Steel produced from phosphatic iron is __________ in nature.

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Steel produced from phosphatic iron is __________ in nature.

A. Malleable

B. Ductile

C. Brittle

D. Tough

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Basic open hearth furnace (BOF) is not used for producing __________ steel.

A. Killed

B. Rimming

C. High alloy

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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The product (s) of roasting of a sulphide ore is (are)

A. Oxide only

B. Sulphate only

C. Oxide and sulphate

D. Dependent on temperature and partial pressure of oxygen & sulphur dioxide

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The following thermocouple may be used for measuring temperature upto 1873°K.

A. Chromel-alumel

B. Copper-constantan

C. Platinum-platinum rhodium

D. Iron-constantan

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Insulation of liquid surface can be achieved by __________ on top of its surface.

A. Floating hollow polypropylene spheres

B. Spraying alumina powder

C. Putting cement

D. None of these

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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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Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

A. 15

B. 25

C. 10

D. 30

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The order of a chemical reaction

A. Can be determined only experimentally

B. Can be determined from the stoichiometry of the reaction

C. Cannot be zero

D. Can be fractional

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Main constituent of bone ash is

A. Ammonium phosphate

B. Calcium phosphate

C. Animal charcoal

D. Ammonium sulphate

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A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C.

A. 370

B. 340

C. 320

D. 300

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Preheating before welding is done to

A. Make the plate softer

B. Burn oil & grease sticking to plate surfaces

C. Avoid plate distortion

D. Prevent cold cracks

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Lead is poured into the joints between two __________ pipes.

A. Cast iron

B. Steel

C. Concrete

D. Plastic

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Dies for wire drawing are generally made of

A. Mild steel

B. Stainless steel

C. Carbides

D. High carbon steel

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In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is

A. More

B. Less

C. Equal

D. Much more

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The difference between gross & net calorific values of fuel is due to the

A. Sensible heat carried away by the flue gases

B. Heat carried away by the steam from the moisture content of the fuel

C. Heat lost by radiation

D. Heat carried away by steam from the combustion of hydrogen in the fuel

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A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

A. 0

B. 0.33

C. 0.44

D. 0.25

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The elastic strain in copper is due to the

A. Motion of dislocations

B. Stretching of atomic bonds

C. Breakage of atomic bonds

D. None of the above

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Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per of steel strip.

A. 5-10

B. 1000-1500

C. 120-500

D. 1500-3000

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__________ stress cannot be sustained by a fluid in equilibrium.

A. Shear

B. Tensile

C. Compressive

D. None of these

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Dislocation cross-slip is difficult in those materials, which have

A. Large number of slip systems

B. High work hardening rate

C. Coarse grain size

D. Low stacking fault energy

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Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C is

A. 3

B. 5

C. 0.5

D. 1.5

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On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the __________ of the input signal.

A. Frequency

B. Amplitude

C. Damping

D. None of these

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The trace metal present in insulin is

A. Cu

B. Zn

C. Fe

D. Ni

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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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A dummy activity is used in PERT network to describe the

A. Precedence relationship

B. Resource idleness

C. Resource restriction

D. Necessary time delay

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Force between the molecules of the same substance is called __________ force.

A. Adhesive

B. Cohesive

C. Molecular

D. Vander Walls

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Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?

A. Styrofoam

B. Lucite

C. Perspex

D. Plexiglass

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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

Discuss this answer

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

A. 4.4

B. 5.6

C. 8.4

D. 2.4

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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

Discuss this answer

Accepted Answer

C. Brittle

Steel produced from phosphatic iron is __________ in nature.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Basic open hearth furnace (BOF) is not used for producing __________ steel.

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

The product (s) of roasting of a sulphide ore is (are)

The following thermocouple may be used for measuring temperature upto 1873°K.

Insulation of liquid surface can be achieved by __________ on top of its surface.

Shaft/rotor speed is most accurately measured by a

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

The order of a chemical reaction

Main constituent of bone ash is

A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C.

Preheating before welding is done to

Lead is poured into the joints between two __________ pipes.

Dies for wire drawing are generally made of

In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is

The difference between gross & net calorific values of fuel is due to the

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

The elastic strain in copper is due to the

Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per of steel strip.

__________ stress cannot be sustained by a fluid in equilibrium.

Dislocation cross-slip is difficult in those materials, which have

Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C is

On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the __________ of the input signal.

The trace metal present in insulin 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?

A dummy activity is used in PERT network to describe the

Force between the molecules of the same substance is called __________ force.

Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?

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

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

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

Also checkout

Steel produced from phosphatic iron is __________ in nature.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Basic open hearth furnace (BOF) is not used for producing __________ steel.

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

The product (s) of roasting of a sulphide ore is (are)

The following thermocouple may be used for measuring temperature upto 1873°K.

Insulation of liquid surface can be achieved by __________ on top of its surface.

Shaft/rotor speed is most accurately measured by a

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is __________ mm.

The order of a chemical reaction

Main constituent of bone ash is

A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C.

Preheating before welding is done to

Lead is poured into the joints between two __________ pipes.

Dies for wire drawing are generally made of

In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is

The difference between gross & net calorific values of fuel is due to the

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

The elastic strain in copper is due to the

Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________ gms of zinc per of steel strip.

__________ stress cannot be sustained by a fluid in equilibrium.

Dislocation cross-slip is difficult in those materials, which have

Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C is

On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the __________ of the input signal.

The trace metal present in insulin 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?

A dummy activity is used in PERT network to describe the

Force between the molecules of the same substance is called __________ force.

Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?

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

The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

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

Also checkout

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

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