What is it used for?
You use this tool to tighten or loosen screws.
screwdriver
This machine is used to make holes in a workpiece.
drill / drilling machine
to measure — Simple Present
The technician / the voltage
The technician measures the voltage.
Safety goggles are only necessary when sparks are visible.
This statement is incorrect. Safety goggles are required whenever there is a risk of chips, dust, or flying particles, not only when sparks are visible.
Safety gloves should not be wear when working on rotating machines.
Safety gloves should not be worn when working on rotating machines.
You use this to measure longer distances on a workpiece.
tape measure
This machine is used to smooth a surface or remove material.
grinding machine
to install — Present Perfect Passive
A new safety device
A new safety device has been installed.
A workpiece can be held by hand if the drilling operation is short and simple.
This statement is incorrect. Even a short drilling operation can cause the workpiece to move or rotate unexpectedly. It must be secured properly before the machine is used.
Every operator must follows the safety instructions before starting the machine.
Every operator must follow the safety instructions before starting the machine.
You use this to hold a workpiece firmly in place.
vice
This machine rotates the workpiece during machining.
lathe
to inspect — Past Perfect Passive
The machine / before the accident
The machine had been inspected before the accident.
If a machine still works properly, unusual vibrations are not necessarily a safety issue.
This statement is misleading. Unusual vibrations may indicate mechanical wear, imbalance, or incorrect clamping. Even if the machine is still running, the situation may develop into a serious safety hazard.
If the protective cover has been removed, the machine must not operated.
If the protective cover has been removed, the machine must not be operated.
You use this to measure inside and outside dimensions very accurately.
vernier caliper / caliper
This machine uses a rotating tool to cut slots, faces, or contours.
milling machine
to complete — Future Perfect
The engineers / the repair / by tomorrow
The engineers will have completed the repair by tomorrow.
An experienced operator may remove a safety guard temporarily if higher precision is required.
This statement is completely unacceptable. Experience does not justify bypassing protective devices. Safety guards are mandatory because they reduce the risk of contact with hazardous moving parts.
Workers which use grinding machines should always check the condition of the wheel first.
Workers who use grinding machines should always check the condition of the wheel first.
You use this to measure very small thicknesses or diameters with high precision.
micrometer
This machine is computer-controlled and can carry out very precise machining operations.
CNC machine
to replace — modal perfect passive
The filter / should / before operation resumed
The filter should have been replaced before operation resumed.
Efficiency in production can, in exceptional cases, be more important than full compliance with workshop safety procedures.
This statement is fundamentally wrong. Safety procedures are not optional and must never be sacrificed for efficiency. Ignoring them can lead to severe injuries, machine damage, and legal consequences.
Not until the machine has completely stopped, the operator may remove the workpiece.
Not until the machine has completely stopped may the operator remove the workpiece.