The angle of inclination of the plane, at which the body begins to move down the plane is called Angle of projection Angle of friction None of these Angle of repose TRUE ANSWER : ? YOUR ANSWER : ?
The component of the acceleration, parallel to the velocity of the particle, at the given instant is called Tangential component Coriolis component Radial component None of these TRUE ANSWER : ? YOUR ANSWER : ?
Rectangular bar in a rectangular hole is the following type of pair Incompletely constrained motion Completely constrained motion Freely constrained motion Partially constrained motion TRUE ANSWER : ? YOUR ANSWER : ?
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 centrifugal acceleration All points of the disc have the same velocity The point on the disc making contact with the plane surface has zero acceleration The centre of the disc has zero acceleration TRUE ANSWER : ? YOUR ANSWER : ?
A slider crank chain consists of following numbers of turning and sliding pairs 3, 1 4, 0 2, 2 1, 3 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the below are inversions of slider crank mechanism? 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism 1, 3 and 4 1, 2 and 4 2, 3 and 4 1, 2 and 3 TRUE ANSWER : ? YOUR ANSWER : ?
The natural frequency of free transverse vibrations due to a point load acting over a simply supported shaft is equal to (where δ = Static deflection of a simply supported shaft due to the point load) 0.5615/√δ 0.6253/√δ 0.4985/√δ 0.571/√δ TRUE ANSWER : ? YOUR ANSWER : ?
The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface) (3/4) μ W R (2/3) μ W R (1/2) μ W R μ W R TRUE ANSWER : ? YOUR ANSWER : ?
When the sleeve of a Porter governor moves downwards, the governor speed Increases First increases and then decreases Remain unaffected Decreases TRUE ANSWER : ? YOUR ANSWER : ?
The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r₁ = Minimum radius of the cam, r₂ = Radius of the roller follower, and θ = Angle turned by the cam from the beginning of the follower displacement) (r₁ - r₂) (1 - cosθ) (r₁ + r₂) (1 + cosθ) (r₁ - r₂) [(1 - cosθ)/cosθ] (r₁ + r₂) [(1 - cosθ)/cosθ] TRUE ANSWER : ? YOUR ANSWER : ?