action
activity
belt
blue
boots
cable
cement
check
climbing
connection
dangerous
electric
electrical
electrician
electricity
energy
engineering
equipment
fireman
foreman
gloves
hand
hanging
hat
helmet
high
hoist
home
hook
install
iron
job
labor
line
man
manual
metal
occupation
pillar
pole
post
power
professional
repair
rope
rusty
safety
service
sky
system
technician
technology
volt
voltage
watt
wire
worker
working
wrench