Answer / rajkumar

Pressure angle is an important factor in design of spur
gear.If the pressure angle is high it results in a noisy
operation.
self locking means worm and worm gear gets locked to itself
preventing further power transmission.

RRB exam model questions pls forward.

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Dear Friends I want to previous 5-10 years technical and non tech. question paper of section engineer (mechanical)of RRB and also tell me how should I prepare for S.E. and which books will help me for technical,aptitude,resoning.plz send me at bkcs.bkcs@rediffmail.com

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