Av safety sec B

The current used in domestic 220-240 volt, 50Hz _____ electricity is particularly dangerous.

When carrying out maintenance tasks such as engine ground runs, or system _____ checks, ensure that the correct fire extinguishing appliances are available.

Several systems, especially flight controls and landing gear, are equipped with locks. These are designed to safety _____ actuators during maintenance.

The _____ and radiation effects of weather radar can be hazardous to life.

A fire requires three components to burn, and the _____ of any one of these components will extinguish the fire.

Oil or grease on an oxygen cylinder can cause spontaneous _____ and explosions.

The equipment/machine guards and _____ covers must never be removed or disabled.

There should be no _____ operations in progress during the testing of weather radar.

Fire results from the chemical reaction that occurs when _____ combines rapidly with fuel to produce heat.

The color of the symbol for Class C fire is _____