Siemens Level 1 Hydraulic/Pneumatic #2

Front

A pneumatic valve is defined as a “5/3-valve”. What do the numbers 5/3 mean in this definition?

Back

The valve has 5 ports and 3 switching positions.

Front

What is the use of end position cushioning of a double-acting cylinder, as shown below?

Back

It prevents a hard striking of the piston at the end positions.

Front

In the clamp application, the system has to perform a cycle of five steps. The clamp close cylinder (gripper) 2A extends to grab the part and then the system stops. Which of the following components is the possible cause of malfunction? (It can be assumed, that the PLC program is working properly.) Options: Clamp extend cylinder 1A, Magnetic reed switch sensor 1B1, Magnetic reed switch sensor 1B2, Flow control valve 1V2, Inductive sensor 2B2

Back

Inductive sensor 2B2

Front

In a lift and transfer application, as shown below, a part is transferred on a motor driven traverse axis carriage. At the end of travel position the carriage is stopped. Cylinder 2A extends to lift the part. Next cylinder 1A extends to move the part onto the next station. If cylinder 1A fails to retract, what is the possible cause? Options: Flow control valve 1V2 is fully open., Flow control valve 1V3 is fully open., Solenoid 1M2 of directional control valve 1V1 is energized., Air pressure is present at port 1 of directional control valve 1V1., No air pressure is present at port 2 of directional control valve 1V1.

Back

No air pressure is present at port 2 of directional control valve 1V1.

Front

The table below shows an overview about the common technical characteristics of a pneumatic actuator. The table belongs to a …

Back

single-acting cylinder.

Front

Using the circuit below, if valve 1V2 is clogged, what will happen?

Back

The cylinder will extend but not retract.

Front

What could be the possible cause of the malfunction in the pneumatic control circuit where output Q5.3 is switched on and Cylinder 1A does not extend? Options: 1M1 of directional control valve 1V1, Cylinder 1A, Adjustable one-way flow control valve 1V2, Sensor 1S2, Adjustable one-way flow control valve 1V3

Back

1M1 of directional control valve 1V1

Front

In the subsystem, after sensor 1S2 sends a signal to the PLC input I0.1 (status indicator associated with 1S2 is switched on), Cylinder 2A must extend but the system does not execute this step. Which strategy should you take to find the fault? Options: check the sensor 2B2 and the cable between sensor 2B2 and the input of the PLC, check the output signal at Q5.2 of the PLC and the voltage at the solenoid 2M2 of DCV 2V1, check the voltage at the solenoid 2M1 of DCV 2V1 and the output signal at Q5.0 of the PLC, check the resistance value of solenoid 2M2, check the sensor 1S2 and the cable between sensor 1S2 and the input I0.1 of the PLC.

Back

check the voltage at the solenoid 2M1 of DCV 2V1 and the output signal at Q5.0 of the PLC

Front

A part is to be lifted by a hydraulic jack, as shown below. The pressure within the fluid can be described by …

Back

F1 / A1 = F2 / A2 when the system is in equilibrium