Job sheet 9
Name
Date
Use a Wiring Diagram
Upon completion of this job sheet, you will be able to find the power source, ground connection,
and controls for electrical circuits using a wiring diagram.
Exercise 1
Using the diagram in Figure 4-35, answer the following:
1. How is the circuit powered?
2. How is the circuit grounded:
3. How is the circuit controlled?
A. if it is controlled by a switch, is the switch normally opened or closed?
B. is the circuit power switched or ground switched?
C. Is the circuit controlled by a variable resistor?
D. Is the circuit controlled by a mechanical or vacuum operated device?
4. How is the circuit protected?
Exercise 2
Using the wiring diagram in Figure 4-36, answer the following:
1. How is the circuit powered?
2. How is the circuit grounded?
3. How is the circuit controlled?
A.
B.
C.
D.
if it is controlled by a switch, is the switch normally open or closed?
is the circuit power switched or ground switched?
Is the circuit controlled by a variable resistor?
Is the circuit controlled by a mechanical or vacuum operated device?
4. How is the circuit protected?
Exercise 3
Using the wiring diagram in Figure 4-37, answer the following:
1. How is the circuit powered?
2. How is the circuit grounded?
3. How is the circuit controlled?
A. if it is controlled by a switch, is the switch normally open or closed?
B. is the circuit power switched or ground switched?
C. Is the circuit controlled by a variable resistor?
D. Is the circuit controlled by a mechanical or vacuum operated device?
4. How is the circuit protected?
Exercise 4
Using the wiring diagram in Figure 4-38, answer the following:
1. How is the circuit powered?
2. How is the circuit grounded?
3. How is the circuit controlled?
A. if it is controlled by a switch, is the switch normally open or closed?
B. is the circuit power switched or ground switched?
C. Is the circuit controlled by a variable resistor?
D. Is the circuit controlled by a mechanical or vacuum operated device?
4. How is the circuit protected?
Exercise 5
Using the wiring diagram in figure 4-39, answer the following:
1. How is the circuit powered?
2. How is the circuit powered?
3. How is the circuit controlled?
A. if it is controlled by a switch, is the switch normally open or closed?
B. is the circuit power switched or ground switched?
C. Is the circuit controlled by a variable resistor?
D. Is the circuit controlled by a mechanical or vacuum operated device?
4. How is the circuit protected?