engineering ergonomics

A male factory worker performs a repetitive task with a 12 minutes work cycle. During each cycle his energy expenditure rate is 7.8 kcal/min for 20% of time and 5.6 kcal /min for the remaining 80%.

a. (5%) What is his average oxygen uptake for a work cycle in terms of liters/min?

b. (10%) How much of a rest break should be allowed at the end of each cycle if he must work 4hr in the morning and 4 hr in the afternoon?

c. (10%) In eachwork cycle if he produces one unit, what will be his daily production?

You may use the following formulas as appropriate;

Rest allowance = w(b-s) / (b-0.3)

Rest allowance = w(e-a) / (e-1.5)

1. (25%) A male factory worker performs a repetitive task with a 12 minutes work cycle. During each cycle his energy expenditure rate is 7.8kcal/min for 20% of time and 5.6 kcal/min for the remaining 80%. a. (5%) What is his average oxygen uptake for a work cycle in terms of liters/min? b. (10%) How much of a rest break should be allowed at the end of each cycle if he must work 4hr in the morning and 4hr in the afternoon? c. (10%) In eachwork cycle if he produces one unit, what will be his daily production? You may use the following formulas as appropriate; Rest allowance =w(bs)/(b0.3) Rest allowance =w(ea)/(e1.5)