更多"The sign used to caution persons ap"的相关试题:
[单项选择]The sign used to caution persons approaching the gangway of a tank barge during cargo transfer reads（）.
A. warning, keep off,stay clear
B. danger, do not board
C. warning, no smoking, no open lights, no visitors
D. dangerous cargo being transferred
[单项选择]The vertical distance between G and M is used as a measure of（）.
A. stability at all angles of inclination
B. initial stability
C. stability at angles less than the limit of positive stability
D. stability at angles less than the downflooding angle
[单项选择]Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact（）.
A. the Canadian Coast Guard
B. Ice Sarnia
C. the Ice Navigation Center
D. the icebreaker assigned to the area
[单项选择]Persons engaged in the transport of dangerous goods shall（）training in the contents of dangerous goods requirements commensurate with their responsibilities.
A. have
B. make
C. take
D. receive
[单项选择]Persons who have taken part in salvage operations，notwithstanding the express and reasonable prohibition on the part of（），have no right to any remuneration.
A. the vessel from which the services were rendered
B. the vessel to which the services were rendered
C. the persons whose lives were saved
D. the salvors of the vessel，her cargo and accessories
[单项选择]Persons who have swallowed a non-petroleum based poison are given large quantities of warm soapy water or warm salt water to （）
A. induce vomiting
B. absorb the poison from the blood
C. neutralize the poison in the blood
D. increase the digestive process and eliminate the poison
[单项选择]All persons or vessels within the lock area，including the lock approach channels，come under the authority of the（）.
A. dockmaster
B. dock captain
C. lockmaster
D. lock foreman
[单项选择]Your name and（）sign.
A. call
B. calling
C. called
D. calling at
[简答题]编写一段程序，使汇编程序根据SIGN中的内容分别产生不同的指令。如果（SIGN）=0，则用字节变量DIVD中的无符号数除以字节变量SCALE；如果（SIGN）=1，则用字节变量DIVD中的带符号数除以字节变量SCALE，结果都存放在字节变量RESULT中。
[单项选择]The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with（）.
A. An atomic time standard
B. Daylight Savings Time
C. Eastern Standard Time
D. Greenwich Mean Time
[单项选择]Which statement is TRUE concerning the danger signal?（）.
A. When any vessel fails to understand the intentions of an approaching vessel she must sound the danger signal
B. Only the stand-on vessel can sound the danger signal
C. Distress signals may be used in place of the danger signal
D. The danger signal consists of 4 or more short blasts of the whistle
[简答题] 处方 硬脂酸120g 单硬脂酸甘油酯35g 液状石蜡60g 凡士林10g 羊毛脂50g 三乙醇胺4g 羟苯乙酯1.5g 甘油50g 蒸馏水适量 制成1000g 要求： （1）写出处方中油相包括哪些成分？ （2）写出处方中水相包括哪些成分？ （3）形成何种类型乳剂基质？为什么？
[单项选择]Navigational marks used for informational or regulatory purposes are（）.
A. solid yellow
B. white with orange geometric shapes
C. red and white vertically-striped
D. green and red horizontally-banded
[单项选择]Overflow valve is used to （）
A. control the fluid flow through it
B. prevent the pressure before it over the specified valve
C. make the pressure after it steady
D. control the direction of oil flow
[单项选择]The only cylindrical chart projection widely used for navigation is the （）.
A. Lambert conformal
B. Mercator
C. azimuthal
D. gnomonic
[单项选择]The material used extensively as electrolytic protection around bronze propellers is（）.
A. Brass
B. Copper
C. Lead
D. Zinc
