Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are

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Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are

A. Cobalt, chromium & tungsten

B. Cobalt, chromium & nickel

C. Molybdenum, tungsten & chromium

D. Cobalt, zirconium & molybdenum

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To improve the machinability of steel, it is generally subjected to

A. Spheroidising

B. Tempering

C. Normalising

D. Annealing

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Fibrous fracture is normally encountered in the __________ materials.

A. Hard

B. Elastic

C. Ductile

D. Brittle

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__________ is not used as a material of construction in thermocouples.

A. Alumel

B. Rhodium

C. Constantan

D. Duralumin

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Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

A. Joule

B. Carnot

C. Rankine

D. Brayton

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The following type of bonding is strongly directional in solids.

A. Vander Waal's

B. Ionic

C. Metallic

D. Covalent

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The activity of pure hydrogen gas at 1000°C and 5 atm pressure

A. Is always less than 1

B. Is always greater than 1

C. Can be 5

D. Depends on the choice of the standard state

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The joint for soldering is supported by binding wire made of

A. Mild steel

B. Copper

C. Soft iron

D. Stainless steel

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The unit of gc is

A. lb_m/lb_f. ft/sec²

B. lb_f/lb_m. ft/sec²

C. ft/sec²

D. lb_m/lb_f. sec²/ft

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'Amortization' in respect of financial obligation of a company means the

A. Liquidation of financial obligations on instalment basis

B. Commitment of financial obligation on priority

C. Liquidation of all the obsolete equipments of the company

D. Modernisation of the plant equipments

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Suitability of steel for its use in cable is judged by its strength in

A. Tension

B. Compression

C. Torsion

D. Shear

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Globular form of cementite is formed during the __________ process.

A. Spheroidising

B. Hardening

C. Annealing

D. Normalising

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Steel balls are manufactured by

A. Sintering

B. Casting

C. Cold heading

D. Spinning

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Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

A. °C

B. °F

C. °K

D. °R

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Which of the following alloying elements is present in maximum percentage in high speed steel?

A. Molybdenum

B. Chromium

C. Tungsten

D. Vanadium

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__________ is the most important element, which controls the physical properties of steel.

A. Manganese

B. Silicon

C. Carbon

D. Vanadium

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Temperature attained in soldering of metals is about __________ °C.

A. 150-300

B. 400-500

C. 650-800

D. 1000-1100

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The value of for air & most common gases can be safely assumed to be

A. 0.8

B. 1

C. 1.4

D. 1.8

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Cold working of a material results in increase in hardness, which is termed as the __________ hardening.

A. Cold

B. Work

C. Age

D. Induction

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Primary designation of steel is based on its

A. Hardness & tensile strength

B. Carbon content

C. Iron content

D. Alloying elements content

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With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.

A. Supercharging

B. Wall temperature

C. Compression ratio

D. Engine speed

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In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

A. μ , α and θ all have units of m/s

B. μ , α and θ all have units of m2/s

C. α and θ have units of m2/s, while μ has unit of m/s

D. α and θ have units of m/s, while μ has unit of m2/s

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__________ is not a heat treatment process.

A. Cyaniding

B. Parkerizing

C. Austempering

D. Martempering

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The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

A. 3171P_a

B. 3567P_a

C. 1.01 × 10⁵P_a

D. 5000P_a

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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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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 used to produce draught in the locomotive boilers?

A. Chimney

B. Induced draught fan

C. Forced draught fan

D. Steam jet arrangement

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Laser welding is widely employed in the __________ industries.

A. Electronic

B. Structural

C. Process

D. Heavy

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What is the pH of distilled water?

A. 0

B. 1

C. 7

D. 14

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Unbreakable crockeries are made from __________ polymers.

A. Polystyrene

B. Melamine

C. Polystyrene

D. Polyurethane

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Wavelength of radiation emitted by a body depends on the __________ of its surface.

A. Temperature

B. Area

C. Nature

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

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Accepted Answer

A. Cobalt, chromium & tungsten

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

To improve the machinability of steel, it is generally subjected to

Fibrous fracture is normally encountered in the __________ materials.

__________ is not used as a material of construction in thermocouples.

Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

The following type of bonding is strongly directional in solids.

The activity of pure hydrogen gas at 1000°C and 5 atm pressure

The joint for soldering is supported by binding wire made of

The unit of gc is

'Amortization' in respect of financial obligation of a company means the

Suitability of steel for its use in cable is judged by its strength in

Globular form of cementite is formed during the __________ process.

Steel balls are manufactured by

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

Which of the following alloying elements is present in maximum percentage in high speed steel?

__________ is the most important element, which controls the physical properties of steel.

Temperature attained in soldering of metals is about __________ °C.

The value of for air & most common gases can be safely assumed to be

Cold working of a material results in increase in hardness, which is termed as the __________ hardening.

Primary designation of steel is based on its

With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.

In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

__________ is not a heat treatment process.

The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

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

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

Which of the following is used to produce draught in the locomotive boilers?

Laser welding is widely employed in the __________ industries.

What is the pH of distilled water?

Unbreakable crockeries are made from __________ polymers.

Wavelength of radiation emitted by a body depends on the __________ of its surface.

Also checkout

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

To improve the machinability of steel, it is generally subjected to

Fibrous fracture is normally encountered in the __________ materials.

__________ is not used as a material of construction in thermocouples.

Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.

The following type of bonding is strongly directional in solids.

The activity of pure hydrogen gas at 1000°C and 5 atm pressure

The joint for soldering is supported by binding wire made of

The unit of gc is

'Amortization' in respect of financial obligation of a company means the

Suitability of steel for its use in cable is judged by its strength in

Globular form of cementite is formed during the __________ process.

Steel balls are manufactured by

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

Which of the following alloying elements is present in maximum percentage in high speed steel?

__________ is the most important element, which controls the physical properties of steel.

Temperature attained in soldering of metals is about __________ °C.

The value of for air & most common gases can be safely assumed to be

Cold working of a material results in increase in hardness, which is termed as the __________ hardening.

Primary designation of steel is based on its

With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.

In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.

__________ is not a heat treatment process.

The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

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

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

Which of the following is used to produce draught in the locomotive boilers?

Laser welding is widely employed in the __________ industries.

What is the pH of distilled water?

Unbreakable crockeries are made from __________ polymers.

Wavelength of radiation emitted by a body depends on the __________ of its surface.

Also checkout

The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be