236 A subcontractor has two methods of hanging steel siding

2.36 A subcontractor has two methods of hanging steel siding panels. Each panel is 2 feet wide and the height varies from 14 to 18 feet. The method is the placement of two panels, one a and then a face panel. A foreman collects job-ticket information from six diterent jobs, summary is given as: and Job 1 Job 2 Job 3 Job 4 Job5lk No. of crew members Method of placement 4 4 1. Both panels together 2. One panel at a time Type of scaffolding 1. On wheels 2. Hung No. of panels placed per crew hour 18 25 20 19 22 Which method gives the highest productivity? 37 A nonrenetitiue gang time strud is taken of subgont

Solution

Productivity will be calculated as :

Productivity = Number of panrls placed per crew hour x Number of crew members

Productivity for job 1 = 18 x 3 = 54

Productivity for job 2 = 25 x 4 = 100

Productivity for job 3 = 22 x 3 = 66

Productivity for job 4 = 20 x 4 = 80

Productivity for job 5 = 19 x 3 = 57

Productivity for job 6 = 22 x 4 = 88