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
磁罗经在磁极附近不能指北,是因为此时地磁()。
A
垂直分力较强
B
垂直分力等于零
C
水平分力较强
D
水平分力约为零
参考答案
参考解析
解析:
暂无解析
更多 “单选题磁罗经在磁极附近不能指北,是因为此时地磁()。A 垂直分力较强B 垂直分力等于零C 水平分力较强D 水平分力约为零” 相关考题
考题
单选题The term "oil", as used in the Pollution Prevention Regulations, means ().A
fuel oil onlyB
crude oil onlyC
liquefied petroleum gasD
petroleum oil of any kind
考题
单选题The external circumference of a pair of main bearing shells is slightly () that of the bore of the housing which receives themWhat’s the meaning of “that” in the sentence above?A
less thanB
lighter thanC
larger thanD
smaller than
考题
单选题Which of the following statements concerning cargo is correct?()A
Cargoes are any type of goods transported by any type of shipsB
Cargoes are goods transported in bulkC
Cargoes usually include goods transported in bulk and in containersD
Cargoes are usually packaged in containers
考题
单选题海岸电台的MF/HF/VHF的电话业务可在那一卷()无线电信号书中查找。A
MARITIME RADIO STATIONB
GLOBAL MARITIME DISTRESS AND SAFETY SYSYTEMC
MATITIEM SAFETY INFORMATION SERVICESD
LIST OF RADIO SIGNALS
考题
单选题To prevent damage by and to storage batteries aboardsmall passenger vessels they should be located().A
in trays constructed of material that is resistant to the electrolyteB
so as to prevent movement when the vessel pitches and rollsC
in a well ventilated areaD
All of the above
考题
单选题Modern marine diesel engines using mechanical fuel injection, operate on a combustion cycle which is()A
a combination of constant volume and constant pressureB
a combination of constant temperature and constant pressureC
entirely constant pressureD
entirely constant volume
考题
单选题The air supplied to a diesel engine is compressed to () (1) provide heat for the ignition of the fuel (2) decrease injection delayA
(1) only is correctB
(2) only is correctC
both (1) and (2) are correctD
neither (1) or (2) are correct
考题
单选题A bilge suction line,in a fishing vessel with more than 16 individuals aboard,must have a strainer with an open area not less than how many times the open area of the suction line?()A
oneB
twoC
threeD
four
考题
单选题A vertical shift of weight to a position above the vessel’s center of gravity will().A
increase reserve buoyancyB
decrease the righting momentsC
decrease KGD
increase KM
考题
单选题某船从密度为ρ1=1.021g/cm3的水域驶入密度为ρ2=1.003g/cm3的水域,船舶排水量Δ=64582t,每厘米吃水吨数TPC=54.41t/cm,则船舶平均吃水改变量δdρ=()cm。A
20.6B
19.9C
22.1D
21.4
考题
单选题以下应转换成人工操舵的情况有()。 ①雾航时; ②大风浪中航行时; ③狭水道中航行时; ④渔区、礁区等复杂水域中航行时。A
②~④B
①~③C
①③④D
①~④
热门标签
最新试卷