（）is simply a valve that measures the temp erature of the coolant.

A.the intake valve and the inlet valve

B.the intake valve and the inlet valve

C.the output valve and the inlet valve

D.the exhaust valve and the output valve

A.A.Electric valve

B.B.Solenoid valve

C.C.Sampling valve

A.tricuspid valve

B.bicuspid valve

C.mitral valve

D.semilunar valve

A.butterfly valve

B.spectacle valve

C.check valve

D.globe valve

A.valve seat

B.valve guid type

C.side camshaft type

D.intake valve and exhaust

A.Globe valve

B.Butterfly valve

C.Gate valve

D.Packless valve

A.Pressure-reducing valve

B.Unloading valve

C.Counterbalance valve

D.Pressure-relief valve

valve float 意思是气门反跳。()

What type of valve is used to direct the flow of hydraulic fluid？

A.relief valve

B.direction control valve

C.stop valve

D.pressure control valve

A.camshaft

B.valve

C.flywheel

D.timing belt

Before discharge of cargo tank ballast is undertaken，______．

A.the deck isolating valve is open

B.flue gas isolating valve

C.blower suction valve

D.blower discharge valve