Chemical Engineering Basics - Study Mode

Show All Answers

[#996] The refrigerant freon-12 is chemically

(A) CCl 2 F 2

(B) CCl 3 F

(C) CClF 3

(D) CCl 4 F

Correct Answer

(A) CCl 2 F 2

[#997] Welded joint is superior to revetted joint in respect of ease of fabrication, weight and strength. Which of the following joints is the most suitable for pipes carrying fluids under high pressure and temperature?

(A) Flanged joint

(B) Expansion joint

(C) Bell and spigot joint

(D) None of these

Correct Answer

(B) Expansion joint

[#998] Commonly employed coolant for high pressure turbogenerator is

(A) Air

(B) Carbon dioxide

(C) Hydrogen

(D) Water

Correct Answer

(C) Hydrogen

[#999] The lightest non-inflammable gas is

(A) H 2

(B) He

(C) Ar

(D) O 2

Correct Answer

(B) He

[#1000] The boiling & freezing points on a newly defined temperature scale in degree 'D' are 400°D & 100°D respectively. The temperature reading corresponding to 60°C on this new temperature scale will be equal to __________ °D.

(A) 140

(B) 180

(C) 240

(D) 280

Correct Answer

(D) 280