Physics, asked by hamzakhan9024, 1 year ago

Bitumen of grade 30/40 means:
(1) Its penetration value is 30 to 40 mm
(2) Its penetration value is 3 to 4 mm
(3) Its penetration value is 3
(4) Its penetration value is 4

Answers

Answered by darshanagni3
1

its penetration is 3 to 4 mmm

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