SIEMENS LEVEL 1 CERTIFICATION ACTUAL
PAPER 2026 FULL SOLUTION QUESTIONS AND
ANSWERS VERIFIED
◉ Which of the following rolling contact bearings are able to absorb
thrust forces at least from one side? Answer: Bearing a, c and d.
◉ An electrical DC machine gets too hot during operation. What
could be the cause? Answer: There is malfunction in the cooling
system. AND The load increased.
◉ A frequency inverter has a malfunction: one low-side switch is
broken and as a result always opens. Result for the driven
asynchronous machine: Answer: More torque ripple and more noise.
AND Less maximum torque.
◉ A system contains two identical circuits operating in parallel as
shown below. As long as both are operating properly, the outputs of
both circuits are always the same. If one of the circuits fails, the
outputs will be at opposite levels. To indicate the failure, the outputs
of the circuits are connected to the inputs of ... Answer: ...an XOR
gate.
, ◉ The basic difference between a PLC and a relay control system is
that ... Answer: ... one uses relay control logic and the other uses
programmed instructions.
◉ A device used to convert a binary number to a 7-segment display
format is ... Answer: ... a decoder
◉ 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
◉ 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.
◉ In the control circuit shown below, which action will trigger the
extension of cylinder 2A? Answer: By activating the proximity
sensor 1B2.
◉ 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
PAPER 2026 FULL SOLUTION QUESTIONS AND
ANSWERS VERIFIED
◉ Which of the following rolling contact bearings are able to absorb
thrust forces at least from one side? Answer: Bearing a, c and d.
◉ An electrical DC machine gets too hot during operation. What
could be the cause? Answer: There is malfunction in the cooling
system. AND The load increased.
◉ A frequency inverter has a malfunction: one low-side switch is
broken and as a result always opens. Result for the driven
asynchronous machine: Answer: More torque ripple and more noise.
AND Less maximum torque.
◉ A system contains two identical circuits operating in parallel as
shown below. As long as both are operating properly, the outputs of
both circuits are always the same. If one of the circuits fails, the
outputs will be at opposite levels. To indicate the failure, the outputs
of the circuits are connected to the inputs of ... Answer: ...an XOR
gate.
, ◉ The basic difference between a PLC and a relay control system is
that ... Answer: ... one uses relay control logic and the other uses
programmed instructions.
◉ A device used to convert a binary number to a 7-segment display
format is ... Answer: ... a decoder
◉ 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
◉ 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.
◉ In the control circuit shown below, which action will trigger the
extension of cylinder 2A? Answer: By activating the proximity
sensor 1B2.
◉ 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
