When monitoring diesel engine performance, the most useful instrument to use is the （）

A . Secure all lighting to the main deck B . Provide a portable fan to blow away fumes C . Prohibit smoking in the area D . Display a black triangle during daylight hour

A . radiated through the engine block B . transferred to water cooled cylinder walls C . conducted through the piston crown D . transferred to escaping exhaust gase

A . The diesel oil must never be allowed to mix with the heavy fuel B . The temperature of the fuel from the pre–heater should be gradually reduced after switching over the three–way valve C . The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valve D . The heating steam must be secured before the diesel oil passes through the three-way valve

A . ignition lag B . engine horsepower C . lube oil system pressure D . specific fuel consumptio

A .  The number pages over the limit B .  The pages to paging space per second C .  The number of page operations per second D .  The number of processes waiting for page out

A . the exhaust will be clear B . fuel consumption will be low C . all the fuel will be burned at top dead center D . fuel consumption will be high

A . the chief engineer B . the engineer on cabin watch C . the bridge officer on watch D . the master

A . runs out of fuel B . has low lubricating oil pressure C . exceeds a set maximum speed D . has high cooling water temperature

A . the piston is just coming upward from the bottom dead center B . the piston has moved about one-fifth of the way up C . the piston has moved most of the way up and almost reached the TDC D . the piston has just past the TDC

A . fuel control rack had admitted excessive fuel B . engine speed does not match the fuel rack setting C . engine has failed to reach its firing speed D . starter pinion and ring gear contact is not correct

A . dilutes the lube oil and reduces its viscosity B . forms sulfuric acid in the lube oil C . causes pitting and failure of the bearings D . causes sludge deposits on valve stem

A . keep all systems in normally running B . the main engine is stand-by C . shut off the starting air bottle outlet valve D . pay attention to the changes of the system parameter

A . voip B . rfid tags C . data collection D . 802.11b and g client

A . it gets dark in color B . a sample rubbed between fingers feels thin C . it has been in use for a specified interval D . it no longer supports combustio

A . diametrical tension B . gap clearance C . radial thickness D . face thickne

A . A B . B C . C D . D

A . opposed to the crankshaft rocking couple B . resonant with the crankshaft natural frequency C . critical fore and aft crankshaft vibrations D . horizontal whipping motions of the crankshaft

A . fuel oil vapor at the sludge tank vent B . unburned fuel vapors in the scavenge air receiver C . lube oil vapors in the crank case D . lube oil vapors in the engine room

A . Change the display setting to extend the desktop. B . In the Microsoft Windows Mobility Center window， turn on the Presentation Settings feature.  C . Configure the external monitor as the primary display and the built-in monitor as the secondary display. D . Change the secondary display resolution settings to make them equal to or less than the primary display resolution settings.

A . Lube oil pressure gauge B . Jacket water temperature gauge C . Tachometer D . Exhaust pyrometer

A .  all those that have been created by all users B .  just those created by the user in the current session C .  all those created by the user and shared with user’s login group D .  just those where the connection engine specifies the user’s logo

A . filter to remove the fuel oil B . use the settler to remove the fuel oil C . remove the fuel oil by centrifuging D . drain and then renew the lube oil supply

A .  reptr B .  writer C .  netman D .  monman E .  batchman F .  appservma

A．scarcely gained B．would scarcely gain C．had scarcely gained D．was scarcely gaining