Oxygen cylinders used for autogenous (cutting/welding) purposes are

Question

Oxygen cylinders used for autogenous (cutting/welding) purposes are

A. Seamless & made of steel

B. Heat treated before use

C. Made by sand casting

D. Welded steel cylinders

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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'

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Annealing of cast iron

A. Softens it to facilitate machining

B. Decreases the free carbon

C. Increases the strength

D. None of these

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Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

A. 1.5

B. 3

C. 5

D. 7

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The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the

A. Pipe roughness & pipe diameter

B. Fluid velocity

C. Type of flowing fluid

D. Both 'b' & 'c'

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Atomic __________ is a whole number for an element.

A. Number

B. Weight

C. Radius

D. None of these

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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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Normalising of an object does not

A. Refine coarse grain structure obtained during hot working

B. Improve ductility

C. Improve yield strength

D. Improve mechanical properties

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

A. Octane number of fuel is decreased

B. Fuel supply for ignition is not sufficient

C. Vaporisation of the fuel is decreased

D. Pour point of fuel decreases

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Case hardening of a material is

A. Followed by tempering or carburising

B. Preceded by its tempering

C. Done to get a soft ductile interior with a very hard surface

D. Carried out to get extreme hardness in its core

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Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.

A. 10

B. 20

C. 30

D. 40

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The condition of diffraction from a crystal is given by

A. nλ = 2d Sin θ

B. λ = d Sin 2θ

C. λ = 2d Sin 2θ

D. nλ = d Sin θ

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Pick out the correct statement

A. Jet engine can work, where there is no atmosphere

B. Rocket engines cannot work, where there is no atmosphere

C. Rocket engines carry oxygen required for the combustion in the form of oxidiser

D. Jet engines also carry oxidiser

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Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

A. +4000

B. -4000

C. 10000

D. -10000

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An abrupt and sudden fall in the reading of barometer is an indication of the

A. Storm

B. Rain

C. Clear weather

D. Cold wave

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Nickel and __________ are the alloying element added in steel to increase its toughness.

A. Molybdenum

B. Chromium

C. Vanadium

D. Silicon

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The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.

A. 768

B. 908

C. 1400

D. 1539

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Methyl orange indicator turns

A. Orange yellow in alkaline medium

B. Orange yellow in acidic medium

C. Colourless in acidic medium

D. Colourless in basic medium

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The swift cup test evaluates the following property of a sheet metal.

A. Stretchability

B. Drawability

C. Bendability

D. None of these

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Which of the following does not discharge the dust collected as a dry solid?

A. Electrostatic precipitator

B. Wet scrubber

C. Bag filter

D. Gravity settling chamber

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Which of the following properties of a solid is not dependent on crystal imperfection?

A. Ductility

B. Semi-conductivity

C. Melting point

D. Yield stress

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Which of the following is a commonly used manometric liquid for low pressure range?

A. Ethyl alcohol

B. Carbon tetrachloride

C. Glycerol

D. Ethylene glycol

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A material subjected __________ must have high resilience.

A. Shock loading

B. Vibration

C. Fatigue

D. Tension

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__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

A. Stellite

B. High speed steel

C. Cermet

D. Alnico

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Austempering process results in the formation of __________ structure.

A. Martensitic

B. Bainitic

C. Carburised

D. Stressed

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Air intake for an air compressor should be preferably taken from

A. A site, where cooling towers are located nearby

B. A site, where open coal yard in located nearby

C. An air conditioned room maintained at a temperature of 18°C

D. An outside atmosphere at 10°C

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Wrought iron is not

A. Ductile & resistant to corrosion/rusting

B. Weldable easily

C. Having uniform strength in all directions

D. Having maximum tensile strength along the lines of slag distribution

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Which of the following has the highest modulus of elasticity (about 7 × 10⁶ kg/cm²)?

A. High speed steel

B. Stainless steel

C. Tungsten carbide

D. Superalloys

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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

Discuss this answer

Density in the solid state is slightly less than that in its liquid state, in case of

A. Carbon dioxide

B. Water

C. Mercury

D. None of these

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The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic law of oxidation is given by

A.

B.

C.

D.

Discuss this answer

Accepted Answer

A. Seamless & made of steel

Oxygen cylinders used for autogenous (cutting/welding) purposes are

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

Annealing of cast iron

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the

Atomic __________ is a whole number for an element.

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)

Normalising of an object does not

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

Case hardening of a material is

Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.

The condition of diffraction from a crystal is given by

Pick out the correct statement

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

An abrupt and sudden fall in the reading of barometer is an indication of the

Nickel and __________ are the alloying element added in steel to increase its toughness.

The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.

Methyl orange indicator turns

The swift cup test evaluates the following property of a sheet metal.

Which of the following does not discharge the dust collected as a dry solid?

Which of the following properties of a solid is not dependent on crystal imperfection?

Which of the following is a commonly used manometric liquid for low pressure range?

A material subjected __________ must have high resilience.

__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

Austempering process results in the formation of __________ structure.

Air intake for an air compressor should be preferably taken from

Wrought iron is not

Which of the following has the highest modulus of elasticity (about 7 × 10⁶ kg/cm²)?

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

Density in the solid state is slightly less than that in its liquid state, in case of

The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic law of oxidation is given by

Also checkout

Oxygen cylinders used for autogenous (cutting/welding) purposes are

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

Annealing of cast iron

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the

Atomic __________ is a whole number for an element.

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)

Normalising of an object does not

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

Case hardening of a material is

Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.

The condition of diffraction from a crystal is given by

Pick out the correct statement

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

An abrupt and sudden fall in the reading of barometer is an indication of the

Nickel and __________ are the alloying element added in steel to increase its toughness.

The temperature at which the magnetic property of iron disappears (i.e., it becomes non-magnetic) and its electrical conductivity & specific heat also changes, is called the 'Curie point', which is __________ °C.

Methyl orange indicator turns

The swift cup test evaluates the following property of a sheet metal.

Which of the following does not discharge the dust collected as a dry solid?

Which of the following properties of a solid is not dependent on crystal imperfection?

Which of the following is a commonly used manometric liquid for low pressure range?

A material subjected __________ must have high resilience.

__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

Austempering process results in the formation of __________ structure.

Air intake for an air compressor should be preferably taken from

Wrought iron is not

Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?

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

Density in the solid state is slightly less than that in its liquid state, in case of

The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic law of oxidation is given by

Also checkout

Which of the following has the highest modulus of elasticity (about 7 × 10⁶ kg/cm²)?