Self Study 3 Questions 1. When during a time study should a rating be given? Why is this important? 2. Explain the Westinghouse system of rating. 3. What is synthetic rating? Explain its advantages and disadvantages 4. What main areas are allowances intended to cover? 5. Give several examples of personal delays. Which percentage allowance seems adequate for personal delays under typical shop conditions? 6. Based on the ILO tabulation (in your book and slides), what would be the allowance factor on a work element involving a 42-pound pulling force in inadequate light where exacting work was required? 7. What are the advantages of using predetermined times? 8. For which reasons was MTM-2 developed? Where does MTM-2 have special application? 9. How is MOST related to MTM? 10. What are some of the advantages in using a predetermined time system as opposed to stopwatch time study? 11. Determine the time for M20B20 in MTM1 (Use the relevant tables in your book or slides). 12. Calculate the equivalent in TMUs of 0.0075 hours per piece, of 0.248 minutes per piece, of 0.0622 hours per hundred, of 0.421 seconds per piece, of 10 pieces per minute. 13. What are advantages of work sampling over stopwatch time study? 14. The Dorben Company is using the work sampling technique to establish standards in its typing pool section. This pool has varied responsibilities, including typing from tape recordings, filing, Kardex posting, and copying. The pool has six typists who work a 40-hour week. Seventeen hundred random observations were made over a four-week period. During the period, the typists produced 9.001 pages of routine typing. Of the random observations, 1,225 showed that typing was taking place. Assuming a 20 percent allowance and an adjusted performance rating factor of 0.85, calculate the hourly standard per page of typing. 15. How many observations should be recorded in determining the allowance for personal delays in a forge shop if it is expected that a 5 percent personal allowance will suffice, and if this value is to remain between 4 and 6 percent 95 percent of the time? 16. The following data was collected by an intern working at the Mole Hill Ski Resort regarding the efficiency of the V-8 Ford engine that was used to power their rope tow for the bunny slope. Management would like to know how many hours of service they can expect to achieve out of their obviously failing engine out of a typical 16 hour skiing day. After studying the data, you can state with 95% confidence that the engine will be able to run for ________ hours _________ hours of a 16 hour day. (Each | in the following indicates one observation). Running on 8 cylinders ||||| Running on 7 cylinders ||||| ||||| || Running on 6 cylinders ||||| ||||| ||||| || Not running, engine clogged ||||| ||||| ||||| ||||| ||||| ||