General Science - Online Test
Q1. In which of the following polymers ethylene glycol is one of the monomer units?
Answer : Option A
Explaination / Solution:
Formation of Dacron involves ethylene glycol and terephthalic acid as monomer unit.
Q2. The birth rate if 7 new plants are added to previous year plant population of 23 Salvinia plants will be
Answer : Option B
Explaination / Solution:
The birth rate of a population =
Here birth rate=
Hence, birth rate of Salvinia plants is equal to 0.3.
Q3. Non-symbiotic nitrogen fixing prokaryote is
Answer : Option C
Explaination / Solution:
Most of the prokaryotic nitrogen fixing prokaryotes are symbiotic in nature. Azatobacter is a bacteria which is non-symbiotic nitrogen fixing prokaryote.
Q4. Select which one is correctly matched pair :
Answer : Option C
Explaination / Solution:
Some of the substances like fructose and some amino acids are absorbed with the help of the carrier ions like sodium ions. This mechanism is called the facilitated transport.
Q5. The layered lens is made of two kinds of glass. A point source of light is placed on its principal axis. If the reflections from the boundaries between layers are ignored, the lens will form
Answer : Option A
Explaination / Solution:
No Explaination.
Q6. Which plant is responsible for doing hallucination?
Answer : Option C
Explaination / Solution:
Hallucination is a condition in which a person feels pleasure in spite of stress and other mental problems. In this condition, central nervous systems get influenced and reduce the thinking capacity. Datura, Atropa baladona and erythroxylum coca, all cause hallucination.
Q7. Can there be an economy without economic problems
Answer : Option D
Explaination / Solution:
The economic problem – sometimes called the basic or central economic problem – asserts that an economy's finite resources are insufficient to satisfy all human wants and needs. It assumes that human wants are unlimited, but the means to satisfy human wants are scarce.
Q8. Match the following :
column A
a) Hypophysis
b) Modulator
c) Receptor
d) Effector
column B
i) Sense organs
ii) Pituitary
iii)Brain and spinal cord
iv) Muscles and glands
column A
a) Hypophysis
b) Modulator
c) Receptor
d) Effector
column B
i) Sense organs
ii) Pituitary
iii)Brain and spinal cord
iv) Muscles and glands
Answer : Option D
Explaination / Solution:
Hypophysis is a part of pituitary gland. Modulator is present in brain and spinal cord. Receptor is located in sense organs. Effectors are muscle and glands that bring about movement.
Q9. When TVC is zero at zero level of output, TFC
Answer : Option D
Explaination / Solution:
No Explaination.
Q10. Around 1015 Hz corresponds to the region of the electromagnetic spectrum
Answer : Option C
Explaination / Solution:
Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 390 to 700 nm. In terms of frequency, this corresponds to a band in the vicinity of 430–770 THz.
