0.05, 0.06, 0.05, 0.05, 0.05
0.06, 0.06, 0.05, 0.06, 0.06
What is the normal time for the element ?
Work Study Element Normal Time Calculation
The normal time for a work element is calculated by adjusting the average actual time observed by the performance rating given to the worker.
Formula for Normal Time
The formula used is:
$Normal Time = Average Actual Time × (Performance Rating / 100)$
Step 1: Calculate Average Actual Time
First, find the average of the given actual time readings (in minutes).
Readings: 0.05, 0.06, 0.05, 0.05, 0.05, 0.06, 0.06, 0.05, 0.06, 0.06
Number of readings = 10
Sum of readings = $0.05 + 0.06 + 0.05 + 0.05 + 0.05 + 0.06 + 0.06 + 0.05 + 0.06 + 0.06 = 0.55$ minutes
Average Actual Time = $\frac{\text{Sum of readings}}{\text{Number of readings}} = \frac{0.55}{10} = 0.055$ minutes
Step 2: Calculate Normal Time
Now, apply the performance rating (120%) to the average actual time.
Performance Rating = 120%
Normal Time = $0.055 \text{ minutes} \times \frac{120}{100}$
Normal Time = $0.055 \times 1.20$
Normal Time = $0.066$ minutes
Conclusion
Therefore, the normal time for the element is 0.066 minutes.
Important Questions from Operations Management - Teaching
- A number of programs have been used to improve work processes, They include
(i) BEP
(ii) STS
(iii) SOP
(iv) ISO 9000
(v) SPC
(vi) JIT
Choose the correct answer from the code given below :
Code : - Equipments found in the production area are :
(a) Griddle
(b) Charbroiler
(c) Portion scale
(d) Deck oven
(e) Refrigerator
(f) Clambell cooker - Arrange in the right sequence the processes involved in the manufacture of milk powder :
(a) Pasteurization
(b) Evaporation
(c) Milling
(d) Packing
(e) Clarification
(f) Fat seperation
(g) Roller drying Match the symbols used in preparation of process chart given in List - I with their description in List - II:
List - I Symbols used in process chart List - II Description A. $\nabla$ I. Movement from place to place B. $\square$ II. Delay C. $\bigcirc$ III. Inspection for quantity and quality D. 
IV. Movement and Operation Choose the correct answer from the options given below :
In Operations management of an organization, the activities that assure the actual performance in accordance with planned performance are called:
