The same volume of all gases is representative of their

Question

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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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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The two elements required to form substitutional solid solution should not have

A. Same crystalline structure

B. Same valency

C. Widely differing electronegativity

D. Same atomic sizes

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Which one is neutral in character?

A. N₂O₄

B. N₂O

C. N₂O₅

D. N₂O₃

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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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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 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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Which of the following is an acidic constituent of B.F. slag?

A.

B. FeO

C. MgO

D. CaO

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The most serious manufacturing defect from fracture toughness point of view is

A. Surface roughness

B. Pores

C. Spherical inclusion

D. Crack

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Boiling point of water gets lowered at high altitudes (e.g., hills), because

A. Temperature is low

B. Atmospheric pressure is low

C. Atmospheric pressure is high

D. None of these

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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

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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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Which of the following has the highest value of refractive index?

A. Brine (sea water)

B. Diamond

C. Distilled water

D. Glass

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__________ property of steel increases by addition of large amount of silicon in it.

A. Mechanical

B. Machining

C. Magnetic

D. Refractory

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Holes for riveting purposes should be preferably made by

A. Cutting torch

B. Drilling

C. Punching

D. None of these

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Sudden fall of atmospheric pressure by a large amount is an indication of the

A. Rain

B. Cold wave

C. Storm

D. Fair weather

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An oxidation process is accompanied with decrease in the

A. Number of electrons

B. Oxidation number

C. Number of ions

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

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Dephosphorization of molten pig iron is favoured by

A. Oxidising and basic slag

B. Reducing and basic slag

C. High activity co-efficient of phosphorous in metal

D. Oxidising and neutral slag

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__________ is the most suitable lubricant for drawing mild steel wires?

A. Kerosene

B. Water

C. Sodium stearate

D. Lime water

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Materials having resistivity ranging from 1 to 100 ohm. cm is termed as

A. Conductor

B. Insulator

C. Semi-conductor

D. None of these

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Which of the following is the correct nature of shear stress distribution along the cross section in a horizontal circular pipe under steady state fluid flow condition?

A.

B.

C.

D.

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The refractory lining of the bottom in a basic electric arc furnace is made of

A. Silica

B. Alumina

C. Magnesia

D. Fireclay

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For a spontaneous natural process at constant temperature and pressure, the free energy of the system always

A. Increases

B. Decreases

C. Remain constant

D. Increases to a maximum before decreasing

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Gas turbine normally employs a constant __________ cycle.

A. Pressure

B. Temperature

C. Volume

D. None of these

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Blow off cock is provided in steam boiler to

A. Guard the boiler in case of abnormal rise in steam pressure

B. Drain out water and sludge during its repair

C. Regulate the supply of water in boiler

D. Put out the fire in the furnace when the water level in the boiler falls to unsafe limit

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Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

A. Annealing

B. Toughening

C. Work hardening

D. Tempering

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The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

A. Equal to

B. Greater than

C. Less than

D. Either (A), (B) or (C); depends on the size of atom

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__________ is not used as the control rod material in a nuclear reactor.

A. Cobalt

B. Hafnium

C. Cadmium

D. Boron

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Diamagnetic materials

A. Are magnetised by eddy currents only

B. Are non-magnetic and cannot be magnetised

C. Are magnetised in direction opposite to the magnetic field

D. Can be magnetised in one direction only

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Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

A. 723

B. 959

C. 1147

D. 1493

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Identify the correct statement.

A. Sphlerite is zinc oxide

B. The first law of the thermodynamics is stated as δE = δQ - δW

C. Lead can be produced in a blast furnace

D. T. ferrooxidans is a fungus that can be used for leaching chalcopyrite

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Accepted Answer

D. Molecular weights

The same volume of all gases is representative of their

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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?

The two elements required to form substitutional solid solution should not have

Which one is neutral in character?

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

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

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

Which of the following is an acidic constituent of B.F. slag?

The most serious manufacturing defect from fracture toughness point of view is

Boiling point of water gets lowered at high altitudes (e.g., hills), because

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)

Pick out the correct statement

Which of the following has the highest value of refractive index?

__________ property of steel increases by addition of large amount of silicon in it.

Holes for riveting purposes should be preferably made by

Sudden fall of atmospheric pressure by a large amount is an indication of the

An oxidation process is accompanied with decrease in the

Dephosphorization of molten pig iron is favoured by

__________ is the most suitable lubricant for drawing mild steel wires?

Materials having resistivity ranging from 1 to 100 ohm. cm is termed as

Which of the following is the correct nature of shear stress distribution along the cross section in a horizontal circular pipe under steady state fluid flow condition?

The refractory lining of the bottom in a basic electric arc furnace is made of

For a spontaneous natural process at constant temperature and pressure, the free energy of the system always

Gas turbine normally employs a constant __________ cycle.

Blow off cock is provided in steam boiler to

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

__________ is not used as the control rod material in a nuclear reactor.

Diamagnetic materials

Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

Identify the correct statement.

Also checkout

The same volume of all gases is representative of their

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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?

The two elements required to form substitutional solid solution should not have

Which one is neutral in character?

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

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

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

Which of the following is an acidic constituent of B.F. slag?

The most serious manufacturing defect from fracture toughness point of view is

Boiling point of water gets lowered at high altitudes (e.g., hills), because

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)

Pick out the correct statement

Which of the following has the highest value of refractive index?

__________ property of steel increases by addition of large amount of silicon in it.

Holes for riveting purposes should be preferably made by

Sudden fall of atmospheric pressure by a large amount is an indication of the

An oxidation process is accompanied with decrease in the

Dephosphorization of molten pig iron is favoured by

__________ is the most suitable lubricant for drawing mild steel wires?

Materials having resistivity ranging from 1 to 100 ohm. cm is termed as

Which of the following is the correct nature of shear stress distribution along the cross section in a horizontal circular pipe under steady state fluid flow condition?

The refractory lining of the bottom in a basic electric arc furnace is made of

For a spontaneous natural process at constant temperature and pressure, the free energy of the system always

Gas turbine normally employs a constant __________ cycle.

Blow off cock is provided in steam boiler to

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

__________ is not used as the control rod material in a nuclear reactor.

Diamagnetic materials

Eutectic reaction for iron-carbon system occurs at a temperature of __________ °C.

Identify the correct statement.

Also checkout

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)