A right angled bell-crank is designed to raise a load of 5kN at short – McqOptions

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1.	A right angled bell-crank is designed to raise a load of 5kN at short arm whose length is 100mm. Also longer arm is of length 500mm. If permissible bearing pressure on pin is 10N/mm² and diameter of the 20mm, find the length of the pin.
A.	35.5mm
B.	25.5mm
C.	20mm
D.	30mm
Answer» C. 20mm

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