LDR Sensor Online Exam Quiz
LDR Sensor GK Quiz. Question and Answers related to LDR Sensor. MCQ (Multiple Choice Questions with answers about LDR Sensor
Can the loop() function be used to call another function that is custom defined by the programmer?
Options
A : Yes, it can call
B : No, it cannot call
C : Yes, it can call but only functions with no return values
D : Yes, it can call but only functions with return values
Do LDR's respond to all wavelengths of light?
Options
A : Yes
B : No
C : -
D : -
How many times does the loop() function run on every startup of the Arduino System?
Options
A : 1
B : Depends upon the setup() function
C : Infinitely till the power is supplied to the Arduino
D : 3
How much time on an average does the LDR take for it's resistance to change when light is incident?
Options
A : 8 to 12 ms
B : 12 min
C : 30 s
D : 354 hr
If an LDR is connected to an LED and a battery and is brought from the dark to the light, what will be the state of the LED?
Options
A : Lit
B : Not lit
C : Damaged by voltage change
D : Damaged by power surge
Is the loop() function a replacement of the main() function in the Arduino Programming Environment?
Options
A : No, it is a replacement for the constructor
B : Yes, it is a replacement
C : Yes, but only for certain Arduino Boards
D : No, it is not a replacement
What kind of sensor is the LDR Sensor?
Options
A : Passive
B : Active
C : Radio
D : Pressure based
Which one of the following materials would be used for making an LDR?
Options
A : Lead Sulfide
B : Pure Aluminum
C : Iron Ore
D : Aluminum Oxide
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