When preparing an engine for running, the cooling water temperature should be _______.
A: kept at a proper level by a coole
B: aised to about 80℃ by a heate
C: aised gradually
D: lowered to about 60℃
A: kept at a proper level by a coole
B: aised to about 80℃ by a heate
C: aised gradually
D: lowered to about 60℃
举一反三
- A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water _____. A: around the engine B: around the coole C: to the expansion tank D: overboard
- About half an hour before the engine is required， cooling water at （） must be circulated.
- A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water _____.
- The cylinder jacket cooling water after leaving_______passes to the jacket water cooler and[br][/br]then into the jacket water circulating pumps. A: the jacket water coole B: the expansion tank C: the heat exchange D: the engine
- Temperature control valves installed in the jacket cooling water system of a diesel engine modulates the rate of water flow through the （）.