更多"The period at high or low tide duri"的相关试题:
[单项选择]Valve overlap is the period during which （）.
A. the inlet valve is open
B. the exhaust valve is open
C. both valves are closed
D. both valves are open
[单项选择]Where a period is fixed during which freight is to be paid，the Shipowner must（）to deliver the goods throughout the whole of that period if he wishes to claim payment.
A. be had
B. be made
C. be prepared
D. be delivered
[单项选择]Which statement is TRUE concerning equatorial tides（）.
A. They occur when the Sun is at minimum declination north or south
B. They occur when the Moon is at maximum declination north or south
C. The difference in height between consecutive high or low tides is at a minimum
D. They are used as the basis for the vulgar establishment of the port
[单项选择]The datum from which the predicted heights of tides are reckoned in the tide tables is（）.
A. mean low water
B. the same as that used for the charts of the locality
C. the highest possible level
D. given in table three of the tide tables
[单项选择]风挡排雨系统风挡雨刷的工作由P5板底部的三位旋钮(HIGH,LOW,OFF)控制：（）
A. HIGH位马达线圈串联, LOW位马达线圈并联，OFF位马达反转到停留位后断电
B. HIGH位马达线圈并联, LOW位马达线圈串联，OFF位马达反转到停留位后断电
C. HIGH位马达线圈并联, LOW位马达线圈串联，OFF位马达正转到停留位后断电
D. HIGH位马达线圈串联, LOW位马达线圈并联，OFF位马达正转到停留位后断电
[单项选择]High pressure and low pressure alarms must be tested（）.
A. no earlier than 24 hours prior to loading
B. no later than 24 hours prior to loading
C. anytime prior to loading
D. weekly
[单项选择]The rate of pressure rise during the period following fuel ignition in a diesel will result in （）
A. valve overlap
B. volumetric efficiency
C. turbulence of the air change
D. fuel efficiency
[单项选择]During the valve overlap period, the exhaust pressure of a turbochargers, four-stroke/cycle diesel engine must be less than the intake manifold pressure to ensure （）
A. effective cylinder scavenging and cooling
B. constant pressure from the turbochargers
C. cooler operation of the exhaust system
D. effective constant pressure for turbocharger operation
[单项选择]During the fuel injection period, fuel pressure must exceed cylinder gas pressure to （）.
A. ensure penetration and distribution of the fuel in the combustion chamber
B. ensure the needle valve is flushed clean during each injection
C. prevent combustion gas blowback into the open needle valve
D. prevent reflected pressure waves when the needle valve closes
[单项选择]During a period of whiteout，you should expect which of the following（）.
A. Snowfall or blowing snow
B. Lack of ability to estimate distance
C. Harsh contrast between sun-illuminated snow cover and the background
D. Hazy horizons with extensive mirage effects
[单项选择]According to Sinotime，during the period of this Charter，should the Vessel be requisitioned by the government of the Vessel’s nationality，hire to（）from the time of her requisition.
A. continue
B. stop
C. commence
D. cease
[单项选择]During a period of “whiteout”，you should expect which of the following?（）
A. Snowfall or blowing snow
B. Lack of ability to estimate distance
C. Harsh contrast between sun-illuminated snow cover and the background
D. Hazy horizons with extensive mirage effects
[单项选择]Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.
A. Foam should not be used on electrical fires
B. One kilo of low expansion foam solution produces much more foam
C. Foam is only efficient when it covers the top of burning combustibles
D. A stream of foam should be deflected off the deck in order to best agitate the fire
[单项选择]High firing pressures and a low exhaust temperature in a diesel engine may result from （）.
A. decreased piston to cylinder head clearance
B. increased exhaust system back pressure
C. early fuel injection timing
D. low scavenge air temperature
[单项选择]The tide（）.It’s 2 hours before low water, and（）your present position you will be aground at low water.
A. falls/in
B. has been falling/on
C. has fallen/at
D. is falling/in
[单项选择]The tide（）.It’s 2 hours before low water，and（）your present position you will be aground at low water.
A. falls／in
B. has been falling／on
C. has fallen／at
D. is falling／in
[单项选择]During a（）period, as a newly commissioned SES, your IMN will be past to the other CESs.
A. 20 hour
B. 12 hour
C. 24 minute
D. 24 hour
[单项选择]What separate the high pressure side from the low pressure side in a refrigeration system?（）
A. Condenser and thermal expansion valve
B. King and solenoid valves
C. Compressor and thermal expansion valve
D. Condenser and solenoid valve
[单项选择]Low cylinder compression pressure and a high exhaust temperature may indicate （）
A. early fuel injection timing
B. leaking valves
C. a continuously open scavenge air port
D. low cooling water temperature
