Defense plans may cause the operation of electronic aids to navigation to be suspended with （）.

相似题目

• 如果汇票上付款期限是：At 90 days from 20th May该汇票的付款到期日是（）。

  A . 17 Aug B . 18 Aug C . 19 Aug

  查看最佳答案

• Waterside scale in a fire-tube boiler may cause （）.

  A . increased heat transfer B . fireside erosion C . high steam demand D . overheated tube

  查看最佳答案

• A virtual rise in the center of gravity may be caused by（）.

  A . filling a partially filled tank B . using an on board crane to lift a freely swinging heavy object C . emptying a partially filled tank D . transferring ballast from the forepeak to the after peak

  查看最佳答案

• In a refrigeration system, foaming of the crankcase oil may cause the （）.

  A . expansion valve to overfeed B . compressor to knock C . water regulating valve to fail D . crankcase drains to plug

  查看最佳答案

• The reciprocating pump can’t draw water from a tank may be caused by （）.

  A . leaky pipe B . opened inlet valve C . too much water in tank D . None of the above

  查看最佳答案

• In the common rail system, excessive pressure in the header may be caused by （）

  A . improper adjustment of the bypass valve B . a dribble in the fuel injection nozzle C . insufficient leak-off through injection nozzle packing D . a malfunctioning injection nozzle

  查看最佳答案

• Electrical failures in motors are caused by the breakdown of insulation, which may be caused by （）

  A . penetration of moisture B . accumulation of dirt C . overheating D . All of the above

  查看最佳答案

• If the refrigeration compressor crankcase is sweating, the cause may be due to （）.

  A . a shortage of refrigerant B . the compressor running continuously C . liquid refrigerant returning to the compressor D . the compressor short cycling on the high pressure cutout

  查看最佳答案

• May I have a copy of the cargo plan?Certainly，here（）.

  A . is it B . are you C . they are D . you are

  查看最佳答案

• If an auxiliary diesel engine frequently stalls, the trouble may be caused by （）

  A . low exhaust back pressure B . air in the fuel system C . gasket blow-by or leakage D . incorrect assembly of idler spring

  查看最佳答案

• Excessive vibration in an operating diesel generator may be caused by （）

  A . electrical overload B . surging at governed RPM C . loose engine mounting bolts D . coolant leaking into the cylinder

  查看最佳答案

• A water pump can not supply water after startingIt may be caused by （）.

  A . closed discharge valve B . broken pipe line C . worn shaft D . both A and B

  查看最佳答案

• In the Northern hemisphere northerly winds may cause temperature（）.

  A . falling B . rising C . constant D . same

  查看最佳答案

• If a hydraulic pump is overheating, the cause may be （）.

  A、excessive internal leakage in the pump B、low discharge pressure and fluid flow C、excessive fluid level in the hydraulic reservoir D、operation of the pump at 100% efficiency

  查看最佳答案

• A pressure drop in the liquid line of a refrigeration system may cause（）

  A . the solenoid valve to seize B . the compressor to hunt C . flash gas to form in the liquid line D . the expansion valve to freeze ope

  查看最佳答案

• Changes in job design may include: job sharing, rings of defense, bumping, and job relocation.

  查看最佳答案

• The plan calls for a __________ defense than the one we currently have.

  查看最佳答案

• What may be the cause of “I got in trouble.”?

  查看最佳答案

• What is edible in one culture may be considered _____ in another culture and this may cause culture shock.

  查看最佳答案

• Sales promotion may cause customers’ anxiety and distrust. ( )

  查看最佳答案

• Both rogue and underactive neurons may cause troubles.

  查看最佳答案

• Worse, chronic exposure to stress over a long time may cause more serious diseases and may actually shorten your life

  查看最佳答案

• Malnutrition may be caused by ________（）

  A．a poor environment B．unwise food selections C．under-nutrition D．both B and C

  查看最佳答案

• If employment planning shows a large surplus of employees, management may want to__（）

  A．recruit B．downsize C．expand D．continue with current employment levels

  查看最佳答案