Rain Alarm Circuit Quiz

Rain Alarm Circuit Quiz

5th Grade

5 Qs

quiz-placeholder

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Rain Alarm Circuit Quiz

Rain Alarm Circuit Quiz

Assessment

Quiz

Engineering

5th Grade

Easy

Created by

Arabinda Saha

Used 1+ times

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main purpose of a rain alarm circuit?

To detect smoke

To detect rainwater and trigger an alert

To measure temperature

To generate electricity

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when water touches the rain sensor in the circuit?

The resistance increases

The circuit remains off

The transistor turns on, activating the buzzer

The circuit becomes an open circuit

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when the zinc and copper electrodes are placed inside the potato?

The potato glows

A chemical reaction generates electricity

The potato becomes hard

The potato starts melting

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of transistor is commonly used in a rain alarm circuit?

MOSFET

PNP Transistor

NPN Transistor

SCR

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of a resistor in the rain alarm circuit?

To store electrical charge

To regulate current flow and protect components

To amplify the signal

To detect water levels

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