Lead is poured into the joint between two __________ pipes.

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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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Sub zero treatment of steel is done to

A. Suppress martensite transformation

B. Enhance its working performance in sub zero atmosphere

C. Reduce the retained austenite in hardened steel

D. Induce temper brittleness after its hardening

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The co-ordination number in simple cubic structure is

A. 4

B. 6

C. 8

D. 12

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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

Discuss this answer

Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

A. Manganese

B. Silicon

C. Nickel

D. Chromium

Discuss this answer

Which one is neutral in character?

A. N₂O₄

B. N₂O

C. N₂O₅

D. N₂O₃

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The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters in a thermal power plant boiler is the

A. Water alkalinity & leakage

B. Hydrazine addition during feed water treatment

C. Release of non-condensable gas from water in the boiler

D. Scale formation

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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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Hot working of lead is carried out at

A. 75°C

B. 373°K

C. 150°C

D. Room temperature

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Laser welding is widely employed in the __________ industries.

A. Electronic

B. Structural

C. Process

D. Heavy

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Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

A. Lower cost

B. Abundant availability

C. Resistance to vegetable acids as the tin plate are commercially used in 'canning' industry

D. None of these

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The phenomenon occurring during explosion of a hydrogen bomb is

A. Nuclear fission

B. Nuclear fusion

C. A combination of both nuclear fission & fusion

D. None of these

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The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

A. Wetness

B. Mass flow rate

C. Both 'a' & 'b'

D. Neither 'a' nor 'b'

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Case hardening is not done by

A. Nitriding

B. Hot dipping

C. Electroplating

D. Both b & c

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Adhesives

A. Cant be used in the form of pressure sensitive tapes

B. Cant join two dissimilar metals

C. Cure instantaneously after application on a surface

D. None of these

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Pick out the wrong statement.

A. A soft magnetic material should have high permeability and small area of hysteresis loop

B. Poisson's ratio of high melting point metals is more than unity

C. Solders generally melt at less than 185°C

D. Steel produced by B.O.F process is ideally suited for manufacturing flat product

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The ability of tool steel to resist softening at high temperatures is termed as __________ hardness.

A. Red

B. Extended

C. Super

D. Extreme

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Fahrenheit and Centigrade scales have the same readings at

A. -55°

B. -40°

C. -33°

D. -58°

Discuss this answer

In chemical dehumidification of air

A. Both specific humidity & dry bulb temperature increases

B. Both specific humidity & dry bulb temperature decreases

C. Specific humidity decreases & dry bulb temperature increases

D. Specific humidity increases & dry bulb temperature decreases

Discuss this answer

Recrystallisation temperature of steel is __________ °C.

A. 50

B. 300

C. 500

D. 800

Discuss this answer

Window panes of aeroplanes are normally made of

A. Perspex (PMMA)

B. Teflon (PTFE)

C. Bakelite (phenol formaldehyde)

D. Polystyrene

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Heat flow across a hollow sphere of inner radius 'r₁' and outer radius 'r₂' is directly proportional to

A. (r₂ - r₁)/r₁. r₂

B. r₁. r₂/(r₂- r₁)

C. (r₂ + r₁)/r₁. r₂

D. r₁. r₂/(r₂ + r₁)

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Yield strength of a material is determined by the __________ test.

A. Creep

B. Tension

C. Compression

D. Endurance

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Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

A. +4000

B. -4000

C. 10000

D. -10000

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Powder metallurgy process does not make metal powder by

A. Atomisation

B. Grinding/milling

C. Hammering

D. Electrolytic deposition

Discuss this answer

The most serious manufacturing defect from fracture toughness point of view is

A. Surface roughness

B. Pores

C. Spherical inclusion

D. Crack

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The refractory lining of the bottom in a basic electric arc furnace is made of

A. Silica

B. Alumina

C. Magnesia

D. Fireclay

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Which of the following materials has the least scrap value?

A. Aluminium

B. Stainless steel

C. Brass

D. Copper

Discuss this answer

Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

A. Steel

B. Glass wood

C. Copper

D. Fireclay bricks

Discuss this answer

A spring material should have low

A. Elastic limit

B. Deflection value

C. Fatigue resistance

D. None of these

Discuss this answer

Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)

A. 1/k

B. k

C. k²

D. 1/k²

Discuss this answer

Accepted Answer

C. Cast iron

Lead is poured into the joint between two __________ pipes.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Sub zero treatment of steel is done to

The co-ordination number in simple cubic structure is

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.

Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

Which one is neutral in character?

The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters in a thermal power plant boiler is the

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

Hot working of lead is carried out at

Laser welding is widely employed in the __________ industries.

Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

The phenomenon occurring during explosion of a hydrogen bomb is

The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

Case hardening is not done by

Adhesives

Pick out the wrong statement.

The ability of tool steel to resist softening at high temperatures is termed as __________ hardness.

Fahrenheit and Centigrade scales have the same readings at

In chemical dehumidification of air

Recrystallisation temperature of steel is __________ °C.

Window panes of aeroplanes are normally made of

Heat flow across a hollow sphere of inner radius 'r₁' and outer radius 'r₂' is directly proportional to

Yield strength of a material is determined by the __________ test.

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

Powder metallurgy process does not make metal powder by

The most serious manufacturing defect from fracture toughness point of view is

The refractory lining of the bottom in a basic electric arc furnace is made of

Which of the following materials has the least scrap value?

Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

A spring material should have low

Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)

Also checkout

Lead is poured into the joint between two __________ pipes.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Sub zero treatment of steel is done to

The co-ordination number in simple cubic structure is

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.

Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

Which one is neutral in character?

The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters in a thermal power plant boiler is the

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

Hot working of lead is carried out at

Laser welding is widely employed in the __________ industries.

Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its

The phenomenon occurring during explosion of a hydrogen bomb is

The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.

Case hardening is not done by

Adhesives

Pick out the wrong statement.

The ability of tool steel to resist softening at high temperatures is termed as __________ hardness.

Fahrenheit and Centigrade scales have the same readings at

In chemical dehumidification of air

Recrystallisation temperature of steel is __________ °C.

Window panes of aeroplanes are normally made of

Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional to

Yield strength of a material is determined by the __________ test.

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

Powder metallurgy process does not make metal powder by

The most serious manufacturing defect from fracture toughness point of view is

The refractory lining of the bottom in a basic electric arc furnace is made of

Which of the following materials has the least scrap value?

Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

A spring material should have low

Thermal diffusivity of a substance is proportional to (where, k = Thermal conductivity)

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.

Heat flow across a hollow sphere of inner radius 'r₁' and outer radius 'r₂' is directly proportional to