Theory of Machine When the primary direct crank of a reciprocating engine makes an angle of 'θ' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke. θ/2 4θ 2θ θ θ/2 4θ 2θ θ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous centers which vary with the configuration of mechanism are called Permanent instantaneous centers Fixed instantaneous centers None of these Neither fixed nor permanent instantaneous centers Permanent instantaneous centers Fixed instantaneous centers None of these Neither fixed nor permanent instantaneous centers ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The critical speed of a shaft in revolution per second is __________ as that of natural frequency of transverse vibration. Unpredictable Different Same None of these Unpredictable Different Same None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O) (ω₁ - ω₂)r ω₁.ω₂.r (ω₁ + ω₂)r (ω₁ - ω₂)2r (ω₁ - ω₂)r ω₁.ω₂.r (ω₁ + ω₂)r (ω₁ - ω₂)2r ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The total number of instantaneous centers for a mechanism consisting of n links are n(n - 1)/2 n n/2 n - 1 n(n - 1)/2 n n/2 n - 1 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Crowning on pulleys helps For automatic adjustment of belt position so that belt runs centrally In increasing velocity ratio Increase belt and pulley life In decreasing the slip of the belt For automatic adjustment of belt position so that belt runs centrally In increasing velocity ratio Increase belt and pulley life In decreasing the slip of the belt ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS