Chemical Engineering Basics - Practice Test

[#421] In BOF, desiliconisation is a first order reaction. So the silicon content of the metal decreases

(A) Linearly with time

(B) Exponentially with time

(C) Logarithmically with time

(D) In proportion to the square root of time

Correct Answer

(A) Linearly with time

[#422] Corrosion is

(A) A physical phenomenon

(B) A chemical phenomenon

(C) Same as erosion

(D) An uncontrollable phenomenon

Correct Answer

(B) A chemical phenomenon

[#423] Aromatics are desired constituents of

(A) Lubricating oil

(B) Diesel

(C) Kerosene

(D) Petrol

Correct Answer

(C) Kerosene

[#424] The product out from a cupola is called

(A) Wrought iron

(B) Pig iron

(C) Cast iron

(D) None of these

(E) Wrought iron

(F) Pig iron

(G) Cast iron

(H) None of these

Correct Answer

(C) Cast iron
(G) Cast iron

[#425] Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

(A) E = 2G (1 + v)

(B) E = G (1 + v)

(C) $${ ext{E}} = frac{{{ ext{G}}left( {1 + { ext{v}}} ight)}}{2}$$

(D) E = 2G (1 + 2v)

Correct Answer

(A) E = 2G (1 + v)

Chemical Engineering Basics - Study Mode

[#421] In BOF, desiliconisation is a first order reaction. So the silicon content of the metal decreases

Correct Answer

[#422] Corrosion is

Correct Answer

[#423] Aromatics are desired constituents of

Correct Answer

[#424] The product out from a cupola is called

Correct Answer

[#425] Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?

Correct Answer