All the company’s aircraft have been grounded, after a ________ in the engine cooling system was discovered.
defect
举一反三
- The purpose of the engine's cooling system is to remove excess heat from the engine, to keep the engine operating at its most efficient temperature,and to get the engine up to the correct temperature as soon as possible after starting.
- The fuel oil system in the ship's engine room is not included . A: Fuel purifying system B: Fuel transfer system C: Fuel supply system D: Fuel cooling system
- Engine system includes __________________, starting system, __________________ cooling system, fuel supply system, crank-connection rod mechanism and __________________.
- The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and （）.
- The purposes of the _____ are to remove excess heat , to keep the engine operating and to warm up the engine A: engine lubrication system B: engine cooling system C: crank mechanism D: valve train
内容
- 0
The highest pressure in any closed diesel engine freshwater cooling system is at the （）.
- 1
Which of the following statements describes the function of an expansion tank in a diesel engine cooling system?（）
- 2
The most serious effect of air trapped in a diesel engine jacket water cooling system is that it（）.
- 3
There is （） in any water cooling system for a diesel engine allowing for expansion and water make-up in the system as well as air vent and chemicals addition.
- 4
The pH value of water in a diesel engine closed cooling water system should be maintained between （）.