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Question:

I have hard wired smoke detectors in a 1.5 story house. None are working.?

They also have a separate fuse in main fuse box. I have tried throwing the switch (it was not tripped). In addition, although they did not go out simultaneously, two of the three bedroom ceiling fixtures are not working in addition to my upstairs furnace. As I said, they all didn't go out at once, but it sure seems like an electrical problem. Does anyone have any suggestions on things I can check for process of illumination? Any help would be very much appreciated.

Answer:

It depends on what laboratory apparatus/equipment you're working withI guess you read manuals first before proceeding the work
They will not really be of help in the snow, no better than snow tires. They will help on ice but really if they are needed for ice than all four wheels should have studs. Plus they are awful on clear pavement as they reduce the amount of rubber on the road so the traction is decreased. They are really hard on the roads, too. I remember when they first came to market years ago. A lot of people bought them but only once as their disadvantages out weights their advantages. Also state laws limit their use. By the way, the tires are not manufactured with studs, the studs are inserted by the tire seller using the holes molded in the tread. Also don't get used tires studded as the holes have small pieces of dirt and rock in them and the stud will apply force which will penetrate the tire resulting in flats. I chose tire chains as they work much better and only when needed.
Studded tires are mostly for ice not snow most studded tires are snow tires with studs. as for burnouts and such yes you will rip the studs out of the tires but it is your call

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