General Science - Online Test
Q1. Market in which the securities of government and public companies are traded
Answer : Option B
Explaination / Solution:
Stock exchange is an organised and regulated financial market where securities are bought and sold at prices governed by the forces of demand and supply.
Q2. For an adiabatic change
Answer : Option B
Explaination / Solution:
An adiabatic process would not allow exchange of heat between the system and surroundings, hence q=0.
Q3. Depreciation is a
Answer : Option D
Explaination / Solution:
No Explaination.
Q4. The descriptive measure of dispersion that is based on the concept of a deviation about the mean is
Answer : Option A
Explaination / Solution:
Standard deviation for a given set of observations is defined as root mean square deviation when deviations are taken from mean.
Q5. Generally, the first ionization energy increases along a period including some exceptions. One which is NOT an exception is ______.
Answer : Option B
Explaination / Solution:
The high ionization energy of B, N and Mg is due to the presence of stable electronic configuration in these atoms as compared to the next element in the period. For ex. Be (Is2 2s2) has competely filled orbitals as compared to B (1s2 2s2 2p1) where there is one electron in p-orbital that can easily be lost. Therefore, B has a lower ionization energy than Be.
Q6. MTOE stands for
Answer : Option C
Explaination / Solution:
MTOE is the acronym for Million tonnes of Oil Equivalent. It is a unit to quantify the amount of energy which is released by the burning of a million tonnes of crude oil.
Q7. Hydrocarbons are prepared from Grignard reagent by
Answer : Option B
Explaination / Solution:
This is nylon 6,6 formed by polymerization of adipic acid and hexamethylenediamine.
Q8. The endosperm cells in angiosperms are
Answer : Option D
Explaination / Solution:
Endosperm is the product of triple fission in which two polar nuclei fuse with one of the male gamete. Endosperm provide nutrient to the developing embryo
Q9. Estimate the average thermal energy of a helium atom the temperature of 10 million Kelvin (the typical core temperature in the case of a star).
Answer : Option C
Explaination / Solution:
k = boltzman constant
Q10. Which should be considered more realistic growth model
Answer : Option B
Explaination / Solution:
Verhulst-Pearl logistic model of growth is more realistic growth model in comparison to exponential model of growth. Population growing in a habitat having limited resources shows sigmoid curve like growth before reaching to carrying capacity.
