超星 - Ture or false - 查题吧

判断题

In the case of the same flow rate, the larger the diameter of the hydraulic cylinder, the faster the piston movement speed ( )

A. 对
B. 错

判断题

In the hydraulic transmission system, in order to achieve the same reciprocating speed of the machine tool , a double rod piston hydraulic cylinder cab be used ( )

A. 对
B. 错

判断题

Due to the pressure loss and leakage when the oil flows in the pipeline, the output power of the hydraulic pump is less than the power delivered to the hydraulic cylinder ( )

A. 对
B. 错

判断题

Connect the left and right chambers of the single-rod hydraulic cylinder and introduce pressure oil at the same time to make the piston move quickly ( )

A. 对
B. 错

判断题

Pressure and flowrate are the most important parameters in hydraulic transmission ( )

A. 对
B. 错

判断题

The compressed air used in the pneumatic transmission system must be dried and purified before it can be used ( )

A. 对
B. 错

判断题

Pneumatic motor is a device that converts the pressure energy of compressed air into linear motion mechanical energy ( )

A. 对
B. 错

判断题

The pneumatic control directional valve can use the gas pressure to move the main spool and change the direction of the gas ( )

A. 对
B. 错

判断题

In the spool valve, hydraulic fluid acts as sealant to reduce leakage.

A. 对
B. 错

判断题

People can learn to become more self-confident.

A. 对
B. 错

2