Which of the following is resistant to the action of both heat & chemicals?

Question

Which of the following is resistant to the action of both heat & chemicals?

A. Borosilicate glass

B. Silica glass

C. Soda lime glass

D. None of these

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Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?

A. Aluminium

B. Copper

C. Titanium

D. Stainless steel

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In case of a, centrifugal pump, the ratio h₁/h₂ is termed as the __________ efficiency (where, h₁ = actual measured head & h₂ = head imparted to the fluid by impeller).

A. Mechanical

B. Overall

C. Volumetric

D. Impeller

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Dryness fraction of dry steam is

A. 0

B. ∞

C. 1

D. 0.5

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A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.

A. Independent of

B. Inversely proportional to

C. Directly proportional to

D. None of these

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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

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Multistage compression of air as compared to single stage compression offers the advantage of

A. Power saving per unit weight of air delivered

B. Moisture elimination in the inter-stage cooler

C. Increased volumetric efficiency

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

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Fibrous fracture is normally encountered in the __________ materials.

A. Hard

B. Elastic

C. Ductile

D. Brittle

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Exposure to __________ accelerates the degradation of plastics.

A. Ultraviolet radiation

B. High atmospheric temperature

C. High ambient temperature

D. Damp atmosphere

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Which of the following fastening devices has its both ends threaded?

A. Bolt

B. Stud

C. Set screw

D. Split nut

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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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Stainless steel is welded with difficulty because of

A. Its high melting temperature

B. Chances of cracking

C. Oxide film formation

D. Chromium carbide formation

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Highest cutting speed is achieved by the __________ tool material.

A. High speed steel

B. Carbide

C. Cast alloy

D. Plain carbon steel

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The normal stress is the same in all directions at a point in a fluid, only when the fluid

A. Is at rest & has zero viscosity

B. Is frictionless

C. Fluid layer has no motion relative to an adjacent layer of fluid

D. is incompressible & frictionless

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Which of the following materials has the poorest electrical conductivity?

A. Carbon

B. Aluminium

C. Silver

D. Stainless steel

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__________ is the hardest material out of the following.

A. Boron carbide

B. Tungsten carbide

C. Hardened steel

D. Silicon carbide

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Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.

A. Film

B. Nucleate

C. Transition

D. All modes of

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Which of the following is not an ore of copper?

A. Cryolite

B. Azurite

C. Chalcopyrite

D. Malachite

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The most suitable material of construction for a sewer to carry sewage under high pressure is

A. Asbestos cement

B. Steel

C. Cement concrete

D. Stoneware

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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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Plants produce carbohydrates from the CO2 present in the atmosphere by

A. Polymerisation

B. Photochemical reaction

C. Oxidation

D. None of these

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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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Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.
A. Induced draft fan
B. Economiser
C. Air preheater
D. Steam superheater Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories?

A. A, C, B, D

B. D, B, C, A

C. D, C, B, A

D. D, A, B, C

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Which of the following metals is not subjected to electrolytic refining/purification?

A. Copper

B. Zinc

C. Tin

D. Aluminium

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Which of the following materials has the maximum shrinkage allowance?

A. Brass

B. Cast iron

C. Lead

D. Aluminium alloy

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Eutectoid composition of carbon steel at room temperature is

A. Cementite

B. Pearlite

C. Martensite

D. Ferrite

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The elastic strain in copper is due to the

A. Motion of dislocations

B. Stretching of atomic bonds

C. Breakage of atomic bonds

D. None of the above

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What is the value of included angle of a triangular notch for maximum discharge?

A. 30°

B. 60°

C. 90°

D. 120°

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Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

A. Cresylic acid

B. Xanthaies

C. Pine oil

D. All 'a' 'b' & 'c'

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Air standard Otto cycle is more efficient than the diesel cycle for the same

A. Heat addition & compression ratio

B. Heat addition & pressure

C. Compression ratio & pressure

D. Cylinder dimension & rpm

Discuss this answer

Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)

A. H

B. H/2

C. H/4

D. H/6

Discuss this answer

Accepted Answer

A. Borosilicate glass

Which of the following is resistant to the action of both heat & chemicals?

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?

In case of a, centrifugal pump, the ratio h₁/h₂ is termed as the __________ efficiency (where, h₁ = actual measured head & h₂ = head imparted to the fluid by impeller).

Dryness fraction of dry steam is

A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.

In chemical dehumidification of air

Multistage compression of air as compared to single stage compression offers the advantage of

Fibrous fracture is normally encountered in the __________ materials.

Exposure to __________ accelerates the degradation of plastics.

Which of the following fastening devices has its both ends threaded?

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

Stainless steel is welded with difficulty because of

Highest cutting speed is achieved by the __________ tool material.

The normal stress is the same in all directions at a point in a fluid, only when the fluid

Which of the following materials has the poorest electrical conductivity?

__________ is the hardest material out of the following.

Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.

Which of the following is not an ore of copper?

The most suitable material of construction for a sewer to carry sewage under high pressure is

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

Plants produce carbohydrates from the CO2 present in the atmosphere by

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

Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.
A. Induced draft fan
B. Economiser
C. Air preheater
D. Steam superheater Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories?

Which of the following metals is not subjected to electrolytic refining/purification?

Which of the following materials has the maximum shrinkage allowance?

Eutectoid composition of carbon steel at room temperature is

The elastic strain in copper is due to the

What is the value of included angle of a triangular notch for maximum discharge?

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

Air standard Otto cycle is more efficient than the diesel cycle for the same

Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)

Also checkout

Which of the following is resistant to the action of both heat & chemicals?

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)?

In case of a, centrifugal pump, the ratio h1/h2 is termed as the __________ efficiency (where, h1 = actual measured head & h2 = head imparted to the fluid by impeller).

Dryness fraction of dry steam is

A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.

In chemical dehumidification of air

Multistage compression of air as compared to single stage compression offers the advantage of

Fibrous fracture is normally encountered in the __________ materials.

Exposure to __________ accelerates the degradation of plastics.

Which of the following fastening devices has its both ends threaded?

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

Stainless steel is welded with difficulty because of

Highest cutting speed is achieved by the __________ tool material.

The normal stress is the same in all directions at a point in a fluid, only when the fluid

Which of the following materials has the poorest electrical conductivity?

__________ is the hardest material out of the following.

Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.

Which of the following is not an ore of copper?

The most suitable material of construction for a sewer to carry sewage under high pressure is

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

Plants produce carbohydrates from the CO2 present in the atmosphere by

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

Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.A. Induced draft fanB. EconomiserC. Air preheaterD. Steam superheater Which of the following gives the correct sequence of flow of the flue gases through the above mentioned boiler accessories?

Which of the following metals is not subjected to electrolytic refining/purification?

Which of the following materials has the maximum shrinkage allowance?

Eutectoid composition of carbon steel at room temperature is

The elastic strain in copper is due to the

What is the value of included angle of a triangular notch for maximum discharge?

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?

Air standard Otto cycle is more efficient than the diesel cycle for the same

Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)

Also checkout

In case of a, centrifugal pump, the ratio h₁/h₂ is termed as the __________ efficiency (where, h₁ = actual measured head & h₂ = head imparted to the fluid by impeller).