Main Subjects
Main Subjects MCQs With Answers
0 Main Subjects MCQs for CSS, PPSC, FPSC, NTS and entry-test preparation. Take a scored quiz instead →
Computer (406)
Current Affairs (1218)
English (1391)
Everyday Science (687)
General Knowledge (681)
Islamic Studies (850)
Mathematics (1392)
Pakistan Studies (811)
Trans fats, a type of fat linked to an increased risk of heart disease, are typically formed through which industrial process?
ADistillation
BFermentation
CHydrogenation of liquid vegetable oils
DElectrolysis
Argon, an inert noble gas, is commonly used to fill certain types of incandescent light bulbs for what practical purpose?
ATo make the glass bulb itself unbreakable
BTo help prevent the hot filament inside from oxidizing and burning out prematurely
CTo make the bulb glow a bright green color
DTo significantly increase the bulb's overall brightness
The traditional five-kingdom system of biological classification generally includes Animalia, Plantae, Fungi, Protista, and which other kingdom?
AMineral kingdom
BVirus kingdom
CMonera, comprising bacteria and similar simple organisms
DInsect kingdom
Which scientist is widely credited as a pioneer of electromagnetic induction, the principle underlying how generators and transformers work?
AGregor Mendel
BMichael Faraday
CCharles Darwin
DIsaac Newton
What is the general term for the industrial process of adding hydrogen to a liquid vegetable oil to convert it into a more solid fat, such as in margarine production?
AHydrogenation
BSaponification
CDistillation
DFermentation
Nitrous oxide, sometimes informally referred to as laughing gas, has historically been used in medical and dental settings for what purpose?
AAs a mild anesthetic to help reduce pain and anxiety
BAs a blood pressure medication
CAs a primary treatment for infections
DAs a strong antibiotic
Which kingdom of living organisms includes yeasts, molds, and mushrooms, many of which play an important role in decomposing organic matter?
APlantae
BAnimalia
CFungi
DProtista only
Which inventor and engineer is most closely associated with significantly improving the efficiency of the steam engine, with the unit of power ultimately named in his honor?
ANikola Tesla
BThomas Edison
CJames Watt
DAlexander Graham Bell
What term describes a substance, such as lecithin, that helps combine two liquids that would not normally mix well, like oil and water, into a stable, uniform mixture?
ASolvent
BEmulsifier
CPreservative only
DCatalyst
Formic acid, a chemical compound naturally found in the stings of ants and certain other insects, is primarily responsible for what effect on the skin?
AA distinct sweet taste
BA pleasant cooling sensation
CThe burning, stinging sensation associated with certain insect stings and bites
DImmediate numbness with no other sensation