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

90° in the direction of rotation of the link containing the path
45° in the direction of rotation of the link containing the path
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

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
Crowning on pulleys helps

In decreasing the slip of the belt
In increasing velocity ratio
Increase belt and pulley life
For automatic adjustment of belt position so that belt runs centrally

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank)

m.ω².r (cos 2θ/n)
m.ω².r (sin 2θ/n)
m.ω².r sinθ
m.ω².r cosθ

ANSWER DOWNLOAD EXAMIANS APP