單項(xiàng)選擇題In more recent years, （） heat exchangers have frequently been employed for jacket water and oil cooling.
A.shell and tube type
B.plate type
C.coil type
D.conical disc type
您可能感興趣的試卷
你可能感興趣的試題
1.單項(xiàng)選擇題To avoid impingement attack, care must be taken with the water （） through the tubes of the heat exchangers.
A.temperature
B.velocity
C.density
D.viscosity
2.單項(xiàng)選擇題A non-return valve in the air delivery line near to the compressor must be （）type similar to the compressor discharge valve.
A.the low inertia
B.the high inertia
C.the low velocity
D.the high velocity
最新試題
Diesel engine air start system check valves are opened by （）
題型：?jiǎn)雾?xiàng)選擇題
If separating effect is not good, which measure should be taken （）
題型：?jiǎn)雾?xiàng)選擇題
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
題型：?jiǎn)雾?xiàng)選擇題
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
題型：?jiǎn)雾?xiàng)選擇題
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
題型：?jiǎn)雾?xiàng)選擇題