题目内容
（请给出正确答案）
Flame failure in an automatically fired auxiliary boiler can from a/an _________.
A.incorrect electrode setting
B.incorrect nozzle position
C.clogged fuel nozzle
D.broken high tension lead
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更多“Flame failure in an automatica…”相关的问题
第1题
Failure of the burner flame in an auxiliary boiler would probably be a result of .
A.water in the fuel oil
B.broken high tension leads
C.incorrect electrode setting
D.full fuel pressure at the nozzle
第2题
In the event of a flame failure in an auxiliary water-tube boiler, you must______.
A.relight the boiler immediately to prevent loss of steam pressure
B.relight the fire off the brickwork as the bricks are cherry red
C.purge the furnace of any combustible gases before attempting to relight the fire
D.speed up the feed pump to prevent dry firing when the burner flame is reestablished
第3题
Ignition failure in an automatically controlled auxiliary boiler could be caused by .
A.carbon deposits on the flame scanner
B.high fuel oil temperature
C.low fuel oil viscosity
D.high steam pressure
第4题
A.in the event of a flame failure
B.in the event of a stack fire
C.when the water level reach the crown sheet
D.when the feed pump discharge pressure drops to a preset minimum
第5题
A.air supply is shut off
B.fuel supply is shut off
C.water supply is shut off
D.safety valve lifts
第6题
根据短文回答 31～35 题。
The Greatest Show on Earth
The Olympic Games are the greatest festival of sport in the world Every four years, a hundred or more countries send their best sportsmen to compete for the highest honors in sport As many as 6,000 people take part in over 20 sports For the winners, there are gold medals and glory But there is honor, too, for all who compete, win or lose That is in the spirit of the Olympics--to take part is what matters
The Olympic Games always start in a bright color and action The teams of all the nations parade in the opening ceremony and march round the track The custom is for the Greek team to march in first For it was in Greece that the Olympics began The team of the country where the Games are being held -- the host country -- marches in last
The runner with the Olympic torch (火炬) then enters the stadium and lights the flame A sportsman from the host country takes the Olympic oath (宣誓) on behalf of all the competitors The judges and officials also take an oath After the sportsmen march out of the stadium, the host country puts on a wonderful display
The competitions begin the next day there are usually more than twenty sports in the Games The rule is that there must be at least fifteen The main events are in track and field, but it is a few days before these sports start Each day the competitors take part in a different sport--riding, shooting, swimming, and cross-country running Points are gained for each event Medals are awarded for the individual winners and for national teams
More and more women are taking part in the games they first competed in 1900, in tennis and golf, which are no longer held in the Olympics Women's swimming events were introduced in 1912 But it was not until 1928 that there were any track and field events for women Now, they compete in all but half a dozen of the sports In horse riding, shooting, and boat racing, they may compete in the same events as the men
第 31 题 Why is there honor for the losers as well as for the winners？
A．Because failure is the mother of success
B．Because losers need encouragement
C．Because losers and winners should be equally treated
D．Because what really matters is take part in the Olympic Games
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