A.Mill
B.Round
C.Square
D.Triangular
您可能感興趣的試卷
你可能感興趣的試題
A.your work becoming rounded
B.injury to your hand
C.overheating of the file
D.pinning
A.safe for becoming rounded
B.safe for hot work
C.not safe for personnel
D.not safe for hot work
A.checking the area for items that may catch fire
B.that a fire watch be posted
C.checking for the explosive gases
D.all of the above
A.Flash point improvers
B.Pour point improvers
C.Inhibitors
D.Foam suppressors
A.Low viscosity index
B.Low carbon forming tendencies
C.High film strength
D.High non-corrosive qualities
最新試題
The cetane rating of diesel fuel is an indication of the （）
（） is not installed on the main switchboar.
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
Which of the following items don’t belong to dock repair works?（）
Cold weather starting of a diesel engine may be made easier by（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）