Multiple Choice Question (MCQ)

Question: What is the working pressure usually made on joints for pressure test?
A. 5 kg/cm<sup>2</sup>
B. 6 kg/cm<sup>2</sup>
C. 8 kg/cm<sup>2</sup>
D. 10 kg/cm<sup>2</sup>
Correct Answer: 10 kg/cm<sup>2</sup>