A hand held instrument used to measure distances between objects and the ship is a ______.A.vernierB.psychrometerC.hygrometerD.stadimeter

题目

A hand held instrument used to measure distances between objects and the ship is a ______.

A.vernier

B.psychrometer

C.hygrometer

D.stadimeter

相似考题

1.The term foreign exchange is best defined by the following statement: it is ______.A．the rate of exchange between two currenciesB．synonymous with currency exchangeC．the place in which foreign currencies are exchangedD．an instrument such as paper currency, note, and check used to make payments between countries

2.Radar is not only to obtain ________ ，but also to measure their distances away from you．A.brightness of objectsB.color of targetsC.shape of targetsD.bearings of objects

3.A sling psychrometer is a(n) ______.A.type of cargo gearB.instrument used in celestial navigationC.instrument used to measure relative humidityD.instrument used to measure specific gravity

4.Radar is used not only to look______，but also to measure their distances away from you．A.at obscured objectsB.forward submerged targetsC.up exposed targetsD.for unseen objects

更多“A hand held instrument used to measure distances between objects and the ship is a ______. ”相关问题

  • 第1题：

    An immersion suit should be equipped with a/an ______.

    A.air bottle for breathing

    B.whistle and hand held flare

    C.whistle，strobe light and reflective tape

    D.whistle，hand held flare and sea dye marker


    正确答案：C

  • 第2题：

    A check line is ______．

    A.A safety line attached to a man working over the side

    B.Used to measure water depth

    C.Used to slow the headway of a barge

    D.Used to measure the overhead height of a bridge


    正确答案：C

  • 第3题：

    共用题干
    Scientists working on a problem do not know and sometimes can't even guess what the final result will be.Late on Friday,8 November,1895,Professor Rontgen,a German physicist,was doing an experiment in his laboratory when he noticed something extraordinary.He had covered an electric bulb with black cardboard,and when he switched on the current he saw little dancing lights on his table.Now the bulb was completely covered;_________(46)?On the table there were some pieces of paper which had been covered with metal salts.It was on this paper that the lights were shining. Professor Rontgen took a piece of this paper and held it at a distance from the lamp.Between it and the lamp he placed a variety of objects,a book,a pack of cards,a piece of wood and a door key. __________(47).He called his wife into the laboratory and asked her to hold her hand between the lamp and a photographic plate._________(48),but she held up her hand for a quarter of an hour, and when the plate was developed there was a picture of the bones of her hand and of the ring on one finger. The mysterious ray could pass through the flesh and not through the bone or the ring.
    At a scientific meeting,Professor Rontegen called this new ray "the unknown" the X-ray. _________(49),and soon there were X-ray machines in all the big hospitals.The most obvious use for this discovery was to enable doctors to see exactly how a bone was fractured._________(50).It was found that these rays could be used to destroy cancer cells,just as they destroyed the healthy cells of the doctors who first used the machines.Methods were found later by which ulcers in the stomach could be located,and the lungs could be X-rayed to show if there was any tuberculosis present.

    _______（49）
    A:The ray penetrated every one of them except the key
    B:She was very surprised by this request
    C:how then could any ray penetrate
    D:It was a great invention
    E:Other uses came later
    F: Doctors quickly saw how this could be used

    答案：F
    解析：
    前一句及该句意为：现在的灯泡被完全覆盖；怎么会有射线穿透呢？
    前一句“在纸和灯之间，他放置了各种不同的物体，一本书、一包卡片、一块木头和一把门钥匙”是实验的步骤方法，该句“射线穿透了除钥匙以外的每一件物体”是实验的结果。
    该句中this request指代前一句“He called his wife into the laboratory and asked her to hold her hand between the lamp and a photographic plate."
    该句的意思是：医生很快知道该如何运用它，不久X光机出现在所有的大医院里。
    “其他用途随后出现”是承上启下句。前一句为“The most obvious use for this discovery was to enable doctors to see exactly how a bone was fractured"，该句后面细述它的用途。

  • 第4题：

    单选题
    An ohmmeter can be used to measure（）
    A

    current flow in a circuit

    B

    voltage between two points in a circuit

    C

    circuit continuity

    D

    power


    正确答案： B
    解析： 暂无解析

  • 第5题：

    单选题
    An ammeter should be used to measure （）
    A

    the voltage between two points in a circuit

    B

    circuit continuity

    C

    current flow in a circuit

    D

    total or partial circuit resistance


    正确答案： B
    解析： 暂无解析

  • 第6题：

    单选题
    An aneroid barometer is an instrument（）.
    A

    used to measure the speed of wind

    B

    in which the pressure of the air is measured

    C

    that tells which direction a storm is coming from

    D

    used to measure the height of waves


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    Radar is used to not only to look（）,but also to measure their distances away from you.
    A

    at obscured objects

    B

    forward submerged targets

    C

    up exposed targets

    D

    for unseen objects


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    A hand held instrument used to measure distances between objects and the ship is a（）.
    A

    vernier

    B

    psychrometer

    C

    hygrometer

    D

    stadimeter


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    Which item of lifeboat equipment would be most suitable for night signaling to a ship on the horizon?（）
    A

