The following production areas that are not part of the restricted space are ( ).
Check if the pressure is ( ) before using the air breather.
The following gas masks, ( ) are suitable for any situation and environment.
Air respirator alarm when checking pressure ( ) before use.
According to the principle of anti-virus, respiratory anti-virus supplies are ( ).
The following statement that is not true is ( ).
In case of fire in electrical equipment, where permitted, first ( ).
In the event of a sudden fire accident, in order to prevent smoke and toxic gas damage, the fire escape should be ( ).
The incorrect way to do this in the event of a chemical hazard burning in a no-fire zone is ( ).
Being in a tall building with a fire below, the incorrect thing to do is ( ).
In everyday life, the incorrect thing to do in the event of a fire is ( ).
The following statement about the properties of hydrogen sulfide is correct ( ).
The incorrect statement about hydrogen sulfide in the following options is ( ).
The following statement regarding the properties of hydrogen sulfide, is correct ( ).
The maximum permissible concentration of hydrogen sulfide in the air is ( ) according to the national standard.