Energy Module 3 Quiz | OceanRemote Education

1 What does WiFi.setSleep(true) do?

A) Enables modem sleep B) Disables WiFi C) Increases power D) Speeds up connection

2 How much current does a DHT22 draw when idle?

A) 2mA B) 0.3mA (300μA) C) 20mA D) 100μA

3 Why power sensors through a MOSFET?

A) Increase accuracy B) Speed up reading C) Turn off completely when idle D) Reduce voltage

4 What is the dropout voltage of AMS1117?

A) 1.1V B) 0.1V C) 0.5V D) 2V

5 What is the quiescent current of AMS1117?

A) 100μA B) 5-10mA C) 1mA D) 50μA

6 Why use MCP1700 instead of AMS1117?

A) Higher current B) Lower dropout C) Cheaper D) Low quiescent current (1.6μA)

7 What is a voltage divider used for?

A) Increase voltage B) Reduce voltage C) Filter noise D) Store energy