General Science - Online Test
Q1. Embryonal axis has the radicle and root cap enclosed in an undifferentiated sheath is known as
Answer : Option B
Explaination / Solution:
In monocotyledonous seeds embryonal axis has undifferentiated sheath that covers radicle and root cap is called coleorhiza.
Q2. “In Competition, the superior competitor eliminates the inferior one”, this statement is called:
Answer : Option B
Explaination / Solution:
In competition, superior competitor eliminates the inferior one. This statement is called Gause’s competitive exclusion principle. Two closely related competing for same resources cannot co-exist indefinitely and inferior will be eliminated.
Q3. Mineral absorption into the plant is always against the concentration gradient and use ATP as source of energy, it is an/ a
Answer : Option D
Explaination / Solution:
Mineral absorption into the plant is always against the concentration gradient and use ATP molecules as source of energy is an active process. As concentration of minerals are always higher in cell than soil.
Q4. Which layer of alimentary canal forms crypts in between the base of villi?
Answer : Option C
Explaination / Solution:
Mucosa forms gastric glands in the stomach and crypts in between the bases of villi in the intestine (crypts of Lieberkuhn).
Q5. The study of jute industry is a macroeconomic study. This statement is
Answer : Option B
Explaination / Solution:
Micro economics deals with determination of prices and quantities in individual markerts and with the relationship among these markets.
Q6. Farsighted or hypermetropic eye can be corrected by
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. AIDS day is
Answer : Option B
Explaination / Solution:
World AIDS Day, designated on 1 December every year since 1988, is dedicated to raising awareness of the AIDS pandemic caused by the spread of HIV infection, and mourning those who have died of the disease.
Q8. Due to the presence of electrons in the inner shells, the electron in the outer shell will not experience the full positive charge of the nucleus (Ze). This is known as
Answer : Option A
Explaination / Solution:
Shielding effect can be defined as a reduction in the effective nuclear charge on the electron cloud, due to a difference in the attraction forces of the electrons on the nucleus. It is also referred to as the screening effect (or) atomic shielding.
Q9. Which of the following have been able to check the rapid growth of population?
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. 25.0 μF capacitor is connected to a 220 V, 50 Hz source. Capacitive reactance and the current (rms) in the capacitor are circuit
Answer : Option B
Explaination / Solution:
Capacitive reactance
rms current
