第1题:
In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve?
A.Noise coming from that air starting valve
B.Continuous operation of the starting air compressor
C.Zero air pressure in the air starting system
D.Overheated starting air pipe to the cylinder head
第2题:
Consonants vary depending on where and how the air stream gets through, the place and movement of the tongue, and also whether the voice is used or not.()
A对
B错
第3题:
Consonants vary depending on where and how the air stream gets through, the place and movement of the tongue, and also whether the voice is used or not.()
第4题:
() is a system of unitized multimodal land transportation of transport by road and rail.
第5题:
()is the disadvantage for air transportation?
第6题:
Quick but not safe
Less frequency
It can’t lift heavy goods
the highest cost in all transport modes
第7题:
single
Ⅱ
Ⅲ
multiple
第8题:
The density of the air entering the compressor
The temperature of the air entering the compressor
The designed rotating speed of the compressor
A leaking head gasket
第9题:
inter cooler
cylinder
outlet pipe
inlet pipe
第10题:
对
错
第11题:
Work
Worked
Working
To be working
第12题:
对
错
第13题:
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. 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
第14题:
()in the open air has given you a good color.
AWork
BWorked
CWorking
DTo be working
第15题:
In international air cargo transportation, Specific Commodity Rates are usually lower than General Cargo Rates.
第16题:
What is the disadvantage for air transportation? ()
第17题:
The modes of transportation include()。
第18题:
possible
necessary
practicable
impracticable
第19题:
As automobiles replaced horses as the primary means of transportation, it was widely anticipated that
Insofar as automobiles replaced horses as the primary means of transportation, it was anticipated widely
With horses being replaced by automobiles as the primary means of transportation, there was wide anticipation that
As the primary means of transportation replaced horses with automobiles, many anticipated that
Automobiles replacing horses as the primary means of transportation produced anticipation widely that
第20题:
naive
nasty
native
naughty
第21题:
we should appeal to more people to be ethical consumers
the influence of ethical consumers is increasingly on the rise
fair working conditions has become the core value in society
fair working conditions should be encouraged even at some cost
第22题:
Excessive piston blow-by to the manifold
Insufficient cooling water flow
Accumulated water in the air boxes
Clogged air intake filters
第23题:
few
little
a little
less