The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

Question

The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

A. 0.2

B. 0.4

C. 0.6

D. 0.8

Correct Answer :

A. 0.2

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

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Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

A. 723

B. 959

C. 1147

D. 1493

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__________ is not used as the control rod material in a nuclear reactor.

A. Cobalt

D. Boron

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A solution which resists change in its pH value on addition of acid/alkali is called the __________ solution.

B. Ideal

C. Buffer

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Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

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Blast furnace slag is mainly molten

A. Sand

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Nusselt number/Biot number varies

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__________ wire is never used for making the heating element.

C. Invar

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

A. Mach

B. Froude

D. Euler

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High endurance limit of carburised machine parts is because of the fact that carburisation

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Out of the following, the alloy which has equal percentage of constituents, is

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Spark plug is provided in a/an

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The thermodynamic law, = constant, is not followed by the

Discuss this answer

Hydro-cyclone is a

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Diamagnetic materials

Discuss this answer

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

Discuss this answer

Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is

Discuss this answer

With increase in annealing temperature, the following defect density decreases.

Discuss this answer

Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.

A. Slip

Discuss this answer

Pick out the wrong statement about the machinability of metals. Machinability of a metal

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Heat flow across a hollow sphere of inner radius 'r₁' and outer radius 'r₂' is directly proportional to

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

A. Creep

Discuss this answer

What is the value of entropy at 273°K?

A. 0

B. 1

C. ∞

Discuss this answer

The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the

Discuss this answer

The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is __________ BTU/hr.

A. 100

B. 200

C. 1000

D. 2000

Discuss this answer

Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.
A. Induced draft fan
B. Economiser
C. Air preheater
D. Steam superheater Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories?

Discuss this answer

__________ is the most suitable lubricant for drawing mild steel wires?

B. Water

Discuss this answer

While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.

