Machine Design A screw will be self locking, if Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is less than helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is less than helix angle Friction angle is more than helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design Allen bolts are Provided with hexagonal depression in head Self locking bolts Designed for shock load Used in aircraft application Provided with hexagonal depression in head Self locking bolts Designed for shock load Used in aircraft application ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the belt is transmitting maximum power, the belt speed should be(Where, m = mass of belt per meter (kg/m) and Pmax = maximum permissible tension in belt (N)) √(Pmax / 3m) √(Pmax / m) √(3m /Pmax) √(Pmax / 2m) √(Pmax / 3m) √(Pmax / m) √(3m /Pmax) √(Pmax / 2m) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket) p = D sin (360°/T) p = D sin (120°/T) p = D sin (90°/T) p = D sin (180°/T) p = D sin (360°/T) p = D sin (120°/T) p = D sin (90°/T) p = D sin (180°/T) ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to Indian standard specifications, a Grey cast iron designated by 'FG 200' means that the Maximum shear strength is 200 N/mm² Minimum tensile strength is 200 N/mm² Carbon content is 2% Maximum compressive strength is 200 N/mm² Maximum shear strength is 200 N/mm² Minimum tensile strength is 200 N/mm² Carbon content is 2% Maximum compressive strength is 200 N/mm² ANSWER DOWNLOAD EXAMIANS APP
Machine Design A tapered key which fits in a key way in the hub and is flat on the shaft, is known as Flat saddle key Gib-head key Wood ruff key Feather key Flat saddle key Gib-head key Wood ruff key Feather key ANSWER DOWNLOAD EXAMIANS APP
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