Machine Design Ball bearing type screws are found in following application Steering mechanism Screw jack Aeroplane engines Crane Steering mechanism Screw jack Aeroplane engines Crane ANSWER DOWNLOAD EXAMIANS APP
Machine Design The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to (Where, Pc = tension in belt due to centrifugal force) 3 Pc 2 Pc 1 Pc Pc/3 3 Pc 2 Pc 1 Pc Pc/3 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) 45° + φ/2 45° - φ/2 90° - φ 45° - φ 45° + φ/2 45° - φ/2 90° - φ 45° - φ ANSWER DOWNLOAD EXAMIANS APP
Machine Design For high speed engines, the cam follower should move with Simple harmonic motion Uniform acceleration and retardation Uniform velocity Cycloidal motion Simple harmonic motion Uniform acceleration and retardation Uniform velocity Cycloidal motion ANSWER DOWNLOAD EXAMIANS APP
Machine Design In worm, gears, pitch lead angle is Half the angle between two inclined faces in axial plane The angle between the tangent to the pitch helix and the plane of rotation None of these The angle between the tangent to the pitch helix and an element of the cylinder Half the angle between two inclined faces in axial plane The angle between the tangent to the pitch helix and the plane of rotation None of these The angle between the tangent to the pitch helix and an element of the cylinder ANSWER DOWNLOAD EXAMIANS APP
Machine Design The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of 0.55 0.75 0.65 0.45 0.55 0.75 0.65 0.45 ANSWER DOWNLOAD EXAMIANS APP
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