Reduction in the grain size reduces the __________ of the material.

Question

Reduction in the grain size reduces the __________ of the material.

A. Fatigue resistance

B. Tensile strength

C. Creep resistance

D. All (A), (B) & (C)

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Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

A. E = 2G (1 + v)

B. E = G (1 + v)

C. E = G (1 + v)/2

D. E = 2G (1 + 2v)

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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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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

Brittleness induced due to the presence of sulphur in steel can be reduced by adding

A. Manganese

B. Magnesium

C. Vanadium

D. Copper

Discuss this answer

An example of unsteady non uniform flow is the flow of liquid under pressure through a

A. Tapering pipe at constant flow rate

B. Tapering pipe at either decreasing or increasing flow rate

C. Long pipeline of constant diameter

D. None of these

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Addition of __________ to steel does not impart hardness.

A. Nickel

B. Copper

C. Chromium

D. Silicon

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Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v²)] (V - b) = RT, depends upon its

A. Pressure & temperature

B. Pressure & specific volume

C. Temperature & specific volume

D. Temperature only

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The amount of different substances produced, when the same quantity of electricity is passed through different solutions are proportional to their

A. Equivalent weight

B. (Equivalent weight)²

C. Molecular weight

D. (Molecular weight)²

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The lightest non-inflammable gas is

A. H2

B. He

C. Ar

D. O2

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Exposure to __________ accelerates the degradation of plastics.

A. Ultraviolet radiation

B. High atmospheric temperature

C. High ambient temperature

D. Damp atmosphere

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Normalising does not __________ of a metal.

A. Improve machinability & tensile strength

B. Remove internal stresses

C. Refine the structure

D. Remove strains caused by cold working

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'Cryogenics' is concerned with the generation & use of low temperature in the range of

A. 0°K to 123°K

B. 0°C to - 123°C

C. 0°C to - 273°C

D. 0°K to 273°K

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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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Function of gear box is to

A. Reduce the speed

B. Obtain variable speed

C. Increase the speed

D. Produce high torque

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The value of for air & most common gases can be safely assumed to be

A. 0.8

B. 1

C. 1.4

D. 1.8

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All of the following alloying elements of steel increases hardness but sacrifice ductility, except

A. Nickel

B. Vanadium

C. Molybdenum

D. Chromium

Discuss this answer

Yield strength of a polycrystalline metal with an average grain size d, is proportional to

A. d^1/2

B. d^-1/2

C. d

D. d^-1

Discuss this answer

Which of the following forces does not act on a fluid at rest?

A. Viscous force

B. Gravity force

C. Hydrostatic force

D. Surface tension force

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Saturated steam at a pressure of 25 kg/cm² is throttled to attain 5 kg/cm². Then the outcoming steam will be

A. Wet

B. Saturated

C. Superheated

D. None of these

Discuss this answer

Which of the following is an acidic constituent of B.F. slag?

A.

B. FeO

C. MgO

D. CaO

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Difference at any instant between the value of the controlled variable and the set point is called the

A. Deviation

B. Derivative time

C. Error ratio

D. Differential gap

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Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is

A. Very low which prevents their ignition by compression

B. Very high which prevents their ignition by compression

C. Zero

D. None of these

Discuss this answer

The most suitable material of construction for a sewer to carry sewage under high pressure is

A. Asbestos cement

B. Steel

C. Cement concrete

D. Stoneware

Discuss this answer

Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the pressure of steam.

A. Decreases

B. Increases

C. Remain same

D. May increase or decrease

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Fire refining process is employed in case of

A. Tin

B. Copper

C. Zinc

D. Aluminium

Discuss this answer

In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer will be

A. Conduction

B. Radiation

C. Natural convection

D. Forced convection

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The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a boiler.

A. Evaporative capacity

B. Evaporation efficiency

C. Thermal efficiency

D. Steam load

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Leakage in a cooking gas cylinder is detected by

A. Radio-isotopes

B. Pouring soap solution on the surface and locating the gas bubbles

C. Halide torch

D. Pungent smell of mercaptans present in the gas

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Unbreakable crockeries are made from __________ polymers.

A. Polystyrene

B. Melamine

C. Polystyrene

D. Polyurethane

Discuss this answer

Which of the following is not a ferromagnetic material?

A. Nickel

B. Cobalt

C. Aluminium

D. Iron

Discuss this answer

Accepted Answer

D. All (A), (B) & (C)

Reduction in the grain size reduces the __________ of the material.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

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

Stainless steel is welded with difficulty because of

Brittleness induced due to the presence of sulphur in steel can be reduced by adding

An example of unsteady non uniform flow is the flow of liquid under pressure through a

Addition of __________ to steel does not impart hardness.

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v²)] (V - b) = RT, depends upon its

The amount of different substances produced, when the same quantity of electricity is passed through different solutions are proportional to their

The lightest non-inflammable gas is

Exposure to __________ accelerates the degradation of plastics.

Normalising does not __________ of a metal.

'Cryogenics' is concerned with the generation & use of low temperature in the range of

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

Function of gear box is to

The value of for air & most common gases can be safely assumed to be

All of the following alloying elements of steel increases hardness but sacrifice ductility, except

Yield strength of a polycrystalline metal with an average grain size d, is proportional to

Which of the following forces does not act on a fluid at rest?

Saturated steam at a pressure of 25 kg/cm² is throttled to attain 5 kg/cm². Then the outcoming steam will be

Which of the following is an acidic constituent of B.F. slag?

Difference at any instant between the value of the controlled variable and the set point is called the

Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is

The most suitable material of construction for a sewer to carry sewage under high pressure is

Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the pressure of steam.

Fire refining process is employed in case of

In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer will be

The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a boiler.

Leakage in a cooking gas cylinder is detected by

Unbreakable crockeries are made from __________ polymers.

Which of the following is not a ferromagnetic material?

Also checkout

Reduction in the grain size reduces the __________ of the material.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

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

Stainless steel is welded with difficulty because of

Brittleness induced due to the presence of sulphur in steel can be reduced by adding

An example of unsteady non uniform flow is the flow of liquid under pressure through a

Addition of __________ to steel does not impart hardness.

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v2)] (V - b) = RT, depends upon its

The amount of different substances produced, when the same quantity of electricity is passed through different solutions are proportional to their

The lightest non-inflammable gas is

Exposure to __________ accelerates the degradation of plastics.

Normalising does not __________ of a metal.

'Cryogenics' is concerned with the generation & use of low temperature in the range of

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

Function of gear box is to

The value of for air & most common gases can be safely assumed to be

All of the following alloying elements of steel increases hardness but sacrifice ductility, except

Yield strength of a polycrystalline metal with an average grain size d, is proportional to

Which of the following forces does not act on a fluid at rest?

Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam will be

Which of the following is an acidic constituent of B.F. slag?

Difference at any instant between the value of the controlled variable and the set point is called the

Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is

The most suitable material of construction for a sewer to carry sewage under high pressure is

Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the pressure of steam.

Fire refining process is employed in case of

In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer will be

The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a boiler.

Leakage in a cooking gas cylinder is detected by

Unbreakable crockeries are made from __________ polymers.

Which of the following is not a ferromagnetic material?

Also checkout

Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v²)] (V - b) = RT, depends upon its

Saturated steam at a pressure of 25 kg/cm² is throttled to attain 5 kg/cm². Then the outcoming steam will be