Machine Design Which of the following is a permanent fastening? Cotters Rivets Keys Bolts Cotters Rivets Keys Bolts ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be 1.57 d 1.2 d 0.8 d 1.8 d 1.57 d 1.2 d 0.8 d 1.8 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design The cam follower extensively used in aircraft engines is Knife edge follower Roller follower Flat faced follower Spherical faced follower Knife edge follower Roller follower Flat faced follower Spherical faced follower ANSWER DOWNLOAD EXAMIANS APP
Machine Design The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt as (Kf - 1)/ (Kt - 1) (Kt + 1)/ (Kf + 1) (Kf + 1)/ (Kt + 1) (Kt - 1)/ (Kf - 1) (Kf - 1)/ (Kt - 1) (Kt + 1)/ (Kf + 1) (Kf + 1)/ (Kt + 1) (Kt - 1)/ (Kf - 1) ANSWER DOWNLOAD EXAMIANS APP
Machine Design A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be τ 4 τ 2 τ τ/2 τ 4 τ 2 τ τ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Stress concentration in static loading is more serious in Brittle materials Equally serious in both cases Ductile materials Depends on other factors Brittle materials Equally serious in both cases Ductile materials Depends on other factors ANSWER DOWNLOAD EXAMIANS APP
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