- check analysis
- checking surface
- chamfering
- channel efficiency
- channel irrigation
- channel section
- charcoal
- charging crane
- charring
- chart scale
- chased thread
- chassis lubrication
- chatter
- check dam
- check drop
- check gate
- check mark
- check valve
- checking machine
- cheek
- chemical grout
- chemical power
- cherry
- cherrying
- chest drill
- chief mechanic
- chill
- chilled steel
- chip
- chip cap
- chip conveyor
- chip thickness
- chipbreaker chip
- chipless
- chipper
- chipping
- chipping chisel
- chiprupter
- chips layer
- chisel
- chiselling
- cheese
- cheese head
- chemical cleaner
- chemical cooling
- chemical erosion
- chemical injection
- chemical test
- cherry-red
- chest
- chill test
- chimney cap
- chip breaker
- chip curl
- chipperman
- chipping hammer
- chipping-off
- chisel cut
- chisel scarfing
- chop
- chordal thickness
- circle drawbar
- circle pliers
- circlet
- circuit breaker
- circuit point
- circuit terminal
- circular planing
- circular saw
- circular shears
- circular slotter
- circular template
- circular thickness
- circularity
- circumferential measurement
- circumflexion
- clack
- clack seat
- clad
- clamp frame
- clamping lever
- clamping sleeve
- clarifier
- classifier
- classifying screen
- clastic rock
- claw stop
- clay concrete
- clay foundation
- clean
- cleanout
- clear
- clear height
- chock
- choke aggregate
- choke dike
- choke joint
- choke valve
- choked nozzle
- choking