    A red parachute flare

    B

    A red hand-held flare

    C

    A flashlight

    D

    A lantern


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    A sling psychrometer is a(n)（）.
    A

    type of cargo gear

    B

    instrument used in celestial navigation

    C

    instrument used to measure relative humidity

    D

    instrument used to measure specific gravity


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    A carling is used aboard ship（）.
    A

    as a connecting strap between the butted ends of plating

    B

    to stiffen areas under points of great stress between beams

    C

    to prevent the anchor from fouling when the brake is released

    D

    to provide an extra heavy fitting in a lift cargo released


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    （）provides a selection of commonly used routes with their distances between principal and important positions.
    A

    The Mariner‟s Handbook

    B

    Admiralty Sailing Directions

    C

    Ocean Passages for the World

    D

    Mariner‟s Routeing Guide


    正确答案： C
    解析： 暂无解析

  • 第13题：

    If you must jump from a ship，your posture should include ______．

    A.holding down the life preserver against the chest with one arm crossing the other，covering the mouth and nose with a hand，and feet together

    B.knees bent and held close to the body with both arms around legs

    C.body straight and arms held tightly at the sides for feet first entry into the water

    D.both hands holding the life preserver below the chin，with knees bent，and legs crossed


    正确答案：A

  • 第14题：

    An aneroid barometer is an instrument ______.

    A.used to measure the speed of wind

    B.in which the pressure of air is measured

    C.that tells which direction a storm is coming from

    D.used to measure the height of waves


    正确答案：B
    无液[空盒]气压表是测量空气压力的一种仪器。

  • 第15题：

    单选题
    If you must jump from a ship，your posture should include（）.
    A

    holding down the life preserver against the chest with one arm crossing the other，covering the mouth and nose with a hand，and feet together

    B

    knees bent and held close to the body with both arms around legs

    C

    body straight and arms held tightly at the sides for feet first entry into the water

    D

    both hands holding the life preserver below the chin，with knees bent，and legs crossed


    正确答案： B
    解析： 暂无解析

  • 第16题：

    单选题
    A carling is used aboard ship（）.
    A

    as a connecting strap between the butted ends of plating

    B

    to stiffen areas under points of great stress between beams

    C

    to prevent the anchor from fouling when the brake is released

    D

    to provide an extra heavy fitting in a heavy lift cargo rig


    正确答案： A
    解析： 暂无解析

  • 第17题：

    单选题
    The vertical distance between G and M is used as a measure of（）.
    A

    stability at all angles of inclination

    B

    initial stability

    C

    stability at angles less than the limit of positive stability

    D

    stability at angles less than the downflooding angle


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    A pyrometer is an instrument commonly used to measure（）
    A

    cylinder pressure

    B

    flame intensity

    C

    exhaust gas temperature

    D

    crankshaft axial alignment


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    Which instrument is used to measure the relative humidity of air?（）
    A

    Hydrometer

    B

    Hygrometer

    C

    Spectrometer

    D

    Barometer


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    An immersion suit should be equipped with a/an（）.
    A

    air bottle for breathing

    B

    whistle and hand held flare

    C

    whistle，strobe light and reflective tape

    D

    whistle，hand held flare and sea dye marker


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    The most common instrument used to measure diesel engine exhaust pressure is the （）
    A

    pyrometer

    B

    bourdon gauge

    C

    pneumercator

    D

    manometer


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    On chart，bearings to near objects should be used in preference to objects farther off，because（）.
    A

    a small error in bearing or in laying it down on the chart has a greater effect in misplacing the position the longer the line to be drawn

    B

    all scales are kept updated for vital information by Notices to Mariners

    C

    the larger the scale of the chart，the greater the detail that can be shown on it

    D

    the mariner using the medium scale charts for passage along a coast need not transfer on to a large scale for short distances


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    Buoyancy is a measure of the ship’s（）.
    A

    ability to float

    B

    deadweight

    C

    freeboard

    D

    midships strength


    正确答案： D
    解析： 暂无解析

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