The most abundant metal present in the earth's crust is;

Question

The most abundant metal present in the earth's crust is;

A. Iron

B. Copper

C. Titanium

D. Aluminium

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The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost double.

A. Flow output

B. Head developed

C. Overall efficiency

D. Weight

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Maximum consumption of limestone is in the __________ industry.

A. Iron and steel

B. Cement

C. Glass

D. Fertiliser

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Which of the following fastening devices has a head at one end and a nut fitted to the other?

A. Bolt

B. Stud

C. Top bolt

D. None of these

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Cast iron contains __________ percent carbon.

A. 2.5

B. 3.75

C. 4.75

D. 5.25

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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 wrong statement about nucleate boiling.

A. Bubble generation is by expansion of entrapped gas/vapour at small cavities in the surface

B. Surface temperature is greater than the saturation temperature of the liquid

C. Heat transfer from the surface of the liquid is less than that in film boiling

D. The temperature is less than that of film boiling

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Thermal conductivity of a material does not depend upon its

A. Mass

B. Volume

C. Surface area

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

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X-rays are

A. Positively charged

B. Negatively charged

C. Neutral

D. Of higher wavelength than visible light

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On being hit with a hammer, __________ will readily fracture.

A. Brass

B. Mild steel

C. Cast iron

D. Lead

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Vernier calipers cannot be used to measure the

A. I.D. & O.D. of the shaft

B. Thickness of parts

C. Depth of holes

D. Clearance between two mating surfaces

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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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Electrolytic reduction cell used for conversion of calcined Al₂O₃ to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace is to

A. Achieve very high purity of aluminium (99.9%)

B. Keep the electrolyte in liquid condition by the generation of heat

C. Electrolytically dissociate alumina

D. Both (B) & (C)

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Annealing of white cast iron produces __________ iron.

A. Grey

B. Nodular

C. Malleable

D. Spheroidal

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Iron content in Indian iron ore is about __________ percent.

A. 80-85

B. 60-65

C. 40-45

D. 20-25

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Constituents of stellite are

A. Zinc, copper & nickel

B. Cobalt, chromium & tungsten

C. Zinc, aluminium & nickel

D. Nickel, cobalt & vanadium

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Corrosion of metals cannot be prevented by its

A. Tempering

B. Chromising

C. Aluminising

D. Alloying

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The material used for coating the welding electrode is termed as the

A. Flux

B. Slag

C. Protective layer

D. Binder

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__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

A. Stellite

B. High speed steel

C. Cermet

D. Alnico

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Superheating of steam is done at constant

A. Enthalpy

B. Entropy

C. Pressure

D. Volume

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A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place

A. The better insulation material should be put just next to pipe (i.e., inside)

B. The better insulating material should be put outside

C. Either of the insulating material could be put on either side

D. Steam temperature is considered before deciding as to which insulating material is to be put inside (i.e., just next to the pipe)

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Screws are specified by their __________ diameters.

A. Minor

B. Major

C. Pitch

D. None of these

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Pressure required to increase the density of water by about 1% is __________ atmosphere.

A. 10

B. 50

C. 200

D. 1000

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For an ideal gas, C_p - C_v is

A. R

B. -R

C. 0

D. (3/2) R

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Window panes of aeroplanes are normally made of

A. Perspex (PMMA)

B. Teflon (PTFE)

C. Bakelite (phenol formaldehyde)

D. Polystyrene

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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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The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

A. Refrigerant cooling

B. Evaporator

C. Condenser

D. Throttling

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Potable water means the water used for

A. Fire-fighting

B. Cooling

C. Drinking

D. Evaporation to produce steam

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In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.

A. Percentage elongation

B. Brinell hardness

C. Tensile strength

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

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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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A jig is used while __________ a hole.

A. Boring

B. Counter boring

C. Drilling

D. Enlarging

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Accepted Answer

D. Aluminium

The most abundant metal present in the earth's crust is;

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost double.

Maximum consumption of limestone is in the __________ industry.

Which of the following fastening devices has a head at one end and a nut fitted to the other?

Cast iron contains __________ percent carbon.

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 wrong statement about nucleate boiling.

Thermal conductivity of a material does not depend upon its

X-rays are

On being hit with a hammer, __________ will readily fracture.

Vernier calipers cannot be used to measure the

Which of the following is preferred for riveting?

Electrolytic reduction cell used for conversion of calcined Al₂O₃ to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace is to

Annealing of white cast iron produces __________ iron.

Iron content in Indian iron ore is about __________ percent.

Constituents of stellite are

Corrosion of metals cannot be prevented by its

The material used for coating the welding electrode is termed as the

__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

Superheating of steam is done at constant

A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place

Screws are specified by their __________ diameters.

Pressure required to increase the density of water by about 1% is __________ atmosphere.

For an ideal gas, C_p - C_v is

Window panes of aeroplanes are normally made of

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

The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

Potable water means the water used for

In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.

Gas turbine normally employs a constant __________ cycle.

A jig is used while __________ a hole.

Also checkout

The most abundant metal present in the earth's crust is;

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost double.

Maximum consumption of limestone is in the __________ industry.

Which of the following fastening devices has a head at one end and a nut fitted to the other?

Cast iron contains __________ percent carbon.

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 wrong statement about nucleate boiling.

Thermal conductivity of a material does not depend upon its

X-rays are

On being hit with a hammer, __________ will readily fracture.

Vernier calipers cannot be used to measure the

Which of the following is preferred for riveting?

Electrolytic reduction cell used for conversion of calcined Al2O3 to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace is to

Annealing of white cast iron produces __________ iron.

Iron content in Indian iron ore is about __________ percent.

Constituents of stellite are

Corrosion of metals cannot be prevented by its

The material used for coating the welding electrode is termed as the

__________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.

Superheating of steam is done at constant

A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place

Screws are specified by their __________ diameters.

Pressure required to increase the density of water by about 1% is __________ atmosphere.

For an ideal gas, Cp - Cv is

Window panes of aeroplanes are normally made of

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

The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

Potable water means the water used for

In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.

Gas turbine normally employs a constant __________ cycle.

A jig is used while __________ a hole.

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)

Electrolytic reduction cell used for conversion of calcined Al₂O₃ to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace is to

For an ideal gas, C_p - C_v is