chemical engineering MCQs – Page 350

Practise multiple-choice questions from chemical engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering Mcqs

6981. Alinco, which is a aluminium-cobalt-nickel steel, is used for making __________________?
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A. Chemical equipments

B. Powerful magnets

C. Surgical instruments

D. Boiler tubes

6982. Mild steel is a/an ______________ steel?
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A. High carbon

B. Medium carbon

C. High alloy

D. Low carbon

6983. Pressure drop for laminar fluid flow through a circular pipe is given by__________________?
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A. 32 (?LV/gc D2)

B. 4f (L/D) (v2/2gc) ?

C. (fL?/D) (v2/2gc)

D. 16/NRe

6984. Wrought iron is a suitable material of construction for handling _____________ solutions?
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A. Dilute acidic

B. None of these

C. Concentrated acidic

D. Alkalis & alkaline

6985. ____________ does not change during phase transformation processes like sublimation, melting & vaporisation?
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A. All (A), B. & (C)

B. Gibbs free energy

C. Entropy

D. Internal energy

6986. An equipotential line is _____________ to the velocity vector at every point?
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A. Tangential

B. None of these

C. Normal

D. Parallel

6987. Nickel base alloys with ______________ are known as monel metal?
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A. Copper

B. Tin

C. Zinc

D. Molybdenum

6988. 18/8 stainless steel means, that it contains__________________?
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A. 18% chromium and 8% molybdenum

B. 18% nickel and 8% chromium

C. 18% molybdenum and 8% chromium

D. 18% chromium and 8% nickel

6989. Each term in Bernoulli?s equation represents the _____________ of the fluid?
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A. Energy per unit weight

B. Energy per unit mass

C. None of these

D. Force per unit mass

6990. Sewage sludge is an example of the ______________ fluid?
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A. Pseudo plastic

B. Newtonian

C. Bingham plastic

D. Dilatent

6991. Evaporator used for concentrating tomato juice is made of __________________?
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A. Stainless steel-glass lined

B. Brass

C. Cast iron-rubber lined

D. Nickel

6992. Which of the following is an undesirable characteristic of a refrigerant ?
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A. None of these

B. It should be non-explosive

C. Its vapor pressure at the condenser temperature should be very high

D. It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils

6993. Brass container is suitable for storing__________________?
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A. H2SO4 (95%)

B. Phosphoric acid (95%)

C. Aqueous ammonia

D. Beer

6994. Which of the following units is not present in both the vapor compression refrigeration system and absorption refrigeration system ?
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A. Refrigerator

B. Condenser

C. Compressor

D. Expansion valve

6995. _____________ moulding process cannot be used for thermoplastic plastics?
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A. Injection

B. None of these

C. Compression

D. Extrusion

6996. A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an _____________ fluid?
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A. Newtonian

B. Incompressible

C. Non-Newtonian

D. Ideal

6997. Containers made of high silicon cast iron (14% Si) are not suitable for the storage of ____________________?
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A. Phosphoric acid (95%) & sulphuric acid (95%)

B. Hydrochloric acid (concentrated)

C. Acetic acid

D. Benzoic & boric acids

6998. The softest material just next to talc in the Mhos scale is___________________?
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A. Quartz

B. Fluorite

C. Feldspar

D. Gypsum

6999. Beehive coke ovens are made of ________________ bricks?
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A. Silica

B. Silicon carbide

C. Corundum

D. Fireclay

7000. How many atoms are there per unit cell in a body centred cubic lattice system ?
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A. 5

B. 2

C. 6

D. 3

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