CDS GENERAL SCIENCE QUIZ 2

Question 1:

Which of the following is known as the suicide bag of the cell ?

Cytoplasm

Lysosome

Endoplasmic reticulum

Golgi apparatus

Question 2:

Which of the following is called the functional unit of the lungs ?

Trachea

Bronchus

Bronchiole

Alveoli

Question 3:

The branch of science that studies cells is called -

Taxonomy

Cytology

Histology

Zoology

Question 4:

Which one of the following is the chemical formula of Plaster of Paris ?

CaSO4.1/2H2O

CaSO4.2H2O

CaSO4.5H2O

CaSO4.4H2O

Question 5:

At what pH value tooth starts to decay ?

11.2

Below 6.5

Below 5.5

Below 7.5

Question 6:

If number of protons and mass number of nuclei remains same after radioactive decay then it is called

Alpha decay

Beta decay

Gamma decay

Nuclear fusion reaction

Question 7:

Where should the handle be fixed to open a door easily?

Away from mid-point

Near the hinges

At mid-point

Anywhere near the mid-point

Question 8:

If the earth stops rotating, the apparent value of g on the earth surface will -

Remain the same everywhere

Remain the same at poles and decrease at other places

Increase everywhere

Remain the same at poles and increase at other places

Question 9:

Which of the following statement is not correct?

The velocity vector of a particle at a point is always along the tangent to the path of the particle at that point.

The acceleration vector of a particle in uniform circular motion averaged over one cycle is a null vector.

The acceleration of an object in uniform circular motion is always directed towards the centre.

The acceleration of a particle in circular motion is always along the radius of the circle towards the centre.

Question 10:

How much energy is transferred by a 12 V power supply to each coulomb of charge which it moves around a circuit ?

10 J

11 J

9 J

12 J