BBSS DT Electronics - All

Which of the following battery is suitable to be used for a thermometer?

• AA size battery

• AAA size battery

• Button Cell Battery

• C Size battery

Which of the following statement is CORRECT about batteries in series connection?

• If two batteries are connected in series, the total voltage is unchanged.

• If two batteries are connected in series, the total voltage is the sum of the individual voltages.

Electric current is measured in Amperes?

• True

• False

Choose the correct symbol for this component!

• 
• 
• 
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WHat is the name of the switch shown above?

• Single pole Single throw switch

• Single pole Double throw switch

• Double pole Double throw switch

Name the switch

• membrane panel switch

• micro switch

• rocker switch

• slide switch

Which of the following describe how a tilt switch work?

• When the switch is tilted, the contact will close.

• It is used with a magnet. As the magnet is brought near the switch, it causes the contact to open or close.

• When the switch is at an upright position, the contact closes.

Which of the following is NOT correct about a LED?

• It uses a lot of electricity.

• It is available in many colour.

• It will be damaged easily when connected directly to a battery.

• There are ultra bright LED available.

Which of the following component has polarity?

• resisitor

• non-electrolytic capacitor

• diode

What is the value of a resistor with the colour code: Red, Orange, Green?

• 234 ohms

• 20004 ohms

• 230000 ohms