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

Question

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

A. Nickel

Correct Answer :

A. Nickel

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Annealing of cast iron

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Thermit welding is categorised as the __________ welding.

A. Forge

B. Fusion

D. Arc

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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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What is the percentage of chromium in 18-4-1 high speed steel?

A. 1

B. 4

C. 18

D. 23

Discuss this answer

The most important requirement for aluminium industry is the availability of cheap

A. Ore

C. Labour

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

A. Nickel

Discuss this answer

__________ of air does not increase with increase in temperature.

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Unit of surface tension in S.I. unit is

A. Watt/m

B. Joule/

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The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by

Discuss this answer

Silicon percentage in silicon steel used for electrical equipments is about

A. 1

B. 4.0

C. 8

D. 14

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The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?

A. 159

B. 1837

C. 2537

D. 10000

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__________ is not used as a material of construction in thermocouples.

A. Alumel

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Dryness fraction of dry steam is

A. 0

B. ∞

C. 1

D. 0.5

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

D. Copper

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Pick out the correct statement about the condensation.

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Superheating of steam is done at constant

D. Volume

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The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

Discuss this answer

Steel is welded using the __________ flame.

Discuss this answer

Compressed dry air is used as the cutting fluid, while machining

A. Steel

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Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

A. Atoms

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An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section.

Discuss this answer

Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when

Discuss this answer

As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise.

A. 110

B. 85

C. 60

D. 45

Discuss this answer

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

Discuss this answer

Which of the following mainly decides the current to be employed is arc welding?

Discuss this answer

The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________ times.

A. Two

B. Four

C. Six

D. Eight

Discuss this answer

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

Discuss this answer

Air intake for an air compressor should be preferably taken from

Discuss this answer

A high pressure boiler generates steam at a pressure greater than __________ kg/cm².

A. 10

B. 30

C. 50

D. 80

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

Answer 1

B. Vanadium

Answer 2

C. Molybdenum

Answer 3

D. Chromium

Answer 4

A. Softens it to facilitate machining

Answer 5

B. Decreases the free carbon

Answer 6

C. Increases the strength

Answer 7

D. None of these

Answer 8

C. Resistance

Answer 9

A. Neutral

Answer 10

D. Zero pH

Answer 11

B. Electrical power

Answer 12

D. Abundant water

Answer 13

B. Vanadium

Answer 14

C. Molybdenum

Answer 15

D. Chromium

Answer 16

A. Density

Answer 17

B. Thermal diffusivity

Answer 18

C. Viscosity

Answer 19

D. Thermal conductivity

Answer 20

C. Newton/

Answer 21

D. Joule/m

Answer 22

A. Decreasing the surface area of the electrodes

Answer 23

B. Increasing the concentration of zinc sulphate solution

Answer 24

C. Increasing the surface area of the electrodes

Answer 25

D. Increasing the concentration of copper sulphate solution

Answer 26

B. Rhodium

Answer 27

C. Constantan

Answer 28

D. Duralumin

Answer 29

A. Manganese

Answer 30

B. Magnesium

Answer 31

C. Vanadium

Answer 32

A. Filmwise condensation gives a lower heat transfer rate than the dropwise condensation

Answer 33

B. Suitable coating or vapour additive is used to promote film wise condensation

Answer 34

C. If a condensing liquid does not wet the surface dropwise, even then condensation will take place on it

Answer 35

D. Reynolds number of condensing liquid is based on its mass flow rate

Answer 36

A. Enthalpy

Answer 37

B. Entropy

Answer 38

C. Pressure

Answer 39

A. Equal to

Answer 40

B. Greater than

Answer 41

C. Less than

Answer 42

D. Either (A), (B) or (C); depends on the size of atom

Answer 43

A. Carburising

Answer 44

B. Neutral

Answer 45

C. Oxidising

Answer 46

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

Answer 47

B. Cast iron

Answer 48

C. Aluminium

Answer 49

D. None of these

Answer 50

B. Neutrons

Answer 51

C. Nucleons

Answer 52

D. Electrons

Answer 53

A. Adiabatic

Answer 54

B. Isothermal

Answer 55

C. Isentropic

Answer 56

D. Isochoric

Answer 57

A. Strain rate is increased

Answer 58

B. Grain size is increased

Answer 59

C. Prior cold deformation is increased

Answer 60

D. Not affected by any of the above parameters

Answer 61

A. Natural

Answer 62

B. Neoprene

Answer 63

C. Butadiene

Answer 64

D. Nitrile

Answer 65

A. Electrode size

Answer 66

B. Plate thickness

Answer 67

C. Voltage across the arc

Answer 68

D. Welded portion length

Answer 69

A. Blow off cock

Answer 70

B. Feed check valve

Answer 71

C. Feed water pump

Answer 72

D. Stop valve

Answer 73

A. A site, where cooling towers are located nearby

Answer 74

B. A site, where open coal yard in located nearby

Answer 75

C. An air conditioned room maintained at a temperature of 18°C

Answer 76

D. An outside atmosphere at 10°C

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Annealing of cast iron

Thermit welding is categorised as the __________ welding.

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

What is the percentage of chromium in 18-4-1 high speed steel?

The most important requirement for aluminium industry is the availability of cheap

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

__________ of air does not increase with increase in temperature.

Unit of surface tension in S.I. unit is

The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by

Silicon percentage in silicon steel used for electrical equipments is about

The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?

__________ is not used as a material of construction in thermocouples.

Dryness fraction of dry steam is

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

Pick out the correct statement about the condensation.

Superheating of steam is done at constant

The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

Steel is welded using the __________ flame.

Compressed dry air is used as the cutting fluid, while machining

Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section.

Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when

As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise.

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

Which of the following mainly decides the current to be employed is arc welding?

The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________ times.

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

Air intake for an air compressor should be preferably taken from

A high pressure boiler generates steam at a pressure greater than __________ kg/cm².

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

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Annealing of cast iron

Thermit welding is categorised as the __________ welding.

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

What is the percentage of chromium in 18-4-1 high speed steel?

The most important requirement for aluminium industry is the availability of cheap

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

__________ of air does not increase with increase in temperature.

Unit of surface tension in S.I. unit is

The emf of a Deniell cell Zn | Zn2+ || Cu2+ | Cu can be increased by

Silicon percentage in silicon steel used for electrical equipments is about

The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?

__________ is not used as a material of construction in thermocouples.

Dryness fraction of dry steam is

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

Pick out the correct statement about the condensation.

Superheating of steam is done at constant

The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

Steel is welded using the __________ flame.

Compressed dry air is used as the cutting fluid, while machining

Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section.

Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when

As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise.

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

Which of the following mainly decides the current to be employed is arc welding?

The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________ times.

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

Air intake for an air compressor should be preferably taken from

A high pressure boiler generates steam at a pressure greater than __________ kg/cm2.

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

Also checkout

The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by

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

A high pressure boiler generates steam at a pressure greater than __________ kg/cm².