Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

Question

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

A. Burning

B. Intensive oxidation

C. Evaporation

D. None of these

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Milk is fat dispersed in water. It is an example of

A. Suspension

B. Emulsion

C. Gel

D. Solution

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Heating of ferromagnetic materials to a temperature above Curie temperature makes it

A. Insulator for heat & electricity transmission

B. Ferritic

C. Behave like paramagnetic materials

D. Superconductor

Discuss this answer

Alloy powder manufactured by the following process have spherical shapes.

A. Electrochemical deposition

B. Gaseous reduction

C. Atomisation

D. Mechanical attrition

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In inventory control theory, the economic order quantity (EOQ) is the

A. Lot size corresponding to break even analysis

B. Average level of inventory

C. Optimum lot size

D. None of these

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At the point of boundary layer separation in fluid flow, the

A. Shear stress is maximum

B. Velocity gradient is flat

C. Density variation is maximum

D. Shear stress is zero

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Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

A. Retained austenite

B. Martensite formation

C. Relatively high sulphur content in the base metal

D. Sufficient hydrogen present in the welding arc

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Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

A. 1

B. 10

C. 30

D. 50

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Unit of surface tension in S.I. unit is

A. Watt/m

B. Joule/

C. Newton/

D. Joule/m

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High relative humidity decreases the evaporative process and as the temperature is increased, the relative humidity decreases. The comfort range for human body is the ambient temperature of 22 to 27°C with relative humidity ranging from __________ percent.

A. 5 to 10

B. 15 to 25

C. 45 to 50

D. 75 to 80

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The product out from a cupola is called

A. Wrought iron

B. Pig iron

C. Cast iron

D. None of these

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Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

A. 1.5

B. 3

C. 5

D. 7

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The underground well of a biogas plant is called the

A. Septic tank

B. Oxidation well

C. Digestor

D. Lagoon

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Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.

A. Horizontal

B. Vertical

C. Inclined

D. Any

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Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

A. V/A

B. V/A²

C. V²/A

D. V²/A²

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The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres

A. 25

B. 35

C. 55

D. 75

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Production of a hollow product by inflation of a tube or parison is called the __________ process.

A. Blow moulding

B. Calendaring

C. Extrusion

D. Injection

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With increase in temperature, the surface tension of water

A. Increases

B. Decreases

C. Remain constant

D. Increases linearly

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Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

A. Grashoff number

B. Grashoff number & Reynolds number

C. Reynolds number

D. Grashoff number & Prandtl number

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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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Main constituent of bone ash is

A. Ammonium phosphate

B. Calcium phosphate

C. Animal charcoal

D. Ammonium sulphate

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Wrought iron is never shaped by

A. Casting

B. Cold working

C. Forging

D. Welding

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Carbon supply in pack carburising process is in the form of

A. Charcoal

B. Calcium carbide

C. Hydrocarbon oil

D. Graphite

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Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent in steel.

A. 0.01 to 0.10

B. 0.2 to 0.4

C. 0.5 to 0.7

D. 0.8 to 1.0

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A material being tested for endurance strength is subjected to the __________ load.

A. Impact

B. Completely reversed

C. Dynamic

D. Static & dynamic

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Pick out the wrong statement about coating/electroplating of metals.

A. Phosphate coating is used as an excellent base for paints & enamels

B. Phosphate coating is less corrosion resistant than chromate coating

C. The base metal to be electroplated is normally made the cathode of the electrolytic cell and coating metal is made the anode

D. Calorising is the process of coating steel with chromium

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Stainless steel is welded using

A. Oxy-acetylene flame

B. Oxy-hydrogen flame

C. Arc welding

D. Inert gas arc welding

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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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Viscoelastic behaviour is observed in __________ materials.

A. Non-crystalline organic polymeric

B. Ceramic

C. All crystalline

D. All amorphous

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Limestone is added in the blast furnace (during pig iron manufacture) to

A. Form slag by combining with impurities

B. Supply heat by undergoing exothermic reaction with impurities

C. Reduce the coke consumption

D. Reduce slag viscosity

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__________ flux is used for the extraction of metal from its self fluxing ores.

A. No

B. Acid

C. Basic

D. Neutral

Discuss this answer

Accepted Answer

B. Intensive oxidation

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Milk is fat dispersed in water. It is an example of

Heating of ferromagnetic materials to a temperature above Curie temperature makes it

Alloy powder manufactured by the following process have spherical shapes.

In inventory control theory, the economic order quantity (EOQ) is the

At the point of boundary layer separation in fluid flow, the

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

Unit of surface tension in S.I. unit is

High relative humidity decreases the evaporative process and as the temperature is increased, the relative humidity decreases. The comfort range for human body is the ambient temperature of 22 to 27°C with relative humidity ranging from __________ percent.

The product out from a cupola is called

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

The underground well of a biogas plant is called the

Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres

Production of a hollow product by inflation of a tube or parison is called the __________ process.

With increase in temperature, the surface tension of water

Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

Which of the following is not an explosive?

Main constituent of bone ash is

Wrought iron is never shaped by

Carbon supply in pack carburising process is in the form of

Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent in steel.

A material being tested for endurance strength is subjected to the __________ load.

Pick out the wrong statement about coating/electroplating of metals.

Stainless steel is welded using

Pick out the wrong statement about nucleate boiling.

Viscoelastic behaviour is observed in __________ materials.

Limestone is added in the blast furnace (during pig iron manufacture) to

__________ flux is used for the extraction of metal from its self fluxing ores.

Also checkout

Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Milk is fat dispersed in water. It is an example of

Heating of ferromagnetic materials to a temperature above Curie temperature makes it

Alloy powder manufactured by the following process have spherical shapes.

In inventory control theory, the economic order quantity (EOQ) is the

At the point of boundary layer separation in fluid flow, the

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.

Unit of surface tension in S.I. unit is

High relative humidity decreases the evaporative process and as the temperature is increased, the relative humidity decreases. The comfort range for human body is the ambient temperature of 22 to 27°C with relative humidity ranging from __________ percent.

The product out from a cupola is called

Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

The underground well of a biogas plant is called the

Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting)

The approximate height of a blast furnace having a useful volume of 2000 m3 is about __________ metres

Production of a hollow product by inflation of a tube or parison is called the __________ process.

With increase in temperature, the surface tension of water

Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of

Which of the following is not an explosive?

Main constituent of bone ash is

Wrought iron is never shaped by

Carbon supply in pack carburising process is in the form of

Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent in steel.

A material being tested for endurance strength is subjected to the __________ load.

Pick out the wrong statement about coating/electroplating of metals.

Stainless steel is welded using

Pick out the wrong statement about nucleate boiling.

Viscoelastic behaviour is observed in __________ materials.

Limestone is added in the blast furnace (during pig iron manufacture) to

__________ flux is used for the extraction of metal from its self fluxing ores.

Also checkout

The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres