Question

What is the ratio of preventive maintenance and total maintenance in general manufacturing industry?

(a) 1 : 10 men

(b) 1 : 2.69 men

(c) 1 : 2.37 men

(d) 1 : 3.77 men

The question was asked during an internship interview.

Question is taken from Elements of Preventive Maintenance in division Preventive Maintenance in Foundries & Metal Casting Process of Casting-Forming-Welding I

Answer 1

Correct option is (a) 1 : 10 men

Easiest explanation: The ratio of preventive maintenance and total maintenance, in case of primary-metal industry, the ratio is 1 : 2.37 men, in case of machinery manufacturing industry, the ratio is 1 : 2.69 men and in case of general manufacturing industry, the ratio is 1 : 10 men.