Electrometallurgy is not involved in the extraction of __________ from its ore.

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Electrometallurgy is not involved in the extraction of __________ from its ore.

A. Aluminium

B. Tin

C. Lead

D. Both (B) & (C)

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__________ is the most important element, which controls the physical properties of steel.

A. Manganese

B. Silicon

C. Carbon

D. Vanadium

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Cementite is in the lamellar form in the __________ phase of steel.

A. Martenistic

B. Bainitic

C. Pearlitic

D. Ferritic

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Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

A. Small punches, broaches reamers and springs

B. Cutlery, screws, rivets and files

C. Mandrels, twist drills, small lathe tools and razors

D. Forgings like can shaft, structural steel plate, threading dies and drawing dies

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In multipass welds, shot peening is done after each pass to

A. Close the surface porosity

B. Break the continuity of columnar grains

C. Flatten the weldment

D. Introduce texture in the weld

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Preheating before welding is done to

A. Make the plate softer

B. Burn oil & grease sticking to plate surfaces

C. Avoid plate distortion

D. Prevent cold cracks

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Which one of the following is incombustible?

A. H2

B. CCl4

C. C2H2

D. S

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A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.

A. Lack of free

B. Excess of

C. Decrease in

D. None of these

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Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

A. X-rays

B. γ-rays

C. α-rays

D. β-rays

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The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

A. Same

B. Slightly less

C. Slightly more

D. Much more

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Transformer cores are normally made from

A. Soft ferrites

B. High purity iron

C. Grain oriented Fe-Si alloy

D. Al-Ni-Co alloy

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Triple point of water is

A. 0°F

B. 492°R

C. 0°K

D. -273°C

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Tesla metre per ampere (T. m/A) is the unit for the measurement of

A. Magnetic susceptibility

B. Magnetic moment

C. Permeability of free space

D. Flux density

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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

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Air intake for an air compressor should be preferably taken from

A. A site, where cooling towers are located nearby

B. A site, where open coal yard in located nearby

C. An air conditioned room maintained at a temperature of 18°C

D. An outside atmosphere at 10°C

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__________ are normally subjected to sub-zero treatment.

A. Highly stressed parts

B. Gauges or precision parts

C. Cold rolled sheets

D. Non machinable materials

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Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore?

A. High fusibility & fluidity

B. High thermal conductivity

C. Low density

D. High chemical activity

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With increase in steam pressure, its specific volume decreases

A. Rapidly first and then slowly

B. Linearly

C. Slowly first and then rapidly

D. Exponentially

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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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The most abundant metal present in the earth's crust is;

A. Iron

B. Copper

C. Titanium

D. Aluminium

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A material being tested for endurance strength is subjected to the __________ load.

A. Impact

B. Completely reversed

C. Dynamic

D. Static & dynamic

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Lead is added to 60:40 brass primarily to improve

A. Machinability

B. Corrosion resistance

C. Fluidity

D. Strength

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Cemented carbide tools are not suitable for cutting

A. Aluminium

B. Brass

C. Cast iron

D. Steel

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Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

A. Annealing

B. Toughening

C. Work hardening

D. Tempering

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Drills are usually made of

A. Cermets

B. High speed steel

C. Alloy steel

D. Tungsten carbide

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Notched bar test is used for testing the __________ of a material.

A. Impact strength

B. Endurance limit

C. Machinability

D. Corrosion resistance

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Constituents of stellite are

A. Zinc, copper & nickel

B. Cobalt, chromium & tungsten

C. Zinc, aluminium & nickel

D. Nickel, cobalt & vanadium

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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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__________ property of a material is determined by the Herbert Pendulum device.

A. Hardness

B. Tensile

C. Toughness

D. Compressive

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M10 index of coke indicates its

A. Compressive strength

B. Hardness

C. Abrasion resistance

D. Impact strength

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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

Discuss this answer

Accepted Answer

D. Both (B) & (C)

Electrometallurgy is not involved in the extraction of __________ from its ore.

Correct Answer :

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Related Questions

__________ is the most important element, which controls the physical properties of steel.

Cementite is in the lamellar form in the __________ phase of steel.

Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

In multipass welds, shot peening is done after each pass to

Preheating before welding is done to

Which one of the following is incombustible?

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

Transformer cores are normally made from

Triple point of water is

Tesla metre per ampere (T. m/A) is the unit for the measurement of

Plants produce carbohydrates from the CO2 present in the atmosphere by

Air intake for an air compressor should be preferably taken from

__________ are normally subjected to sub-zero treatment.

Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore?

With increase in steam pressure, its specific volume decreases

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

The most abundant metal present in the earth's crust is;

A material being tested for endurance strength is subjected to the __________ load.

Lead is added to 60:40 brass primarily to improve

Cemented carbide tools are not suitable for cutting

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

Drills are usually made of

Notched bar test is used for testing the __________ of a material.

Constituents of stellite are

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

__________ property of a material is determined by the Herbert Pendulum device.

M10 index of coke indicates its

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

Also checkout

Electrometallurgy is not involved in the extraction of __________ from its ore.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

__________ is the most important element, which controls the physical properties of steel.

Cementite is in the lamellar form in the __________ phase of steel.

Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

In multipass welds, shot peening is done after each pass to

Preheating before welding is done to

Which one of the following is incombustible?

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

The delivery pressure of boiler feed water pump compared to the boiler steam pressure is

Transformer cores are normally made from

Triple point of water is

Tesla metre per ampere (T. m/A) is the unit for the measurement of

Plants produce carbohydrates from the CO2 present in the atmosphere by

Air intake for an air compressor should be preferably taken from

__________ are normally subjected to sub-zero treatment.

Which of the following is an undesirable property of slag produced during the Pyrometallurgical method of metal extraction from its ore?

With increase in steam pressure, its specific volume decreases

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

The most abundant metal present in the earth's crust is;

A material being tested for endurance strength is subjected to the __________ load.

Lead is added to 60:40 brass primarily to improve

Cemented carbide tools are not suitable for cutting

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

Drills are usually made of

Notched bar test is used for testing the __________ of a material.

Constituents of stellite are

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

__________ property of a material is determined by the Herbert Pendulum device.

M10 index of coke indicates its

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

Also checkout

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