A. 1800

B. 2000

C. 2400

D. 3000

Discuss this answer

The product of a commercial direct reduction process is

Discuss this answer

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

A. 0

B. 0.33

C. 0.44

D. 0.25

Discuss this answer

Answer 1

A. Velocity

Answer 2

B. Acceleration

Answer 3

C. Both (A) & (B)

Answer 4

D. Neither (A) nor (B)

Answer 5

B. Hafnium

Answer 6

C. Cadmium

Answer 7

A. Neutral

Answer 8

D. Zero pH

Answer 9

A. Sorbite

Answer 10

B. Bainite

Answer 11

C. Martensite

Answer 12

D. Troostite

Answer 13

B. Magnesium silicate

Answer 14

C. Calcium silicate

Answer 15

D. Iron pyrite

Answer 16

A. Inversely with thermal conductivity

Answer 17

B. Directly with heat transfer co-efficient

Answer 18

C. Directly with thermal conductivity

Answer 19

D. Inversely with the dimension of the solid

Answer 20

A. Nichrome

Answer 21

B. Kanthal

Answer 22

D. None of these

Answer 23

C. Reynolds

Answer 24

A. Suppresses any stress concentration produced in the parts

Answer 25

B. Enhances the yield point of the material

Answer 26

C. Introduces a compressive layer on the surface

Answer 27

D. Produces a better surface finish

Answer 28

A. White metal

Answer 29

B. Gun metal

Answer 30

C. Duralumin

Answer 31

D. Constantan

Answer 32

A. Engine having carburettor

Answer 33

B. Diesel engine

Answer 34

C. Compression ignition engine

Answer 35

D. Both (B) & (C)

Answer 36

A. Free expansion of an ideal gas

Answer 37

B. Adiabatic expansion of steam in turbine

Answer 38

C. Adiabatic compression of air

Answer 39

D. Ideal compression of air

Answer 40

A. Crusher

Answer 41

B. wet classifier

Answer 42

C. Dry classifier

Answer 43

D. Magnetic separator

Answer 44

A. Are magnetised by eddy currents only

Answer 45

B. Are non-magnetic and cannot be magnetised

Answer 46

C. Are magnetised in direction opposite to the magnetic field

Answer 47

D. Can be magnetised in one direction only

Answer 48

D. Both 'a' & 'b'

Answer 49

A. Alumina

Answer 50

B. Platinum

Answer 51

C. Vanadium pentoxide

Answer 52

D. Iron oxide

Answer 53

A. Vacancy

Answer 54

B. Dislocation

Answer 55

C. Grain boundary

Answer 56

D. All of these

Answer 57

B. Fracture

Answer 58

C. Winning

Answer 59

D. Dislocation

Answer 60

A. Decreases with increase in strain hardening tendencies

Answer 61

B. Decreases with increase in hardness, in general

Answer 62

C. Depend on the composition, microstructure and physical & mechanical properties

Answer 63

D. Decreases with increases in tensile strength & decrease in grain size

Answer 64

A. (r₂ - r₁)/r₁. r₂

Answer 65

B. r₁. r₂/(r₂- r₁)

Answer 66

C. (r₂ + r₁)/r₁. r₂

Answer 67

D. r₁. r₂/(r₂ + r₁)

Answer 68

B. Tension

Answer 69

C. Compression

Answer 70

D. Endurance

Answer 71

D. None of these

Answer 72

A. Critical point

Answer 73

B. Curie temperature

Answer 74

C. Inversion temperature

Answer 75

D. Eutectic temperature

Answer 76

A. A, C, B, D

Answer 77

B. D, B, C, A

Answer 78

C. D, C, B, A

Answer 79

D. D, A, B, C

Answer 80

A. Kerosene

Answer 81

C. Sodium stearate

Answer 82

D. Lime water

Answer 83

A. Liquid iron

Answer 84

B. Solid iron

Answer 85

C. Sponge iron

Answer 86

D. Iron saturated with carbon

The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

__________ is not used as the control rod material in a nuclear reactor.

A solution which resists change in its pH value on addition of acid/alkali is called the __________ solution.

Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

Blast furnace slag is mainly molten

Nusselt number/Biot number varies

__________ wire is never used for making the heating element.

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

High endurance limit of carburised machine parts is because of the fact that carburisation

Out of the following, the alloy which has equal percentage of constituents, is

Spark plug is provided in a/an

The thermodynamic law, = constant, is not followed by the

Hydro-cyclone is a

Diamagnetic materials

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

Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is

With increase in annealing temperature, the following defect density decreases.

Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.

Pick out the wrong statement about the machinability of metals. Machinability of a metal

Heat flow across a hollow sphere of inner radius 'r₁' and outer radius 'r₂' is directly proportional to

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

What is the value of entropy at 273°K?

The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the

The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is __________ BTU/hr.

Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.
A. Induced draft fan
B. Economiser
C. Air preheater
D. Steam superheater Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories?

__________ is the most suitable lubricant for drawing mild steel wires?

While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.

The product of a commercial direct reduction process is

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

Also checkout

The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

__________ is not used as the control rod material in a nuclear reactor.

A solution which resists change in its pH value on addition of acid/alkali is called the __________ solution.

Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

Blast furnace slag is mainly molten

Nusselt number/Biot number varies

__________ wire is never used for making the heating element.

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

High endurance limit of carburised machine parts is because of the fact that carburisation

Out of the following, the alloy which has equal percentage of constituents, is

Spark plug is provided in a/an

The thermodynamic law, = constant, is not followed by the

Hydro-cyclone is a

Diamagnetic materials

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

Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is

With increase in annealing temperature, the following defect density decreases.

Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.

Pick out the wrong statement about the machinability of metals. Machinability of a metal

Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional to

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

What is the value of entropy at 273°K?

The temperature at which ferromagnetic material can no longer be magnetised by the outside forces, is termed as the

The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is __________ BTU/hr.

Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.A. Induced draft fanB. EconomiserC. Air preheaterD. Steam superheater Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories?

__________ is the most suitable lubricant for drawing mild steel wires?

While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.

The product of a commercial direct reduction process is

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

Also checkout

Heat flow across a hollow sphere of inner radius 'r₁' and outer radius 'r₂' is directly proportional to