网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
An occulting light is one in which （）.
A
the period of darkness exceeds the period of light
B
there is only a partial eclipse of the light
C
the periods of light and darkness are equal
D
the period of light exceeds the period of darkness
参考答案
参考解析
解析：
暂无解析
更多 “单选题An occulting light is one in which （）.A the period of darkness exceeds the period of lightB there is only a partial eclipse of the lightC the periods of light and darkness are equalD the period of light exceeds the period of darkness” 相关考题
考题
One of the properties of light is () traveling in wave form. as it goes from one place to another.
A.itB.it’sC.itsD.their
考题
What is true about prenups?A、They lay bare all one’s finances.B、It can sometimes save a couple from a terrible marriage.C、It sheds light on issues which could later widen and result in divorce.D、It is often signed on free will.
考题
A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and ______.A.one sidelight and the masthead light are visibleB.the vessels will pass closer than half a mileC.both vessels sound one prolonged blastD.both sidelights and masthead light(s) are visible
考题
A list man would expect to see any of the following light signals EXCEPT ______.A.two red lightsB.one green lightC.one white lightD.one amber light
考题
A list signal of one white light indicates that the vessel is ______.A.on an even keelB.listing about 1° to the side the light is displayed onC.listing over 5°With the light displayed on the high sideD.listing，and the chutes should be directed to the side where the light is displayed
考题
An anchored vessel on pilotage duty must show which light(s) at night?A.A sternlight onlyB.Anchor lights onlyC.A white light over a red light onlyD.A white light over a red light and anchor lights
考题
A head-on situation at night is one in which you see dead ahead a vessel showing ______.A.one sidelightB.one sidelight and a masthead lightC.one sidelight and two masthead lightsD.both sidelights of a vessel and her masthead light(s)
考题
A single vessel being towed alongside shall exhibit ______.A.one all-round white lightB.sidelights and a stern lightC.only the outboard sidelight and a stern lightD.a masthead light，sidelights，and a stern light
考题
A vessel is overtaking when she can see which light(s) of a vessel ahead?A.Only the stern light of the vesselB.One sidelight and a masthead light of the vesselC.Only a sidelight of the vesselD.The masthead lights of the vessel
考题
A buoy marking a wreck will show a(an) ______.A.white light FL (2) and a topmark of 2 black spheresB.occulting green light and may be letteredC.yellow light and will be numberedD.continuous quick white light and may be numbered
考题
An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead ?______.A.Masthead lights and sidelightsB.One sidelight, the masthead lights and stern-lightC.Both sidelightsD.Stern-light
考题
One of the properties of light is（ ）traveling in wave form as it goes from one place to another.A.it
B.it’s
C.its
D.their
考题
If you are writing or studying,it makes very much difference where the light comes from.People who use books and pens every day have to be especially careful about the way the light shines on their work.
Every house gets its light either from daylight through the windows--which is the best to use--or from lamps or electricity;but whichever kind of light it is,the way it shines toward our book or work is a matter of great importance to the eyes.
Take a book,sit with your back toward the window,and try to read.Your shadow（影子）falls all over the page and makes it almost as bad for your eyes as if you were in a dark room.
Now turnaround and face the window.The page is in the shadow again,while the bright light is in your eyes.
Try sitting with your right side toward the window.This is very well for reading,but if you were writing,the shadow of your hand would fall across the page and bother（打搅）you a little.
There is just one other way:sit with your left side to the window.Now everything is perfect for reading and for writing,too.
Whatever kind of light is in the room,the rule about the right to sit is always the same.
Which of the following is true?A.How the light shines on our work is of much importance.
B.The way the light shines on your work makes no difference.
C.We needn't care about where the light comes from.
D.People can write or study under a light that comes from any direction.
考题
Which of the following is the process a scanner uses to scan images to a computer？（）A、Light is shown through the image and onto the scanner headB、Light is reflected off a mirror onto the Charged Coupled Device （CCD）C、Light is flashed off a mirror onto the CCDD、Light is reflected off the image and into a camera
考题
单选题A preferred-channel buoy will show a（）.A
white light whose characteristic is Morse (A)B
group-occulting white lightC
composite group-flashing (2 + 1) white lightD
composite group-flashing (2 + 1) red or green light
考题
单选题Two vessels are in an overtaking situation.Which of the lights on the overtaken vessel will the overtaking vessel see（）.A
Two masthead lightsB
One masthead light and a sidelightC
Both sidelightsD
Stern light only
考题
多选题For Question 1, consider each of the choices separately and select all that apply. Which of the following statements about Edison can be inferred from the passage?AEdison was one of the world’s most esteemed and influential inventors.BConcrete furniture was the only one of Edison’s inventions to ultimately fail.CThe light bulb and the phonograph were extremely successful inventions by Edison.
考题
单选题This cargo light is not （）enough. Please change it for a new one.A
lightB
brightC
tightD
dark
考题
单选题Sometimes lights are（）by fog，haze，dust，smoke，or precipitation which may be present at the light，or between the light and the observer，and which is possibly unknown by the observer.A
obscuredB
darkenedC
greyedD
delighted
考题
单选题A head-on situation at night is one in which you see dead ahead a vessel showing（）.A
one sidelightB
one sidelight and a masthead lightC
one sidelight and two masthead lightsD
both sidelights of a vessel and her masthead light(s)
考题
单选题An anchored vessel on pilotage duty must show which light(s) at night? （）A
A sternlight onlyB
Anchor lights onlyC
A white light over a red light onlyD
A white light over a red light and anchor lights
考题
单选题A list signal of one white light indicates that the vessel is （）.A
on an even keelB
listing about 1° to the side the light is displayed onC
listing over 5° With the light displayed on the high sideD
listing，and the chutes should be directed to the side where the light is displayed
考题
单选题An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead?（）A
Masthead lights and sidelightsB
One sidelight，the masthead lights and stern lightC
Both sidelightsD
Stern light
考题
单选题A vessel is overtaking when she can see which light(s) of a vessel ahead?（）A
Only the stern light of the vesselB
One sidelight and a masthead light of the vesselC
Only a sidelight of the vesselD
The masthead lights of the vessel
考题
单选题Which statement concerning Montauk Point Light is TRUE（）.A
The light comes on at sunsetB
There is an emergency light if the main light is extinguishedC
The height of the light is 24 feetD
The tower is painted with black and white stripes
考题
单选题A head-on situation at night is one in which you see（）.A
one sidelight of a vessel ahead of youB
one sidelight and a masthead light of a vessel ahead of youC
one sidelight，a masthead light，and a range light of a vessel ahead of youD
both sidelights of a vessel dead ahead of you
考题
单选题A vessel shall be deemed to be overtaking when she can see at night（）.A
only the sternlight of the vesselB
a sidelight and one masthead light of a vesselC
only a sidelight of the vesselD
any light except the masthead lights of the vessel
热门标签
最新试卷
