Review Questions 1. What is work measurement? 2. What are the characteristics of a work measurement? 3. What do you understand by basic principles of work sampling? 4. Explain the standard performance and performance rating. 5. What do you understand by direct time study? 6. Describe the sampling process and rating system. 7. What is the difference between stop watch time study and synthesis? 8. Explain the guidelines for successful work sampling. 9. What are the features of work measurement techniques? 10. Differentiate between time study and work sampling.