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

A. Sorbite

B. Bainite

C. Martensite

D. Troostite

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Isotropic materials have the same __________ in all directions.

A. Induced stresses

B. Density

C. Elastic properties

D. Thermal properties

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Friction factor for fluid flow in pipe does not depend upon the

A. Pipe length

B. Pipe roughness

C. Fluid density & viscosity

D. Mass flow rate of fluid

Discuss this answer

Optical activity is a/an __________ property.

A. Additive

B. Constitutive

C. Both (A) & (B)

D. Neither (A) nor (B)

Discuss this answer

Pick out the correct statement.

A. Materials exhibiting high elasticity obey Hooke's law

B. The elastic behaviour of rubber under compression is the same as its behaviour under tension

C. The damping capacity of a material is due to its plastic deformation

D. The stress required to cause plastic flow in polycrystalline material is higher as compared to monocrystalline materials due to the presence of grains of different orientations

Discuss this answer

Rain drops falling through atmospheric air attain limited terminal velocity, because of

A. Upward thrust due to air

B. Viscous force exerted by air

C. Surface tension effects of water

D. Force of gravity

Discuss this answer

In TIG welding, thoriated tungsten electrodes are used, because it

A. Has higher current carrying capacity

B. Has better electron emissivity

C. Is stronger than ordinary tungsten

D. Is easy to prepare

Discuss this answer

Cemented carbide tools are not suitable for cutting

A. Aluminium

B. Brass

C. Cast iron

D. Steel

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

A. Tensile

B. Compressive

C. Yield

D. Bearing

Discuss this answer

Silicon percentage in acid resistant cast iron is about

A. 4

B. 8

C. 14

D. 20

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The type of pump used for lifting large quantity of sewage is a __________ pump.

A. Gear

B. Centrifugal

C. Reciprocating

D. Plunger

Discuss this answer

Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

A. Flanged iron

B. Collar

C. Flexible

D. Expansion

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

For separating small pieces of metal from engine oil of a car, the best separating technique is the

A. Chromatography

B. Evaporation

C. Filtration

D. Fractional distillation

Discuss this answer

Softening of hardened steel is done by its

A. Normalising

B. Tempering

C. Annealing

D. Carburising

Discuss this answer

Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is

A. Nickel

B. Cobalt

C. Vanadium

D. Platinum

Discuss this answer

Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.

A. Grey

B. Black

C. Opaque

D. White

Discuss this answer

Which one is neutral in character?

A. N₂O₄

B. N₂O

C. N₂O₅

D. N₂O₃

Discuss this answer

Ganister contains maximum percentage of

A. FeO

B. SiO2

C. MgO

D. MnO2

Discuss this answer

Minimum thermal efficiency of a steam boiler may be around __________ percent

A. 25

B. 45

C. 65

D. 20

Discuss this answer

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

A. 15

B. 25

C. 10

D. 30

Discuss this answer

Pick out the wrong statement.

A. Copper is the metal having the highest electronic conductivity

B. Hardenability & Weldability of metals are inversely related

C. Covalent bonding formed by sharing of electrons is present in all semi-conductor materials

D. Glass transition temperature applies to 'polymers' but not to 'glasses'

Discuss this answer

Natural water contains approximately __________ percent of heavy water.

A. 0.015

B. 0.71

C. 1.2

D. 3.5

Discuss this answer

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

A. Decreases with increase in strain hardening tendencies

B. Decreases with increase in hardness, in general

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

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

Discuss this answer

Which of the following is not a dielectric material?

A. Cotton, silk and paper

B. Asbestos, glass, porcelain and mica

C. Rubber and polymeric resins

D. All refractory materials

Discuss this answer

In chemical dehumidification process

A. Wet bulb temperature increases

B. Dry bulb temperature remains constant

C. Dew point temperature increases

D. Dry bulb temperature increases

Discuss this answer

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

A. 1

B. 10

C. 30

D. 50

Discuss this answer

Oxyacetylene reducing flame is used while carrying out welding on

A. Alloy steel

B. Grey cast iron

C. Mild steel

D. High carbon steel

Discuss this answer

The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as

A. Rigid

B. Tough

C. Ductile

D. Plastic

Discuss this answer

__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

A. Tensile

B. Fatigue

C. Impact

D. None of these

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

Accepted Answer

B. Bainite

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Isotropic materials have the same __________ in all directions.

Friction factor for fluid flow in pipe does not depend upon the

Optical activity is a/an __________ property.

Pick out the correct statement.

Rain drops falling through atmospheric air attain limited terminal velocity, because of

In TIG welding, thoriated tungsten electrodes are used, because it

Cemented carbide tools are not suitable for cutting

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

Silicon percentage in acid resistant cast iron is about

The type of pump used for lifting large quantity of sewage is a __________ pump.

Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

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

For separating small pieces of metal from engine oil of a car, the best separating technique is the

Softening of hardened steel is done by its

Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is

Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.

Which one is neutral in character?

Ganister contains maximum percentage of

Minimum thermal efficiency of a steam boiler may be around __________ percent

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

Pick out the wrong statement.

Natural water contains approximately __________ percent of heavy water.

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

Which of the following is not a dielectric material?

In chemical dehumidification process

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

Oxyacetylene reducing flame is used while carrying out welding on

The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as

__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

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

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Isotropic materials have the same __________ in all directions.

Friction factor for fluid flow in pipe does not depend upon the

Optical activity is a/an __________ property.

Pick out the correct statement.

Rain drops falling through atmospheric air attain limited terminal velocity, because of

In TIG welding, thoriated tungsten electrodes are used, because it

Cemented carbide tools are not suitable for cutting

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

Silicon percentage in acid resistant cast iron is about

The type of pump used for lifting large quantity of sewage is a __________ pump.

Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

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

For separating small pieces of metal from engine oil of a car, the best separating technique is the

Softening of hardened steel is done by its

Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is

Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body.

Which one is neutral in character?

Ganister contains maximum percentage of

Minimum thermal efficiency of a steam boiler may be around __________ percent

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is __________ mm.

Pick out the wrong statement.

Natural water contains approximately __________ percent of heavy water.

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

Which of the following is not a dielectric material?

In chemical dehumidification process

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

Oxyacetylene reducing flame is used while carrying out welding on

The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as

__________ test determines the yield strength, Young's modulus of elasticity, percentage reduction in area & percentage elongation of a material.

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

Also checkout

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.