__________ iron is produced by the annealing of white cast iron.

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__________ iron is produced by the annealing of white cast iron.

A. Malleable

B. Nodular

C. Ductile

D. Grey

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Brinell Hardness Number (BHN) for talc is approximately in the range of

A. 1-5

B. 20-30

C. 100-150

D. 200-250

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Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot

A. Piercing

B. Spinning

C. Drawing

D. Extrusion

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Which of the following contributes maximum as main source of sulphur in the blast furnace charge?

A. Sinter

B. Coke

C. Iron ore

D. Limestone

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A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

A. √(Particle diameter)

B. Particle diameter

C. (Particle diameter)²

D. (Particle diameter)³

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Recrystallisation temperature of steel is __________ °C.

A. 50

B. 300

C. 500

D. 800

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Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

A. Vickers hardness test

B. Shore scleroscope test

C. Brinell hardness test

D. Rockwell hardness test

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Limestone is added in the blast furnace (during pig iron manufacture) to

A. Form slag by combining with impurities

B. Supply heat by undergoing exothermic reaction with impurities

C. Reduce the coke consumption

D. Reduce slag viscosity

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In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

A. μ , α and θ all have units of m/s

B. μ , α and θ all have units of m2/s

C. α and θ have units of m2/s, while μ has unit of m/s

D. α and θ have units of m/s, while μ has unit of m2/s

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In connection with corrosion of metals, passivation is the process that

A. Intensifies deterioration

B. Changes the composition of the metal

C. Inhibits further deterioration

D. None of these

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Wood is a/an __________ material.

A. Amorphous

B. Cellular

C. Homogeneous

D. Granular

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Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

A. Scratch

B. Indentation

C. Dynamic

D. Rebound

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The Al₂O₃ content of cryolite in Hall- Heroult cell is maintained between __________ percent.

A. 2-5

B. 18-20

C. 12-15

D. 6-12

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Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

A. Wet bulb

B. Dry bulb

C. Saturation

D. Dew point

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Compressed dry air is used as the cutting fluid, while machining

A. Steel

B. Cast iron

C. Aluminium

D. None of these

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Projection welding & stud welding is categorised as the __________ welding.

A. Pressure

B. Thermit

C. Resistance

D. Arc

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A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

A. 150

B. 200

C. 300

D. 400

Discuss this answer

Boiler tube size is specified by its thickness and __________ diameter.

A. Outside

B. Inside

C. Mean

D. None of these

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Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

A. 1

B. 10

C. 30

D. 50

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Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

A. Manganese

B. Phosphorous

C. Magnesium

D. Chromium

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Inertial forces are obtained, when the elastic forces are multiplied by __________ number.

A. Mach

B. Froude

C. Reynolds

D. Euler

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More than 95% of __________ is present in corundum.

A. SiO₂

B. Al₂O₃

C. CaSiO₂

D. MgO

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__________ wire is never used for making the heating element.

A. Nichrome

B. Kanthal

C. Invar

D. None of these

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A compact estimate about the amount of materials handling between various work stations is obtained from the

A. Gantt chart

B. Bin chart

C. String diagram

D. Travel chart

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The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

A. Wetness

B. Mass flow rate

C. Both 'a' & 'b'

D. Neither 'a' nor 'b'

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Hot & cold working of material causes its __________ deformation.

A. Visco-elastic

B. Isotropic

C. Elastic

D. Plastic

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Main constituent of bone ash is

A. Ammonium phosphate

B. Calcium phosphate

C. Animal charcoal

D. Ammonium sulphate

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In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is

A. More

B. Less

C. Equal

D. Much more

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Plastics as a material of construction suffer from the drawback of low

A. Machinability

B. Density

C. Strength

D. Plastic deformation

Discuss this answer

Which of the following heat treatment processes is usually applied to castings?

A. Tempering

B. Annealing

C. Normalising

D. Carburising

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

Discuss this answer

Accepted Answer

A. Malleable

__________ iron is produced by the annealing of white cast iron.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Brinell Hardness Number (BHN) for talc is approximately in the range of

Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot

Which of the following contributes maximum as main source of sulphur in the blast furnace charge?

A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

Recrystallisation temperature of steel is __________ °C.

Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

Limestone is added in the blast furnace (during pig iron manufacture) to

In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

In connection with corrosion of metals, passivation is the process that

Wood is a/an __________ material.

Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

The Al₂O₃ content of cryolite in Hall- Heroult cell is maintained between __________ percent.

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

Compressed dry air is used as the cutting fluid, while machining

Projection welding & stud welding is categorised as the __________ welding.

A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

Boiler tube size is specified by its thickness and __________ diameter.

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

Inertial forces are obtained, when the elastic forces are multiplied by __________ number.

More than 95% of __________ is present in corundum.

__________ wire is never used for making the heating element.

A compact estimate about the amount of materials handling between various work stations is obtained from the

The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

Hot & cold working of material causes its __________ deformation.

Main constituent of bone ash is

In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is

Plastics as a material of construction suffer from the drawback of low

Which of the following heat treatment processes is usually applied to castings?

Annealing of cast iron

Also checkout

__________ iron is produced by the annealing of white cast iron.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Brinell Hardness Number (BHN) for talc is approximately in the range of

Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot

Which of the following contributes maximum as main source of sulphur in the blast furnace charge?

A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

Recrystallisation temperature of steel is __________ °C.

Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

Limestone is added in the blast furnace (during pig iron manufacture) to

In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

In connection with corrosion of metals, passivation is the process that

Wood is a/an __________ material.

Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

The Al2O3 content of cryolite in Hall- Heroult cell is maintained between __________ percent.

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

Compressed dry air is used as the cutting fluid, while machining

Projection welding & stud welding is categorised as the __________ welding.

A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

Boiler tube size is specified by its thickness and __________ diameter.

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

Inertial forces are obtained, when the elastic forces are multiplied by __________ number.

More than 95% of __________ is present in corundum.

__________ wire is never used for making the heating element.

A compact estimate about the amount of materials handling between various work stations is obtained from the

The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

Hot & cold working of material causes its __________ deformation.

Main constituent of bone ash is

In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is

Plastics as a material of construction suffer from the drawback of low

Which of the following heat treatment processes is usually applied to castings?

Annealing of cast iron

Also checkout

The Al₂O₃ content of cryolite in Hall- Heroult cell is maintained between __________ percent.