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
A relative bearing is always measured from（）.
A
true north
B
magnetic north
C
the vessel's beam
D
the vessel's head
参考答案
参考解析
解析：
暂无解析
更多 “单选题A relative bearing is always measured from（）.A true northB magnetic northC the vessel's beamD the vessel's head” 相关考题
考题
Radar display in which North is always at the top of the screen is a(n)______．A.unstabilized displayB.stabilized displayC.composition displayD.relative display
考题
The bearing of a position shall, according to the SMCP, be in the 360 degrees notation from true north and shall be that of the position ______ the mark.A.TOB.AGAINSTC.FROMD.ON
考题
In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to theA.crossheadB.crankpinC.crank journalD.gudgeon pin
考题
A true bearing of a charted object，when plotted on a chart，will establish a ______.A.fixB.line of positionC.relative bearingD.range
考题
The dangerous semicircle of a hurricane in the Northern Hemisphere is that area of the storm ______.A.to the right of the storm's trackB.measured from true north clockwise to 180°TC.measured from true north counterclockwise to 180°TD.between the ship's heading and the bearing to the eye
考题
The dangerous semicircle of a typhoon in the Southern Hemisphere is that area ______.A.measured from due south clockwise 180°B.measured from due south counterclockwise 180°C.to the left of the storm's trackD.ahead of the typhoon measured from the storm's track to 90°on each side
考题
A compass card without north-seeking capability that is used for relative bearings is a（n）______．A.Bearing circleB.PelorusC.Bearing barD.Alidade
考题
You have calibrated your RDF．When compiling the calibration table，the correction to be applied to any future RDF bearings is listed against the ______．A.true bearing of the transmitterB.relative bearing of the transmitterC.heading of the vesselD.time of reception
考题
单选题A vessel approaching your vessel from 235°relative is in what type of situation?（）.A
MeetingB
OvertakingC
CrossingD
Passing
考题
单选题On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an （）A
dial indicatorB
outside caliperC
bridge gaugeD
tram rod
考题
单选题Bearing knocks are likely to occur from （）.A
less clearanceB
dirty lube oilC
overloadD
bearing wear
考题
单选题You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced? （）A
RelativeB
TRUEC
CompassD
Magnetic
考题
单选题A well-lubricated bearing surface always appears（）A
well knurledB
slightly streakedC
lightly glazedD
highly polished
考题
单选题In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to the （）.A
crossheadB
crankpinC
crank journalD
gudgeon pin
考题
单选题In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a （） in the crankshaft to the bottom end bearing andthen up a connection rod to the gudgeon pin.A
telescopic pipesB
large boreC
drilled passageD
tied rod
考题
单选题Which of the following operating conditions can occur when shims are removed from the joint between the foot of a marine type diesel engine connecting rod and the bearing box?（）A
Decreased connecting rod bearing clearanceB
Increased connecting rod bearing clearanceC
Decreased compression ratioD
Increased compression ratio
考题
单选题It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.A
a traffic accidentB
an acute infectious diseaseC
heart attackD
a three-year cancer
考题
单选题Freeboard is measured from the upper edge of the（）.A
bulkwarkB
deck lineC
gunwale barD
sheer strake
考题
单选题In a pneumatic automation system, a unit producing a signal to govern the position of the controller of the measured variable, relative to the value of the measured variable, is said to have（）.A
reset actionB
proportional actionC
two position actionD
rate action
考题
单选题The load on the crosshead pin is always （）, so it is the （）half of the bearing which is subject to wear.A
upwards；topB
upwards；bottomC
downwards；topD
downwards；bottom
考题
单选题An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes?（）.A
Their bearing is almost constant，even when the true bearing of the contact changes appreciablyB
They always appear on a bearing of 90°from the true bearing of the contactC
The indirect echoes usually appear in shadow sectorsD
When plotted，their movements are usually abnormal
考题
单选题When the bearing becomes dry from lack of oil, the motor shaft may heat to （）an extent （） it welds itself to the bearing.A
either；orB
neither；norC
such；thatD
so；that
考题
单选题The lubber’s line on a magnetic compass indicates（）.A
compass northB
the direction of the vessel's headC
magnetic northD
a relative bearing taken with an azimuth circle
考题
单选题Ullages are measured from（）.A
the tank ceilingB
the tank top bushingC
the thievage markD
an above deck datum
考题
单选题Molded depth is measured from the（）.A
inside of the shellB
outside of the shellC
top of the center vertical keelD
top of the garboard stake
考题
单选题When using the radar for navigating（）.A
the best fix is obtained by using a tangent bearing and a rangeB
and using two radar ranges for a fix，the objects of the ranges should be close to reciprocal bearingsC
and using ranges，the most rapidly changing range should be measured lastD
and crossing a radar range of one object with the visual bearing of a second object，the two objects should be 80°to 110°apart
考题
单选题（）is measured from the baseline to the summer loadline at the midship section.A
Extreme draftB
Molded draftC
Extreme depthD
Molded depth
热门标签
最新试卷