What are the parts of an engineer's transit?

1.UPPER PLATE

a.telescope

b.standards

c.compass box

d.plate level vials

e.vertical circle

f.plate verniers

g.optical plummet

h.telescope clamp

i.telescope tangent screw

j.upper clamp

k.upper tangent screw

2.LOWER PLATE

a.lower clamp

b.lower tangent screw

3.LEVELING HEAD ASSEMBLY

a.leveling screw

b.plumb bob chain