Theory of Machine In under damped vibrating system, the amplitude of vibration Decreases exponentially with time Increases exponentially with time Decreases linearly with time Increases linearly with time Decreases exponentially with time Increases exponentially with time Decreases linearly with time Increases linearly with time ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing) (r/2) cosφ r tanφ r sinφ r cosφ (r/2) cosφ r tanφ r sinφ r cosφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become 16 tp tp /4 4 tp tp /16 16 tp tp /4 4 tp tp /16 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of the belt for maximum power is (where m = Mass of the belt in kg per meter length) T/3 √(3m/T) (T.g)/3 √(T/3m) T/3 √(3m/T) (T.g)/3 √(T/3m) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When two links are connected by a pin joint, their instantaneous center lies At the center of curvature At the pin joint On their point of contact At the center of circle At the center of curvature At the pin joint On their point of contact At the center of circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The mechanism in which two are turning pairs and two are sliding pairs, is called a Scotch yoke mechanism Elliptical trammel All of these Double slider crank chain Scotch yoke mechanism Elliptical trammel All of these Double slider crank chain ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS