The velocity of sliding of meshing gear teeth is(Where ω₁ and ω₂ are angular velocities of meshing gears and ‘y’ is distance between point of contact and the pitch point) (ω₁ + ω₂) y (ω₁ + ω₂)/y (ω₁/ω₂) y (ω₁ × ω₂) y TRUE ANSWER : ? YOUR ANSWER : ?
A spring controlled governor is said to be isochronous when the controlling force Remain constant for all radii of rotation Increases as the radius of rotation increases Increases as the radius of rotation decreases Decreases as the radius of rotation increases TRUE ANSWER : ? YOUR ANSWER : ?
The pressure angle of a cam depends upon All of these Offset between center lines of cam and follower Lift of follower Angle of ascent TRUE ANSWER : ? YOUR ANSWER : ?
In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from 70°- 80° 60°-70° 50°- 60° 80°- 90° TRUE ANSWER : ? YOUR ANSWER : ?
When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle) [(r² + R²) cosφ]/2 [(r + R) cosφ]/2 [(r + R) sinφ]/2 [(r² + R²) sinφ]/2 TRUE ANSWER : ? YOUR ANSWER : ?
The mechanism in which two are turning pairs and two are sliding pairs, is called a Double slider crank chain All of these Elliptical trammel Scotch yoke mechanism TRUE ANSWER : ? YOUR ANSWER : ?
The frictional torque transmitted in a conical pivot bearing with assumption of uniform pressure is __________ as compared to uniform wear. Same None of these More Less TRUE ANSWER : ? YOUR ANSWER : ?
A cam with a roller follower would constitute following type of pair Lower pair Open pair Close pair Higher pair TRUE ANSWER : ? YOUR ANSWER : ?
The frequency of oscillation of a compound pendulum is (1/2π). √[gh/(kG² + h²)] (1/2π). √[(kG² + h²)/gh] 2π. √[(kG² + h²)/gh] 2π. √[gh/(kG² + h²)] TRUE ANSWER : ? YOUR ANSWER : ?
The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is (Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing) ¾μWR ½μWR ²/₃ μWR μwr TRUE ANSWER : ? YOUR ANSWER : ?