General Science Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App
1. Which among the following is the correct location of Adrenal Glands in Human Body?
[A] Above kidneys
[B] Below kidneys
[C] Above Medulla Oblongata
[D] Near Pancreases
Show Answer
Correct Answer: A [Above kidneys]
Notes:
Each adrenal gland is located on the top of each kidney (forming a hat-like structure on the top of the kidneys). Each adrenal gland has two parts viz. outer cortical portion and inner adrenal cortex. Further, there is a central part called adrenal medulla.
2. Which of the following is a Gymnosperm?
[A] Cashew
[B] Chilgoza
[C] Pistachio
[D] None of the above
Show Answer
Correct Answer: B [Chilgoza]
Notes:
The gymnosperms, also known as Acrogymnospermae, are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. Pinus gerardiana, known as the chilgoza pine is a king of Gymnosperm.
3. Among typhoid, hysteria, measles & influenza which is / are not contagious disease(s)?
[A] Hysteria only
[B] Hysteria & Measles
[C] Hysteria, Typhoid & Measles
[D] All are contagious diseases
Show Answer
Correct Answer: A [Hysteria only]
Notes:
Among typhoid, hysteria, measles & influenza, only Hysteria is not a contagious disease. A contagious disease is a subset category of transmissible diseases, which are transmitted to other persons.
4. Which among the following causes ‘Dumdum Fever’ or Kala Azar?
[A] Bacteria
[B] Fungi
[C] protozoa
[D] Virus
Show Answer
Correct Answer: C [protozoa]
Notes:
Kala Azar is also known as Dum dum fever and Visceral leishmaniasis . Its caused by protozoa of Leishmania genus, vector is sandfly
5. With which of the following diseases Project Kavach is related to?
[A] Malaria
[B] Dengue
[C] AIDS
[D] Swineflu
Show Answer
Correct Answer: C [AIDS]
Notes:
Project Kavach is related to AIDS. The AIDS virus can be transmitted through contact with infected blood, semen or vaginal fluids. Within a few weeks of HIV infection, flu-like symptoms such as fever, sore throat and fatigue can occur.
6. Light year is a unit of which of these following?
[A] distance
[B] time
[C] pressure
[D] power
Show Answer
Correct Answer: A [ distance ]
Notes:
Light year is a unit of distance. One light year is the distance travelled by light in vacuum in one year. 1 light year = 9.46 x 1015 m velocity of light in vacuum = 3 x108 m/s
7. Power of lens is measured in which of the following units?
[A] metre
[B] dioptre
[C] lumen
[D] watt
Show Answer
Correct Answer: B [ dioptre ]
Notes:
Power of lens is measured in dioptre(D). Power of lens = 1/focal length The power of a lens is its ability to bend light. The greater the power the greater the refraction of light.
8. Two vectors are said to be equal if:
[A] they have equal magnitude and same direction
[B] they have equal magnitude and opposite direction
[C] they have equal magnitude and common initial point
[D] they have equal magnitude irrespective of the direction
Show Answer
Correct Answer: A [they have equal magnitude and same direction]
Notes:
Two vectors are said to be equal if they have equal magnitude and same direction. Two vectors are said to be co-initial if their initial point is common.
9. The minimum speed required to put a satellite into a given orbit around earth is known as:
[A] Escape velocity
[B] Orbital velocity
[C] Kinetic velocity
[D] None of the above
Show Answer
Correct Answer: B [Orbital velocity]
Notes:
The minimum speed required to put a satellite into a given orbit around earth is known as Orbital velocity of the satellite. Orbital velocity (v) = (GM/r)1/2 where G= gravitational constant, M= mass of the earth and r = radius of the orbit of the satellite.
10. What is the relation between the orbital velocity and the radius of the orbit for a given planet?
[A] greater the radius of orbit, lesser will be the orbital velocity
[B] greater the radius of orbit, greater will be the orbital velocity
[C] orbital velocity is independent of radius of orbit
[D] None of the above
Show Answer
Correct Answer: A [greater the radius of orbit, lesser will be the orbital velocity]
Notes:
For a given planet, greater the radius of orbit, lesser will be the orbital velocity of the satellite. The Orbital velocity depends on the mass of central body and radius of orbit.
