Nine (9) welders who perform the identical short-cycle job were observed by a time + motion engineer over four (4) cycles each. The total time recorded was two-hundred-ten (210) minutes. The performance rating for a particular welder was established at ninety-two percent (92%). Additionally, each welder is granted a twelve percent (12%) allowance for personal needs, fatigue, and routine delays.
1. What is observed time (OT) for this job
2. What is normal time (NT) for the selected welder
3. What is the standard time (ST) for the selected welder