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 →
A vernier caliper is a precision measuring tool commonly used in workshops and laboratories primarily for what purpose?
AAccurately measuring small lengths, thicknesses, or diameters
BMeasuring atmospheric temperature
CMeasuring very large distances, such as between cities
DMeasuring the loudness of sound
Salt has long been used as a food preservative primarily because of what effect it has on food?
AIt draws out moisture and helps inhibit the growth of spoilage-causing bacteria
BIt permanently changes the food's chemical formula into a new substance
CIt adds significant color to food
DIt directly increases the food's nutritional vitamin content
Potassium permanganate, a distinctive dark purple crystalline compound, is commonly used for which practical purpose?
AAs a food coloring agent
BAs a disinfectant and in certain water treatment applications
CAs a natural sweetener
DAs a lubricant for machinery
Which scientist developed binomial nomenclature, the widely used two-part naming system for classifying and identifying living organisms?
AGregor Mendel
BCharles Darwin
CCarl Linnaeus
DLouis Pasteur
A spring balance is a simple instrument commonly used to measure what physical quantity?
ASound intensity
BElectrical resistance
CTemperature
DWeight, or force
High sugar content is traditionally used to help preserve foods like jams and fruit preserves primarily because of what effect?
AIt adds artificial coloring
BIt prevents the food from ever needing to be refrigerated
CIt permanently sterilizes the container it's stored in
DIt similarly draws out moisture, creating conditions that inhibit microbial growth
Magnesium metal is notable for burning with what distinctive characteristic, a property that leads to its use in flares and some fireworks?
AA flame that only burns underwater
BAn extremely bright white flame
CA very dim, barely visible flame
DA flame that produces no light at all
In binomial nomenclature, the standardized two-part scientific naming system for species, what two components typically make up an organism’s official scientific name?
AIts country of origin and its size
BIts discoverer's name and the discovery date
CIts genus and its specific species name
DIts common name and its color
For a simple pendulum swinging with a small angle, what factor primarily determines the time it takes to complete one full swing, known as its period?
AThe mass of the pendulum's bob
BThe color of the pendulum's string
CThe length of the pendulum
DThe exact material the bob is made from
Pickling, a traditional method used to preserve vegetables and other foods, typically relies on immersing food in what type of solution?
AA solution of liquid nitrogen
BA solution of pure sugar only
CPlain distilled water only
DAn acidic solution, commonly vinegar-based