Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

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Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

A. Length of the pipe

B. Diameter of the pipe

C. Density of the fluid

D. Velocity of the fluid

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Coating provided on the electrodes used in the arc welding is not expected to

A. Add alloying elements

B. Prevent electrode from contamination

C. Stabilise the arc

D. Provide protective atmosphere to weld

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The best lubricants for a machine working at high temperature & load is

A. Grease

B. Solid lubricant

C. Animal oils

D. Mineral oils

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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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Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is

A.

B.

C.

D.

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In __________ process, there is an increase in entropy with no degradation of energy.

A. Isothermal expansion

B. Isochoric heat addition

C. Polytropic expansion

D. Isobaric heat addition

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The activity of pure hydrogen gas at 1000°C and 5 atm pressure

A. Is always less than 1

B. Is always greater than 1

C. Can be 5

D. Depends on the choice of the standard state

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Blast furnace slag is mainly molten

A. Sand

B. Magnesium silicate

C. Calcium silicate

D. Iron pyrite

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The noble metals

A. Are exemplified by Na, K and Li

B. Do not resist corrosion very strongly

C. Are the lowermost in the electro-chemical series of metals

D. None of these

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Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

A. Malleable iron

B. Grey cast iron

C. Chilled cast iron

D. White cast iron

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A common disinfectant used in village wells for disinfection of water is

A. Free chlorine

B. Bromine

C. Iodine

D. Potassium permanganate

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To counteract the bad effects of strain hardening on a cold formed part, it must be

A. Tempered

B. Normalised

C. Annealed

D. Hardened

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Encyclopaedia of Chemical Technology has been

A. Authored by Kirk Othmer

B. Edited by Perry and Chilton

C. Edited by Kirk Othmer

D. Authored by Perry and Chilton

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Which of the following is not a dielectric material?

A. Cotton, silk and paper

B. Asbestos, glass, porcelain and mica

C. Rubber and polymeric resins

D. All refractory materials

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The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

A. Carbon

B. Manganese

C. Both 'a' nor 'b'

D. Neither 'a' nor 'b'

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Boiler draught of 10 mm water column is equivalent to

A. 1 kgf/m²

B. 10 kgf/m²

C. 10 kgf/mm²

D. 1 kgf/mm²

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Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

A. 300

B. 800

C. 1400

D. 2000

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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

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__________ has the highest melting point out of the following.

A. Tungsten

B. Zirconium

C. Molybdenum

D. Tantalum

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Brazing is the joining of metals

A. Without melting the base metal

B. With a non-ferrous filler

C. Both (A) & (B)

D. Neither (A) nor (B)

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Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method.

A. Diminishing balance

B. Sinking fund

C. Multiple straight line

D. Sum of the years digit

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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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Lead is poured into the joint between two- __________ pipes.

A. Mild steel

B. Concrete

C. Cast iron

D. Asbestos cement

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Capacity & power requirement for an air compressor working at high altitude compared to sealevel will be

A. More

B. Less

C. Same

D. Either more or less; depends on the climatic conditions

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The substance used as a smoke screen in warfare is

A. C2H2

B. SiCl4

C. P2O5

D. PCl5

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An alloy of Fe - 0.4 % C is

A. Cast iron

B. Hypo-eutectoid steel

C. Hyper-eutectoid steel

D. Eutectoid steel

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With increase in compression ratio, the volumetric efficiency of air compressor

A. Increases

B. Decreases

C. Remain same

D. May increase or decrease (depends on the suction pressure)

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Oxide layer formed on the non-ferrous metal surface after its annealing is

A. Removed by acid pickling

B. Hammered into the surface

C. Removed with coarse emery cloth

D. Left as such to protect the surface

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In a good rimming steel

A. Carbon and silicon should be low

B. Silicon should be low but carbon should be high

C. Both silicon & carbon should be high

D. Silicon should be high but carbon should be low

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With increase in impurities in metals, their corrosion resistances

A. Increase

B. Decrease

C. Remain same

D. May increase or decrease; depending on the type of metal

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Titanium is added to molten aluminium alloys before casting for the purpose of

A. Grain refinement

B. Increasing corrosion resistance

C. Reducing porosity

D. Improving fluidity

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Accepted Answer

A. Length of the pipe

Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Coating provided on the electrodes used in the arc welding is not expected to

The best lubricants for a machine working at high temperature & load is

Cast iron contains __________ percent carbon.

Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is

In __________ process, there is an increase in entropy with no degradation of energy.

The activity of pure hydrogen gas at 1000°C and 5 atm pressure

Blast furnace slag is mainly molten

The noble metals

Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

A common disinfectant used in village wells for disinfection of water is

To counteract the bad effects of strain hardening on a cold formed part, it must be

Encyclopaedia of Chemical Technology has been

Which of the following is not a dielectric material?

The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

Boiler draught of 10 mm water column is equivalent to

Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

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

__________ has the highest melting point out of the following.

Brazing is the joining of metals

Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method.

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.

Lead is poured into the joint between two- __________ pipes.

Capacity & power requirement for an air compressor working at high altitude compared to sealevel will be

The substance used as a smoke screen in warfare is

An alloy of Fe - 0.4 % C is

With increase in compression ratio, the volumetric efficiency of air compressor

Oxide layer formed on the non-ferrous metal surface after its annealing is

In a good rimming steel

With increase in impurities in metals, their corrosion resistances

Titanium is added to molten aluminium alloys before casting for the purpose of

Also checkout

Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Coating provided on the electrodes used in the arc welding is not expected to

The best lubricants for a machine working at high temperature & load is

Cast iron contains __________ percent carbon.

Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is

In __________ process, there is an increase in entropy with no degradation of energy.

The activity of pure hydrogen gas at 1000°C and 5 atm pressure

Blast furnace slag is mainly molten

The noble metals

Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

A common disinfectant used in village wells for disinfection of water is

To counteract the bad effects of strain hardening on a cold formed part, it must be

Encyclopaedia of Chemical Technology has been

Which of the following is not a dielectric material?

The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the __________ content in steel.

Boiler draught of 10 mm water column is equivalent to

Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

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

__________ has the highest melting point out of the following.

Brazing is the joining of metals

Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________ method.

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.

Lead is poured into the joint between two- __________ pipes.

Capacity & power requirement for an air compressor working at high altitude compared to sealevel will be

The substance used as a smoke screen in warfare is

An alloy of Fe - 0.4 % C is

With increase in compression ratio, the volumetric efficiency of air compressor

Oxide layer formed on the non-ferrous metal surface after its annealing is

In a good rimming steel

With increase in impurities in metals, their corrosion resistances

Titanium is added to molten aluminium alloys before casting for the purpose of

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.