Larger length & diameter water pipes are made by

Question

Larger length & diameter water pipes are made by

A. Electrical resistance welding

B. Die casting

C. Semi-centrifugal casting

D. Continuous casting

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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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The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong

A. Base and strong acid

B. Base and weak acid

C. Acid and weak base

D. None of these

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Fire refining process is employed in case of

A. Tin

B. Copper

C. Zinc

D. Aluminium

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Which of the following materials does not form adherent oxide film on surface?

A. Copper

B. Nickel

C. Aluminium

D. Gold & silver

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Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at

A. High vacuum

B. Zero pressure

C. 0°K

D. Earth's centre

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Which one can be directly solidified from gaseous state without entering into liquid state?

A. Helium

B. Oxygen

C. Carbon dioxide

D. None of these

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Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

A. Scratch

B. Indentation

C. Dynamic

D. Rebound

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Notched bar test is used for testing the __________ of a material.

A. Impact strength

B. Endurance limit

C. Machinability

D. Corrosion resistance

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Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

A. Manganese

B. Phosphorous

C. Magnesium

D. Chromium

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Screws are specified by their __________ diameters.

A. Minor

B. Major

C. Pitch

D. None of these

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The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

A. 3171P_a

B. 3567P_a

C. 1.01 × 10⁵P_a

D. 5000P_a

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Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of

A. 1 : 1

B. 1 : 2

C. 2 : 1

D. 1 : 4

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The rolling process cannot be used to produce

A. Plates

B. Rods

C. Tubes

D. Wires

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Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

A. Vickers hardness test

B. Shore scleroscope test

C. Brinell hardness test

D. Rockwell hardness test

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Particle nature of cathode rays is proved due to the fact that they

A. Travel in a straight line

B. Get deflected by magnetic electric field

C. Produce fluorescence

D. Heat the exposed material

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Which of the following is not an explosive?

A. TNT

B. CMC

C. RDX

D. Lead azide

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Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

A. Air filter

B. Fuel injector

C. Exhaust silencer

D. Battery

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Fibrous fracture is normally encountered in the __________ materials.

A. Hard

B. Elastic

C. Ductile

D. Brittle

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Use of flux during soldering is done to

A. Increase fluidity of solder by lowering its melting temperature

B. Prevent oxide formation

C. Wash away surplus solder

D. Full up the joint gap

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Recrystallisation temperature of steel is __________ °C.

A. 50

B. 300

C. 500

D. 800

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Normalising does not __________ of a metal.

A. Improve machinability & tensile strength

B. Remove internal stresses

C. Refine the structure

D. Remove strains caused by cold working

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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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Pick out the wrong statement

A. Processing of thermosetting plastics is ideally done by injection moulding

B. Processing of thermoplastics is ideally done by compression moulding

C. Mass production of seamless pipes are done by electrical resistance welding (ERW)

D. Stretch forming is a process of cold drawing

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The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the

A. Final control element

B. On-off control

C. Floating control action

D. None of these

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In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

A. Less

B. More

C. Equal

D. Unpredictable

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Pick out the wrong statement.

A. Cold cracking of a weld is due to the presence of hydrogen gas in the weld

B. True stress is given by, σ = σE (1 + εE), where σE and εE are engineering stress and engineering strain respectively

C. Phosphorous can be easily recovered in the iron blast furnace

D. High residual stress at the surface is beneficial for fatigue properties of a material

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If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

A. 2³

B. 2^3/2

C. 2^5/2

D. 2^1/3

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For separating small pieces of metal from engine oil of a car, the best separating technique is the

A. Chromatography

B. Evaporation

C. Filtration

D. Fractional distillation

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Neutrons are present in all atoms except that of

A. He

B. C

C. H

D. Ar

Discuss this answer

Broaching tools are usually made of

A. Cermets

B. High speed steel

C. Tungsten carbide

D. Stellite

Discuss this answer

Accepted Answer

C. Semi-centrifugal casting

Larger length & diameter water pipes are made by

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong

Fire refining process is employed in case of

Which of the following materials does not form adherent oxide film on surface?

Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at

Which one can be directly solidified from gaseous state without entering into liquid state?

Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

Notched bar test is used for testing the __________ of a material.

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

Screws are specified by their __________ diameters.

The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of

The rolling process cannot be used to produce

Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

Particle nature of cathode rays is proved due to the fact that they

Which of the following is not an explosive?

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

Fibrous fracture is normally encountered in the __________ materials.

Use of flux during soldering is done to

Recrystallisation temperature of steel is __________ °C.

Normalising does not __________ of a metal.

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

Pick out the wrong statement

The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the

In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

Pick out the wrong statement.

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

For separating small pieces of metal from engine oil of a car, the best separating technique is the

Neutrons are present in all atoms except that of

Broaching tools are usually made of

Also checkout

Larger length & diameter water pipes are made by

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

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

The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong

Fire refining process is employed in case of

Which of the following materials does not form adherent oxide film on surface?

Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at

Which one can be directly solidified from gaseous state without entering into liquid state?

Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________ hardness.

Notched bar test is used for testing the __________ of a material.

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

Screws are specified by their __________ diameters.

The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be

Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of

The rolling process cannot be used to produce

Which of the following hardness tests does not measure the indentation hardness of metals and alloys?

Particle nature of cathode rays is proved due to the fact that they

Which of the following is not an explosive?

Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?

Fibrous fracture is normally encountered in the __________ materials.

Use of flux during soldering is done to

Recrystallisation temperature of steel is __________ °C.

Normalising does not __________ of a metal.

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

Pick out the wrong statement

The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the

In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is

Pick out the wrong statement.

If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

For separating small pieces of metal from engine oil of a car, the best separating technique is the

Neutrons are present in all atoms except that of

Broaching tools are usually made of

Also checkout

The fugacity of liquid water at 298 K is approximately 3171 P_a. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be