Murrelektronik Passive Distribution Systems & General Connectivity Quiz
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This quiz is geared towards developing a general understanding in regards to passive (or pass-through) wiring technology and how those devices connect to other field devices, specifically MAC valves and Murr passive distributors.
- 1.
Conventional wiring refers to the use of terminal strips and junction boxes. What is/are the common responses for continuing to use this wiring method?
- A.
We’ve always done it that way
- B.
We just don't like new technology that saves our company money
- C.
We like spending more time than necessary on our jobs
- D.
None the above
Correct Answer
A. We’ve always done it that wayExplanation
As Aaron Henry stated during our recent training session: "Murr's growth is in PASSIVE Technology!"
Make certain that you are engaging the right individuals at your Murr Passive target accounts. The guy you're talking to on the shop floor probably likes the "job security" of conventional (i.e. DISCRETE) wiring methods.Rate this question:
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- 2.
Certain MAC valves have a 2.4 watt coil that operates off of a regulated 24vdc power supply. How much current will this valve consume when energized?
- A.
It varies by PLC/controller manufacturer
- B.
0.225 Amps
- C.
0.5 Amps
- D.
0.1 Amp
Correct Answer
D. 0.1 AmpExplanation
The universal Power Law Formula allows us to always divide the Wattage of a device by its operating voltage to determine its current consumption, when energized. So 2.4 Watts divided by 24VDC equals 0.1 Amps.Rate this question:
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- 3.
The electrical terms voltage and current most closely relate to the following fluid power terms? Click here for a clue.
- A.
Voltage=Pressure and Current=Flow
- B.
Voltage=Bore and Current=PSI
- C.
Voltage=Cv and Current=Pressure
- D.
None of the above
Correct Answer
A. Voltage=Pressure and Current=FlowExplanation
A DC battery is analogous to a pump in a water circuit. A pump takes in water at low pressure and does work on it, ejecting it at high pressure. A battery takes in charge at low voltage, does work on it and ejects it at high voltage. And the Flow in a water circuit becomes similar the the Current in a DC circuit, moving from the high side back around to the low side where it repeats as long as the circuit is operable.Rate this question:
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- 4.
What does IDC stand for? For additional information click here.
- A.
Insulation Displacement Communications
- B.
Industrial Displacement Connectors
- C.
Insulation Displacement Connectors
- D.
Insulation Differential Connectors
Correct Answer
C. Insulation Displacement ConnectorsExplanation
An insulation displacement connector (IDC) is an electrical connector designed to be connected to the conductor(s) of an insulated wire or cable by a connection process which forces a selectively sharpened blades through the insulation, bypassing the need to strip the wire of insulation before connecting. IDC connectors achieve IP67 when properly installed.Rate this question:
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- 5.
True or False: Electrical components incapable of controlling current by means of another electrical signal are called passive devices.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
True. In addition to Murr’s M8 & M12 Passive Distributors, resistors, capacitors, inductors, transformers, and even diodes are all considered passive devices.Rate this question:
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- 6.
Which of the following statements are true of Murr's passive distribution systems?
- A.
May increase wiring errors of field devices
- B.
Can make installation and start-up more complicated
- C.
Likely to increase servicing times
- D.
None of the above
Correct Answer
D. None of the aboveExplanation
The only real downside may be the initial component cost, but not always depending upon the application. But this is significantly offset by the reduction in man hours to install, maintain and troubleshoot.
Remember: people don't know what they want until you show it to them. Many are still unfamiliar with Technology such as Murr's Passive Distributors because they have never seen anything quite like it.Rate this question:
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- 7.
Murr’s passive distribution systems are available with which of the following cables and/or connections? Click here and here for help.
- A.
Pre-wired homerun cables
- B.
Pluggable homerun cables
- C.
Pluggable rear connections
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
In addition to pre-wired and pluggable connector cables, Murr also offers wide variety of MVP12 devices with rear, or bottom-side terminal connections for mounting on the outside of an enclosure and terminating connections through a knockout in the enclosure panel.Rate this question:
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- 8.
What is the maximum number of field device connections on a Murr passive distributor? Click here for help.
- A.
4
- B.
6
- C.
8
- D.
10
Correct Answer
D. 10Explanation
While Murr’s M12 distribution systems are available up to 8-way, the Exact8 (M8) distribution systems are available up to 10-way.Rate this question:
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- 9.
On Murr’s MVP12-M series of distributors, what does the last M stands for? Click here for help.
- A.
Made in Germany
- B.
Modbus
- C.
Modular
- D.
Metal
- E.
All of the above
Correct Answer
D. MetalExplanation
The MVP12-M series of extremely robust distributors are made of totally encapsulated Metal construction for particularly tough environments.Rate this question:
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- 10.
True or False: The gained reliability and efficiencies on the machine build side are the main goal of passive wiring, making it an ideal "next step" for machine builders interested in reducing labor costs and time for final assembly on a machine without a complete re-design.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
In a passive wiring scheme the main focus is on creating connections using pre-terminated cables and devices that can receive/transfer signals. Wiring in your main control cabinet will likely remain exactly the same with the improvements being made to the machine mount devices. Main control cabinet wiring in this method is usually unchanged. Discreet wiring is often employed for final wire termination to the relays or I/O cards.Rate this question:
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- 11.
Murr's IDC technology is comprised of which of the following components? Click here for help and select all that apply
- A.
Strain Relief
- B.
Connector Termination
- C.
Sealing Nut
- D.
Contact Carrier
Correct Answer(s)
A. Strain Relief
B. Connector Termination
C. Sealing Nut
D. Contact CarrierExplanation
Murr's IDC technology is comprised of four components: strain relief, connector termination, sealing nut, and contact carrier. These components work together to ensure a secure and reliable connection in the IDC technology. The strain relief helps to protect the connection from excessive stress or strain. The connector termination is responsible for connecting the wires to the IDC technology. The sealing nut provides a tight seal to prevent any moisture or dirt from entering the connection. Lastly, the contact carrier holds the contacts in place, ensuring proper contact between the wires and the IDC technology.Rate this question:
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- 12.
Which of the following Murr Valve Plugs are available to connect to MAC (and other brands of) valves? Click here for help and select all that apply.
- A.
Form A (18 mm)
- B.
Form B (10 mm)
- C.
Form BI (11 mm)
- D.
Form C (8 mm)
- E.
Form CI (9.4 mm)
Correct Answer(s)
A. Form A (18 mm)
B. Form B (10 mm)
C. Form BI (11 mm)
D. Form C (8 mm)
E. Form CI (9.4 mm) -
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Current Version
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May 09, 2023Quiz Edited by
ProProfs Editorial Team -
Jul 16, 2012Quiz Created by
Apcompany
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