Chemical Engineering Basics - Study Mode

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[#891] Which one can be directly solidified from gaseous state wihtout entering into liquid state?

(A) Helium

(B) Oxygen

(C) Carbon dioxide

(D) None of these

Correct Answer

(C) Carbon dioxide

[#892] Failure of a material is attributed to __________ if it fails below its yield point.

(A) Impact loading

(B) Fatigue

(C) Creep

(D) Straining

Correct Answer

(B) Fatigue

[#893] Increasing sulphur content in pig iron tends to make it

(A) Soft

(B) Hard

(C) Tough

(D) Ductile & malleable

Correct Answer

(B) Hard

[#894] Springback in sheet metal bending depends on the

(A) Elastic limit

(B) Bend radius

(C) Degree of bend

(D) Thickness of sheet

Correct Answer

(D) Thickness of sheet

[#895] Number of electrons in the outermost orbit of a semi-conductor is

(A) 2

(B) 4

(C) 6

(D) 8

Correct Answer

(B) 4