Multiple Choice Question (MCQ)
Question: What is the minimum compressive strength of first-class bricks?
A.
120 kg/cm<sup>2</sup>
B.
115 kg/cm<sup>2</sup>
C.
110 kg/cm<sup>2</sup>
D.
105 kg/cm<sup>2</sup>
Correct Answer: 105 kg/cm<sup>2</sup>