Chlorine acts as a bleaching agent only in the presence of

Question

Chlorine acts as a bleaching agent only in the presence of

A. Dry air

B. Pure oxygen

C. Moisture

D. Sunlight

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Force between the molecules of the same substance is called __________ force.

A. Adhesive

B. Cohesive

C. Molecular

D. Vander Walls

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Titanium is produced by __________ of Ti Cl₄.

A. Electrolytic reduction

B. Calcium reduction

C. Magnesium reduction

D. Thermal dissociation

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Starting friction is low in case of the __________ lubrication.

A. Boundary

B. Hydrodynamic

C. Hydrostatic

D. Mixed/semi-fluid

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Increase in the entropy of a system represents the

A. Degradation of energy

B. Decrease in system pressure

C. Increase in the availability of energy

D. Increase in the temperature

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Silicon crystal can be converted to p-type semiconductor by doping with

A. Phosphorous

B. Nitrogen

C. Carbon

D. Boron

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Evaporative cooling process employs a combination of cooling and humidification in which the

A. Sensible heat is added

B. Sensible heat is removed and the latent heat is added

C. Latent heat is removed

D. Sensible heat is added and latent heat is removed

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Globular form of cementite is formed during the __________ process.

A. Spheroidising

B. Hardening

C. Annealing

D. Normalising

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The majority charge carriers in p-type silicon are

A. Free electrons

B. Ions

C. Conduction electrons

D. Holes

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Which of the following is not categorised as the ore agglomeration process?

A. Nodulising

B. Pelletising

C. Balling

D. Briquetting

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In case of compression of one kg of air, the work done will be the least, when the value of polytropic index 'n' is

A. 1

B. 1.4

C. 1.5

D. Y = C_p/C_v

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With increase in temperature, the surface tension of water

A. Increases

B. Decreases

C. Remain constant

D. Increases linearly

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The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

A. Resilience

B. Toughness

C. Ductility

D. Impact strength

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Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.

A. 10

B. 20

C. 30

D. 40

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Blast furnace slag is mainly molten

A. Sand

B. Magnesium silicate

C. Calcium silicate

D. Iron pyrite

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

A. Fatigue

B. Notched bar impact

C. Tensile

D. Hardness

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Water flow in the river during flood can be categorised as the __________ flow.

A. Unsteady uniform

B. Unsteady non-uniform

C. Steady uniform

D. Steady non-uniform

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The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K)

A. T

B. 1/T

C. T²

D. 1/T²

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__________ is the hardest material out of the following.

A. Boron carbide

B. Tungsten carbide

C. Hardened steel

D. Silicon carbide

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Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?

A. Nitrogen oxides

B. Hydrocarbons

C. Both 'a' & 'b'

D. Carbon monoxide

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In case of simple harmonic motion, displacement is proportional to the

A. Velocity

B. Acceleration

C. Both (A) & (B)

D. Neither (A) nor (B)

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Steel & cast iron pipes are produced by __________ casting.

A. Slush

B. Die

C. Investment

D. True centrifugal

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The highest stress that a material can withstand for a specified length of time without excessive deformation is called the __________ strength.

A. Creep

B. Endurance

C. Fatigue

D. None of these

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Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.

A. Grey

B. Black

C. Opaque

D. White

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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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Spark plug is provided in a/an

A. Engine having carburettor

B. Diesel engine

C. Compression ignition engine

D. Both (B) & (C)

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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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Coating provided on the electrodes used in the arc welding is not expected to

A. Add alloying elements

B. Prevent electrode from contamination

C. Stabilise the arc

D. Provide protective atmosphere to weld

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Addition of silicon to cast iron

A. Promotes graphite module formation

B. Improves its ductility

C. Does not promote graphite flakes formation

D. Increases the fluidity of molten metal

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Yield strength of a material is determined by the __________ test.

A. Creep

B. Tension

C. Compression

D. Endurance

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Common salt is produced from sea water in India generally by the __________ method.

A. Freeze drying

B. Solar evaporation

C. Electrolytic

D. None of these

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Accepted Answer

C. Moisture

Chlorine acts as a bleaching agent only in the presence of

Correct Answer :

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Related Questions

Force between the molecules of the same substance is called __________ force.

Titanium is produced by __________ of Ti Cl₄.

Starting friction is low in case of the __________ lubrication.

Increase in the entropy of a system represents the

Silicon crystal can be converted to p-type semiconductor by doping with

Evaporative cooling process employs a combination of cooling and humidification in which the

Globular form of cementite is formed during the __________ process.

The majority charge carriers in p-type silicon are

Which of the following is not categorised as the ore agglomeration process?

In case of compression of one kg of air, the work done will be the least, when the value of polytropic index 'n' is

With increase in temperature, the surface tension of water

The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.

Blast furnace slag is mainly molten

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

Water flow in the river during flood can be categorised as the __________ flow.

The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K)

__________ is the hardest material out of the following.

Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?

In case of simple harmonic motion, displacement is proportional to the

Steel & cast iron pipes are produced by __________ casting.

The highest stress that a material can withstand for a specified length of time without excessive deformation is called the __________ strength.

Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.

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

Spark plug is provided in a/an

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

Coating provided on the electrodes used in the arc welding is not expected to

Addition of silicon to cast iron

Yield strength of a material is determined by the __________ test.

Common salt is produced from sea water in India generally by the __________ method.

Also checkout

Chlorine acts as a bleaching agent only in the presence of

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Force between the molecules of the same substance is called __________ force.

Titanium is produced by __________ of Ti Cl4.

Starting friction is low in case of the __________ lubrication.

Increase in the entropy of a system represents the

Silicon crystal can be converted to p-type semiconductor by doping with

Evaporative cooling process employs a combination of cooling and humidification in which the

Globular form of cementite is formed during the __________ process.

The majority charge carriers in p-type silicon are

Which of the following is not categorised as the ore agglomeration process?

In case of compression of one kg of air, the work done will be the least, when the value of polytropic index 'n' is

With increase in temperature, the surface tension of water

The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the

Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.

Blast furnace slag is mainly molten

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

Water flow in the river during flood can be categorised as the __________ flow.

The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K)

__________ is the hardest material out of the following.

Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?

In case of simple harmonic motion, displacement is proportional to the

Steel & cast iron pipes are produced by __________ casting.

The highest stress that a material can withstand for a specified length of time without excessive deformation is called the __________ strength.

Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.

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

Spark plug is provided in a/an

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

Coating provided on the electrodes used in the arc welding is not expected to

Addition of silicon to cast iron

Yield strength of a material is determined by the __________ test.

Common salt is produced from sea water in India generally by the __________ method.

Also checkout

Titanium is produced by __________ of Ti Cl₄.