单选题How is the intensity of a light expressed in the Light Lists?（）.ALuminous rangeBGeographic rangeCNominal rangeDMeteorological range
单选题
How is the intensity of a light expressed in the Light Lists?（）.
A
Luminous range
B
Geographic range
C
Nominal range
D
Meteorological range
参考解析
解析：
暂无解析
相关考题：
How many life buoys________on board with self-igniting light?A.there existB.there isC.there areD.are there
A light used to signal passing intentions must be an ______.A.all-round yellow light onlyB.all-round white light onlyC.all-round blue light onlyD.alternating red and yellow light
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
Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of ______.A.marine broadcast Notice to MarinersB.Weekly Notices to MarinersC.corrected editions of chartsD.Light Lists
A vessel trawling will display a ______.A.red light over a white lightB.green light over a white lightC.yellow light over a red lightD.white light over a green light
How would the exhaust of a properly operating diesel engine appear ________．A.Light blue hazeB.Light brown hazeC.Light gray hazeD.Perfectly clear
How is the intensity of a light expressed in the Light Lists?______.A.Luminous rangeB.Geographic rangeC.Nominal rangeD.Meteorological range
The question "How fast did he drive when he ran the red light?" __________ "He ran the red light".A．presupposesB．entailsC．contradictsD．includes
共用题干Learn about Light1 .Ancient civilizations were amazed by the existence of light for thousands of years. The Greek philosophers believed that light was made up of countless,tiny particles that enter the human eye and create what we call vision. However,Empedocles and a Dutch scientist named Christian Huygens believed that light was like a wave. According to them,light spread out and travelled like a straight line. This theory was accepted during the 19th century.2 .In 1905,Albert Einstein published a research paper in which he explained what is re-ferred to as the photoelectric effect. This theory explains that particles make up light.The particles Einstein was referring to are weightless bundles（束）of electromagnetic（电磁）energy called photons（光子）.Today,scientists agree that light has a dual（二重）nature一it is part particle and part wave. It is a form of energy that allows us to see things around us.3 .Things that give off light are known as sources of light. During the day,the primary source of light is the sun. Other sources of light include stars,flames,flashlights,street lamps and glowing gases in glass tube.4 .When we draw the way light travels we always use straight lines. This is because nor-mally light rays travel in a straight line. However,there are some instances that can change the path and even the nature of light. They are reflection,absorption,interference（干扰）, etc.5 .Physicists have attempted to measure the speed of light since the early times. In 1849, Hippolyte Fizeau conducted an experiment by directing a beam of light to a mirror located kilometers away and placed a rotating cogwheel（旋转齿轮）between the beam and the mirror. From the rate of rotation of the wheel,number of wheel's teeth and distance of the mirror,he was able to calculate that the speed of light is 313 million meters per second. In a vacuum（真空）,however,the speed of light is 299,792,458 meters per second. This is about a million times faster than the speed of an airplane.Paragraph 5______A: How Is the Nature of Light Explained Today?B: What Are Sources of Light?C: How Did Physicists Measure the Speed of Light?D: How Does Light Travel?E: How Did People Think of Light Years Ago?F: What Causes a Shadow?
产生彩色投影必须调整下面哪个参数（）A、light的light transmission设为100%B、light的light transmission设为0%C、投影层的阴影层的light transmission设为80%D、接受阴影层的light transmission设为100%
单选题The color of the exhaust from a diesel engine should be （）AclearBhazy light brownChazy light blueDhazy light grey
单选题（）are located on the road panel of main switchboard.AMegohm meter, insulation light and synchroscopeBSynchroscope, synchro light and megohm meterCShore power switch, insulation light and synchroscopeDMegohm meter, insulation light and shore power switch
单选题A buoy marking a wreck will show a(n)（）.Awhite light FL (2) and a topmark of 2 black spheresBocculting green light and may be letteredCyellow light and will be numberedDcontinuous quick white light and may be numbered
单选题An anchored vessel on pilotage duty must show which light(s) at night? （）AA sternlight onlyBAnchor lights onlyCA white light over a red light onlyDA white light over a red light and anchor lights
单选题A vessel trawling will display a（）.Ared light over a white lightBgreen light over a white lightCyellow light over a red lightDwhite light over a green light
单选题A hollow-cathode lamp is（）AA broad-band light sourceBA narrow-band light sourceCA light detectorDNot a light source
单选题打开锚灯！ （）ASwitch on the deck light!BSwitch on the anchor light!CSwitch on the cargo light!DSwitch on the hold light!
单选题Which statement concerning Montauk Point Light is TRUE（）.AThe light comes on at sunsetBThere is an emergency light if the main light is extinguishedCThe height of the light is 24 feetDThe tower is painted with black and white stripes
单选题How many life buoys（）on board with self-igniting light?Athere existBthere isCthere areDare there
单选题Light Lists for coastal waters are（）.Apublished every year and require no correctionsBpublished every second year and must be correctedCpublished every five years and require no correctionDaccurate thru NM number on title page and must be corrected
单选题An alternating light（）.Ashows a light with varying lengths of the lighted periodBshows a light that changes colorCmarks an alternate lesser-used channelDis used as a replacement for another light
单选题Why does the speaker ask us to consider “turning off a light switch”?ATo show that the climate system is sensitive to light.BTo illustrate the sudden move from one climate state to another.CTo demonstrate how to operate the light switch.DTo explain how the operating mode works under increasing pressure.
单选题When making landfall at night，you can determine if a light is a major light or an offshore buoy by（）.Athe intensity of the lightBchecking the period and characteristics against the Light ListCthe color，because the buoy will have only a red or a green lightDAny of the above can be used to identify the light
单选题A towing light is（）.Ashown below the sternlightBwhite in colorCdisplayed at the mastheadDa yellow light having the same characteristics as the stern light