General Science - Online Test
Q1. A person who actually collect the desired information is called _______.
Answer : Option D
Explaination / Solution:
An enumerator is the person who collects data on the behalf of an investigator( an individual or an organisation).
Q2. Which of the following are greenhouse gases?
Answer : Option C
Explaination / Solution:
The primary greenhouse gases in earth's atmosphere are water vapour(H2O) , carbon dioxide(CO2) , methane(CH4), nitrous oxide(N2O), and ozone(O3).
Q3. Which of the following is structural subunit of DNA?
Answer : Option A
Explaination / Solution:
Consisting of a five-carbon sugar (deoxyribose) a phosphate group and a nitrogenous base, a nucleotide links with another nucleotides in a repeating sequence, forming a very long, continuous strand of DNA.
The nitrogenous base will be one of four types: Guanine(G), Adenine (A), Cytosine (C) or Thymine (T).
Q4. In a meter bridge, when galvanometer & cell positions are interchanged
Answer : Option D
Explaination / Solution:
The battery in the circuit(1) shown is connected between A and C, while the galvanometer is connected between B and D. In the bridge balanced condition,
When the battery and the galvanometer are interchanged, the circuit takes the form (2). The circuit (2) can be re drawn as circuit (3). The ratio of the resistances in the bridge balanced condition is which is same as,
When the battery and the galvanometer are interchanged, the circuit takes the form (2). The circuit (2) can be re drawn as circuit (3). The ratio of the resistances in the bridge balanced condition is which is same as,
Q5. Simple harmonic motion is the projection of _____________________ of the circle in which the latter motion takes place.
Answer : Option B
Explaination / Solution:
Simple harmonic motion is the projection of uniform circular motion.In the above diagram P is the position of particle at at any instant of time.This motion follows the condition of SHM.simple harmonic motion is a type of periodic motion or oscillation motion where the restoring force is directly proportional to the displacement and acts in the direction opposite to that of displacement
Q6. Organism/s living as both producer as well as consumer is/are
Answer : Option A
Explaination / Solution:
Nepenthes (pitcher plant) and Drocera are insectivores plants to compensate their protein requirement. They have green leaves that perform photosynthesis process. So, they act as both producer as well as consumer.
Q7. Approximate Doppler shift formula for light is
Answer : Option D
Explaination / Solution:
No Explaination.
Q8. For the synthesis of methanol and a number of hydrocarbons , the compounds used are
Answer : Option B
Explaination / Solution:
A mixture of CO and H2 in any ratio is called synthesis gas or syn gas as it is used in synthesis of methanol and a number of hydrocarbon.
Q9. Main objective of production or use of herbicide resistant genetically modified crops is to
Answer : Option A
Explaination / Solution:
Herbicides are chemicals that kill the herbs that grow with crop plants. Use of herbicides results into accumulation of herbicide in food and water. To overcome this problem herbicide resistant genetically modified crops are used.
Q10. Which of the following complex will give white precipitate with barium chloride solution?
Answer : Option D
Explaination / Solution:
BaSO4 is precipitated when SO42− ion is present outside the coordination sphere.
