With decrease in the grain size of a material, its creep resistance

Question

With decrease in the grain size of a material, its creep resistance

A. Increases

B. Decreases

C. Remain constant

D. Either (A) or (B); depends on the material

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The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability?

A. Lead

B. Copper

C. Aluminium

D. Wrought iron

Discuss this answer

__________ rubber is generally used for making 'O' rings used for vacuum sealings.

A. Natural

B. Neoprene

C. Butadiene

D. Nitrile

Discuss this answer

__________ is used as a material of construction for the blade of power saw.

A. Wrought iron

B. Stainless steel

C. Mild steel

D. High speed steel

Discuss this answer

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

A. Air filter

B. Fuel injector

C. Exhaust silencer

D. Battery

Discuss this answer

Thermal efficiency of an internal combustion engine is around __________ percent.

A. 8

B. 35

C. 65

D. 80

Discuss this answer

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

A. 7

B. 10

C. 12

D. 17

Discuss this answer

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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An alloy of Fe - 0.4 % C is

A. Cast iron

B. Hypo-eutectoid steel

C. Hyper-eutectoid steel

D. Eutectoid steel

Discuss this answer

Out of the following, the most malleable material is

A. Copper

B. Aluminium

C. Wrought iron

D. Lead

Discuss this answer

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

Discuss this answer

Neutrons are present in all atoms except that of

A. He

B. C

C. H

D. Ar

Discuss this answer

Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.

A. Film

B. Nucleate

C. Transition

D. All modes of

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__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

A. Collar

B. Flanged

C. Bell and Spigot

D. Expansion

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In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.

A. Percentage elongation

B. Brinell hardness

C. Tensile strength

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

Discuss this answer

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

A. Lancing

B. Shot peening

C. Slugging

D. Spinning

Discuss this answer

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

A. 2³

B. 2^3/2

C. 2^5/2

D. 2^1/3

Discuss this answer

In a good rimming steel

A. Carbon and silicon should be low

B. Silicon should be low but carbon should be high

C. Both silicon & carbon should be high

D. Silicon should be high but carbon should be low

Discuss this answer

Biological shield in a nuclear reactor is generally provided to protect against the

A. α-rays

B. β-rays

C. Gamma rays & neutrons

D. Electrons

Discuss this answer

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

A. 100

B. 900

C. 9000

D. 10000

Discuss this answer

The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

A. Ambient

B. Dry bulb

C. Dew point

D. Wet bulb

Discuss this answer

Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

A. Malleable iron

B. Grey cast iron

C. Chilled cast iron

D. White cast iron

Discuss this answer

Theoretical volume of oxygen required for complete combustion of 1Nm³ of acetylene, in oxyacetylene welding is __________ Nm³.

A. 0.5

B. 1

C. 1/3

D. 2.5

Discuss this answer

Materials having __________ lattice structure are usually the most ductile.

A. Body centred cubic (bcc)

B. Hexagonal close packed (hcp)

C. Face centred cubic (fcc)

D. None of these

Discuss this answer

The product of a commercial direct reduction process is

A. Liquid iron

B. Solid iron

C. Sponge iron

D. Iron saturated with carbon

Discuss this answer

Dryness fraction of dry steam is

A. 0

B. ∞

C. 1

D. 0.5

Discuss this answer

Pick out the wrong statement.

A. Cold cracking of a weld is due to the presence of hydrogen gas in the weld

B. True stress is given by, σ = σE (1 + εE), where σE and εE are engineering stress and engineering strain respectively

C. Phosphorous can be easily recovered in the iron blast furnace

D. High residual stress at the surface is beneficial for fatigue properties of a material

Discuss this answer

Non-ferrous alloys used for making cutting tools need not have high

A. Abrasion resistance

B. Toughness

C. Red hardness

D. Cutting speed

Discuss this answer

Out of the following __________ iron has the best capability to bear sudden & excessive shocks.

A. White

B. Cast

C. Wrought

D. Pig

Discuss this answer

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

Discuss this answer

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

A. 4.4

B. 5.6

C. 8.4

D. 2.4

Discuss this answer

Accepted Answer

C. Remain constant

With decrease in the grain size of a material, its creep resistance

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability?

__________ rubber is generally used for making 'O' rings used for vacuum sealings.

__________ is used as a material of construction for the blade of power saw.

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

Thermal efficiency of an internal combustion engine is around __________ percent.

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

Pick out the wrong statement.

An alloy of Fe - 0.4 % C is

Out of the following, the most malleable material is

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

Neutrons are present in all atoms except that of

Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

In a good rimming steel

Biological shield in a nuclear reactor is generally provided to protect against the

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

Theoretical volume of oxygen required for complete combustion of 1Nm³ of acetylene, in oxyacetylene welding is __________ Nm³.

Materials having __________ lattice structure are usually the most ductile.

The product of a commercial direct reduction process is

Dryness fraction of dry steam is

Pick out the wrong statement.

Non-ferrous alloys used for making cutting tools need not have high

Out of the following __________ iron has the best capability to bear sudden & excessive shocks.

Addition of silicon to cast iron

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

Also checkout

With decrease in the grain size of a material, its creep resistance

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability?

__________ rubber is generally used for making 'O' rings used for vacuum sealings.

__________ is used as a material of construction for the blade of power saw.

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

Thermal efficiency of an internal combustion engine is around __________ percent.

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

Pick out the wrong statement.

An alloy of Fe - 0.4 % C is

Out of the following, the most malleable material is

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

Neutrons are present in all atoms except that of

Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.

__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength.

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

In a good rimming steel

Biological shield in a nuclear reactor is generally provided to protect against the

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m- 1. k-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.

Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene welding is __________ Nm3.

Materials having __________ lattice structure are usually the most ductile.

The product of a commercial direct reduction process is

Dryness fraction of dry steam is

Pick out the wrong statement.

Non-ferrous alloys used for making cutting tools need not have high

Out of the following __________ iron has the best capability to bear sudden & excessive shocks.

Addition of silicon to cast iron

The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

Also checkout

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

Theoretical volume of oxygen required for complete combustion of 1Nm³ of acetylene, in oxyacetylene welding is __________ Nm³.

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)