[单项选择]Snow has obliterated surface features and the sky is covered with uniform，altostratus clouds. There are no shadows and the horizon has disappeared. What is this condition called? （）
A. Ice blink
B. Whiteout
C. Water sky
D. Aurora reflection

[名词解释]面蚀 surface erosion

[单项选择]Grinding to eliminate shallow surface defects should be done（）.
A. parallel to the longitudinal direction of the chain
B. perpendicular to the direction of the anchor chain
C. diagonally across the link of the anchor chain
D. around the circumference of the chain link

[单项选择]The distance between the surface of the water and the tidal datum is the （）.
A. range of tide
B. height of tide
C. charted depth
D. actual water depth

[单项选择]Your vessel has just finished bunkering and has a small list due to improper distribution of the fuel oil. This list will cause（）.
A. a decrease in reserve buoyancy
B. a decrease in the maximum draft
C. the vessel to flop to port or starboard
D. None of the above

[单项选择]The direction of the surface wind is（）.
A. directly from high pressure toward low pressure
B. directly from low pressure toward high pressure
C. from high pressure toward low pressure deflected by the earth's rotation
D. from low pressure toward high pressure deflected by the earth's rotation

[单项选择]Abnormal crankpin bearing and piston skirt surface wear indicate（）
A. a restricted air intake
B. a clogged connecting rod oil passage
C. incorrect connecting rod alignment
D. high cylinder firing temperatures

[多项选择]Your company has a network that has an Active Directory domain. The domain has two servers named DC1 and DC2.You plan to collect events from DC2 and transfer them to DC1. You configure the required subscriptions by selecting the Normal option for the Event delivery optimization setting and by using the HTTP protocol.You discover that none of the subscriptions work.You need to ensure that the servers support the event collectors.Which three actions should you perform？（）
A. Run the wecutil qc command on DC1.
B. Run the wecutil qc command on DC2.
C. Run the winrm quickconfig command on DC1.
D. Run the winrm quickconfig command on DC2.
E. Add the DC2 account to the Administrators group on DC1.
F. Add the DC1 account to the Administrators group on DC2.

[单项选择] Your company has a network that has 100 servers. A server named Server1 is configured as a file server. Server1 is connected to a SAN and has 15 logical drives. You want to automatically run a data archiving script if the free space on any of the logical drives is below 30 percent. You need to automate the script execution. You create a new Data Collector Set. What should you do next?（）
A. Add the Event trace data collector.
B. Add the Performance counter alert. 
C. Add the Performance counter data collector. 
D. Add the System configuration information data collector.

[单项选择]A（）is the intersection of the surface of a sphere and a plane passing through the center of the sphere.
A. great circle
B. small circle
C. large circle
D. general circle

[单项选择]A plane that cuts the Earth’s surface and passes through the poles will always form（）.
A. the equator
B. a loxodromic curve
C. a small circle
D. a meridian

[单项选择]The Coordinator Surface Search in a SAR situation should display by day（）.
A. the code flags FR
B. a black ball over a black diamond shape
C. code flag Quebec over a black ball
D. two black diamond shapes in a vertical line

[单项选择]Which of the listed cylinder liner surface conditions indicates proper lubrication?（）
A. Dull black appearance
B. Bright appearance
C. Thin layer of lacquer
D. Thick oily film

[单项选择]The correction to KG for longitudinal free surface effects for a vessel can be found by dividing the vessel’s displacement into the（）.
A. transverse free surface correction for the vessel
B. sum of the vertical moments of the vessel
C. sum of the longitudinal free surface moments of the vessel
D. longitudinal centerline of the vessel

[单项选择]Surface irregularities, such as erosion and pitting on injection pump plungers, will（）
A. increase ignition delay
B. affect fuel oil metering
C. affect engine performance at low speed
D. only disappear due to fuel oil abrasion

[单项选择]Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and （） in size.
A. expand
B. extract
C. increase
D. decrease

[单项选择]In the combustion chamber, the part whose surface is exposed to the highest temperature is the （）.
A. cylinder liner
B. cylinder cover
C. piston
D. exhaust valve

[单项选择]Impurities from the boiler water surface can be removed through the （）.
A. safety valve
B. blow down valve
C. scum valve
D. feed check valve

[单项选择]Small crack in the crankshaft bearing surface of a diesel engine are an indication of（）
A. corrosion fretting
B. insufficient lubrication
C. abnormal wear
D. fatigue failure