Clutch and coupling perform the same action.
a) Both being permanent joints
b) No they are different type of joints
c) Both being temporary joints
d) None of the listed
Answer: b
Explanation: Clutch is a temporary joint while coupling is a permanent joint.
Eddy current clutch is a type of friction clutch.a) Yesb) No, it is an electromagnetic type clutchc) It is a mechanical clutchd) None of the listed
While calculating bending stress in the following welded joints which of the welds moment of inertia can be neglected?a) 1b) None of the listedc) Both 1 & 3d) Both 2 & 4
The coefficient of friction is high in multi disk plate clutch.a) Yesb) Coefficient of friction is lessc) Coeffficient of friction is highd) None of the listed
The torque transmitting capacity of cone clutch increases as its semi vertical angle increase.a) Trueb) Decreasesc) Remains constantd) None of the listed
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
A muff coupling is connecting two shafts. The torque involved is 650N-m. The shaft diameter is 45mm with length and height of the key being 14mm and 80mm respectively. Find the compressive stress induced in the key.a) 70.1 N/mm²b) 51.6N/mm²c) 45.5N/mm²d) None of the listed
A cone clutch transmits 24kW at 490rpm. The coefficient of friction is 0.2 and allowable intensity of pressure is 0.35N/mm². The semi cone angle is 12⁰. The outer diameter is fixed as 310mm.Assuming uniform wear theory; find the face width of friction lining.a) None of the listedb) 48.1mmc) 52.2mmd) 56.8mm
Calculate the force acting on the each pin in flexible coupling if torque transmitted is 397N-m and PCD=120mm with number of pins 6.a) 1400.3Nb) 1102.8Nc) 1320.3Nd) None of the listed
If 8 bolts are emplaced in a clamp coupling with shaft diameter 80mm d, calculate the tensile force on each bolt if coefficient of friction is 0.3 and torque transmitted is 4000N-m.a) 51234.4Nb) 45968.3Nc) 41666.7Nd) None of the listed
Toothed belt is preferred over ribbed V belt.a) Yesb) Noc) They both imply to same thingd) None of the listed