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 (595)
Current Affairs (1696)
English (1530)
Everyday Science (741)
General Knowledge (1134)
Islamic Studies (1113)
Mathematics (1624)
Pakistan Studies (941)
What is the primary function of the tiny blood vessels called capillaries?
AProducing new red blood cells
BPumping blood at high pressure
CAllowing the exchange of oxygen, nutrients, and waste between blood and body tissues
DStoring large reserves of blood
Besides providing a concentrated source of stored energy, what other important function do dietary fats serve in the body?
AProviding insulation and protecting internal organs
BProducing red blood cells
CRegulating heart rhythm directly
DDirectly transmitting nerve signals
How does a vacuum flask, commonly called a thermos, keep drinks hot or cold for extended periods?
ABy actively heating or cooling the liquid inside
BBy adding chemical coolants
CBy using a sealed vacuum layer that greatly reduces heat transfer
DBy constantly stirring the liquid
In chemistry, what term describes the combining capacity of an element, or how many bonds it can typically form?
ADensity
BValency
CSolubility
DMolarity
What process, involving heating rubber with sulfur, was developed to make natural rubber more durable and elastic?
ASaponification
BVulcanization
CFermentation
DElectrolysis
What is a primary function of the large intestine in the digestive process?
AAbsorbing the majority of nutrients from food
BAbsorbing water from remaining digested material and forming solid waste
CBreaking down proteins with strong acid
DProducing insulin
What causes the buildup of static electricity, such as when a balloon sticks to hair after rubbing?
ASudden temperature change
BTransfer of electric charge between surfaces through friction
CA chemical reaction between materials
DAbsorption of light energy
Which of the following is a typical physical property of most metals?
ABrittle and poor conductors of electricity
BMalleable, ductile, and good conductors of electricity
CAlways gases at room temperature
DAlways transparent
What is the main raw material used to manufacture ordinary glass?
AClay
BSalt
CSilica, or sand
DLimestone
Which digestive enzyme, found in saliva, begins breaking down starch in the mouth?
ALipase
BTrypsin
CAmylase
DPepsin