Question

The maximum pour-point requirements for refrigerator system are about ________ for lightest grade.

(a) -10^oF

(b) -20^oF

(c) -30^oF

(d) -40^oF

The question was asked in an interview for internship.

The doubt is from Lubricants General Questions topic in division Lubricants of Applied Chemistry

Answer 1

The correct choice is (d) -40^oF

Easiest explanation: The maximum pour point requirements for refrigerator system is about -40^oF for lightest grade. For the heaviest grade the maximum pour point is about -13^oF.