What is the answer to the light switch riddle?

Here it is: Open the door. If the light is on, then switch number 2 controls it. If the light is off, then go and feel the bulb with your hand. If the bulb is hot, then switch number 1 controls it, and if the bulb is cold, then switch number 3, the one you did not touch, controls it.

How do you make a dome light turn on when the door opens?

Inspect the dome light switch in front of the dome light fixture. Most dome lights have three settings: “Off,” “On” and “Door.” If the “Door” option is selected, the dome light will turn on only when the door is opened. Flip the switch to “Door,” and then open the door to test the dome light.

What does the dome override button do?

When you click the dome override button the lights wont turn on whether or not you open the doors or not.. Also, if you click it twice (in,out,in,out) it will turn off your automatic headlights as well (until you click it twice again, or restart the truck).

What always was yet I can never be?

Riddle: What always was, yet I can never be? Answer: Yesterday.

Do you need a light switch for a stairway?

Stairway Lighting is Required, with light switches at top and bottom of the stairway if the stairs encompass more than three stair treads (Canada) or six stair treads (U.S.). Our photo shows an exterior light at an open stairwell to a second floor apartment.

Where can I get motion activated stair lights?

When it comes to upgrading your stair lighting to motion activation, the most popular method is using individual lights that you can buy and install yourself. These are smaller, more affordable lights that often are mounted on the wall via a sticky pad or small mounting kit.

Is there an exception for automatic stair lighting?

There is an exception stating that “remote, central, or automatic control” of stairway lighting shall be permitted, in lieu of the required switches. Of course, such permission in the exception is subject to further restrictions by other codes (e.g., building code or life safety code). – NH Fire Bear by private email .

How does an automatic door light switch work?

This automatic door light switch circuit turns ON a lamp when a door is opened then turns it OFF when the door is opened again. The working principle of the light switch is quite simple. The bistables inside CMOS 4013 are conected in series.

Where is the override switch on an automatic step?

The magnetic switch is located in the lower portion of the door frame and is triggered when a magnet in the door passes in front of it. If the magnet in the door is not perfectly aligned with the switch in the door frame when the door is closed the step won’t activate. Switch #2 (override switch).

Where are the lighting outlets on a stairway?

“Where one or more lighting outlet (s) are installed for interior stairways, there shall be a wall switch at each floor level, and landing level that includes an entryway, to control the lighting outlet (s) where the stairway between floor levels has six risers or more.” Same as 2000 edition.