MULTIPLE CHOICE 1. The component of a PLC that interfaces between input field devices such as pushbuttons, limit switches, selector switches, and the like and the CPU is the ____. a. PLC rack b. input module c. output module d. power supply 2. The component of a PLC that interfaces between output field devices such as relays, motor starters, annunciators, and the like and the CPU is ____. a. PLC rack b. output module c. input module d. power supply 3. If you needed to connect a 4–20 mA pressure sensor to a PLC, you would use a(n) ____. a. analog input module b. analog output module c. digital input module d. digital output module 4. What precaution should be observed when wiring an emergency stop pushbutton to a PLC? a. It should be wired normally closed and programmed normally open. b. It should be wired normally open and programmed normally closed. c. Emergency stop pushbuttons should be hard-wired and, therefore, should not be wired to an input module. d. It should be wired normally closed and programmed normally closed.
Added by Dolores S.
Close
Step 1
"The component of a PLC that interfaces between input field devices such as pushbuttons, limit switches, selector switches, and the like and the CPU is the ____." Step 2: Identify the correct answer from the options provided. a. PLC rack b. input module c. output Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 56 other Physics 102 Electricity and Magnetism educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
Design a PLC program and prepare a typical I/O connection diagram and ladder logic program for the following motor control specifications: Three starters are to be wired so that each starter is operated from its own start/stop pushbutton station. A master stop station is to be included that will trip out all starters when pushed. Overload relay contacts are to be programmed so that an overload on any one of the starters will automatically drop all of the starters. All pushbuttons are to be wired using one set of NO contacts.
Adi S.
Choose the correct option. 1. When operated in cutoff and saturation, the transistor acts like a a) linear amplifier b) switch c) variable capacitor d) variable resistor 2. A circuit contains two unequal resistances in parallel a) current is same in both b) large current flows in larger resistor c) potential difference across each is same d) smaller resistance has smaller conductance 3. Which of the following is true for a bipolar junction transistor a) IB is controlled by RB b) IB is controlled by VBB c) VCE is controlled by IB d) IC is controlled by IB e) All of the above 4. Which of the following are made of transistors a) Integrated Circuits (ICs) b) Microprocessors c) Logic Gates d) All of the above 5. Multisim is used for a) Programming b) Inserting multiple sims into a software c) Constructing real-world circuits in a software environment d) all of the above 6. In cutoff, VCE is equal to a) 0 b) Minimum c) VCC d) VBB 7. Which characteristic of a transistor is utilized in modern digital systems functionality a) Amplification b) Switching c) Rectification d) Biasing 8. In saturation, VCE is equal to a) 0 b) Minimum c) VCC d) VBB 9. When one leg of a parallel circuit is opened, the total current will a) reduce b) increase c) decrease d) become zero 10. In Uni-train based labs, how many signals can we observe as input to an oscilloscope? a) 1 b) 2 c) 3 d) 4 11. In the case of an open circuit, __________ current will flow in the circuit a) zero b) very low c) Normal d) Infinite 12. The bypass capacitor is connected with a transistor to a) Remove DC b) Bypassing AC to reduce noise c) Both of the above d) None of the above 13. The word "Bias" is used in electronics for a) the amount of current across a diode b) a DC voltage is applied to control the operation of a device c) the ratio of majority carriers to minority carriers d) None of the above 14. A Zener diode cannot operate in the forward biased region a) True b) False 15. The Beta of a transistor is its a) current gain b) voltage gain c) power gain d) internal resistance 16. In many cases, a short circuit at houses/industry is a cause of fire. Short circuits are responsible for fire because of a) high voltage b) high current c) high resistance d) All of the above 17. The resistance of a 100 W, 200 V lamp is a) 100 ohm b) 200 ohm c) 400 ohm d) 1600 ohm
Cyra Jelle C.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD