Everyday Science
Everyday Science MCQs With Answers
741 Everyday Science MCQs for CSS, PPSC, FPSC, NTS and entry-test preparation. Take a scored quiz instead →
What device combines the functions of measuring voltage, current, and resistance into a single instrument, widely used by electricians and technicians?
AAnemometer
BBarometer
CMultimeter
DSeismograph
Antacid tablets, commonly used to relieve heartburn and indigestion, work by doing what to excess stomach acid?
ANeutralizing excess stomach acid using a mild base
BIncreasing the acidity of the stomach further
CPhysically absorbing all liquid in the stomach
DConverting stomach acid directly into water only
An air conditioner cools a room using a cooling cycle that is fundamentally most similar to which other common household appliance?
AA refrigerator
BA vacuum cleaner
CA toaster
DA washing machine
A kaleidoscope, a popular toy that produces colorful, symmetrical patterns when rotated, relies primarily on which optical principle?
AAbsorption of light by colored filters only
BReflection of light off multiple angled mirrors, creating repeating patterns
CDiffraction through a narrow slit only
DRefraction of light through a single large lens
Traditional lead-acid car batteries, still commonly used to start vehicle engines, rely on which acid as their electrolyte?
AAcetic acid
BSulfuric acid
CNitric acid
DHydrochloric acid
Why does food generally cook faster in a pressure cooker compared to an ordinary open pot?
ABecause a pressure cooker uses significantly more electricity
BBecause pressure cookers always use higher flame settings
CBecause trapped steam increases internal pressure, which raises the boiling point of water and cooking temperature
DBecause a pressure cooker removes oxygen from the food
The periodic table, which organizes all known chemical elements, is primarily arranged in order of increasing what property?
AMelting point
BAtomic number
CDiscovery date
DAlphabetical order of element names
Ethylene, a naturally occurring plant hormone in gas form, is commonly used commercially for what agricultural purpose?
ATo kill weeds permanently
BTo help fruits like bananas ripen more quickly
CTo fertilize soil directly
DTo preserve fruit indefinitely without ripening
What is the SI unit used to measure temperature in scientific contexts?
ACelsius
BKelvin
CJoule
DFahrenheit
What is the SI unit used to measure the frequency of a wave, such as sound or radio signals?
AHertz
BAmpere
CNewton
DDecibel