A: high pressure overflow
B: back pressure of return oil
C: direction of oil flow
D: bypass of filer
举一反三
- Check valve is not used to control _______. A: Direction of oil flow B: Back pressure of return oil C: Bypass of filter D: High pressure overflow
- Which of the following hydraulic control valves belongs to pressure control valve （ ）. A: Unloading valve B: overflow throttle valve C: Hydraulic control check valve D: Low pressure selector valve
- In order to ensure that the pressure difference between the front and rear of the throttle valve remains unchanged when the load changes, the flow through the throttle valve is basically unchanged. The throttle valve is often connected with ( ) to form a speed control valve, or the throttle valve and ( ) are connected in parallel to form a bypass speed control valve. A: Pressure reducing valve B: constant pressure reducing valve C: overflow valve D: differential pressure relief valve
- In hydraulic transmission, the hydraulic control valve used to control the pressure, flow and direction of liquid is ( ). A: Power plant B: control unit C: auxiliary device D: Actuator
- The commonly used pressure control valve in hydraulic transmission system is ( ) A: directional valve B: relief valve C: hydraulic control check valve
内容
- 0
Which component is the liver of the lubrication system? A: Screened intake B: Oil filter C: Oil pump D: Oil pressure relief valve
- 1
________is simply a valve that measures the temperature of the coolant. A: Oil pump B: Pressure cap C: Thermostat
- 2
Lubricating oil system parameters monitored by pilots mainly include A: oil pressure, oil temperature, metal filing, oil capacity B: oil color, oil temperature, dust, oil capacity C: oil pressure, oil temperature, dust, oil capacity
- 3
What is the heart of the lubrication system, which is located in the oil pan on the bottom of the engine? And it pulls oil up from the oil pan and makes the engine oil circulate through the engine. A: oil filter B: Screened intake C: oil pump D: oil pressure relief valve
- 4
In the process of reservoir development, a certain oil well stops production while other oil wells around it continue to produce stably. After a long period of time, the measured pressure at the middle depth of the oil layer of the oil well measured is called (). A: Original formation pressure B: Formation pressure C: Current formation pressure D: Static pressure