Theory of Machine
The Ackermann steering mechanism is preferred to the Davis type in automobiles because

The former is mathematically accurate
The former is having turning pair
The former is most rigid
The former is most economical

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The contact ratio is given by

(Length of the arc of approach)/cosφ
(Length of path of recess)/(Circular pitch)
(Length of the path of approach)/(Circular pitch)
(Length of the arc of contact)/(Circular pitch)

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, if N coincides with O, then

Acceleration of the piston P is zero and its velocity is maximum
Acceleration of the piston P is maximum and its velocity is zero
Acceleration and velocity of the piston P is maximum
Acceleration and velocity of the piston P is zero

ANSWER DOWNLOAD EXAMIANS APP