Theory of Machine Under logarithmic decrement, the amplitude of successive vibrations are In logarithmic progression In arithmetic progression Constant In geometric progression In logarithmic progression In arithmetic progression Constant In geometric progression ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will Remain same as before Become equal to R/4 Become equal to 2R Become equal to R/2 Remain same as before Become equal to R/4 Become equal to 2R Become equal to R/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The pair is known as a higher pair, when the relative motion between the elements of a pair is Turning only Partly turning and partly sliding Sliding only Rolling only Turning only Partly turning and partly sliding Sliding only Rolling only ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following has sliding motion? Connecting rod Crank pin Crank Cross-head Connecting rod Crank pin Crank Cross-head ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where r₁ and r₂ = External and internal radii of collar respectively) (2/3). μ W (r₁ + r₂) (1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W (r₁ + r₂) (2/3). μ W (r₁ + r₂) (1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W (r₁ + r₂) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A universal joint is an example of Lower pair Higher pair Rolling pair Sliding pair Lower pair Higher pair Rolling pair Sliding pair ANSWER DOWNLOAD EXAMIANS APP
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