Smoke detectors save thousands of lives every year. A fire can start in the most unexpected places, so it is important to be prepared. Take this smoke detector quiz to see how much you know about these life-saving tools.
Question 1 of 15
How many residential fires occur in the U.S. each year?
Question 2 of 15
Which of the following appliances are responsible for many fires?
Question 3 of 15
Which of the following is more likely to cause a fire?
Question 4 of 15
What sort of clothing should you wear when cooking?
Question 5 of 15
With a 1 in 300 chance that your house will catch fire, the importance of smoke detectors becomes obvious. How much do the cheapest smoke detectors cost?
Question 6 of 15
What sort of battery does a smoke detector need?
Question 7 of 15
Photoelectric and ionization detectors are the two most common types of smoke detectors. How does smoke trigger a photoelectric detector?
Question 8 of 15
Why does the light sensor in a smoke detector need to be at a 90 degree angle to the light beams?
Question 9 of 15
Which type of radioactive element is used in an ionization detector?
Question 10 of 15
How long is the half-life of americium?
Question 11 of 15
What is a curie?
Question 12 of 15
What type of nuclear radiation is emitted by americium-241?
Question 13 of 15
What do the alpha particles do to the oxygen and nitrogen atoms in the chamber of a smoke detector?
Question 14 of 15
In addition to a radioactive source, an ionization detector contains two plates with a battery-supplied voltage across them. What is attracted to the plate with negative voltage?
Question 15 of 15