【Daily Question】Question from Issue 20151117
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. For rainwater pipes that are susceptible to vibration, ( ) pipes should be used. A. Plastic pipe B. Cast iron pipe C. Concrete pipe D. Steel pipe 【Production and Management Division】Seeking moderators and technical discussants to join
For rainwater pipes that are susceptible to vibration, (D) pipes should be selected. A. Plastic pipe B. Cast iron pipe C. Concrete pipe D. Steel pipe
For rainwater pipes that are susceptible to vibration, (D) pipes should be selected. A. Plastic pipe B. Cast iron pipe C. Concrete pipe D. Steel pipe
For rainwater pipes that are susceptible to vibration, ( ) pipes should be used. D, steel pipe
Reply reward: +1 wealth point. For rainwater pipes that are prone to vibration, (D) type pipes should be used. A. Plastic pipe B. Cast iron pipe C. Concrete pipe D. Steel pipe
D. Steel pipe. －－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
For rainwater pipes that are susceptible to vibration, (d) pipes should be selected. D, steel pipe
For rainwater pipes that are susceptible to vibration, (D, steel pipes) should be used.