An oxygen indicator can be used to determine if there is（）.

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• An indication of a diesel engine air intake being partially clogged, is （）.

  A . low firing pressure and low exhaust temperatures B . low firing pressure and normal exhaust temperatures C . high firing pressure and low exhaust temperatures D . high firing pressure and high exhaust temperature

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• A substantial increase in crankcase pressure could be an indication of （）

  A . excessive lube oil pressure B . the proper seating of new rings C . a worn cylinder liner D . a malfunctioning cylinder relief valve

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• After each reading of an oxygen indicator, the instrument should be purged with（）.

  A . CO B . fresh air C . the tested compartment's air D . water

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• The maximum draft to which a vessel can legally be submerged is indicated by the （）.

  A . Loadline mark B . Certificate of Inspection C . Station Bill D . Tonnage mark

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• A combination combustible gas and oxygen indicator is an instrument that measures the（） of both combustible gas and oxygen; each is indicated on a separate meter.

  A . purifies B . combinations C . concentrations D . filter

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• GM cannot be used as an indicator of stability at all angles of inclination because（）.

  A . M is not fixed at large angles B . there is no M at large angles C . G is not fixed at large angles D . there is no G at large angle

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• Which of the following can be directly obtained by means of an indicator card?（）

  A . power B . maximum pressure in a cylinder C . mean pressure in a cylinder D . all of the above

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• Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an（）.

  A . Orsat apparatus B . flame safety lamp C . Halide torch D . combustible gas indicator

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• If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.

  A . at each control station B . in the chief engineer’s quarters C . in the captains quarters D . All of the above are correct

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• Each liferaft，which does not have an indicated maximum stowage height indicated on the liferaft，must be（）.

  A . limited to carry no more than 10 persons B . stowed not more than 59 feet above the lightest waterline C . stowed in quick release racks D . inspected every six month

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• When should the emergency position-indicating radio beacon be activated after abandoning an OSV?（）

  A . Immediately B . After one hour C . Only when another vessel is in sight D . Only after sunset

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• SOLAS regulations require that the inert gas system shall be capable of delivering inert gas with an oxygen content of not more than what percentage?（）

  A . 5% B . 8% C . 6% D . 3%

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• What can be used to measure the percentage of oxygen inside a chain locker?（）

  A . Flame safety lamp B . Combustible gas indicator C . Oxygen indicator D . H S meter

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• Black smoke exhausting from an operating diesel engine is an indication of poor combustion which may be caused by （）

  A . water in the fuel B . insufficient fuel for combustion C . clogged air intake passages D . burning lubricating oil

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• The indicated power of an engine can be obtained by taking the （）.

  A . precautions B . rpm C . indicator cards D . B and C

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• Which of the following can be obtained by means of an indicator card?（）

  A . the peak pressure in a cylinder B . the temperature of the cooling water C . the fuel consumption D . none of the above

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• Sparking at the brushes of a running motor could be an indication of （）.

  A . normal operation B . a dirty commutator C . increased brush capacity D . water vapor absorptio

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• A sudden decrease in the diesel engine lube oil viscosity could be an indication of（）

  A . loss of additives from the lube oil B . carbon deposits in the lube oil C . excessive centrifuging D . excessive fuel dilutio

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• Each inert gas system must be designed to supply the cargo tanks with a gas，or mixture of gasses，that has an oxygen content by volume of（）.

  A . 5% or less B . 10% or less C . 15% or less D . 20% or le

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• （） power is the power developed within the cylinder and can be measured by an engine indicator.

  A . The shaft B . The mechanical C . The electric D . The indicated

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• Each air carrier flight cdck aorwmember on flight deck duty must be provided with an oxygen mask that can be rapidly placed on his face when operating at flight altitudes

  A．of FL 260. B．of FL 250. C．Above FL 250.

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• A solution of which substance can best be used as both a titrant and its own indicator in an oxidation-reduction titration？

  (a) I₂(b) NaOCl (c) K₂Cr₂O₇(d) KMnO₄

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• What can be indicated from the letter？

  A．Mr. Smith must be a installation engineer. B．It is October 15th when Nancy writes the letter. C．Ms. Webster wants to cancel her order on October 30th. D．Nancy Webster could be a resident in Auckland.

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• Passage Two：Questions 16 to 20 are based on the following passage.Sport is not only physically challenging, but it can also be mentally challenging. Criticism from coaches, parents, and other teammates, as well as pressure to win can create an excessive amount of anxiety or stress for young athletes (运动员). Stress can be physical, emotional, or psychological, and research has indicated that it can lead to burnout. Burnout has been described as dropping or quitting of an activity that was at one time enjoyable.

  The early years of development are critical years for learning abut oneself. The sport setting is one where valuable experiences can take place. Young athletes can, for example, learn how to cooperate with others, make friends, and gain other social skills that will be used throughout their lives. Coaches and parents should be aware, at all times, that their feedback to youngsters can greatly affect their children. Youngsters may take their parents’ and coaches’ criticisms to heart and find a flaw (缺陷) in themselves. Coaches and parents should also be cautious that youth sport participation does not become work for children. The outcome of the game should not be more important than the process of learning the sport and other life lessons. In today’s youth sport setting, young athletes may be worrying more about who will win instead of enjoying themselves and the sport. Following a game, many parents and coaches focus on the outcome and find fault with youngsters’ performances. Positive reinforcement should be provided regardless of the outcome. Research indicates that positive reinforcement motivates and has a greater effect on learning than criticism. Again, criticism can create high levels of stress, which can lead to burnout. 第16题：An effective way to prevent the burnout of young athletes is ________. A) to make sports less competitive B) to make sports more challenging C) to reduce their mental stress D) to increase their sense of success

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