The joint for soldering is supported by binding wire made of

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The joint for soldering is supported by binding wire made of

A. Mild steel

B. Copper

C. Soft iron

D. Stainless steel

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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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What happens, when SO₂ is passed through a solution of H2S in water?

A. Precipitation of sulphur takes place

B. H₂SO₃ is formed

C. Oleum is formed

D. None of these

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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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Viscoelastic behaviour is observed in __________ materials.

A. Non-crystalline organic polymeric

B. Ceramic

C. All crystalline

D. All amorphous

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Increasing sulphur content in pig iron tends to make it

A. Soft

B. Hard

C. Tough

D. Ductile & malleable

Discuss this answer

Which of the following is a boiler accessory
i.e., not a boiler mounting?

A. Blow off cock

B. Feed check valve

C. Feed water pump

D. Stop valve

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Dephosphorization of molten pig iron is favoured by

A. Oxidising and basic slag

B. Reducing and basic slag

C. High activity co-efficient of phosphorous in metal

D. Oxidising and neutral slag

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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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__________ has a negative co-efficient of linear expansion.

A. Iron

B. Copper

C. Rubber

D. Nickel

Discuss this answer

Pick out the wrong statement.

A. Lead can creep under its own weight at room temperature

B. The electrical conductivity of gold is considerably reduced by alloying additions due to the decrease in electron movement

C. Recrystallisation temperature decreases with decrease in strain in a cold worked metal

D. With increase in temperature, the electrical conductivity of intrinsic semi-conductor will increase

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Which of the following is not a ferromagnetic material?

A. Nickel

B. Cobalt

C. Aluminium

D. Iron

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Stresses encountered in the metal forming processes are less than the __________ of the material.

A. Fracture strength

B. Yield strength

C. Elastic limit

D. Limit of proportionality

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__________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it increased resistance to corrosion & oxidation upto a temperature of 700°C.

A. Veneering

B. Galvanising

C. Electroplating

D. Calorising

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Work done by a/an __________ process is determined by ∫p. dv

A. Adiabatic

B. Quasi-static

C. Isothermal

D. Isentropic

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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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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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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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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

Discuss this answer

In the acid Bessemer process, the hot metal should have the following composition.

A. S < 0.05% and P < 0.05%

B. S < 0.05% and P < 1.5%

C. S < 0.05% and P > 1.5%

D. S > 1.5% and P < 0.05%

Discuss this answer

Faraday's law of electrolysis is related to the

A. Cation speed

B. Atomic number of the cation

C. Equivalent mass of the electrolyte

D. None of these

Discuss this answer

Minimum thermal efficiency of a steam boiler may be around __________ percent

A. 25

B. 45

C. 65

D. 20

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Nusselt number/Biot number varies

A. Inversely with thermal conductivity

B. Directly with heat transfer co-efficient

C. Directly with thermal conductivity

D. Inversely with the dimension of the solid

Discuss this answer

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

A. Gr^0.25, Gr

B. Gr^0.25, Gr^0.33

C. Gr, Gr^0.25

D. Gr^0.33, Gr^0.25

Discuss this answer

Stainless steel is welded with difficulty because of

A. Its high melting temperature

B. Chances of cracking

C. Oxide film formation

D. Chromium carbide formation

Discuss this answer

Isotropic materials have the same __________ in all directions.

A. Induced stresses

B. Density

C. Elastic properties

D. Thermal properties

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About __________ ton of coke is required in a cupola to produce one ton of casting.

A. 0.03

B. 0.3

C. 0.8

D. 1.5

Discuss this answer

Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used?

A. Vapour locking

B. Hot starting

C. Spark plug fouling

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

Discuss this answer

__________ temperature remains constant during adiabatic saturation process of unsaturated air.

A. Dew point

B. Dry bulb

C. Wet bulb

D. None of these

Discuss this answer

Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

A. Below the yield point

B. Above the yield point

C. Below the elastic limit

D. At the elastic limit

Discuss this answer

Which of the following metals is the most prone to work hardening?

A. Brass

B. Aluminium

C. Copper

D. Lead

Discuss this answer

Accepted Answer

C. Soft iron

The joint for soldering is supported by binding wire made of

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

What happens, when SO₂ is passed through a solution of H2S in water?

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

Viscoelastic behaviour is observed in __________ materials.

Increasing sulphur content in pig iron tends to make it

Which of the following is a boiler accessory
i.e., not a boiler mounting?

Dephosphorization of molten pig iron is favoured by

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

__________ has a negative co-efficient of linear expansion.

Pick out the wrong statement.

Which of the following is not a ferromagnetic material?

Stresses encountered in the metal forming processes are less than the __________ of the material.

__________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it increased resistance to corrosion & oxidation upto a temperature of 700°C.

Work done by a/an __________ process is determined by ∫p. dv

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

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

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

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

In the acid Bessemer process, the hot metal should have the following composition.

Faraday's law of electrolysis is related to the

Minimum thermal efficiency of a steam boiler may be around __________ percent

Nusselt number/Biot number varies

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

Stainless steel is welded with difficulty because of

Isotropic materials have the same __________ in all directions.

About __________ ton of coke is required in a cupola to produce one ton of casting.

Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used?

__________ temperature remains constant during adiabatic saturation process of unsaturated air.

Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

Which of the following metals is the most prone to work hardening?

Also checkout

The joint for soldering is supported by binding wire made of

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

What happens, when SO2 is passed through a solution of H2S in water?

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

Viscoelastic behaviour is observed in __________ materials.

Increasing sulphur content in pig iron tends to make it

Which of the following is a boiler accessory i.e., not a boiler mounting?

Dephosphorization of molten pig iron is favoured by

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

__________ has a negative co-efficient of linear expansion.

Pick out the wrong statement.

Which of the following is not a ferromagnetic material?

Stresses encountered in the metal forming processes are less than the __________ of the material.

__________ is the process of coating the surface of steel with aluminium oxide, thereby imparting it increased resistance to corrosion & oxidation upto a temperature of 700°C.

Work done by a/an __________ process is determined by ∫p. dv

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

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

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

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

In the acid Bessemer process, the hot metal should have the following composition.

Faraday's law of electrolysis is related to the

Minimum thermal efficiency of a steam boiler may be around __________ percent

Nusselt number/Biot number varies

Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

Stainless steel is welded with difficulty because of

Isotropic materials have the same __________ in all directions.

About __________ ton of coke is required in a cupola to produce one ton of casting.

Which of the following performance characteristics of a S.I engine is not affected by the front end volatility of the petrol used?

__________ temperature remains constant during adiabatic saturation process of unsaturated air.

Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails

Which of the following metals is the most prone to work hardening?

Also checkout

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

What happens, when SO₂ is passed through a solution of H2S in water?

Which of the following is a boiler accessory
i.e., not a boiler mounting?

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