Theory of Machine In involute gears, the pressure angle is Always constant Dependent on the size of teeth Dependent on the size of gears Always variable Always constant Dependent on the size of teeth Dependent on the size of gears Always variable ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the speed of the engine fluctuates continuously above and below the mean speed, the governor is said to be Isochronous Unstable Hunt Stable Isochronous Unstable Hunt Stable ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to I₂/G I₂/G² G².I₂ G.I₂ I₂/G I₂/G² G².I₂ G.I₂ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft) (1/2π). √(q/I) 2π. √(q/I) 1/2π 2π qI (1/2π). √(q/I) 2π. √(q/I) 1/2π 2π qI ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In its simplest form, a cam mechanism consists of following number of links 4 1 2 3 4 1 2 3 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A watt's governor can work satisfactorily at speeds from 60 to 80 r.p.m. 200 to 300 r.p.m. 80 to 100 r.p.m. 100 to 200 r.p.m. 60 to 80 r.p.m. 200 to 300 r.p.m. 80 to 100 r.p.m. 100 to 200 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
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