Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because Resonance is caused due to the heavy mass of the rotor The system is unbalanced The shafts are rotating at very high speeds Bearing centre line coincides with the axis Resonance is caused due to the heavy mass of the rotor The system is unbalanced The shafts are rotating at very high speeds Bearing centre line coincides with the axis ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The brake commonly used in railway trains is Band and block brake Shoe brake Internal expanding brake Band brake Band and block brake Shoe brake Internal expanding brake Band brake ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to loge(x₁/x₂) x₁/x₂ log(x₁/x₂) log(x₁.x₂) loge(x₁/x₂) x₁/x₂ log(x₁/x₂) log(x₁.x₂) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Angle of dwell of cam is defined as the angle Moved by the cam from the instant the follower begins to rise, till it reaches its highest position During which the follower returns to its initial position Through which the cam rotates during the period in which the follower remains in the highest position Of rotation of the cam for definite displacement of the follower Moved by the cam from the instant the follower begins to rise, till it reaches its highest position During which the follower returns to its initial position Through which the cam rotates during the period in which the follower remains in the highest position Of rotation of the cam for definite displacement of the follower ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the elements of a pair are kept in contact by the action of external forces, the pair is said to be a Lower pair Higher pair Force-closed pair Self-closed pair Lower pair Higher pair Force-closed pair Self-closed pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of higher pair is All of these Belt, rope and chain drives Gears, cams Ball and roller bearings All of these Belt, rope and chain drives Gears, cams Ball and roller bearings ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS