Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type

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Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type

A. Parallel flow with equal heat capacities

B. Counter flow with equal heat capacities

C. Counter flow with unequal heat capacities

D. Parallel flow with unequal heat capacities

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A material is capable of resisting softening at high temperature, because of its property termed as

A. Hot temper

B. Hot hardness

C. Fatigue

D. Creep

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Hydrogen in liquid steels is dissolved

A. As tiny gas bubbles

B. In the atomic form

C. In the ionic form

D. In the molecular form

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Which of the following is an example of stress corrosion?

A. Season cracking of brass

B. Caustic embrittlement of steel

C. Both (A) & (B)

D. Neither (A) nor (B)

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Coarse grained steels have

A. Low toughness

B. No tendency to distort

C. High density

D. Very high toughness

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Yield strength of a polycrystalline metal with an average grain size d, is proportional to

A. d^1/2

B. d^-1/2

C. d

D. d^-1

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The ratio of the shear stress to the principal stress on a principal plane is

A. 0

B. 1

C. 1/2

D. 1/3

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Nickel is a __________ material.

A. Ferromagnetic

B. Semi-conductor

C. Paramagnetic

D. Ferroelectric

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__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

A. Borosilicate

B. High silica

C. Supermax

D. Lead

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__________ fluid force is not considered in the Navier-Stokes equation.

A. Turbulent

B. Viscous

C. Gravity

D. Pressure

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Shaft/rotor speed is most accurately measured by a

A. Frequency counter

B. Tachometer

C. Strobometer

D. Speedometer

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Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.

A. Bomb

B. Throttling

C. Junker's

D. Boy's

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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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__________ of austenite decreases the hardenability in steel.

A. Fine grains

B. Coarse grains

C. Homogeneity

D. Dissolved elements (except cobalt)

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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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According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

A. 0.5

B. 2

C. √2

D. √3/2

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A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

A. √(Particle diameter)

B. Particle diameter

C. (Particle diameter)²

D. (Particle diameter)³

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Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

A. SiO2

B. Al2O3

C. MnO2

D. P

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Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.

A. 10^-3

B. 10³

C. 10^-15

D. 10¹⁵

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Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C.

A. 80-120

B. 200-300

C. 600-800

D. 1000-1100

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Corrosion is

A. A physical phenomenon

B. A chemical phenomenon

C. Same as erosion

D. An uncontrollable phenomenon

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Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.

A. Parting

B. Synthetic

C. Loam

D. Dry

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Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?

A. Anodising

B. Tempering

C. Carburising

D. Annealing

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Which of the following metals reacts violently with water?

A. Mercury

B. Sodium

C. Calcium

D. Magnesium

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Temper brittleness of a material can be fairly detected by the __________ test.

A. Fatigue

B. Notched bar impact

C. Tensile

D. Hardness

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Which of the following is preferred for riveting?

A. Lap joint

B. Butt joint

C. Either (A) or (B)

D. Neither (A) nor (B)

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For the Stoke's law to be valid in the case of a falling sphere in a fluid, the

A. Reynolds number (based on sphere diameter) should be < 1

B. Flow around the sphere should be in turbulent region

C. Sphere must be metallic

D. Fluid density should be constant

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As the fluid flow rate increases, the float of the Rotameter

A. Rises in the tube

B. Rotates at higher speed

C. Rotates at lower speed

D. Drops down in the tube

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Corrosion of metals cannot be prevented by its

A. Tempering

B. Chromising

C. Aluminising

D. Alloying

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Baffles provided on the shell side of a shell and tube heat exchanger are meant for

A. Providing support for the tubes

B. Improving heat transfer

C. Both 'a' & 'b'

D. Preventing the fouling of tubes & stagnation of shell side fluid

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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

Discuss this answer

Accepted Answer

B. Counter flow with equal heat capacities

Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

A material is capable of resisting softening at high temperature, because of its property termed as

Hydrogen in liquid steels is dissolved

Which of the following is an example of stress corrosion?

Coarse grained steels have

Yield strength of a polycrystalline metal with an average grain size d, is proportional to

The ratio of the shear stress to the principal stress on a principal plane is

Nickel is a __________ material.

__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

__________ fluid force is not considered in the Navier-Stokes equation.

Shaft/rotor speed is most accurately measured by a

Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.

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

__________ of austenite decreases the hardenability in steel.

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)

According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.

Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C.

Corrosion is

Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.

Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?

Which of the following metals reacts violently with water?

Temper brittleness of a material can be fairly detected by the __________ test.

Which of the following is preferred for riveting?

For the Stoke's law to be valid in the case of a falling sphere in a fluid, the

As the fluid flow rate increases, the float of the Rotameter

Corrosion of metals cannot be prevented by its

Baffles provided on the shell side of a shell and tube heat exchanger are meant for

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

Also checkout

Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

A material is capable of resisting softening at high temperature, because of its property termed as

Hydrogen in liquid steels is dissolved

Which of the following is an example of stress corrosion?

Coarse grained steels have

Yield strength of a polycrystalline metal with an average grain size d, is proportional to

The ratio of the shear stress to the principal stress on a principal plane is

Nickel is a __________ material.

__________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.

__________ fluid force is not considered in the Navier-Stokes equation.

Shaft/rotor speed is most accurately measured by a

Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter.

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

__________ of austenite decreases the hardenability in steel.

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)

According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.

A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.

Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C.

Corrosion is

Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.

Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?

Which of the following metals reacts violently with water?

Temper brittleness of a material can be fairly detected by the __________ test.

Which of the following is preferred for riveting?

For the Stoke's law to be valid in the case of a falling sphere in a fluid, the

As the fluid flow rate increases, the float of the Rotameter

Corrosion of metals cannot be prevented by its

Baffles provided on the shell side of a shell and tube heat exchanger are meant for

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

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)