General Science - Online Test
Q1. Which among the following is an instantaneous reaction?
Answer : Option A
Explaination / Solution:
Precipitation of AgCl is an example of instantaneous reaction.
Q2. In a bar chart the method used to distinguish one bar from another must be displayed separately such display is called
Answer : Option D
Explaination / Solution:
Legend is a picture or symbol or colour given to each graph to differentiate the bars with each other.
Q3. In 1988 which scheme was established
Answer : Option B
Explaination / Solution:
The Kisan Credit Card (KCC) scheme is a credit scheme introduced in August 1998 by Indian banks.
Q4. The reason why cyclists bank when taking a sharp turn is
Answer : Option A
Explaination / Solution:
In order to take a safe turn, the cyclist has to bend a little from his vertical position. In this case, a component of the reaction provides the required centripetal force.
If q is angle made by the cyclist with the vertical then
Dividing (2) by (1), we get
=>
In actual practice, the value of q is slightly less because the force of friction also contributes towards the centripetal force.
Q5. PPP GDP per capita growth rate of India during (1990-2007) is
Answer : Option A
Explaination / Solution:
The Gross Domestic Product per Capita in India was recorded at 6092.60 US Dollars in 2016, when adjusted by PPP. The GDP per capita, in India, when adjusted by PPP is equivalent to 34% of world's average. GDP per capita PPP in Indian averaged 3256.23 USD from 1990until 2016, reaching an all time high of 6092.60 USD in 2016 and a record low of 1737.60 USD in 1991.
Q6. Crossing over occurs in
Answer : Option D
Explaination / Solution:
Crossing over occurs in pachytene sub-stage of prophase of meiosis I. During which exchange of genetic materials takes place between homologous chromosomes.
Q7. In aerosol the dispersion medium is
Answer : Option C
Explaination / Solution:
Dispersion medium is gas.
Q8. A point charge causes an electric flux of to pass through a spherical Gaussian surface of 10.0 cm radius centred on the charge. (a) If the radius of the Gaussian surface were doubled, how much flux would pass through the surface? (b) What is the value of the point charge?
Answer : Option A
Explaination / Solution:
(a) Electric flux is given by since amount of charge not depends on size and shape so by making radius double the amount of charge remain same so electric flux remain same.
Q9. Four identical hollow cylindrical columns of mild steel support a big structure of mass 50,000 kg. The inner and outer radii of each column are 30 and 60 cm respectively. Assuming the load distribution to be uniform, calculate the compression strain of each column. . Take Young's modulus of steel as 20 Pa
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. Molecular scissors are
Answer : Option A
Explaination / Solution:
Restriction enzymes are also called 'molecular scissors' as they cleave DNA at or near specific recognition sequences known as restriction sites. These enzymes make one incision on each of the two strands of DNA and are also called restriction endonucleases.
