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Quiz about Plug it in but only if you have GFCI
Quiz about Plug it in but only if you have GFCI

Plug it in, but only if you have GFCI! Quiz


How well do you know your appliances? Here's looking into everyday gadgets - hairdryers, toasters, vacuum cleaners, etc. After taking this quiz, you may give a pause the next time you plug one in!

A multiple-choice quiz by swetha_sk. Estimated time: 4 mins.
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Author
swetha_sk
Time
4 mins
Type
Multiple Choice
Quiz #
321,229
Updated
Jan 19 24
# Qns
10
Difficulty
Average
Avg Score
8 / 10
Plays
591
Awards
Top 35% Quiz
Last 3 plays: Guest 15 (7/10), mickeyp (10/10), Mpproch (10/10).
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Question 1 of 10
1. In the movie "What Women Want", Mel Gibson gets electrocuted from a hair dryer falling in the bath tub. How could he have prevented it? Hint


Question 2 of 10
2. Where would you find a magnetron in a house? Hint


Question 3 of 10
3. A light dimmer switch can be a useful appliance. You could be in the same room and change your lighting output to suit the activity you are doing - reading, having a romantic dinner or watching TV. Which of these components inside the circuit controls the brightness when you turn the dimmer knob? Hint


Question 4 of 10
4. What is the difference between a window AC (air conditioning) unit and a split AC unit? Hint


Question 5 of 10
5. What type of cooktop heats food more evenly by turning the cookware into the source of the heat? Hint


Question 6 of 10
6. Why can't you use Aluminium or copper pots on an induction cooktop? Hint


Question 7 of 10
7. Manufacturers typically indicate blender motor power in watts. The majority of household models fall within 500 to 750 watts. What does the wattage number on the blender motor measure? Hint


Question 8 of 10
8. How does the ice in a refrigerator ice maker break free of the mold and come cascading down into your glass? Hint


Question 9 of 10
9. This kitchen appliance has a timer and a heating element. When it was first introduced in 1926, the advertisements promised it would deliver "every time - without watching, without turning, without burning." What was that appliance? Hint


Question 10 of 10
10. Pressing a button on most modern remote control units transmits which beam of rays to the TV? Hint



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Most Recent Scores
Mar 25 2024 : Guest 15: 7/10
Mar 25 2024 : mickeyp: 10/10
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Mar 13 2024 : Guest 34: 1/10
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Score Distribution

quiz
Quiz Answer Key and Fun Facts
1. In the movie "What Women Want", Mel Gibson gets electrocuted from a hair dryer falling in the bath tub. How could he have prevented it?

Answer: by installing GFCI (Ground Fault Circuit Interrupter) either in the home outlet or in the hair dryer

Since 1991, the US Consumer Product Safety Commission requires that hair dryers have GFCI's installed internally in their circuitry. However, even if the dryer unit does not have GFCI, installing one in the home outlet can prevent severe shocks. If the GFCI senses any loss of current, it immediately switches off power to that circuit. Switching off the device itself is not sufficient to protect from electric shock when it comes into water if the switch is located on the device.
2. Where would you find a magnetron in a house?

Answer: in a microwave oven

Magnetrons were used in World War II to detect enemy ships. Dr. Percy Spencer, an engineer with Raytheon Corporation, was testing a magnetron for defense research when he discovered that the candy bar in his pocket melted. This intrigued him and led him to experiment with popcorn, eggs, etc till he concluded that microwaves emitted by a magnetron can be used to heat food.
3. A light dimmer switch can be a useful appliance. You could be in the same room and change your lighting output to suit the activity you are doing - reading, having a romantic dinner or watching TV. Which of these components inside the circuit controls the brightness when you turn the dimmer knob?

Answer: variable resistor

A resistor used in a circuit causes a voltage drop. In a dimmer, however, this variable resistor is not directly placed on the lamp's circuit (it would get too hot and waste energy) but rather only controls a triac or thyristor performing the actual dimming.
4. What is the difference between a window AC (air conditioning) unit and a split AC unit?

Answer: all of these

The window AC and split AC systems are very similar in their internal workings. Window type air conditioners are small enough to fit in a window, whereas the split-type ACs have the hot and cold sections separated into different units (hence their name).
5. What type of cooktop heats food more evenly by turning the cookware into the source of the heat?

Answer: induction cooktop

In an induction cooktop, heat is induced into the cookware by an electromagnetic field. This electromagnetic field passes through the cookware, and by its oscillation, induces heat throughout the vessel. For this reason, you can use induction heat to heat an entire pan uniformly and not just its bottom.
6. Why can't you use Aluminium or copper pots on an induction cooktop?

Answer: because they are not magnetic, unlike iron or steel

In an induction cooktop, electromagnetic field passes through the cookware. The electromagnetic oscillations in turn produce heat. For this process to occur, the cookware has to be magnetic (e.g. iron, stainless steel).
7. Manufacturers typically indicate blender motor power in watts. The majority of household models fall within 500 to 750 watts. What does the wattage number on the blender motor measure?

Answer: power consumed by the blender motor

High wattage blenders, although expensive, are not necessarily better than low wattage blenders. The wattage number displayed by the manufacturer only measures the power consumed by the blender motor. A true indicator of performance is the power generated by the motor, which conveniently, the manufacturers do not display.
8. How does the ice in a refrigerator ice maker break free of the mold and come cascading down into your glass?

Answer: a heating coil loosens the ice cubes from the mold surface

A heating coil runs under the ice mold. As the coil heats up, it warms the mold thereby loosening the ice cubes from their mold surface. I made up the other options listed.
9. This kitchen appliance has a timer and a heating element. When it was first introduced in 1926, the advertisements promised it would deliver "every time - without watching, without turning, without burning." What was that appliance?

Answer: pop-up toaster

Before the pop-up toaster was invented, a slice of bread had to be turned by hand to toast both sides, which could result in a non-uniform toast. The automatic pop-up toaster was such a success that 500,000 units were sold within a few years.
10. Pressing a button on most modern remote control units transmits which beam of rays to the TV?

Answer: infrared rays

Infrared rays exist between microwaves and visible light in the electromagnetic spectrum. The infrared rays emitted by a remote control unit are closer to the visible rays in wavelength and cannot pass through walls (unlike radio waves). This is why you need to sit in front of and point directly at the TV to operate the remote.
Source: Author swetha_sk

This quiz was reviewed by FunTrivia editor crisw before going online.
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