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A coupling is a mechanical device that temporarily joins two rotating shafts to each other.
Explanation: A coupling permanently joins two rotating shafts.
Which of the following joins two rotating shafts to each other?a) Keyb) Couplingc) Geard) Belt drive
Oldham coupling i used to connect two shafts having intersecting axes.a) Trueb) False
Spur gears can be used only when the two shafts are parallel.a) Trueb) False
A knuckle joint is unsuitable for two rotating shafts, which transmit torquea) Trueb) False
A machine started malfunctioning due to some issues with the coupling. The coupling emplaced in the machine was Oldham. The only coupling available in the workshop is Hooke’s coupling. So Oldham coupling can be replaced by Hooke’s coupling.a) Trueb) False
Solid shafts are used in epicyclic gearboxes.a) Trueb) False
Gear drive don’t require precise alignment of shafts.a) Trueb) False
Entire torque is transmitted by friction in the clamp coupling.a) Trueb) False
Power is transmitted by only in rigid flange coupling.a) Trueb) False
A muff coupling is connecting two shafts. The torque involved is 650N-m. The shaft diameter is 45mm with length and breadth of the key being 14mm and 80mm respectively. Find the shear stress induced in the key.a) 30.2N/mm²b) 25.8N/mm²c) 34.4N/mm²d) None of the listed