Any time it is deemed necessary
Only with the masters permission
After a 10 minute delay to the input command
Only after the throttle has been placed in stop
第1题:
A. show running-config
B. show processes cpu
C. debug all
D. logging host ip address
第2题:
Which of the listed classes of fire would most likely occur in the engine room of a vessel?
A.Classes A and B
B.Classes B and C
C.Classes C and D
D.Classes A and D
第3题:
Which of the units listed is used to combust waste in the engine room?
A.Boiler
B.Incinerator
C.Generator
第4题:
Dirty lube oil filter
Too much piston ring wear
High lube oil viscosity
Low lube oil temperature
第5题:
Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?()
第6题:
题干材料:Due to the large amount of heat picked up by the air in boiler and engine rooms, it would be impracticable to maintain ambient conditions within the comfort zone by air conditioning or any other means. The normal practice is to provide copious mechanical ventilation; in boiler rooms, the quantity is equated to the combustion requirements, while in a motor ship engine room the supply may be 25-50% in excess of the requirements of the engines.
The axial flow fan is particularly suited to handle these large air volumes at the moderate pressures required, while of course the “straight-through” flow feature places it at an advantage over the centrifugal fan.
The increasing adoption of automation, with the provision of a separate control room makes less significant the fact that comfort conditions cannot be maintained in the engine room all the time.
问题:Which of the following devices should be taken to maintain ambient conditions of the boiler and machinery space?
A.air compressor
B.air cooler
C.air-conditioning plant
D.mechanical ventilation plant
In a motor vessel, the air quantity which the engine room need is_______ of the requirements of the engines.A.less than 25-50%
B.more than 125-150%
C.more than 25-50%
D.less than 125-150%
According to this passage, which of the following statements is true?
A.In boiler and machinery spaces, there is the air conditioning
B.In the boiler rooms the requirement of air volume should meet 25-50% of combustion requirement
C.To maintain the comfort zone in the separate control room the air conditioning plant should be fitted
D.The comfort conditions can be maintained in the engine room all the time
At the middle pressure and large air quantity,_________ is more suitable.A.an axial flow fan
B.a radial flow blower
C.a centrifugal fan
D.an auxiliary blower
请帮忙给出每个问题的正确答案和分析,谢谢!
第7题:
According to this passage, which of the following statements is true?
A.In boiler and machinery spaces, there is the air conditioning.
B.In the boiler rooms the requirement of air volume should meet 25-50% of combustion requirement.
C.To maintain the comfort zone in the separate control room the air conditioning plant should be fitted.
D.The comfort conditions can be maintained in the engine room all the time.
第8题:
Which of the listed conditions can be considered as the single greatest cause of accidents?
A.Speed
B.Excessive knowledge or skill
C.Human error
D.Excitement
第9题:
clogged air filter
compression stroke
burned exhaust valves
all of the above
第10题:
Exhaust temperature
Lube oil level
Lube oil pressure
Water level in the expansion tank