List-I (Gear types)List-II (Application)A. Worm gears 1.

List-I (Gear types)	List-II (Application)
A. Worm gears	1. Parallel shafts
B. Cross helical gears	2. Nonparallel, intersecting shafts
C. Bevel gears	3. Nonparallel, non intersecting shafts
D. Spur gears	4. Large speed ratios

1. A - 2 , B - 3 , C - 1 , D - 4
2. A - 4 , B - 1 , C - 3 , D - 2
3. A - 4 , B - 3 , C - 2 , D - 1
4. A - 3 , B - 1 , C - 2 , D - 4

A → 4, B → 3, C → 2, D → 1