Portable Power Tools (Unit 14)
fully solved & updated 2025
Sawhorse (Trestle) - answer A wood or metal bar with legs, used for
temporary support of materials
Ground-fault Circuit interrupter (GFCI) - answer A device that cuts off the
electricity if even very tiny amounts of current leave the normal circuit
Double insulated - answer Motor with electrical parts insulated or
separated from the user by special insulation inside the motor and by its
insulating plastic motor housing
Air tool - answer A tool powered by compressed air
Compressed air - answer Air pumped under high pressure that may be
carried by pipe, tubing, or reinforced hose.
Duty cycle - answer The proportion of time a motor or welder can run
without overheating
Continuous duty - answer An electrical tool that can be used without any
cooling-off period over 6- or -8 hours a day
Variable Speed - answer Speed that can be controlled by the operator
Reversible - answer Capable of running backward as well as forward
Hammer - answer A type of tool for driving other implements and
hardware; also, a rapid striking action that gives a power drill more power
fully solved & updated 2025
Sawhorse (Trestle) - answer A wood or metal bar with legs, used for
temporary support of materials
Ground-fault Circuit interrupter (GFCI) - answer A device that cuts off the
electricity if even very tiny amounts of current leave the normal circuit
Double insulated - answer Motor with electrical parts insulated or
separated from the user by special insulation inside the motor and by its
insulating plastic motor housing
Air tool - answer A tool powered by compressed air
Compressed air - answer Air pumped under high pressure that may be
carried by pipe, tubing, or reinforced hose.
Duty cycle - answer The proportion of time a motor or welder can run
without overheating
Continuous duty - answer An electrical tool that can be used without any
cooling-off period over 6- or -8 hours a day
Variable Speed - answer Speed that can be controlled by the operator
Reversible - answer Capable of running backward as well as forward
Hammer - answer A type of tool for driving other implements and
hardware; also, a rapid striking action that gives a power drill more power
