Question

What is a Therblig? Please specify and give exampie. 3) A time study was conducted on a job that contains four elements. The observed times and performance ratings for six cycles are shown in the following table. Note that all units are in minutes 15 Element Performance 1 13 4 6 rating 85% 100% 110% 95% 0.5 258* 0.89 1.14 0.46 1.52 0.8 0.44 1.5 0.84 1.1 0.43 1.47 0.48 1.49 0.85 0.45 1.51 0.83 1.081.21.161.26 4 * Machine broke down a) Determine the average cycle time for each element. b) Compute the normal time for each element c) Assuming an allowance factor of 15% ofjob time, compute the standard time for this task. d) Assuming an allowance of 15% of the work time, compute the standard time for this task e) How many parts are expected to be produced in an 8-hour shift? IWhot in the differen hetween job description and job specification? ring area?

Answer 1

Element Performme 1 3 C. Re 0.44 0.5-0.43 0. 450-480-4 110 % o 84 08 77 0.83 o 8s 0.8 95% 09 12 116 .26 1.14 avg = 0.46 6 av 44. 249f broke

O Normal-time of. each elem mt-→ NT 44 248 xI44-248 Allowance father -15% of Job Hnu. O STNT llwance Fache standard Hme CST aoorie-Hme@) of, Allowance .-s 15% Momma/ナime. 0.8406 O ST- O. 3914-1.15-メ0.391 :

ST 0182 - 1-X 1-0982-2.36/3 porte prodiu el İn8hr ghift ST 480 0.8406 N Bx60 min NE 480 H480 o4 Parts .36l13