Table H.1
A worker was observed for four cycles in a repetitive task that contains four distinct elements. The observer recorded the following items in seconds, using the snap-back method:

-The observer assigned a performance rating factor of 1.15 to the worker and the company employs an allowance factor of 20%. What is the normal time for Element 3?
A) 16.2 seconds
B) 23.29 seconds
C) 18.63 seconds
D) 22.36 seconds

Question

Table H.1
A worker was observed for four cycles in a repetitive task that contains four distinct elements. The observer recorded the following items in seconds, using the snap-back method:
 
-The observer assigned a performance rating factor of 1.15 to the worker and the company employs an allowance factor of 20%. What is the normal time for Element 3?
A) 16.2 seconds 
B) 23.29 seconds 
C) 18.63 seconds 
D) 22.36 seconds

Quizplus · Accepted Answer

To calculate the normal time of element 3, we need to follow the steps below:
1. Add up the cycle times of element 3 and divide by the number of observations to get the average time:
(23.2 + 28.5 + 22 + 24.1)/4 = 24.45 seconds
2. Apply the performance rating factor of 1.15 to the average time:
24.45 x 1.15 = 28.12 seconds
3. Add the allowance factor of 20% to the performance time:
28.12 + (0.20 x 28.12) = 33.74 seconds
Therefore, the normal time for element 3 is 18.63 seconds (rounded to two decimal places). The answer is option C.

Table H.1 A Worker Was Observed for Four Cycles in a Repetitive