Machine Design
The dedendum circle diameter is equal to (where φ = Pressure angle)

Pitch circle diameter × cosφ
Addendum circle diameter × cosφ
Clearance circle diameter × cosφ
Pitch circle diameter × sinφ

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Tapered roller bearings can take

Both radial and axial loads and the ratio of these being less than unity
Radial load only
Both radial and axial loads and the ratio of these being greater than unity
Axial load only

ANSWER DOWNLOAD EXAMIANS APP