SIEMENS LEVEL 1 EXAM Actual Exam 2026/2027
Complete Questions and Verified Answers with
Detailed Rationales Grade A 100% Correct Pass
Guaranteed - A+ Graded
SECTION 1: SIEMENS OVERVIEW AND PRODUCT PORTFOLIO (Questions 1-10)
Q1: Which Siemens product family is primarily used for programmable logic controllers (PLCs)
and HMIs?
• A. SINAMICS
• B. SIMATIC [CORRECT]
• C. SINUMERIK
• D. SIRIUS
Correct Answer: B Rationale: SIMATIC is the Siemens product family for industrial
automation, including PLCs (S7 series), HMIs, and industrial PCs (B). SINAMICS (A) is the
drive systems family. SINUMERIK (C) is for CNC machine tools. SIRIUS (D) covers industrial
controls like contactors and overload relays.
Q2: In which year was Siemens founded, and by whom?
• A. 1900 by Werner von Siemens
• B. 1847 by Werner von Siemens [CORRECT]
• C. 1910 by Karl von Siemens
• D. 1870 by Wilhelm von Siemens
Correct Answer: B Rationale: Siemens was founded in 1847 by Werner von Siemens and
Johann Georg Halske in Berlin (B). Werner von Siemens invented the pointer telegraph,
establishing the company's foundation in electrical engineering. The company has since grown
into a global technology conglomerate.
Q3: Which Siemens business segment focuses on automation, software, and drive technologies?
• A. Smart Infrastructure
, • B. Digital Industries [CORRECT]
• C. Mobility
• D. Healthineers
Correct Answer: B Rationale: Digital Industries (B) is the Siemens business segment that
encompasses factory automation, motion control, control electrical products, and software for
industrial applications. Smart Infrastructure (A) focuses on building technologies and energy
distribution. Mobility (C) handles transportation systems. Healthineers (D) is the medical
technology division.
Q4: Which product family would be most appropriate for controlling a CNC milling machine?
• A. SIMATIC
• B. SINAMICS
• C. SINUMERIK [CORRECT]
• D. SIRIUS
Correct Answer: C Rationale: SINUMERIK (C) is Siemens' product family specifically
designed for CNC (Computer Numerical Control) machine tools, providing advanced motion
control and machining capabilities. SIMATIC (A) is for general automation. SINAMICS (B)
provides the drive components often used with SINUMERIK but doesn't provide the CNC
control. SIRIUS (D) is for basic industrial control.
Q5: Which SINAMICS drive series is designed for basic, cost-effective applications with simple
commissioning?
• A. SINAMICS S120
• B. SINAMICS G120
• C. SINAMICS V20 [CORRECT]
• D. SINAMICS V90
Correct Answer: C Rationale: SINAMICS V20 (C) is designed for basic applications with
simple commissioning requirements and cost-effective operation. S120 (A) is for high-
performance motion control. G120 (B) is for general-purpose applications with modular design.
V90 (D) is a servo drive system for positioning applications.
,Q6: Which product family includes industrial Ethernet switches for automation networks?
• A. SIMATIC NET
• B. SCALANCE [CORRECT]
• C. SINAMICS
• D. SIMOGEAR
Correct Answer: B Rationale: SCALANCE (B) is the Siemens product family for industrial
communication networks, including Ethernet switches, routers, and wireless access points
designed for harsh industrial environments. SIMATIC NET (A) refers to communication
software and processors. SINAMICS (C) is for drives. SIMOGEAR (D) is for geared motors.
Q7: Which Siemens product line provides industrial controls such as contactors, overload relays,
and motor starters?
• A. SIMATIC
• B. SIRIUS [CORRECT]
• C. SINUMERIK
• D. SIMOGEAR
Correct Answer: B Rationale: SIRIUS (B) is Siemens' comprehensive portfolio for industrial
controls, including 3RT contactors, 3RU thermal overload relays, and motor starters. SIMATIC
(A) covers PLCs and HMIs. SINUMERIK (C) is for CNC systems. SIMOGEAR (D) provides
geared motors.
