To operate a DC load incorporating the use of proximity sensor and timer

Post Test

Q1. What occurs in the circuit when the proximity sensor detects an object and activates the timer?

a. The circuit immediately resets

b. The DC load is turned off

c. The timer starts and the DC load is activated after a delay

d. The proximity sensor sends a continuous signal to the load

Q2. What is the primary benefit of using a timer circuit in conjunction with a proximity sensor in a DC load circuit?

a. It allows for controlled operation timing of the DC load

b. It enhances the detection range of the sensor

c. It reduces power consumption

d. It provides continuous power supply to the load

Q3. What kind of output signal does a 555 Timer IC typically provide in monostable mode?

a. Continuous square wave

b. Single pulse of a defined duration

c. Constant DC voltage

d. Sine wave

Q4. What is the role of a relay in the circuit when a proximity sensor and timer are used to control a DC load?

a. It amplifies the signal from the proximity sensor

b. It filters the noise from the power supply

c. It provides additional power to the sensor

d. It isolates the low-power control circuit from the high-power load

Q5. How can you increase the detection range of an inductive proximity sensor?

a. By increasing the voltage supply to the sensor

b. By using a larger sensor

c. By adjusting the sensor's internal settings, if available

d. By adding more sensors in series

Lab contributed by Jodhpur Institute of Engineering & Technology