A.break glass，pull valve，break glass，pull cylinder control
B.sound evacuation alarm，pull handle
C.open bypass valve，break glass，pull handle
D.open stop valve，open control valve，trip alarm
您可能感興趣的試卷
你可能感興趣的試題
A.you are entering a space containing poisonous vapors
B.you are entering a space containing explosive gases
C.the regulator of the breathing apparatus malfunctions
D.the face piece of the breathing device is too tight
A.Crescent
B.Sheath-screw boom
C.Quadrantal
D.Radial
A.flow of petroleum through pipes
B.spraying or splashing of petroleum
C.settling of solids or water in petroleum
D.All of the above
A.pump out
B.to pump out
C.pumping out
D.be pumped out
A.prevent the passage of flammable gases
B.prevent the passage of poisonous vapors
C.delay the spread of heat and flames
D.maintain watertight integrity
最新試題
As oil pipe line connections were broken，（）quantity of oil was caused to spill onto the wharf and into the dock water.
Centrifugal pumps have what advantage(s) over reciprocating pumps?（）.
An integral part of a blowout preventer that serves as the closing element on an open hole，and whose ends do not fit around the drill pipe but seal against each other and shut off the space below completely is the（）.
An example of a modern anchor which has a stock is a(n)（）.
In ship construction，frame spacing is（）.
The bypass valve on a self-contained breathing device should be opened if（）.
The portable radio apparatus means（）.
An LWT anchor often has difficulty tripping in（）.
In relation to cargo gear，what does SWL mean?（）.
The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.