Theory of Machine Efficiency of a screw jack is given by tanα/tan (α - φ) tanα/tan (α +φ) tan (α - φ)/tanα tan (α + φ)/tanα tanα/tan (α - φ) tanα/tan (α +φ) tan (α - φ)/tanα tan (α + φ)/tanα ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the Magnitude of the forces on journal Radius of journal Angular velocity of journal Clearance between journal and bearing Magnitude of the forces on journal Radius of journal Angular velocity of journal Clearance between journal and bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A thin circular disc is rolling with a uniform linear speed, along a straight path on a plane surface. Which of the following statement is correct in this regard? The centre of the disc has zero acceleration The point on the disc making contact with the plane surface has zero acceleration The centre of the disc has centrifugal acceleration All points of the disc have the same velocity The centre of the disc has zero acceleration The point on the disc making contact with the plane surface has zero acceleration The centre of the disc has centrifugal acceleration All points of the disc have the same velocity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a Mechanism Structure Kinematic chain Inversion Mechanism Structure Kinematic chain Inversion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a rigid link OA, velocity of 'A' w.r.t. 'O' will be Perpendicular to OA Along AO Parallel to OA At 45° to OA Perpendicular to OA Along AO Parallel to OA At 45° to OA ANSWER DOWNLOAD EXAMIANS APP
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 90° 360° 180° 0° 90° 360° 180° 0° ANSWER DOWNLOAD EXAMIANS APP
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