单项选择题
A.an above-deck datum such as the top of the ullage pipe B.the tank ceiling aboard transversely framed vessels C.the tank top D.a thievage mark below the edge of the deck
Ullages are measured from（）.A.the tank ceilingB.the tan...
单项选择题Ullages are measured from（）.
A.the tank ceiling B.the tank top bushing C.the thievage mark D.an above deck datum
Ullage measurements are taken from the top of the liqui...
单项选择题Ullage measurements are taken from the top of the liquid to（）.
A.the base of the expansion trunk B.the base of the ullage port C.a line scribed within the ullage port D.an above-deck datum，usually the top of the ullage hole
To serve as a person in charge of transfer operations o...
单项选择题To serve as a person in charge of transfer operations on board a self-propelled tanker，an individual must（）.
A.hold a valid officer's license for inspected vessels B.be a certificated tankerman C.be 30 years old D.have a letter from the company stating his qualification
