Which statement about pneumatic

: You are testing the external inflation bladder on an immersion suit and find it has a very slow leak．Which action should be taken ________．

A.Replace the suit
B.Replace the inflation bladder
C.Take it out of service and repair in accordance with the manufacturers instructions
D.Some leakage should be expected and a topping off tube is provided; no other action is necessary

: You are moving a gas free tank barge to dry dock for repairs．The barge must have onboard a valid ______．

A.The top of the deck line is marked at the highest point of the freeboard deck，including camber，at the midships point
B.A vessel with wooden planks on a steel deck will have the deck line marked at the intersection of the upper line of the wood sheathing with the side shell
C.The deck edge is marked at the intersection of the freeboard deck with the side shell，at the lowest point of sheer，with the vessel at even trim
D.On a vessel with a rounded stringer-sheer plate，the deck line is marked where the stringer plate turns down from the plane of the deck line

A.The operator must wear safety goggles or glasses
B.The equipment must be grounded to prevent shock hazard
C.The chipping mechanism is made of a non-sparking material that is safe to use near explosive atmospheres
D.The needles of the needle-type chipping gun must be replaced when they have been blunted more than 1/2 of their diameter

: Which molten substance is poured into the basket of a wire rope socket being fitted to the end of a wire rope ________．

: Where do fatigue failures of wire rope mooring lines usually occur ________．

Which statement about pneumatic chipping tools is TRUE ________．