The life of a ball bearing is inversely proportional to

Question

The life of a ball bearing is inversely proportional to

A. (Load)¹

B. (Load)²

C. (Load)³

D. (Load)^0.33

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In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?

A. Zirconia

B. Alumina

C. Bakelite

D. Tungsten carbide

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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

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Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

A. Cresylic acid

B. Xanthaies

C. Pine oil

D. All 'a' 'b' & 'c'

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While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the

A. Low impact strength

B. High flexibility

C. Better finish and surface appearance

D. High plastic deformation

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Faraday's law of electrolysis is related to the

A. Cation speed

B. Atomic number of the cation

C. Equivalent mass of the electrolyte

D. None of these

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Which of the following is the most wear resistant grade of carbide used for the cutting tools?

A. Aluminium carbide

B. Tungsten carbide

C. Nickel carbide

D. Iron carbide

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Pick out the wrong statement

A. Processing of thermosetting plastics is ideally done by injection moulding

B. Processing of thermoplastics is ideally done by compression moulding

C. Mass production of seamless pipes are done by electrical resistance welding (ERW)

D. Stretch forming is a process of cold drawing

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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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__________ joint is mostly used for joining pipes carrying water at low pressure.

A. Nipple

B. Socket

C. Union

D. Bell and spigot

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The material used for coating the welding electrode is termed as the

A. Flux

B. Slag

C. Protective layer

D. Binder

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A form of stress corrosion failure termed as 'season cracking' is generally observed in

A. Thermosetting polymers

B. High carbon steels

C. Brasses

D. Borosilicate glasses

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Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

A. Pure oxygen has been used for combustion

B. Nitrogen percentage in the fuel is very high

C. Excess air has been used for combustion

D. Hydrogen is not present in the fuel

Discuss this answer

Water-tube boiler is the one, in which

A. Water passes through tubes and flue gases around it

B. Tube carrying hot flue gases are immersed in a pool of water

C. Tubes are placed in vertical position

D. None of these

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

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The co-ordination number in simple cubic structure is

A. 4

B. 6

C. 8

D. 12

Discuss this answer

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

A. 7

B. 10

C. 12

D. 17

Discuss this answer

The pressure outside a bubble/droplet of liquid is __________ the internal pressure.

A. Greater than

B. Less than

C. Equal to

D. Unpredictable; depends on the bubble size

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

D. Both 'a' & 'b'

Discuss this answer

Cold chisels hammers are made of

A. High speed steel

B. High carbon steel

C. Forged steel

D. Mild steel

Discuss this answer

Enzymes belong to the category of

A. Proteins

B. Carbohydrates

C. Vitamins

D. Fats

Discuss this answer

Globular form of cementite is formed during the __________ process.

A. Spheroidising

B. Hardening

C. Annealing

D. Normalising

Discuss this answer

Cupola produces __________ iron.

A. Pig

B. Cast

C. Wrought

D. Carbon free

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Which of the following is the most suitable abrasive for grinding high tensile strength materials?

A. Silicon carbide

B. Corundum

C. Aluminium oxide

D. Boron carbide

Discuss this answer

Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

A. 300

B. 800

C. 1400

D. 2000

Discuss this answer

Hydrogen can be

A. Used in I.C. engines as fuel

B. Liquefied & stored under cryogenic conditions

C. Produced by electrolysis of water

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

Discuss this answer

Which one can be directly solidified from gaseous state without entering into liquid state?

A. Helium

B. Oxygen

C. Carbon dioxide

D. None of these

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__________ property of a material is determined by the Herbert Pendulum device.

A. Hardness

B. Tensile

C. Toughness

D. Compressive

Discuss this answer

For grinding of softer materials, the grinding wheel should have __________ grain size.

A. Finer

B. Coarser

C. Medium

D. Any type of

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

The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x^0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)

A. x^1.5

B. x^0.8

C. x^-1.5

D. x^-0.8

Discuss this answer

Accepted Answer

C. (Load)³

The life of a ball bearing is inversely proportional to

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?

Pick out the correct statement.

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the

Faraday's law of electrolysis is related to the

Which of the following is the most wear resistant grade of carbide used for the cutting tools?

Pick out the wrong statement

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?

__________ joint is mostly used for joining pipes carrying water at low pressure.

The material used for coating the welding electrode is termed as the

A form of stress corrosion failure termed as 'season cracking' is generally observed in

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

Water-tube boiler is the one, in which

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

The co-ordination number in simple cubic structure is

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

The pressure outside a bubble/droplet of liquid is __________ the internal pressure.

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

Cold chisels hammers are made of

Enzymes belong to the category of

Globular form of cementite is formed during the __________ process.

Cupola produces __________ iron.

Which of the following is the most suitable abrasive for grinding high tensile strength materials?

Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

Hydrogen can be

Which one can be directly solidified from gaseous state without entering into liquid state?

__________ property of a material is determined by the Herbert Pendulum device.

For grinding of softer materials, the grinding wheel should have __________ grain size.

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.

The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x^0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)

Also checkout

The life of a ball bearing is inversely proportional to

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet?

Pick out the correct statement.

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the

Faraday's law of electrolysis is related to the

Which of the following is the most wear resistant grade of carbide used for the cutting tools?

Pick out the wrong statement

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?

__________ joint is mostly used for joining pipes carrying water at low pressure.

The material used for coating the welding electrode is termed as the

A form of stress corrosion failure termed as 'season cracking' is generally observed in

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO2 = 12%, O2 = 8%, CO = nil, N2 = 80%. This flue gas composition indicates that

Water-tube boiler is the one, in which

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

The co-ordination number in simple cubic structure is

Minimum number of members required to form a Public Limited Joint Stock Com-pany is

The pressure outside a bubble/droplet of liquid is __________ the internal pressure.

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

Cold chisels hammers are made of

Enzymes belong to the category of

Globular form of cementite is formed during the __________ process.

Cupola produces __________ iron.

Which of the following is the most suitable abrasive for grinding high tensile strength materials?

Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

Hydrogen can be

Which one can be directly solidified from gaseous state without entering into liquid state?

__________ property of a material is determined by the Herbert Pendulum device.

For grinding of softer materials, the grinding wheel should have __________ grain size.

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.

The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)

Also checkout

Volumetric composition of flue gas analysed with the Orsat apparatus is : CO₂ = 12%, O₂ = 8%, CO = nil, N₂ = 80%. This flue gas composition indicates that

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.

The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x^0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)