I have a hard wired smoke alarm that is beeping 1x every 30 seconds. I removed the cover and looked for a battery and could not find anywhere for a battery to be placed.just the wires that the detector is attached to. I have lived in this house for 7 years and this is the 1st time it has chirped. I tried to test/hush it by pressing the test/hush button on the cover.and it is still beeping. I also reset power to the house and no luck. Am I missing something here? Any suggestions?
This is just my opinion, but as far as usage, tubing must be used in every case where O.D. dimension is important.That's why it's used in boilers and heat exchangers, because it must be inserted into the vessel through a hole, and so that dimension is important. The fittings used to join tubing are pretty limited. Above 1 diameter, pipe is almost always used for fluid transfer, because fittings (elbows and tees and stuff) must be used. At 1/8 to 1/2 diameter, you can use either to transfer material, but tubing gets a lot easier to work with as you go down in size.
if there was a fire, he won't be expelled. however if he did it as a prank, there's a good chance he'll be suspended depending on how strict your school is.
