upward
downward
no where
none of these
1/24
1/8
4/15
12
crank has uniform angular velocity
crank has non-uniform angular velocity
crank has uniform angular accleration
crank has non-uniform angular acceleration
addendum circle
dedendum circle
pitch circle
clearance circle
For constant velocity ratio transmission between two gears, the common normal at the point of contact must always pass through a fixed point on the line joining the centres of rotation of gears.
For involute gears, the pressure angle changes with the change in centre distance between gears.
The epicyclic gear trains involve rotation of atleast one gear axis about some other gear axis.
all of the above