Theory of Machine Angle of ascent of cam is defined as the angle Through which the cam rotates during the period in which the follower remains in highest position Of rotation of the cam for a definite displacement of the follower Moved by the cam from the instant the follower begins to rise, till it reaches its highest position During which the follower returns to its initial position Through which the cam rotates during the period in which the follower remains in highest position Of rotation of the cam for a definite displacement of the follower Moved by the cam from the instant the follower begins to rise, till it reaches its highest position During which the follower returns to its initial position ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 90° + φ α = 45° + φ/2 α = 90° - φ α = 45° - φ/2 α = 90° + φ α = 45° + φ/2 α = 90° - φ α = 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of higher pair is Belt, rope and chain drives Gears, cams All of these Ball and roller bearings Belt, rope and chain drives Gears, cams All of these Ball and roller bearings ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to Zero One π π/2 Zero One π π/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The danger of breakage and vibration is maximum Above the critical speed Near the critical speed None of these Below the critical speed Above the critical speed Near the critical speed None of these Below the critical speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, the link constitutes a Crank pin, crankshaft and flywheel Connecting rod with big and small end brasses, caps and bolts Piston, piston rod and cross-head All of these Crank pin, crankshaft and flywheel Connecting rod with big and small end brasses, caps and bolts Piston, piston rod and cross-head All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS