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

Question

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

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The leaching solvent used in Baeyer's process for the purification of bauxite is

A. Ammonium hydroxide

B. Sodium carbonate

C. Sodium hydroxide

D. Ammonium carbonate

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The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

A. Carbon

B. Manganese

C. Both 'a' nor 'b'

D. Neither 'a' nor 'b'

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If a solid is compressed adiabatically in its elastic range, its __________ remains constant

A. Internal energy

B. Enthalpy

C. Entropy

D. Temperature

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Damage to metal surface by mechanical action is called

A. Pitting

B. Corrosion

C. Erosion

D. None of these

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In a good rimming steel

A. Carbon and silicon should be low

B. Silicon should be low but carbon should be high

C. Both silicon & carbon should be high

D. Silicon should be high but carbon should be low

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Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

A. Length of the pipe

B. Diameter of the pipe

C. Density of the fluid

D. Velocity of the fluid

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Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans?

A. Emissivity of pipe surface

B. Diameter & length of the pipe

C. Temperature of hot pipe surface & that of air in the room

D. None of these

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While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.

A. 1800

B. 2000

C. 2400

D. 3000

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Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

A. Cementite

B. Austenite

C. Martensite

D. Pearlite

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Heat flow across a hollow sphere of inner radius 'r₁' and outer radius 'r₂' is directly proportional to

A. (r₂ - r₁)/r₁. r₂

B. r₁. r₂/(r₂- r₁)

C. (r₂ + r₁)/r₁. r₂

D. r₁. r₂/(r₂ + r₁)

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In an eutectic system, two elements are completely

A. Soluble in solid state

B. Insoluble in liquid state

C. Insoluble in both solid & liquid state

D. Soluble in liquid state

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Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (Cp/Cv) ρ = specific weight of the gas)

A. √T

B. 1/√P

C. √y

D. 1/√ρ

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Powder metallurgy technique is used in the production of __________ tools.

A. Tungsten carbide

B. High carbon steel

C. High speed steel

D. Drilling

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For efficient performance of a blast furnace, the extent of reduction of Wustite (F_eO) should be

A. 100% indirect reduction

B. 100% direct reduction

C. 50-60% indirect reduction

D. 30-40% indirect reduction

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The elastic strain in copper is due to the

A. Motion of dislocations

B. Stretching of atomic bonds

C. Breakage of atomic bonds

D. None of the above

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Calorific value of __________ are almost same.

A. Lignite & anthracite coal

B. Lignite & coal gas

C. Petrol & diesel

D. Coal gas & natural gas

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Non-ferrous alloys used for making cutting tools need not have high

A. Abrasion resistance

B. Toughness

C. Red hardness

D. Cutting speed

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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

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The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T₁ and T₂ is given by

A. T₁/(T₁-T₂)

B. T₂/(T₁-T₂)

C. T₁/T₂

D. T₂/T₁

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The same volume of all gases is representative of their

A. Specific gravities

B. Densities

C. Gas characteristic constants

D. Molecular weights

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Dislocations are __________ defects.

A. Point

B. Line

C. Volume

D. None of these

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Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is

A. Alumina

B. Platinum

C. Vanadium pentoxide

D. Iron oxide

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Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

A. Burning

B. Intensive oxidation

C. Evaporation

D. None of these

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Production of a hollow product by inflation of a tube or parison is called the __________ process.

A. Blow moulding

B. Calendaring

C. Extrusion

D. Injection

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Silicon percentage in the silicon steel used for electrical appliances/equipments is

A. 0.3-0.4

B. 12-14

C. 3-4

D. 20-25

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Increase in temperature, in general results in the

A. Decrease in the viscosities of both liquids & gases

B. Increase in the viscosities of both liquids & gases

C. Increase in the viscosity of liquids and decrease in that of gases

D. Decrease in the viscosity of liquids and increase in that of gases

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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

B. Lignite

C. Water

D. Lime stone

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Notched bar test is used for testing the __________ of a material.

A. Impact strength

B. Endurance limit

C. Machinability

D. Corrosion resistance

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Pearlite comprises of

A. 87% cementite & 13% Fe

B. 87% ferrite & 13% cementite

C. 93.33% ferrite & 6.67% C

D. 87% ferrite & 13% C

Discuss this answer

Material of construction of the electrode used in the electric resistance welding is

A. Stainless steel

B. Graphite

C. Copper

D. Steel

Discuss this answer

Accepted Answer

C. Gamma rays & neutrons

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The leaching solvent used in Baeyer's process for the purification of bauxite is

The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

If a solid is compressed adiabatically in its elastic range, its __________ remains constant

Damage to metal surface by mechanical action is called

In a good rimming steel

Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans?

While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.

Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Heat flow across a hollow sphere of inner radius 'r₁' and outer radius 'r₂' is directly proportional to

In an eutectic system, two elements are completely

Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (Cp/Cv) ρ = specific weight of the gas)

Powder metallurgy technique is used in the production of __________ tools.

For efficient performance of a blast furnace, the extent of reduction of Wustite (F_eO) should be

The elastic strain in copper is due to the

Calorific value of __________ are almost same.

Non-ferrous alloys used for making cutting tools need not have high

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

The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T₁ and T₂ is given by

The same volume of all gases is representative of their

Dislocations are __________ defects.

Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

Production of a hollow product by inflation of a tube or parison is called the __________ process.

Silicon percentage in the silicon steel used for electrical appliances/equipments is

Increase in temperature, in general results in the

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

Notched bar test is used for testing the __________ of a material.

Pearlite comprises of

Material of construction of the electrode used in the electric resistance welding is

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The leaching solvent used in Baeyer's process for the purification of bauxite is

The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

If a solid is compressed adiabatically in its elastic range, its __________ remains constant

Damage to metal surface by mechanical action is called

In a good rimming steel

Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans?

While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.

Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional to

In an eutectic system, two elements are completely

Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (Cp/Cv) ρ = specific weight of the gas)

Powder metallurgy technique is used in the production of __________ tools.

For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be

The elastic strain in copper is due to the

Calorific value of __________ are almost same.

Non-ferrous alloys used for making cutting tools need not have high

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

The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 - T2)/T1. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T1 and T2 is given by

The same volume of all gases is representative of their

Dislocations are __________ defects.

Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

Production of a hollow product by inflation of a tube or parison is called the __________ process.

Silicon percentage in the silicon steel used for electrical appliances/equipments is

Increase in temperature, in general results in the

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

Notched bar test is used for testing the __________ of a material.

Pearlite comprises of

Material of construction of the electrode used in the electric resistance welding is

Also checkout

Heat flow across a hollow sphere of inner radius 'r₁' and outer radius 'r₂' is directly proportional to

For efficient performance of a blast furnace, the extent of reduction of Wustite (F_eO) should be

The efficiency of a Carnot heat engine operating between absolute temperatures T₁ and T₂ (when, T₁ > T₂) is given by (T₁ - T₂)/T₁. The co-efficient of performance (CO.P.) of a Carnot heat pump operating between T₁ and T₂ is given by