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MOtor control 9

control diagrams and drawings

QuestionAnswer
1. Which types of motor control drawings show the physical location of components in a circuit wiring diagram and pictorial diagram
2. What does the dashed rectangle in the following diagram tell you about the circuit same enclosure
3. Schematic diagrams do not show the physical ___ or the physical ___ of components in a circuit size, location
4. DRaw and label both NEMA AND IEC schematic diagrams for the drum heater circuit shown in the text fig 8-1(c) page 40
5. What voltage is supplied to distribution center MSB1 in this building 480/277 V
6. There are ___ circuit breakers which directly connect to the utility service transformers 2
7. What is the current rating for the circuit breaker used to tie the MSB1 and MSB2 distribution centers together 2000 amps
8. What is the total connected motor horsepower on distribution center MSB2 450
9. Which of the following drawing types does not show the physical relationship between the various components in a motor control drawing ladder diagram
10. What is the most widely used type of drawing for control circuit analysis ladder diagram
11. EAch horizontal line in a ladder diagram is identified as a _____ rung
12.Identify eadh of the line types indicated by numbers 1,2,3 on page 41 power rail, control rail, rung
13. In a ladder diagram, pilot devices are placed on the ___ and output deices are placed on the ___ left, right
14. What is the maximum number of output device which are permitted in a single rung one
15. Draw a two-wire control circuit using a NO pressure switch to start and stop a motor page 41
16. Draw a three-wire control circuit to start and stop a motor pg 42
17. Number the following ladder diagram to identify wire numbers for this cuicuit pag 42
18 look at page 43
Created by: JoshHampton
 

 



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