__________ of hard alloy and tool steel is done to make it easily machinable.

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__________ of hard alloy and tool steel is done to make it easily machinable.

A. Case carburising

B. Tempering

C. Normalising

D. Annealing

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Heat transfer by __________ is almost absent in case of fluidised bed drying operation.

A. Radiation

B. Conduction

C. Convection

D. Both (B) & (C)

Discuss this answer

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

A. Blow off cock

B. Feed check valve

C. Feed water pump

D. Stop valve

Discuss this answer

__________ iron is produced by the annealing of white cast iron.

A. Malleable

B. Nodular

C. Ductile

D. Grey

Discuss this answer

The process of removal of scale formed during hot rolling of steel is termed as

A. Descaling

B. Shot blasting

C. Pickling

D. Skimming

Discuss this answer

Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode

A. Occurs higher in the electro-chemical series of metals

B. Is exemplified by magnesium plate

C. Is much cheaper than the cathodic base material to be guarded against corrosion

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

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

Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

A. Preloaded spring

B. Piezoelectric

C. Bonded strain gauge

D. None of these

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

Hot working of lead is carried out at

A. 75°C

B. 373°K

C. 150°C

D. Room temperature

Discuss this answer

Identify the correct statement with reference to the extractive metallurgy of aluminium.

A. The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3

B. Approximately 80% of the aluminium deposited on the cathode comes from cryolite

C. Sodium is deposited along with aluminium, but is immediately vaporised

D. Anode effect sets in when the cryolite concentration goes below 40%.

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In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

A. Less

B. More

C. Equal

D. Unpredictable

Discuss this answer

Thermistors are used in __________ devices.

A. Voltage measuring

B. Temperature measuring

C. Temperature compensating

D. Both (B) & (C)

Discuss this answer

For the Stoke's law to be valid in the case of a falling sphere in a fluid, the

A. Reynolds number (based on sphere diameter) should be < 1

B. Flow around the sphere should be in turbulent region

C. Sphere must be metallic

D. Fluid density should be constant

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Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

A. 746

B. 3000

C. 1000

D. 550

Discuss this answer

In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is

A. More

B. Less

C. Equal

D. Much more

Discuss this answer

The refrigerant freon-12 is chemically

A. CCl₂F₂

B. CCl₃F

C. CClF₃

D. CCl₄F

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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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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

Hot extrusion process is not used for making

A. Cast iron pipe for domestic water supply

B. Aluminium curtain rods

C. Stainless steel tubes used in furnitures

D. Any of these

Discuss this answer

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

A. Steel

B. Cast iron

C. Aluminium

D. None of these

Discuss this answer

Which of the following equipments is used for liquid dispersion?

A. Packed column

B. Venturi scrubber

C. Bubble cap plate column

D. Wetted wall column

Discuss this answer

Hooke's law

A. Applies to elastic deformation

B. Applies beyond limit of proportionality in stress-strain curve

C. States that stress is inversely proportional to strain upto elastic limit

D. None of these

Discuss this answer

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

A. X-rays

B. γ-rays

C. α-rays

D. β-rays

Discuss this answer

Satellites burn off during re-entry to earth's atmosphere, because of the

A. Combustion with air

B. Gravitational pull by earth

C. Friction with earth's atmosphere

D. Loss in weight of the satellite

Discuss this answer

Triple point of water is

A. 0°F

B. 492°R

C. 0°K

D. -273°C

Discuss this answer

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

'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

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

Isotropic materials have the same __________ in all directions.

A. Induced stresses

B. Density

C. Elastic properties

D. Thermal properties

Discuss this answer

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

A. Time

B. Square root of time

C. Square of time

D. Cube of time

Discuss this answer

Accepted Answer

B. Tempering

__________ of hard alloy and tool steel is done to make it easily machinable.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Heat transfer by __________ is almost absent in case of fluidised bed drying operation.

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

__________ iron is produced by the annealing of white cast iron.

The process of removal of scale formed during hot rolling of steel is termed as

Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode

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

Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

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

Hot working of lead is carried out at

Identify the correct statement with reference to the extractive metallurgy of aluminium.

In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

Thermistors are used in __________ devices.

For the Stoke's law to be valid in the case of a falling sphere in a fluid, the

Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is

The refrigerant freon-12 is chemically

__________ 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 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

Hot extrusion process is not used for making

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

Which of the following equipments is used for liquid dispersion?

Hooke's law

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

Satellites burn off during re-entry to earth's atmosphere, because of the

Triple point of water is

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

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

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

Isotropic materials have the same __________ in all directions.

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

Also checkout

__________ of hard alloy and tool steel is done to make it easily machinable.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Heat transfer by __________ is almost absent in case of fluidised bed drying operation.

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

__________ iron is produced by the annealing of white cast iron.

The process of removal of scale formed during hot rolling of steel is termed as

Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode

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

Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.

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

Hot working of lead is carried out at

Identify the correct statement with reference to the extractive metallurgy of aluminium.

In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

Thermistors are used in __________ devices.

For the Stoke's law to be valid in the case of a falling sphere in a fluid, the

Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is

The refrigerant freon-12 is chemically

__________ 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 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

Hot extrusion process is not used for making

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

Which of the following equipments is used for liquid dispersion?

Hooke's law

Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.

Satellites burn off during re-entry to earth's atmosphere, because of the

Triple point of water is

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

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

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

Isotropic materials have the same __________ in all directions.

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to

Also checkout

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