Flexible Automation Chapter 1&2 Exam
UPDATED QUESTIONS AND CORRECT
ANSWERS
Programmable logic controllers are used to control ____.
A. robots
B. electric motors
C. conveyors
D. All of the above - CORRECT ANSWER D. All of the above
PLCs were first introduced in the ____.
A. automotive industry
B. power industry
C. process industry
D. None of the above - CORRECT ANSWER A. automotive industry
PLCs are designed to replace ____.
A. microprocessors
B. microcontrollers
C. electromechanical relay panels
D. desktop computers - CORRECT ANSWER C. electromechanical relay panels
Which of the following component(s) can be found in a PLC?
A. central processing units
B. input/output ports
C. power supply
D. All of the above. - CORRECT ANSWER D. All of the above.
The first PLC was built by ____.
A. General Motor
,B. Allen-Bradley
C. Siemens
D. IBM - CORRECT ANSWER A. General Motor
Which of the following is part of the central processing unit (CPU)?
A. RAM and ROM memory units
B. Microprocessor
C. Support chips
D. All of the above. - CORRECT ANSWER D. All of the above.
A microprocessor has a(n) ____.
A. arithmetic logic unit (ALU)
B. decode unit
C. data and instruction cache
D. All of the above. - CORRECT ANSWER D. All of the above.
Changing relay logic requires ____.
A. rewiring the relays
B. changing input port names
C. changing output port addresses
D. None of the above - CORRECT ANSWER A. rewiring the relays
An advantage of changing a relay logic circuit over a PLC logic control is ____.
A. it is less expensive
B. it is less time consuming to program
C. it has less current capability
D. None of the above. - CORRECT ANSWER D. None of the above.
Static RAM ____.
A. requires more space than dynamic RAM on the PLC motherboard
, B. is more expensive than dynamic RAM
C. requires more transistors and has faster response than dynamic RAM
D. All of the above - CORRECT ANSWER D. All of the above
Which of the following statements is false?
A. EPROM can be programmed several times.
B. EEPROM can be programmed several times.
C. Flash ROM can be programmed several times.
D. Masked ROM can be programmed several times. - CORRECT ANSWER D. Masked ROM
can be programmed several times.
Which of the following statements is false?
A. Optoisolators are used to protect CPU from high voltage in the input port
B. Optoisolators are used to protect CPU from a short circuit in the output port
C. Optoisolators are used to protect the input/output devices
D. Optoisolators are used to isolate the CPU from input/output ports - CORRECT ANSWER C.
Optoisolators are used to protect the input/output devices
Allen-Bradley industrial controllers are grouped as ____.
A. Programmable Logic Controllers
B. Programmable Automation Controllers
C. Safety Programmable Controllers
D. All of the above. - CORRECT ANSWER D. All of the above.
. Which of the following method(s) may be used to program PLCs?
A. Ladder Logic Diagram (LLD) programming
B. Function block programming
C. Text programming
D. All of the above. - CORRECT ANSWER D. All of the above.
Which of the following statements is false?
UPDATED QUESTIONS AND CORRECT
ANSWERS
Programmable logic controllers are used to control ____.
A. robots
B. electric motors
C. conveyors
D. All of the above - CORRECT ANSWER D. All of the above
PLCs were first introduced in the ____.
A. automotive industry
B. power industry
C. process industry
D. None of the above - CORRECT ANSWER A. automotive industry
PLCs are designed to replace ____.
A. microprocessors
B. microcontrollers
C. electromechanical relay panels
D. desktop computers - CORRECT ANSWER C. electromechanical relay panels
Which of the following component(s) can be found in a PLC?
A. central processing units
B. input/output ports
C. power supply
D. All of the above. - CORRECT ANSWER D. All of the above.
The first PLC was built by ____.
A. General Motor
,B. Allen-Bradley
C. Siemens
D. IBM - CORRECT ANSWER A. General Motor
Which of the following is part of the central processing unit (CPU)?
A. RAM and ROM memory units
B. Microprocessor
C. Support chips
D. All of the above. - CORRECT ANSWER D. All of the above.
A microprocessor has a(n) ____.
A. arithmetic logic unit (ALU)
B. decode unit
C. data and instruction cache
D. All of the above. - CORRECT ANSWER D. All of the above.
Changing relay logic requires ____.
A. rewiring the relays
B. changing input port names
C. changing output port addresses
D. None of the above - CORRECT ANSWER A. rewiring the relays
An advantage of changing a relay logic circuit over a PLC logic control is ____.
A. it is less expensive
B. it is less time consuming to program
C. it has less current capability
D. None of the above. - CORRECT ANSWER D. None of the above.
Static RAM ____.
A. requires more space than dynamic RAM on the PLC motherboard
, B. is more expensive than dynamic RAM
C. requires more transistors and has faster response than dynamic RAM
D. All of the above - CORRECT ANSWER D. All of the above
Which of the following statements is false?
A. EPROM can be programmed several times.
B. EEPROM can be programmed several times.
C. Flash ROM can be programmed several times.
D. Masked ROM can be programmed several times. - CORRECT ANSWER D. Masked ROM
can be programmed several times.
Which of the following statements is false?
A. Optoisolators are used to protect CPU from high voltage in the input port
B. Optoisolators are used to protect CPU from a short circuit in the output port
C. Optoisolators are used to protect the input/output devices
D. Optoisolators are used to isolate the CPU from input/output ports - CORRECT ANSWER C.
Optoisolators are used to protect the input/output devices
Allen-Bradley industrial controllers are grouped as ____.
A. Programmable Logic Controllers
B. Programmable Automation Controllers
C. Safety Programmable Controllers
D. All of the above. - CORRECT ANSWER D. All of the above.
. Which of the following method(s) may be used to program PLCs?
A. Ladder Logic Diagram (LLD) programming
B. Function block programming
C. Text programming
D. All of the above. - CORRECT ANSWER D. All of the above.
Which of the following statements is false?
