Electronic Systems and Design - Quiz 1F
Electronic Systems and Design - Quiz 1F
Electronic Systems and Design - Quiz 1F
TEST I. MULTIPLE CHOICE. Select the best answer (letter only).Write the answers at the last page. (50%).
a.
b.
c.
d.
6. Which of the ladder logic symbol represents a relay coil?
a.
b.
c.
ELECTRONIC SYSTEMS AND DESIGN_QUIZ 1F
d.
7. The basic function of a PLC is to
a. Amplify various weak signal sources.
b. Accept inputs, make logical decision, and send outputs.
c. Control the speed of motor.
d. Convert non-electrical quantities into electrical voltage.
8. Identify the output device in PLC
a. Pump
b. Push button
c. Switch
d. Sensor
9. The basic difference between a PLC and a relay control system is that
a. Different types of inputs devices are used.
b. Different input and output levels are used.
c. Different types of output devices are used.
d. One uses relay control logic and the other uses programmed instructions.
10. From the figure below. If the inputs are push buttons and the output is a light, which of these
combinations will result in turning on the light?
a. Pressing A and B
b. Pressing C and B
c. Pressing A and D
d. Pressing A and C
TEST II. PLC ladder logic programming: Lighting Control System. (50%)
The PLC system will be controlled by four switches S1, S2, S3, and S4. These switches will control the
lighting in a room based on this following criteria:
1. Any of three of these switches (S1, S2, and S3) can turn ON or OFF the lighting.
2. The fourth switch S4 is a Master Control Switch. If the switch (S4) is ON the light is OFF, and
none of the other switches (S1, S2, and S3) have any control.
Requirement:
S1 100 1
S2 100 2
S3 100 3
S4 100 4
Y1 (Output) 200 1
Send this file to oscar.carandang@gmail.com along with the multisim file of Ladder Diagram.
TEST I.
1. B
2. D
3. C
4. B
5. A
6. C
7. B
8. A
9. D
10. D
TEST II.