General Science - Online Test

Q1.

How many protons, neutrons and electrons are in ?

Answer : Option A
Explaination / Solution:

Atomic number of iron (Fe) = 26

So number of protons = 26

Number of protons = number of electrons

But To gain 3+ charge it should loose 3 electron. So number of electrons present = 26-3 = 23

Now atomic mass = 56 (Given).

Number of neutrons = atomic mass - number of protons = 56-26 = 30


Q2.

If  then ryx=?


Answer : Option B
Explaination / Solution:

Coefficients of correlation possess the property of symmetry, i.e., rxy=ryx .

Q3. Impose more taxes on rich and commodity of luxury consumption will
Answer : Option D
Explaination / Solution:

In the present era of social and political awakening, it has become a major plank of political policy that inequalities of incomes should be reduced, if not eliminated. India also has decided to set up a ‘socialistic pattern of society’. With this end in view, the government strives to prevent the concentration of wealth and income in a few hands.

Q4. Which of the following statements with reference to cytoskeleton is not correct?
Answer : Option D
Explaination / Solution:

The cytoskeleton in a cell is involved in functions like mechanical support, motility, maintenance of the shape of the cell.

Q5. In ____ information is recorded by the informants themselves whereas in ____ information as supplied by the informants is recorded by the enumerators.
Answer : Option D
Explaination / Solution:

Questionnaire is generally sent through mail to informants to be answered as specified in a covering letter, but otherwise without further assistance from the sender. Whereas, a schedule is generally filled by the research worker or enumerator, who can interpret the questions when necessary.

Q6. Which of the following is not the function of environment
Answer : Option C
Explaination / Solution:

Functions of the environment

  1. Environment supplies resources for production.
  2. Environment assimilates waste,
  3. Environment sustains life ,
  4. Environment enhances the quality of life.

 


Q7. RNA polymerase is only capable of catalyzing the process of
Answer : Option B
Explaination / Solution:

During protein synthesis, elongation of peptide chain is catalyzed by the enzyme RNA polymerase. Elongation continuous until a non-sense or stop codon is reached.

Q8. You have a 200.0 Ω resistor, a 0.400-H inductor, 5.0 μF a capacitor, and a variable frequency ac source with an amplitude of 3.00 V. You connect all four elements together to form a series circuit. Current amplitude at an angular frequency of 400 rad/s is
Answer : Option C
Explaination / Solution:
No Explaination.


Q9. The length of a second’s pendulum decreases by 0.1percent, then the clock
Answer : Option A
Explaination / Solution:
No Explaination.


Q10.
In the reaction,
A is

Answer : Option B
Explaination / Solution: