网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
The （）(天窗) admits light and fresh air through.
- A、skylight
- B、bulwark
- C、keel
- D、bulkhead
参考答案
更多 “The （）(天窗) admits light and fresh air through.A、skylightB、bulwarkC、keelD、bulkhead” 相关考题
考题
—May I open the window to let in some fresh air ?—___________A. Come on B. Take care C. Go ahead! D. Hold on!
考题
In Leon Nacson’s view, air and water are our Number One priorities for the following reasons except ().A、he cannot understand why people are polluting air and waterB、there will definitely be no fresh air and clean water for future generationsC、we would run out of air and water if we didn’t stop polluting themD、air and water polluting are the current and futu
考题
Heating，ventilating，and air conditioning（HVAC） systems are______in most of underground subway stations to provide comfortable and fresh air to underground subway stations。A.assembled
B.installing
C.equipped
D.installed
考题
If headaches only occur at night,lack of fresh air is often the cause.A:start B:begin C:happen D:visit
考题
If headaches only occur at night,lack of fresh air is often the cause.A:start B:begin C:happen D:visit
考题
We should take （）to keep the chemicals away from fire.A、great careB、some measuresC、fresh waterD、fresh air
考题
单选题The fresh air coming in through the inner air ports, is compressed by（） to a higher pressure.A
the cylinder headB
the cross-headC
the moving pistonD
the stationary piston
考题
单选题In an engine with air inlet valve and exhaust valve on its cylinder heads the fresh air will enter into the cylinder （） and the gases exhaust （）, there being an adequate overlap between the inlet opening and the exhaust closing.A
downwards；upwardsB
upwards；downwardsC
downwards；downwardsD
upwards；upwards
考题
单选题Scavenging is （） of exhaust gases by blowing in fresh air.A
the suctionB
the compressionC
the removalD
the deliver
考题
单选题The air distributor is conventionally driven by（） and distributes into each cylinder by（） certain sequence.A
camshaft；fresh airB
camshaft；starting airC
electronic motor which is controlled by a computer；fresh airD
electronic motor which is controlled by a computer；starting air
考题
单选题Modem engines make use of exhaust gas driven turbo-chargers to supply pressurized fresh air for （） and supercharging.A
scavengingB
startingC
coolingD
blowing
考题
单选题The term diesel engine scavenging means（）A
delivering more air into the cylinder than it would normally receive during an ordinary charging processB
forcing the products of combustion out of the cylinder with the fresh air chargeC
collecting the air charge at the cleanerD
combustion and expansion of hot gas
考题
单选题Gas exchange, which is a basic part of the cycle of an internal combustion engine, is（）A
the supply of normal air and removal of compressed airB
the supply of fuel oil and combustion of the atomized oilC
the supply of fresh air and removal of exhaust gasesD
the supply of fresh air and removal of the extra heat
考题
单选题Most air conditioning units have （） for adjusting the ratio of recirculated fresh airCare must be taken not to reduce the fresh air so that stuffiness or smells arise.A
catch platesB
dampersC
regulating valvesD
fans
考题
单选题What is the passage mainly about?A
How to fight air pollution in big cities.B
How to avoid air pollution in big cities.C
How to breathe fresh air in big cities.D
How serious air pollution is in big cities.
考题
单选题To prevent the unnecessary loading of an air conditioning system while maintaining the designed dry bulb temperature and relative humidity in an air conditioning system, you should （）A
admit only enough fresh outside air to provide proper ventilationB
reduce the air reheating system loadC
lower the compressor head pressureD
operate the purge recovery unit continuously
考题
单选题In a two-stroke/cycle diesel engine, the exhaust gases are expelled from the cylinder by the（）A
exhaust manifoldB
valve bridgeC
pressure of the fresh air chargeD
valve adjusting gear
考题
单选题In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move（）A
up and draw in a fresh air chargeB
down to burn off fuelC
down to compress the fuel air chargeD
up and force out the exhaust gases
考题
单选题A charge of fresh air is drawn into the engine cylinder and then （） by the moving piston（） very high pressure.A
pressed；toB
pressurized；withC
pushed；inD
compressed；to
考题
单选题The process to remove exhaust gases by blowing in fresh air is called （）.A
chargingB
superchargingC
startingD
scavenging
考题
单选题（） is (are) not power supplied by main switchboard directly.A
Steering gear and windlassB
Navigation light and radio power panelC
Navigation device power boxD
Daily fresh water pump
热门标签
最新试卷
