Lines drawn through points on the Earth having the same atmospheric pressure are known as ___________.A.isothermalB.millibarsC.isobarsD.Seismics
Lines drawn through points on the Earth having the same atmospheric pressure are known as ___________.
A.isothermal
B.millibars
C.isobars
D.Seismics
相关考题：
________ is a device used to measure atmospheric pressure．A.BarometerB.ThermometerC.ChronometerD.Speedometer
Isogonic lines are lines on a chart indicating ______.A.points of equal variationB.points of zero variationC.the magnetic latitudeD.magnetic dip
Lines on a chart which connect points of equal magnetic variation are called ______.A.magnetic latitudesB.magnetic declinationsC.dipD.isogonic lines
Cargo pump relief valves are piped to the ______．A.cargo pump pressure gaugesB.crossover lines interconnecting two pumpsC.suction side of pumpsD.atmosphere through pump vents
What is the purpose of pressure-vacuum relief valves ________．A.Regulation of discharge pressure from cargo pumpsB.Maintaining constant velocity in cargo linesC.Regulation of suction head on cargo pumpsD.To maintain a tank or void at atmospheric pressure
A microbarograph is a precision instrument that provides a ______．A.charted record of atmospheric temperature over timeB.charted record of atmospheric pressure over timeC.graphic record of combustible gases measured in an atmosphereD.graphic record of vapor pressure from a flammable/combustible liquid
Generally speaking, you should expect to find low atmospheric pressure prevailing in the earth’s ______.A.equatorial areaB.polar regionsC.mid-latitudesD.All of the above
If two mooring lines are to be placed on the same bollard，which method is BEST?______.A.Place the eye from the forward line on the bollard and then place the eye from the second line directly over the firstB.It makes no difference how the lines are placedC.Place the eye from either line on the bollard，and then bring the eye of the other line up through the eye of the first，and place it on the bollardD.Place both eyes on the bollard，in any manner，but lead both lines to the same winch head on the vessel and secure them on the winch
When conducting an Assisted Site Survey， the WLSE does which of the following during the Radio Scan process？（）A、chooses the least congested channelB、uses the configured channelC、sets all access points to the same channelD、steps through each of the allowed channels
单选题What is the purpose of pressure-vacuum relief valves? （）ARegulation of discharge pressure from cargo pumpsBMaintaining constant velocity in cargo linesCRegulation of suction head on cargo pumpsDTo maintain a tank or void at atmospheric pressure
单选题Cargo pump relief valves are piped to the（）.Acargo pump pressure gaugesBcrossover lines interconnecting two pumpsCsuction side of pumpsDatmosphere through pump vents
单选题Generally speaking，you should expect to find low atmospheric pressure prevailing in the earth’s（）.Aequatorial areaBpolar regionsCmid-latitudesDAll of the above
单选题Freon 12 which is used to produce intense cold is normally a （） when at atmospheric pressure and temperature.AliquidBgasCsolidDwater only
单选题Lines on a chart which connect points of equal magnetic variation are called （）.Amagnetic latitudesBmagnetic declinationsCdipDisogonic lines
单选题A microbarograph is a precision instrument that provides a（）.Acharted record of atmospheric temperature over timeBcharted record of atmospheric pressure over timeCgraphic record of combustible gases measured in an atmosphereDgraphic record of vapor pressure from a flammable/combustible liquid
单选题As observed from the Earth，the angle between lines from the Earth to the Sun and the Earth to an inferior planet is known as（）.AelongationBconjunctionCoppositionDquadrature
单选题Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.AIsothermalBMillibarsCIsobarsDSeismics
单选题The direction of the surface wind is（）.Adirectly from high pressure toward low pressureBdirectly from low pressure toward high pressureCfrom high pressure toward low pressure deflected by the earth's rotationDfrom low pressure toward high pressure deflected by the earth's rotation
单选题A turbocharged diesel engine will have an intake manifold pressure（）Aconstantly decreasing as engine load increaseBconstantly increasing as the amount of supercharging increasesCapproximately equal to exhaust manifold pressure at all timesDapproximately equal to atmospheric pressure at all times
单选题Low pressure air is usually taken through （） or pressure regulators to a low pressure reservoir supplying a ring main through driers.Aglobe valvesBbutterfly valvesCgate valvesDreducing valves
单选题On the pole side of the high pressure belt in each hemisphere，the pressure diminishes. The winds along these gradients are diverted by the Earth’s rotation toward the east and are known as the（）.Ageostrophic windsBdoldrumsChorse latitudesDprevailing westerlies
单选题If two mooring lines are to be placed on the same bollard，which method is BEST?（）.APlace the eye from the forward line on the bollard and then place the eye from the second line directly over the firstBIt makes no difference how the lines are placedCPlace the eye from either line on the bollard，and then bring the eye of the other line up through the eye of the first，and place it on the bollardDPlace both eyes on the bollard，in any manner，but lead both lines to the same winch head on the vessel and secure them on the winch
单选题What is the basic principle of the magnetic compass（）.AMagnetic materials of the same polarity repel each other and those of opposite polarity attractBThe Earth's magnetic lines of force are parallel to the surface of the EarthCMagnetic meridians connect points of equal magnetic variationDThe compass needle（s）will，when properly compensated，lie parallel to the isogonic lines of the Earth
单选题In which voyage, between two points, is the rhumb line distance not approximately the same as the great circle distance?（）.AThe two points are in low latitudes in the same hemisphereBThe two points are in high latitudes in the same hemisphereCThe two points are near the equator, but in different hemispheresDOne point is near the equator, one point is in a high latitude, and both are near the 180th meridian
单选题Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）APut one line at the low point and one at the high point of the bollard so they don't touchBTake the eye of the second line up through the eye of the first line before putting the second line on the bollardCNever put two mooring lines on the same bollardDThe mooring line forward should be put on the bollard first
单选题An instrument designed to maintain a continuous record of atmospheric pressure is a(n)（）.Amercurial barometerBaneroid barometerCbarographDthermograph