The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation of __________ mm.

Question

The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation of __________ mm.

A. 0.001

B. 0.01

C. 0.002

D. 0.02

Correct Answer :

C. 0.002

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Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

A. Steel

C. Water

Discuss this answer

Large scale fire on fuel gas line is normally extinguished by

A. Water

B. Steam

C. Foam

Discuss this answer

Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.

A. Volume

C. Heat

Discuss this answer

Gas turbine normally employs a constant __________ cycle.

C. Volume

Discuss this answer

Carbon supply in pack carburising process is in the form of

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

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

A. 5

B. 15

C. 30

D. 45

Discuss this answer

During sensible cooling of air, its wet bulb temperature

Discuss this answer

M10 index of coke indicates its

Discuss this answer

Ultimate strength in tension as compared to that in shear for steel is

A. Half

Discuss this answer

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

Discuss this answer

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.

Discuss this answer

Hardening of steel is not possible, unless it is heated __________ critical point.

Discuss this answer

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

Discuss this answer

At the point of boundary layer separation in fluid flow, the

Discuss this answer

The starting of a car takes time in winter, because the

Discuss this answer

Factor of safety is the ratio of the __________ stress to the working stress.

C. Yield

Discuss this answer

Which of the following materials has the poorest electrical conductivity?

A. Carbon

C. Silver

Discuss this answer

Tempering of a material does not improve its

Discuss this answer

Dew point temperature always gives an indication of the __________ of the moist air.

Discuss this answer

__________ is the most important element, which controls the physical properties of steel.

C. Carbon

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

__________ of grey cast iron produces white cast iron.

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

The trace metal present in insulin is

A. Cu

B. Zn

C. Fe

D. Ni

Discuss this answer

Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.

Discuss this answer

Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

Discuss this answer

A dense structure of grinding wheel is not used for the

Discuss this answer

Cupola produces __________ iron.

A. Pig

B. Cast

Discuss this answer

Drills are usually made of

Discuss this answer

Answer 1

B. Lignite

Answer 2

D. Lime stone

Answer 3

D. Nitrogen

Answer 4

B. Pressure

Answer 5

D. None of these

Answer 6

A. Pressure

Answer 7

B. Temperature

Answer 8

D. None of these

Answer 9

A. Charcoal

Answer 10

B. Calcium carbide

Answer 11

C. Hydrocarbon oil

Answer 12

D. Graphite

Answer 13

A. Decreases but dew point remains constant

Answer 14

B. Increases but dew point remains constant

Answer 15

C. Increases & the dew point decreases

Answer 16

D. Decreases & the dew point increases

Answer 17

A. Compressive strength

Answer 18

B. Hardness

Answer 19

C. Abrasion resistance

Answer 20

D. Impact strength

Answer 21

B. One third

Answer 22

C. One and half times

Answer 23

D. One fourth

Answer 24

A. Lack of free

Answer 25

B. Excess of

Answer 26

C. Decrease in

Answer 27

D. None of these

Answer 28

A. Above the highest

Answer 29

B. Above the lowest

Answer 30

C. Between the first & second

Answer 31

D. Between the second & third

Answer 32

A. Wet bulb

Answer 33

B. Dry bulb

Answer 34

C. Saturation

Answer 35

D. Dew point

Answer 36

A. Shear stress is maximum

Answer 37

B. Velocity gradient is flat

Answer 38

C. Density variation is maximum

Answer 39

D. Shear stress is zero

Answer 40

A. Octane number of fuel is decreased

Answer 41

B. Fuel supply for ignition is not sufficient

Answer 42

C. Vaporisation of the fuel is decreased

Answer 43

D. Pour point of fuel decreases

Answer 44

A. Tensile

Answer 45

B. Compressive

Answer 46

D. Bearing

Answer 47

B. Aluminium

Answer 48

D. Stainless steel

Answer 49

A. Machinability

Answer 50

B. Toughness

Answer 51

C. Internal stress level

Answer 52

D. Softness

Answer 53

A. Dryness

Answer 54

B. Moisture content

Answer 55

C. Coolness

Answer 56

D. Latent heat

Answer 57

A. Manganese

Answer 58

B. Silicon

Answer 59

D. Vanadium

Answer 60

A. Tempering

Answer 61

B. Rapid heating

Answer 62

C. Rapid cooling

Answer 63

D. Slow cooling

Answer 64

A. Hexagonal close, packed (hcp)

Answer 65

B. Face centred cubic (fcc)

Answer 66

C. Body centred cubic (bcc)

Answer 67

D. Simple cubic

Answer 68

A. Admiralty brass

Answer 69

B. Stainless steel

Answer 70

C. Aluminium brass

Answer 71

D. Titanium

Answer 72

A. Ductile material

Answer 73

B. Hard materials

Answer 74

C. Brittle materials

Answer 75

D. Finishing cuts

Answer 76

C. Wrought

Answer 77

D. Carbon free

Answer 78

A. Cermets

Answer 79

B. High speed steel

Answer 80

C. Alloy steel

Answer 81

D. Tungsten carbide

The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation of __________ mm.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

Large scale fire on fuel gas line is normally extinguished by

Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.

Gas turbine normally employs a constant __________ cycle.

Carbon supply in pack carburising process is in the form of

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.

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

During sensible cooling of air, its wet bulb temperature

M10 index of coke indicates its

Ultimate strength in tension as compared to that in shear for steel is

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

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.

Hardening of steel is not possible, unless it is heated __________ critical point.

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

At the point of boundary layer separation in fluid flow, the

The starting of a car takes time in winter, because the

Factor of safety is the ratio of the __________ stress to the working stress.

Which of the following materials has the poorest electrical conductivity?

Tempering of a material does not improve its

Dew point temperature always gives an indication of the __________ of the moist air.

__________ is the most important element, which controls the physical properties of steel.

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

__________ of grey cast iron produces white cast iron.

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

The trace metal present in insulin is

Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.

Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

A dense structure of grinding wheel is not used for the

Cupola produces __________ iron.

Drills are usually made of

Also checkout

The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation of __________ mm.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

Large scale fire on fuel gas line is normally extinguished by

Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.

Gas turbine normally employs a constant __________ cycle.

Carbon supply in pack carburising process is in the form of

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.

The excess air required for the combustion of pulverised coal is of the order of about __________ percent.

During sensible cooling of air, its wet bulb temperature

M10 index of coke indicates its

Ultimate strength in tension as compared to that in shear for steel is

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

A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in __________ electrons.

Hardening of steel is not possible, unless it is heated __________ critical point.

Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.

At the point of boundary layer separation in fluid flow, the

The starting of a car takes time in winter, because the

Factor of safety is the ratio of the __________ stress to the working stress.

Which of the following materials has the poorest electrical conductivity?

Tempering of a material does not improve its

Dew point temperature always gives an indication of the __________ of the moist air.

__________ is the most important element, which controls the physical properties of steel.

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

__________ of grey cast iron produces white cast iron.

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

The trace metal present in insulin is

Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.

Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

A dense structure of grinding wheel is not used for the

Cupola produces __________ iron.

Drills are usually made of

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