Gratings is associated with the measurement of

Question

Gratings is associated with the measurement of

A. Linear displacement

B. Concavity/convexity

C. Surface texture

D. Flatness

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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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If Reynolds number is greater than 1, then the

A. Viscous force is larger than the inertia force

B. Inertia force is larger than the viscous force

C. Inertia force is larger than the surface tension force

D. Inertia force is larger than the gravitational force

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The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

A. Parabolic

B. Hyperbolic

C. Straight line

D. None of these

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Fibrous fracture is normally encountered in the __________ materials.

A. Hard

B. Elastic

C. Ductile

D. Brittle

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A jet engine turbine blade is normally manufactured by

A. Forging

B. Shell moulding

C. Investment casting

D. Pressure die casting

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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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Pick out the wrong statement.

A. Copper is the metal having the highest electronic conductivity

B. Hardenability & Weldability of metals are inversely related

C. Covalent bonding formed by sharing of electrons is present in all semi-conductor materials

D. Glass transition temperature applies to 'polymers' but not to 'glasses'

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__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

A. Collar

B. Flanged

C. Bell and Spigot

D. Expansion

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Which of the following is a boiler accessory
i.e., not a boiler mounting?

A. Blow off cock

B. Feed check valve

C. Feed water pump

D. Stop valve

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Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

A. 1

B. 10

C. 30

D. 50

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In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

A. Range is 15°F

B. Approach is 10°F

C. Both (A) & (B)

D. Neither (A) nor (B)

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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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Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.

A. Invar

B. Hastelloy

C. Duralumin

D. Monel metal

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Saturated steam at a pressure of 25 kg/cm² is throttled to attain 5 kg/cm². Then the outcoming steam will be

A. Wet

B. Saturated

C. Superheated

D. None of these

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A steam carrying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

A. Increase

B. Decrease

C. Remain unaffected

D. May increase or decrease; depends on the thickness of each layer

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Silicon percentage in silicon steel used for electrical equipments is about

A. 1

B. 4.0

C. 8

D. 14

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An alloy of Fe - 0.4 % C is

A. Cast iron

B. Hypo-eutectoid steel

C. Hyper-eutectoid steel

D. Eutectoid steel

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During sensible heating of humid air

A. Relative humidity increases

B. Dew point remains constant

C. Dry bulb & wet bulb temperature increases

D. Both 'b' & 'c'

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Stellite is a __________ material.

A. Ferrous

B. Ceramic

C. Cemented carbide

D. Non-ferrous cast alloy cutting tool

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__________ has a negative co-efficient of linear expansion.

A. Iron

B. Copper

C. Rubber

D. Nickel

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A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

A. -0.8

B. 0.8

C. +0.08

D. -0.24

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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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Eutectoid composition of carbon steel at room temperature is

A. Cementite

B. Pearlite

C. Martensite

D. Ferrite

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The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability?

A. Lead

B. Copper

C. Aluminium

D. Wrought iron

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Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

A. Atoms

B. Neutrons

C. Nucleons

D. Electrons

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A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

A. 150

B. 200

C. 300

D. 400

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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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A reduction in thermal resistance during heat transfer does not occur in the

A. Convection heat transfer by stirring the fluid and cleaning the heating surface

B. Conduction heat transfer by reduction in the material thickness and increase in the thermal conductivity

C. Radiation heat transfer by increasing the temperature and reducing the emissivity

D. None of these

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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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Increasing sulphur content in pig iron tends to make it

A. Soft

B. Hard

C. Tough

D. Ductile & malleable

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Accepted Answer

A. Linear displacement

Gratings is associated with the measurement of

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

If Reynolds number is greater than 1, then the

The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

Fibrous fracture is normally encountered in the __________ materials.

A jet engine turbine blade is normally manufactured by

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

Pick out the wrong statement.

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

Which of the following is a boiler accessory
i.e., not a boiler mounting?

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

Globular form of cementite is formed during the __________ process.

Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.

Saturated steam at a pressure of 25 kg/cm² is throttled to attain 5 kg/cm². Then the outcoming steam will be

A steam carrying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

Silicon percentage in silicon steel used for electrical equipments is about

An alloy of Fe - 0.4 % C is

During sensible heating of humid air

Stellite is a __________ material.

__________ has a negative co-efficient of linear expansion.

A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

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

Eutectoid composition of carbon steel at room temperature is

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability?

Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

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 reduction in thermal resistance during heat transfer does not occur in the

The condition of diffraction from a crystal is given by

Increasing sulphur content in pig iron tends to make it

Also checkout

Gratings is associated with the measurement of

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

If Reynolds number is greater than 1, then the

The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

Fibrous fracture is normally encountered in the __________ materials.

A jet engine turbine blade is normally manufactured by

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

Pick out the wrong statement.

__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently.

Which of the following is a boiler accessory i.e., not a boiler mounting?

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

Globular form of cementite is formed during the __________ process.

Metallic surveying tapes are made of __________ which has a low co-efficient of expansion & enough strength.

Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam will be

A steam carrying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

Silicon percentage in silicon steel used for electrical equipments is about

An alloy of Fe - 0.4 % C is

During sensible heating of humid air

Stellite is a __________ material.

__________ has a negative co-efficient of linear expansion.

A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

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

Eutectoid composition of carbon steel at room temperature is

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability?

Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.

A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

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 reduction in thermal resistance during heat transfer does not occur in the

The condition of diffraction from a crystal is given by

Increasing sulphur content in pig iron tends to make it

Also checkout

Which of the following is a boiler accessory
i.e., not a boiler mounting?

Saturated steam at a pressure of 25 kg/cm² is throttled to attain 5 kg/cm². Then the outcoming steam will be