When a manhole opening is made in a drum or shell, the area becomes _______ due to the amount of metal removed.
A ) stronger
B ) weaker
C ) flatter
D ) rougher
Answer: B
When a manhole opening is made in a drum or shell, the area becomes _______ due to the amount of metal removed.
A ) stronger
B ) weaker
C ) flatter
D ) rougher
Answer: B