Which of the following protects penstock due to sudden variation of flow or velocity of water? A. Anchors B. Forebays C. Trash rack D. Surge Tank Right Answer: D. Surge Tank Share : January 22, 2018 Hassan Ali Mechanical Engineering Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -What is the critical thickness of insulation for hollow cylinder?What is the ratio of the actual work absorbed by an axial flow compressor to the theoretical work called?In an isolated system, ________ can be transferred between the system and its surrounding.