Solid length for helical compression springs having square and ground ends is given as? A. (n + 2)d B. (n + 3)d C. (n + 1)d D. None of the above Right Answer: A. (n + 2)d Share : January 26, 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 -Which of the following is tested for parallelism between trajectory and a plane?Shear stress energy theory is called as?Boundary layer thickness is the distance from the boundary to the point where velocity of the fluid is?