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

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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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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'

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Pick out the wrong statement.

A. Geothermal energy is a non-conventional source of energy

B. Mass is converted into energy in both nuclear fission & fusion reaction

C. Inhalation of mercury vapour is not harmful for human beings

D. Inhalation of arsenic causes cancer

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Brazing is the joining of metals

A. Without melting the base metal

B. With a non-ferrous filler

C. Both (A) & (B)

D. Neither (A) nor (B)

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Pick out the wrong statement.

A. The equivalent stiffness of two springs (of equal stiffness 'S') in series is S/2 while in parallel is 2S

B. For a helical spring, deflection is proportional to D³ (D = mean coil diameter) or d⁴ (d = wire diameter)

C. Crushing load or columns is less than the buckling load

D. Modulus of resilience is proportional to (stress at elastic limit)²

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__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

A. Tensile

B. Fatigue

C. Impact

D. None of these

Discuss this answer

Which of the following materials has the least scrap value?

A. Aluminium

B. Stainless steel

C. Brass

D. Copper

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

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Nitriding of a steel part does not increase its

A. Grain size

B. Fatigue limit

C. Surface hardness

D. Wear resistance

Discuss this answer

The substance used as a smoke screen in warfare is

A. C2H2

B. SiCl4

C. P2O5

D. PCl5

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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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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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Runge-Kutta method is used to solve a/an

A. Ordinary differential equation of nth order

B. Simultaneous non-linear equation

C. Linear differential equation

D. None of these

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Alloy powder manufactured by the following process have spherical shapes.

A. Electrochemical deposition

B. Gaseous reduction

C. Atomisation

D. Mechanical attrition

Discuss this answer

A common disinfectant used in village wells for disinfection of water is

A. Free chlorine

B. Bromine

C. Iodine

D. Potassium permanganate

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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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The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong

A. Base and strong acid

B. Base and weak acid

C. Acid and weak base

D. None of these

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Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

A. 2

B. 3

C. 0.8

D. 6

Discuss this answer

The most commonly used moderator in nuclear power plants is

A. Graphite

B. Light water

C. Heavy water

D. Beryllium

Discuss this answer

__________ test is the appropriate test to determine whether a material is ductile or brittle.

A. Impact

B. Cupping

C. Hardness

D. Tensile

Discuss this answer

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg)?

A. Propane and acetylene

B. Propane and LPG

C. Sewage gas and gobar gas

D. B.F gas and coke oven gas

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During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

A. Time

B. Square root of time

C. Square of time

D. Cube of time

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__________ cannot increase the fatigue strength of a material.

A. Grain refining

B. Grain coarsening

C. Surface hardening

D. Shot peening

Discuss this answer

The co-ordination number in simple cubic structure is

A. 4

B. 6

C. 8

D. 12

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

Identify the correct statement with reference to the extractive metallurgy of aluminium.

A. The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3

B. Approximately 80% of the aluminium deposited on the cathode comes from cryolite

C. Sodium is deposited along with aluminium, but is immediately vaporised

D. Anode effect sets in when the cryolite concentration goes below 40%.

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'Amortization' in respect of financial obligation of a company means the

A. Liquidation of financial obligations on instalment basis

B. Commitment of financial obligation on priority

C. Liquidation of all the obsolete equipments of the company

D. Modernisation of the plant equipments

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Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

A. A

B. l

C. A2

D. Both 'a' & 'b'

Discuss this answer

Out of the following, the __________ pipe has the least corrosion resistance.

A. Mild steel

B. Copper

C. Cast iron

D. Wrought iron

Discuss this answer

In inventory control theory, the economic order quantity (EOQ) is the

A. Lot size corresponding to break even analysis

B. Average level of inventory

C. Optimum lot size

D. None of these

Discuss this answer

The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

A. Refrigerant cooling

B. Evaporator

C. Condenser

D. Throttling

Discuss this answer

Accepted Answer

C. 50-60% indirect reduction

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

Pick out the wrong statement.

Brazing is the joining of metals

Pick out the wrong statement.

__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

Which of the following materials has the least scrap value?

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

Nitriding of a steel part does not increase its

The substance used as a smoke screen in warfare is

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

Plants produce carbohydrates from the CO2 present in the atmosphere by

Runge-Kutta method is used to solve a/an

Alloy powder manufactured by the following process have spherical shapes.

A common disinfectant used in village wells for disinfection of water is

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

The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong

Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

The most commonly used moderator in nuclear power plants is

__________ test is the appropriate test to determine whether a material is ductile or brittle.

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg)?

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

__________ cannot increase the fatigue strength of a material.

The co-ordination number in simple cubic structure is

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

Identify the correct statement with reference to the extractive metallurgy of aluminium.

'Amortization' in respect of financial obligation of a company means the

Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

Out of the following, the __________ pipe has the least corrosion resistance.

In inventory control theory, the economic order quantity (EOQ) is the

The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

Pick out the wrong statement.

Brazing is the joining of metals

Pick out the wrong statement.

__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

Which of the following materials has the least scrap value?

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

Nitriding of a steel part does not increase its

The substance used as a smoke screen in warfare is

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

Plants produce carbohydrates from the CO2 present in the atmosphere by

Runge-Kutta method is used to solve a/an

Alloy powder manufactured by the following process have spherical shapes.

A common disinfectant used in village wells for disinfection of water is

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

The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong

Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

The most commonly used moderator in nuclear power plants is

__________ test is the appropriate test to determine whether a material is ductile or brittle.

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg)?

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

__________ cannot increase the fatigue strength of a material.

The co-ordination number in simple cubic structure is

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

Identify the correct statement with reference to the extractive metallurgy of aluminium.

'Amortization' in respect of financial obligation of a company means the

Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)

Out of the following, the __________ pipe has the least corrosion resistance.

In inventory control theory, the economic order quantity (EOQ) is the

The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

Also checkout

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

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³) while the C.V. is same on weight basis (i.e., kcal/kg)?