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

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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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__________ of test specimens is not involved in any hardness testing method.

A. Fracture

B. Indentation

C. Wear

D. Scratch

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In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

A. Range is 15°F

B. Approach is 10°F

C. Both (A) & (B)

D. Neither (A) nor (B)

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The most important requirement for aluminium industry is the availability of cheap

A. Ore

B. Electrical power

C. Labour

D. Abundant water

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Function of fusible plug in a boiler is to

A. Drain out water and sludge from the boiler during repair

B. Put off fire in the furnace when water level in the boiler falls to unsafe limit

C. Guard the boiler in case of abnormal rise in steam pressure

D. All (A), (B) & (C)

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Cold chisels hammers are made of

A. High speed steel

B. High carbon steel

C. Forged steel

D. Mild steel

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Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars.

A. Hot rolled mild

B. Cold rolled mild

C. Forged

D. Machinable stainless

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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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Annealing of cast iron

A. Softens it to facilitate machining

B. Decreases the free carbon

C. Increases the strength

D. None of these

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As the fluid flow rate increases, the float of the Rotameter

A. Rises in the tube

B. Rotates at higher speed

C. Rotates at lower speed

D. Drops down in the tube

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Work study deals with the __________ study.

A. Time

B. Motion

C. Both (A) & (B)

D. Neither (A) nor (B)

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When an isolated thermodynamic system executes a process,

A. Work is done

B. Heat transfer takes place

C. Mass flow occurs across the boundary of the system

D. No chemical reaction takes place within the system

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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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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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Oxyacetylene reducing flame is used while carrying out welding on

A. Alloy steel

B. Grey cast iron

C. Mild steel

D. High carbon steel

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Chlorine acts as a bleaching agent only in the presence of

A. Dry air

B. Pure oxygen

C. Moisture

D. Sunlight

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Atomic __________ is a whole number for an element.

A. Number

B. Weight

C. Radius

D. None of these

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Thermit welding uses the following energy source.

A. Electrical energy

B. Chemical energy

C. Energy of high velocity electrons

D. Heat generated by friction

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Babbitt lining is used on brass/bronze bearings to increase the

A. Antifriction properties

B. Compressive strength

C. Bearing resistance

D. Wear resistance

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Which of the following material handling equipments is not suitable for moving materials in varying paths?

A. Hand trolley

B. Belt conveyor

C. Crane

D. Truck

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Liquor poisoning generally occurs due to the presence of __________ in it.

A. Ethyl alcohol

B. Impurities

C. Methyl alcohol

D. Carbonic acid

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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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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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Steels with high carbon equivalent have poor Weldability, because in these steels during welding

A. Carbon and other alloying elements get oxidised from the weld pool

B. Excessive ferrite forms in the heat affected zone leading to poor toughness of the weld

C. Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld

D. Segregation of carbon and other element occurs in the weld pool leading to poor properties of the weld

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Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

A. Steel

B. Lignite

C. Water

D. Lime stone

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What is the percentage of chromium in 18-4-1 high speed steel?

A. 1

B. 4

C. 18

D. 23

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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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With decrease in the grain size of a material, its creep resistance

A. Increases

B. Decreases

C. Remain constant

D. Either (A) or (B); depends on the material

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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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Which of the following metals cannot be hot worked at room temperature?

A. Zinc

B. Nickel

C. Lead

D. Tin

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Which of the following is not a principal alloying element for the structural steel?

A. Molybdenum

B. Nickel

C. Manganese

D. Chromium

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Accepted Answer

A. Stellite

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

__________ of test specimens is not involved in any hardness testing method.

In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

The most important requirement for aluminium industry is the availability of cheap

Function of fusible plug in a boiler is to

Cold chisels hammers are made of

Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars.

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

Annealing of cast iron

As the fluid flow rate increases, the float of the Rotameter

Work study deals with the __________ study.

When an isolated thermodynamic system executes a process,

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

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

Oxyacetylene reducing flame is used while carrying out welding on

Chlorine acts as a bleaching agent only in the presence of

Atomic __________ is a whole number for an element.

Thermit welding uses the following energy source.

Babbitt lining is used on brass/bronze bearings to increase the

Which of the following material handling equipments is not suitable for moving materials in varying paths?

Liquor poisoning generally occurs due to the presence of __________ in it.

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

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.

Steels with high carbon equivalent have poor Weldability, because in these steels during welding

Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

What is the percentage of chromium in 18-4-1 high speed steel?

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.

With decrease in the grain size of a material, its creep resistance

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

Which of the following metals cannot be hot worked at room temperature?

Which of the following is not a principal alloying element for the structural steel?

Also checkout

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

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

__________ of test specimens is not involved in any hardness testing method.

In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

The most important requirement for aluminium industry is the availability of cheap

Function of fusible plug in a boiler is to

Cold chisels hammers are made of

Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________ steel bars.

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

Annealing of cast iron

As the fluid flow rate increases, the float of the Rotameter

Work study deals with the __________ study.

When an isolated thermodynamic system executes a process,

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

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

Oxyacetylene reducing flame is used while carrying out welding on

Chlorine acts as a bleaching agent only in the presence of

Atomic __________ is a whole number for an element.

Thermit welding uses the following energy source.

Babbitt lining is used on brass/bronze bearings to increase the

Which of the following material handling equipments is not suitable for moving materials in varying paths?

Liquor poisoning generally occurs due to the presence of __________ in it.

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

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.

Steels with high carbon equivalent have poor Weldability, because in these steels during welding

Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

What is the percentage of chromium in 18-4-1 high speed steel?

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.

With decrease in the grain size of a material, its creep resistance

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

Which of the following metals cannot be hot worked at room temperature?

Which of the following is not a principal alloying element for the structural steel?

Also checkout

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

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.