Question 11

Order the tasks needed to safely replace a lamp's light bulb: Turn lamp off, Unscrew broken bulb, Screw in working bulb, Turn lamp on.

To safely replace a lamp's light bulb, the tasks should be performed in the following order: first, turn the lamp off to eliminate any risk of electric shock; second, unscrew the broken bulb; third, screw in the working bulb; and finally, turn the lamp on.

A) Turn lamp off.

This is the first and crucial step in the process. Turning the lamp off ensures that no electricity is flowing to the bulb, thereby reducing the risk of electric shock while handling the bulb.

B) Turn lamp on.

This option is incorrect as the lamp should not be turned on until after the new bulb is securely in place. Turning the lamp on before replacing the bulb poses a danger of electric shock and could lead to injury.

C) Screw in working bulb.

This step is the third in the sequence. After the broken bulb has been safely removed, the new bulb should be securely screwed in. Doing this before turning the lamp on ensures safety and proper functionality.

D) Unscrew broken bulb.

This step follows turning off the lamp and is the second action to be taken. Removing the broken bulb is necessary before installing the new one, and it must be done with the lamp powered off to ensure safety.

Conclusion

The correct sequence of actions is critical for safely replacing a lamp's light bulb. By turning off the lamp first, then unscrewing the broken bulb, followed by installing the new bulb, and finally turning the lamp back on, one ensures both safety and proper function. Other options, such as turning the lamp on before completing the replacement, would compromise safety and are, therefore, incorrect.