Theory of Machine The lower pairs are _________ pairs. Force-closed None of these Self-closed Friction closed Force-closed None of these Self-closed Friction closed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as Damping coefficient Magnification factor Logarithmic decrement Damping factor Damping coefficient Magnification factor Logarithmic decrement Damping factor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In gears, interference takes place when Gear teeth are undercut Pitch of the gears is not same The tip of a tooth of a mating gear digs into the portion between base and root circles Gears do not move smoothly in the absence of lubrication Gear teeth are undercut Pitch of the gears is not same The tip of a tooth of a mating gear digs into the portion between base and root circles Gears do not move smoothly in the absence of lubrication ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, the link constitutes a Connecting rod with big and small end brasses, caps and bolts Crank pin, crankshaft and flywheel All of these Piston, piston rod and cross-head Connecting rod with big and small end brasses, caps and bolts Crank pin, crankshaft and flywheel All of these Piston, piston rod and cross-head ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity of crank, r = Radius of crank pin circle, θ = Angle turned by crank from inner dead center, and n = Ratio of length of connecting rod to the radius of crank) ω²r [cos θ + (cos 2θ/n)] ω²r [sin θ + (sin 2θ/n)] ωr [sin θ + (sin 2θ/n)] ωr [cos θ + (cos 2θ/n)] ω²r [cos θ + (cos 2θ/n)] ω²r [sin θ + (sin 2θ/n)] ωr [sin θ + (sin 2θ/n)] ωr [cos θ + (cos 2θ/n)] ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous centers which vary with the configuration of mechanism are called Permanent instantaneous centers None of these Neither fixed nor permanent instantaneous centers Fixed instantaneous centers Permanent instantaneous centers None of these Neither fixed nor permanent instantaneous centers Fixed instantaneous centers ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS