4

In my opinion, it would not function as interrogation or alternative explanation.

Here is the sentence.

電源ボタンを押すと表示される電源メニューで「電源を切る」をタッチする、電源ボタンを電源ランプが消えるまで押し続けると、電源がOFFになります。

8

か means literally "or" in this instance.

It splits the sentence into the two options you have for turning off the device.

You can turn off the device by choosing from the menu, OR you can long press the button until the light turns off.

Also acceptable in its place would be 「又は」or「もしくは」but the latter seems more formal, so it wouldn't be used in (what I assume to be) a user manual. and 又は I believe is more commonly used at the beginning of the next sentence denoting a second choice that can be taken as opposed to being used in the middle of the same sentence.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.