Theory of Machine
The frictional torque transmitted in a flat collar bearing, considering uniform wear, is (where r₁ and r₂ = External and internal radii of collar respectively)

(1/2) μ W [(r₁³ - r₂³)/(r₁² - r₂²)]
(2/3) μ W [(r₁³ - r₂³)/(r₁² - r₂²)]
(1/2) μ W (r₁ + r₂)
(2/3) μ W (r₁ + r₂)

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because

Both (A) and (B)
The Ackerman steering gear is most economical
Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels
The Ackerman steering gear consists of turning pairs

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The sense of Coriolis component 2 ωv is same as that of the relative velocity vector v rotated at

45° in the direction opposite to the rotation of the link containing the path
180° in the direction opposite to the rotation of the link containing the path
90° in the direction of rotation of the link containing the path
45° in the direction of rotation of the link containing the path

ANSWER DOWNLOAD EXAMIANS APP