General Science - Online Test
Q1. At large flow velocities the flow of a fluid becomes
Answer : Option B
Explaination / Solution:
When any liquid is flowing more than the velocity of it's critical velocity then flow becomes turbulent.
Q2. Standard Molar Enthalpy of Formation is
Answer : Option B
Explaination / Solution:
The standard enthalpy change for the formation of one mole of a compound from its elements in their most stable states of aggregation is enthalpy of formation.
Q3. The junctions which help to stop substances from leaking across a tissue is
Answer : Option A
Explaination / Solution:
Tight junctions hold cells together. They are narrow belts that circle around the upper part of lateral surfaces of the adjacent epithelial cells to create a fusion point. They stop substances from leaking across a tissue as they prevent passage of molecules and ions through space between adjacent cells.
Q4. Which one is not a characteristic feature of prokaryotes?
Answer : Option D
Explaination / Solution:
Prokaryotic organisms generally do not reproduce by sexual reproduction in favorable conditions. The most common method of reproduction is asexual.
Q5. ____ attempted to give more freedom to the entrepreneurs.
Answer : Option A
Explaination / Solution:
Liberalisation abolished industrial licensing under which every entrepreneur had to get permission from government officials to start a firm, close a firm or to decide the amount of goods that could be produced.
Q6. Balance of visibles is the
Answer : Option D
Explaination / Solution:
No Explaination.
Q7. The inter quartile range
Answer : Option D
Explaination / Solution:
In descriptive statistics, the interquartile range (IQR), also called the midspread or middle 50%, or technically H-spread, is a measure of statistical dispersion, being equal to the difference between 75th and 25th percentiles, or between upper and lower quartile. IQR = Q3 − Q1
Q8. Read the following :
i. Major pineal hormone is melatonin.
ii. In human beings, melatonin secretion increases in light and decreases in dark.
iii. Abnormally high levels of melatonin in children causes delayed sexual development.
Answer : Option A
Explaination / Solution:
Melatonin is a hormone secreted by the pineal gland in the brain. In helps regulate other hormones and maintains the body circadian rhythm. Abnormally high levels of melatonin is children causes delayed sexual development.
Q9. The third period (n = 3) begins at sodium with addition of first electron to
Answer : Option B
Explaination / Solution:
The electronic configuration of sodium is 1s2 2s2 2p6 3s1. The valence electron is in 3s orbital.
Q10. The census 2001 shows that in rural India only _____ percent households have an electricity connection and ___ percent still use Kerosene
Answer : Option B
Explaination / Solution:
The census 2001 shows that in rural India only 56 per cent households have an electricity connection and 43 per cent still use kerosene.
