Machine Design A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible tensile stress in the metal is 20 N/mm², then the thickness of the metal required for making the pipe will be 25 mm 10 mm 5 mm 15 mm 25 mm 10 mm 5 mm 15 mm ANSWER DOWNLOAD EXAMIANS APP
Machine Design A hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material. Greater Medium Smaller None of these Greater Medium Smaller None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 90° - φ 45° - φ 45° + φ/2 45° - φ/2 90° - φ 45° - φ 45° + φ/2 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Allen bolts are Designed for shock load Provided with hexagonal depression in head Used in aircraft application Self locking bolts Designed for shock load Provided with hexagonal depression in head Used in aircraft application Self locking bolts ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle. Equal to Smaller than Larger than None of these Equal to Smaller than Larger than None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The flank of the tooth is the Surface of the top of the tooth Width of the tooth measured along the pitch circle Surface of the tooth below the pitch surface Surface of the tooth above the pitch surface Surface of the top of the tooth Width of the tooth measured along the pitch circle Surface of the tooth below the pitch surface Surface of the tooth above the pitch surface ANSWER DOWNLOAD EXAMIANS APP
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