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

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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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Which of the following mainly decides the current to be employed is arc welding?

A. Electrode size

B. Plate thickness

C. Voltage across the arc

D. Welded portion length

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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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Satellites burn off during re-entry to earth's atmosphere, because of the

A. Combustion with air

B. Gravitational pull by earth

C. Friction with earth's atmosphere

D. Loss in weight of the satellite

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The critical pressure at which the latent heat of vaporisation of steam becomes zero is __________ Kg/cm².

A. 273.15

B. 225.65

C. 100.03

D. 373.15

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Dew point temperature always gives an indication of the __________ of the moist air.

A. Dryness

B. Moisture content

C. Coolness

D. Latent heat

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L.D. (Linz-Donawitz) converter is used in the production of

A. Copper

B. Steel

C. Zinc

D. Aluminium

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Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is

A. 10 atm-1

B. 105 atm-1

C. 10 (dimensionless)

D. 105 (dimensionless)

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Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode

A. Occurs higher in the electro-chemical series of metals

B. Is exemplified by magnesium plate

C. Is much cheaper than the cathodic base material to be guarded against corrosion

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

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Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

A. Small punches, broaches reamers and springs

B. Cutlery, screws, rivets and files

C. Mandrels, twist drills, small lathe tools and razors

D. Forgings like can shaft, structural steel plate, threading dies and drawing dies

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Hot extrusion of aluminium is done in the temperature range of __________ °C.

A. 550-600

B. 450-500

C. 350-400

D. 250-300

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Optical activity is a/an __________ property.

A. Additive

B. Constitutive

C. Both (A) & (B)

D. Neither (A) nor (B)

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Silicon percentage in acid resistant cast iron is about

A. 4

B. 8

C. 14

D. 20

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Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented by

A.

B.

C.

D.

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Out of the following, the alloy which has equal percentage of constituents, is

A. White metal

B. Gun metal

C. Duralumin

D. Constantan

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Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

A. 2

B. 3

C. 0.8

D. 6

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Hydrogen can be

A. Used in I.C. engines as fuel

B. Liquefied & stored under cryogenic conditions

C. Produced by electrolysis of water

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

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'Ice point' is designated on Fahrenheit temperature scale by

A. 0°

B. 32°

C. 62°

D. 212°

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Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

A. Tensile strength

B. Compressive strength

C. Young's modulus

D. Thermal co-efficient of expansion

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The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

A. 60 - 100

B. 400 - 700

C. 1200 -1500

D. 2000 - 2300

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The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

A. 3

B. 7

C. 11

D. 15

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Addition of __________ to steel does not impart hardness.

A. Nickel

B. Copper

C. Chromium

D. Silicon

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Dowtherm is a

A. High temperature heating medium (a petroleum product)

B. Product of coal tar distillation

C. Very heat sensitive material

D. None of these

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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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Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

A. Admiralty brass

B. Stainless steel

C. Aluminium brass

D. Titanium

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The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system

A. Is as light as possible

B. Has very high C.O.P.

C. Employs minimum quantity of refrigerant

D. Consumer minimum horse power

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Tesla metre per ampere (T. m/A) is the unit for the measurement of

A. Magnetic susceptibility

B. Magnetic moment

C. Permeability of free space

D. Flux density

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The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following element.

A. Silicon

B. Carbon

C. Phosphorous

D. Chromium

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Rain drops falling through atmospheric air attain limited terminal velocity, because of

A. Upward thrust due to air

B. Viscous force exerted by air

C. Surface tension effects of water

D. Force of gravity

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Young's modulus of a material is the measure of its

A. Stiffness

B. Malleability

C. Creep resistance

D. Tensile strength

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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'

Discuss this answer

Accepted Answer

C. Sphere must be metallic

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following mainly decides the current to be employed is arc welding?

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?

Satellites burn off during re-entry to earth's atmosphere, because of the

The critical pressure at which the latent heat of vaporisation of steam becomes zero is __________ Kg/cm².

Dew point temperature always gives an indication of the __________ of the moist air.

L.D. (Linz-Donawitz) converter is used in the production of

Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is

Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode

Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

Hot extrusion of aluminium is done in the temperature range of __________ °C.

Optical activity is a/an __________ property.

Silicon percentage in acid resistant cast iron is about

Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented by

Out of the following, the alloy which has equal percentage of constituents, is

Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

Hydrogen can be

'Ice point' is designated on Fahrenheit temperature scale by

Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

Addition of __________ to steel does not impart hardness.

Dowtherm is a

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

Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system

Tesla metre per ampere (T. m/A) is the unit for the measurement of

The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following element.

Rain drops falling through atmospheric air attain limited terminal velocity, because of

Young's modulus of a material is the measure of its

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

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following mainly decides the current to be employed is arc welding?

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?

Satellites burn off during re-entry to earth's atmosphere, because of the

The critical pressure at which the latent heat of vaporisation of steam becomes zero is __________ Kg/cm2.

Dew point temperature always gives an indication of the __________ of the moist air.

L.D. (Linz-Donawitz) converter is used in the production of

Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is

Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode

Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

Hot extrusion of aluminium is done in the temperature range of __________ °C.

Optical activity is a/an __________ property.

Silicon percentage in acid resistant cast iron is about

Temperature profile along the length of a gasgas counter flow heat exchanger is correctly represented by

Out of the following, the alloy which has equal percentage of constituents, is

Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.

Hydrogen can be

'Ice point' is designated on Fahrenheit temperature scale by

Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.

The escape velocity of a body on earth which is independent of its mass is about __________ km/second.

Addition of __________ to steel does not impart hardness.

Dowtherm is a

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

Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system

Tesla metre per ampere (T. m/A) is the unit for the measurement of

The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following element.

Rain drops falling through atmospheric air attain limited terminal velocity, because of

Young's modulus of a material is the measure of its

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

Also checkout

The critical pressure at which the latent heat of vaporisation of steam becomes zero is __________ Kg/cm².