Q8: In the Siemens organizational structure, which division handles building automation and
energy distribution?
• A. Digital Industries
• B. Smart Infrastructure [CORRECT]
• C. Siemens Energy
• D. Siemens Financial Services
Correct Answer: B Rationale: Smart Infrastructure (B) combines building technologies
(HVAC, fire safety, security) with electrical products and smart grid solutions for energy
distribution. Digital Industries (A) focuses on factory automation. Siemens Energy (C) was spun
, off and handles power generation and transmission. Financial Services (D) provides financing
solutions.
Q9: Which SIMATIC product series is considered a high-performance PLC for complex
automation tasks with integrated safety functions?
• A. S7-1200
• B. S7-1500 [CORRECT]
• C. S7-300
• D. LOGO!
Correct Answer: B Rationale: S7-1500 (B) is Siemens' high-performance PLC series designed
for medium to high-end applications, featuring advanced motion control, integrated safety (F-
CPU), and high-speed processing. S7-1200 (A) is for compact applications. S7-300 (C) is the
predecessor series. LOGO! (D) is a micro-PLC for simple tasks.
Q10: Which communication protocol is native to the Totally Integrated Automation (TIA) Portal
environment for PLC programming?
• A. Modbus RTU
• B. PROFINET [CORRECT]
• C. DeviceNet
• D. AS-Interface
Correct Answer: B Rationale: PROFINET (B) is the native Industrial Ethernet protocol
integrated into TIA Portal and modern Siemens PLCs, providing real-time communication and
seamless integration. While TIA Portal supports Modbus (A) and AS-i (D) through additional
configuration, PROFINET is the primary, native protocol. DeviceNet (C) is not natively
supported.
SECTION 2: PLC FUNDAMENTALS (Questions 11-25)
Q11: During a PLC scan cycle, what is the correct sequence of operations?
• A. Execute program, read inputs, write outputs
• B. Read inputs, execute program, write outputs [CORRECT]
Complete Questions and Verified Answers with
Detailed Rationales Grade A 100% Correct Pass
Guaranteed - A+ Graded
SECTION 1: SIEMENS OVERVIEW AND PRODUCT PORTFOLIO (Questions 1-10)
Q1: Which Siemens product family is primarily used for programmable logic controllers (PLCs)
and HMIs?
• A. SINAMICS
• B. SIMATIC [CORRECT]
• C. SINUMERIK
• D. SIRIUS
Correct Answer: B Rationale: SIMATIC is the Siemens product family for industrial
automation, including PLCs (S7 series), HMIs, and industrial PCs (B). SINAMICS (A) is the
drive systems family. SINUMERIK (C) is for CNC machine tools. SIRIUS (D) covers industrial
controls like contactors and overload relays.
Q2: In which year was Siemens founded, and by whom?
• A. 1900 by Werner von Siemens
• B. 1847 by Werner von Siemens [CORRECT]
• C. 1910 by Karl von Siemens
• D. 1870 by Wilhelm von Siemens
Correct Answer: B Rationale: Siemens was founded in 1847 by Werner von Siemens and
Johann Georg Halske in Berlin (B). Werner von Siemens invented the pointer telegraph,
establishing the company's foundation in electrical engineering. The company has since grown
into a global technology conglomerate.
Q3: Which Siemens business segment focuses on automation, software, and drive technologies?
• A. Smart Infrastructure
, • B. Digital Industries [CORRECT]
• C. Mobility
• D. Healthineers
Correct Answer: B Rationale: Digital Industries (B) is the Siemens business segment that
encompasses factory automation, motion control, control electrical products, and software for
industrial applications. Smart Infrastructure (A) focuses on building technologies and energy
distribution. Mobility (C) handles transportation systems. Healthineers (D) is the medical
technology division.
Q4: Which product family would be most appropriate for controlling a CNC milling machine?
