Question

Which of the following are the sources of variation in quality control process in construction?

1. Material

2. Operator

3. Inspection activity

Select the correct answer using the codes given below:

1. 1, 2 and 3
2. 1 and 2 only
3. 1 and 3 only
4. 2 and 3 only

Answer 1

Correct Answer - Option 1 : 1, 2 and 3

Explanation:

Quality in construction activity is majorly affected due to the variable workforce and the variable quality of construction materials available.

The workforce availability is seasonal and training of the workforce is difficult due to the variation of the workers at the job site. Also, the construction materials differ from place to place and hence difficult to monitor and control the quality.

The inspection activities and methods adopted are also a cause of variation in quality if the protocol and methodology are not followed while inspection.