Theory of Machine If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach 0° 180° 90° 360° 0° 180° 90° 360° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is 6,000 r.p.m. 5,367 r.p.m. 9,360 r.p.m. 12,000 r.p.m. 6,000 r.p.m. 5,367 r.p.m. 9,360 r.p.m. 12,000 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Scotch yoke mechanism is used to generate Logarithms Sine functions Inversions Square roots Logarithms Sine functions Inversions Square roots ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Crowning on pulleys helps In increasing velocity ratio In decreasing the slip of the belt Increase belt and pulley life For automatic adjustment of belt position so that belt runs centrally In increasing velocity ratio In decreasing the slip of the belt Increase belt and pulley life For automatic adjustment of belt position so that belt runs centrally ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the Average tension of the tight side and slack side of the belt Sum of the tensions on the tight side and slack side of the belt Tension in the tight side of the belt Tension in the slack side of the belt Average tension of the tight side and slack side of the belt Sum of the tensions on the tight side and slack side of the belt Tension in the tight side of the belt Tension in the slack side of the belt ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface) (1/2) μ W R μ W R (3/4) μ W R (2/3) μ W R (1/2) μ W R μ W R (3/4) μ W R (2/3) μ W R ANSWER DOWNLOAD EXAMIANS APP
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