Chemical Engineering Basics - Practice Test

[#1221] Pick out the wrong statement about powder metallurgy technique.

(A) Powder metallurgy techniques are applied at room temperature

(B) Final product in powder metallurgy is not necessarily metallic powder

(C) The final product in powder metallurgy is made from metallic powder

(D) Silver and nickel when melted together do not mix to form an alloy however alloy of these constituents can be made by powder metallurgy technique

Correct Answer

(A) Powder metallurgy techniques are applied at room temperature

[#1222] Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g
tough bronze). Grinding is a __________ operation.

(A) Turning

(B) Dressing

(C) Forming

(D) Surface finishing

Correct Answer

(D) Surface finishing

[#1223] FeO(s) + CO(g) = Fe(s) + CO 2 (g), k = 0.435 at 1173 E
At equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K?

(A) 1.0

(B) 1.3

(C) 2.3

(D) 3.3

Correct Answer

(D) 3.3

[#1224] With increase in pressure, the latent heat of steam

(A) Increases

(B) Decreases

(C) Remains unchanged

(D) Data insufficient can't be predicted

Correct Answer

(B) Decreases

[#1225] Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area
in the casting)

(A) $$frac{{ ext{V}}}{{ ext{A}}}$$

(B) $$frac{{ ext{V}}}{{{{ ext{A}}^2}}}$$

(C) $$frac{{{{ ext{V}}^2}}}{{ ext{A}}}$$

(D) $$frac{{{{ ext{V}}^2}}}{{{{ ext{A}}^2}}}$$

Correct Answer

(D) $$frac{{{{ ext{V}}^2}}}{{{{ ext{A}}^2}}}$$

Chemical Engineering Basics - Study Mode

[#1221] Pick out the wrong statement about powder metallurgy technique.

Correct Answer

[#1222] Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g tough bronze). Grinding is a __________ operation.

Correct Answer

[#1223] FeO(s) + CO(g) = Fe(s) + CO 2 (g), k = 0.435 at 1173 E At equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K?

Correct Answer

[#1224] With increase in pressure, the latent heat of steam

Correct Answer

[#1225] Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area in the casting)

Correct Answer

[#1222] Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g
tough bronze). Grinding is a __________ operation.

[#1223] FeO(s) + CO(g) = Fe(s) + CO 2 (g), k = 0.435 at 1173 E
At equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K?

[#1225] Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area
in the casting)