When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as Simple pendulum Torsional pendulum Compound pendulum Second's pendulum TRUE ANSWER : ? YOUR ANSWER : ?
Cylindrical cams can be classified as Tangent Reciprocating Circular None of these TRUE ANSWER : ? YOUR ANSWER : ?
A typewriter mechanism has 7 numbers of binary joints, six links and none of higher pairs. The mechanism is Not sound Soundness would depend upon which link is kept fixed Data is not sufficient to determine same Kinematically sound TRUE ANSWER : ? YOUR ANSWER : ?
A universal joint is an example of Sliding pair Rolling pair Higher pair Lower pair TRUE ANSWER : ? YOUR ANSWER : ?
The number of centers in a crank driven slider crank mechanism is 2 6 4 TRUE ANSWER : ? YOUR ANSWER : ?
The magnitude of velocities of the points on a rigid link is Inversely proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center Directly proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center Inversely proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center Directly proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center TRUE ANSWER : ? YOUR ANSWER : ?
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)2r (ω₁ + ω₂)r ω₁.ω₂.r (ω₁ - ω₂)r TRUE ANSWER : ? YOUR ANSWER : ?
Transmission of power from the engine to the rear axle of an automobile is by means of Worm and wheel method Compound gears Hooke's joint Crown gear TRUE ANSWER : ? YOUR ANSWER : ?
The maximum efficiency of spiral gears is (where θ = Shaft angle, and φ = Friction angle) cos (θ - φ) + 1/ sin (θ + φ) + 1 sin (θ + φ) + 1/ cos (θ - φ) + 1 cos (θ - φ) + 1/ cos (θ + φ) + 1 cos (θ + φ) + 1/ cos (θ - φ) + 1 TRUE ANSWER : ? YOUR ANSWER : ?
Flexible coupling is used because It transmits shocks gradually It is easy to disassemble It is easy to engage and disengage It prevents shock transmission and eliminates stress reversals TRUE ANSWER : ? YOUR ANSWER : ?