• A. SIMATIC
• B. SINAMICS
• C. SINUMERIK [CORRECT]
• D. SIRIUS
Correct Answer: C Rationale: SINUMERIK (C) is Siemens' product family specifically
designed for CNC (Computer Numerical Control) machine tools, providing advanced motion
control and machining capabilities. SIMATIC (A) is for general automation. SINAMICS (B)
provides the drive components often used with SINUMERIK but doesn't provide the CNC
control. SIRIUS (D) is for basic industrial control.
Q5: Which SINAMICS drive series is designed for basic, cost-effective applications with simple
commissioning?
• A. SINAMICS S120
• B. SINAMICS G120
• C. SINAMICS V20 [CORRECT]
• D. SINAMICS V90
Correct Answer: C Rationale: SINAMICS V20 (C) is designed for basic applications with
simple commissioning requirements and cost-effective operation. S120 (A) is for high-
performance motion control. G120 (B) is for general-purpose applications with modular design.
V90 (D) is a servo drive system for positioning applications.
,Q6: Which product family includes industrial Ethernet switches for automation networks?
• A. SIMATIC NET
• B. SCALANCE [CORRECT]
• C. SINAMICS
• D. SIMOGEAR
Correct Answer: B Rationale: SCALANCE (B) is the Siemens product family for industrial
communication networks, including Ethernet switches, routers, and wireless access points
designed for harsh industrial environments. SIMATIC NET (A) refers to communication
software and processors. SINAMICS (C) is for drives. SIMOGEAR (D) is for geared motors.
Q7: Which Siemens product line provides industrial controls such as contactors, overload relays,
and motor starters?
• A. SIMATIC
• B. SIRIUS [CORRECT]
• C. SINUMERIK
• D. SIMOGEAR
Correct Answer: B Rationale: SIRIUS (B) is Siemens' comprehensive portfolio for industrial
controls, including 3RT contactors, 3RU thermal overload relays, and motor starters. SIMATIC
(A) covers PLCs and HMIs. SINUMERIK (C) is for CNC systems. SIMOGEAR (D) provides
geared motors.
Q8: In the Siemens organizational structure, which division handles building automation and
energy distribution?
• A. Digital Industries
• B. Smart Infrastructure [CORRECT]
• C. Siemens Energy
• D. Siemens Financial Services
Correct Answer: B Rationale: Smart Infrastructure (B) combines building technologies
(HVAC, fire safety, security) with electrical products and smart grid solutions for energy
distribution. Digital Industries (A) focuses on factory automation. Siemens Energy (C) was spun
, off and handles power generation and transmission. Financial Services (D) provides financing
solutions.
Q9: Which SIMATIC product series is considered a high-performance PLC for complex
automation tasks with integrated safety functions?
• A. S7-1200
• B. S7-1500 [CORRECT]
• C. S7-300
• D. LOGO!
Correct Answer: B Rationale: S7-1500 (B) is Siemens' high-performance PLC series designed
for medium to high-end applications, featuring advanced motion control, integrated safety (F-
CPU), and high-speed processing. S7-1200 (A) is for compact applications. S7-300 (C) is the
predecessor series. LOGO! (D) is a micro-PLC for simple tasks.
Q10: Which communication protocol is native to the Totally Integrated Automation (TIA) Portal
environment for PLC programming?
• A. Modbus RTU
• B. PROFINET [CORRECT]
• C. DeviceNet
• D. AS-Interface
Correct Answer: B Rationale: PROFINET (B) is the native Industrial Ethernet protocol
integrated into TIA Portal and modern Siemens PLCs, providing real-time communication and
seamless integration. While TIA Portal supports Modbus (A) and AS-i (D) through additional
configuration, PROFINET is the primary, native protocol. DeviceNet (C) is not natively
supported.
SECTION 2: PLC FUNDAMENTALS (Questions 11-25)
Q11: During a PLC scan cycle, what is the correct sequence of operations?
• A. Execute program, read inputs, write outputs
• B. Read inputs, execute program, write outputs [CORRECT]
