举一反三
- Depending on the power sources, pumps used in hydraulic system are divided into engine driven pump, electrically driven pump and hand pump.
- Who invented Chain Pump?
- 1 In the pressure system oil is supplied by an oil pump driven by the _______
- Chain pump was invented by Ma Jun in the Three Kingdoms period.
- The plunger in the fuel injector pump， usually operated by a （）， is driven up and down when working.
内容
- 0
Before starting a diesel engine that has an engine driven lube oil pump， the engineer should （）.
- 1
The lube oil pump used in a diesel engine is a( ) usually. A: volute pump B: centrifugal pump C: diaphragm pump D: gear pump
- 2
The fire water system in residential buildings and shopping malls is similar to that on ships, but the difference is that the fire-fighting water on land is generally fresh water provided by the tap water network, and the fire-fighting water on ships is generally sea water provided by_____. A: fire pump B: emergency fire pump C: daily water pump D: A or B
- 3
The in the lubricating system draws oil from the oil pan and sends it to all working parts in the engine. A: fuel pump B: oil pump C: diesel pump D: gasoline pump
- 4
65. The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current's