Temper brittleness of a material can be fairly detected by the __________ test.

Air-petrol ratio for maximum power generation in spark ignition engine is about

Thermal conductivity of a material does not depend upon its

A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C.

__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

Closeness of packing is maximum in case of __________ crystal lattice.

Also checkout

The activity of pure hydrogen gas at 1000°C and 5 atm pressure

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

__________ is not a heat treatment process.

Plants produce carbohydrates from the CO2 present in the atmosphere by

The rolling process cannot be used to produce

Pick out the wrong conversion of absolute & kinematic viscosities.

The burnout heat flux in the nucleate boiling regime is not a function of the

The elastic strain in copper is due to the

Fire in fuel gas pipelines is extinguished most effectively by

Magnetic permeability of iron is increased by its

Out of the following __________ iron has the best capability to bear sudden & excessive shocks.

Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.

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

With decrease in the grain size of a material, its creep resistance

The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the

The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the

Liquor poisoning generally occurs due to the presence of __________ in it.

Hot working of lead is carried out at

Annealing of cast iron

Dielectric

Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented by

Lead is poured into the joints between two __________ pipes.

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m- 1. k-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

Which of the following phenomenon will exhibit the minimum heat transfer?

Hot extrusion of aluminium is done in the temperature range of __________ °C.

For dynamic strain measurement, the Wheatstone bridge used is of __________ type.

Temper brittleness of a material can be fairly detected by the __________ test.

Air-petrol ratio for maximum power generation in spark ignition engine is about

Thermal conductivity of a material does not depend upon its

A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C.

__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

Closeness of packing is maximum in case of __________ crystal lattice.

Also checkout

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is