Siemens Level 1 (New 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| A Grade
QUESTION
The basic difference between a PLC and a
... [Show More] relay control system is that ...
Answer:
... one uses relay control logic and the other uses programmed instructions.
QUESTION
A device used to convert a binary number to a 7-segment display format is ...
Answer:
... a decoder
QUESTION
Given below is the truth table of a 3-input logic gate. Which logic gate represents the behavior between inputs and outputs according to the truth table?
Answer:
NAND gate
QUESTION
What is the use of end position cushioning of a double-acting cylinder, as shown below?
Answer:
It prevents a hard striking of the piston at the end positions.
QUESTION
In the control circuit shown below, which action will trigger the extension of cylinder 2A?
Answer:
By activating the proximity sensor 1B2.
QUESTION
In the pneumatic controlled system shown below, the cylinder does not retract. Given the following measurements, what could be the possible cause of the malfunction?
Answer:
Adjustable one-way flow control valve 1V2
QUESTION
By observing the meters in the electrical circuit shown below, determine the type of failure in the circuit and which component failed.
Answer:
R1 and R2 are shorted.
QUESTION
Which statements about the mode of operation of the forward/reverse control circuit, as shown below are correct?
Answer:
**NOT If S1 is pressed the motor will rotate in the forward direction until S3 or S2 are pressed AND If "STOP" and "START" are both pressed at the same time nothing will happen.**
QUESTION
The current error situation of the control circuit, as shown below, is described as follows: The claw is closed, the motor M1 does not start. Which statement about troubleshooting are correct?
Answer:
**NOT If the sensor B1 does not send a 1-signal to the PLC input I1.6, contactor K1 should be checked first. AND If the input signal I1.6 of the PLC is low, the sensor B1 should be checked.**
QUESTION
In the feeding application, as shown below, cube halves are pushed out from a magazine. Which statements about the mode of operation are correct?
Answer:
The micro switch checks that cube halves are present in the magazine. AND The fully retracted end position of feed cylinder 2A1 is detected by sensor 2B2.
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