The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove) secβ cosβ cosecβ sinβ TRUE ANSWER : ? YOUR ANSWER : ?
The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where r₁ and r₂ = External and internal radii of collar respectively) (1/2). μ W (r₁ + r₂) (2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W (r₁ + r₂) TRUE ANSWER : ? YOUR ANSWER : ?
An automobile steering gear is an example of Lower pair Sliding pair Higher pair Rolling pair TRUE ANSWER : ? YOUR ANSWER : ?
When a ship travels in a sea, which of the effect is more dangerous Pitching Steering Rolling All of these TRUE ANSWER : ? YOUR ANSWER : ?
In its simplest form, a cam mechanism consists of following number of links 4 3 1 2 TRUE ANSWER : ? YOUR ANSWER : ?
A rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance apart. The two masses form an equivalent dynamical system, if The sum of mass moment of inertia of the masses about their center of gravity is equal to the mass moment of inertia of the body All of these The center of gravity of the two masses coincides with that of the body The sum of the two masses is equal to the total mass of body TRUE ANSWER : ? YOUR ANSWER : ?
The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to 45° and 225° 270° and 360° 90° and 180° 180° and 270° TRUE ANSWER : ? YOUR ANSWER : ?
The primary unbalanced force is maximum _________ in one revolution of the crank. Twice Sixteen times Four times Eight times TRUE ANSWER : ? YOUR ANSWER : ?
In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called Maximum fluctuation of energy Coefficient of fluctuation of energy Fluctuation of energy None of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
The arrangement is called bevel gearing, when two __________ are connected by gears. Intersecting and coplanar shafts Parallel and non-coplanar shafts Non-intersecting and non-coplanar shafts Parallel and coplanar shafts TRUE ANSWER : ? YOUR ANSWER : ?