General Science - Online Test
Q1. Haemoglobin and chlorophyll contain
Answer : Option D
Explaination / Solution:
Hb contains Fe and Chlorophyll contains Mg.
Q2. Examples of negative correlation are
Answer : Option A
Explaination / Solution:
Negative correlation is said to exist when a rise in the value of one variable leads to a fall in the value of the other variable and vice versa.
Q3. Poverty ratio is ____ in rural areas as compared to urban areas
Answer : Option C
Explaination / Solution:
The poverty rate is the ratio of the number of people (in a given age group) whose income falls below the poverty line; taken as half the median household income of the total population.
Q4. Choose the odd one out among the following: Dryopteris, Pteris, Adiantum, Selaginella.
Answer : Option C
Explaination / Solution:
Selaginella belong to class Lycopsida and other plants (Dryopteris, Pteris, Adiantum) belong to class Pteropsida of Pteridophytes.
Q5. Golgi apparatus are the site for formation of
Answer : Option B
Explaination / Solution:
Golgi apparatus is the important site of formation of glycoproteins and glycolipids.
Q6. The first census of free India was conducted in _____.
Answer : Option C
Explaination / Solution:
Although the Census,1951, was 9th census of India but it is the first census after independence.
Q7. With the help of which cells, solar energy can be converted into electricity ?
Answer : Option B
Explaination / Solution:
With the help of photovoltaic cells, solar energy can be converted into electricity. These cells use special kind of materials to capture solar energy and then convert the energy into electricity. This technology is extremely useful for remote areas and for places where supply of power through grid or power lines is either not possible or proves very costly. This technique is also totally free from pollution.
Q8. What is not true for genetic code?
Answer : Option B
Explaination / Solution:
Genetic code is unambiguous, universal and degenerate. Codon in mRNA is read in contiguous fashion without any gap. There are no punctuations during reading of Codon.
Q9. A hair dryer meant for 110V, 60Hz is to be used in India . If 220 V is the supply voltage in India , the turns ratio for a transformer would be
Answer : Option B
Explaination / Solution:
the ratio between the number of primary turns to the number of secondary turns being called the “turns ratio” or “transformer ratio”.
turn ratio is
, hence it is a step down transformer.
Q10. Current density of a conductor is
Answer : Option B
Explaination / Solution:
Current density J = I/A
In electromagnetism, current density is the electric current per unit area of cross section. It is a vector and has a direction along the area vector.
