It’s a cylindrical tank mounted on supporting structure on the roof of the transformer’s main tank.

• assemble

• cold room

• cut

• Conservator tank

It’s the part of a machine or piece of equipment that house the controls.

• Drill

• Coontrol panel

• Control panel

• Diode

To break the surface of something, or to divide or make something smaller, using a sharp tool, especially a knife.

• Install

• File

• cut

• Charge

instruments that measure current flow in amperes and display current levels on a digital.

• Digital multimeter

• File

• Install

• Digital hook ammeter

It is a test tool used to measure two or more electrical values principally voltage (volts), currents (amps) and resistance (hom).

• Digital Multimeter

• Digital hook ammeter

• Dismount

• Electric generator

a device that allows current to flow in one direction but not the other. 

• electrical current

• inductance

• fuse

• Diode

to unfasten something, especially to break the connection between a supply of electricity, gas, water, etc. and a device or piece of equipment.

• electrical current

• electric generator

• disconnect

• drill

To take down, or apart, as a machine.

• dismount

• duct assembly

• hard hat

• fix

It's a loose-fitting, disposable device that creates a physical barrier between the mouth and nose of the wearer and potential contaminants in the immediate environment.

• disposable products

• disposable mask

• hard hat

• safety googles

It's a thermometer used to check the temperature of a refrigerator.

• digital thermometer

• digital hoot anmeter

• digital multimeter

• digital clock