NTPC CBT 2 SCIENCE QUIZ

Question 1:

A piece of Ice was tied with a string to a water bucket's bottom, and the water bucket was filled with water with ice fully submerged in it. What would be the impact on the level of water when the ice melts away completely?

The level of water will go up

The level of water will go down

The level of water will remain unchanged

The level of water will first increase then come to the previous on

Question 2:

Which of the following is correct about "genome (or gene) editing"?
1. Genome editing uses a type of enzyme called an ‘engineered nuclease’ which cuts the genome in a specific place.
2. Genome (or gene) editing is a way of making specific changes to the DNA of a cell or organism.

Only A is correct

Only B is correct

Both A & B are incorrect

Both A & B are correct

Question 3:

Which one of the following acids is secreted by leaves of Nettle that causes painful stings?

Methanoic acid

Citric acid

Tartaric acid

Acetic acid

Question 4:

What does DRAM stand for?

Digital Random Access Memory

Dynamic Random Access Memory

Dividing Random Access Memory

Dynamic Recording Access Memory

Question 5:

Consider the following statements about Bharat QR code -

1. Bharat QR is a digital wallet.

2. QR code is read by mobile phones and it shows the information about the product to which it is attached.

3. QR code will help in promoting financial inclusion.

Which of the given statement(s) is/are correct?

1 and 2

2 and 3

1 and 3

1, 2 and 3

Question 6:

Which of the following metals reacts with steam to form metal oxide and hydrogen?

Copper

Silver

Lead

Aluminium

Question 7:

How many atoms are present in one mole of copper?

$6.022 \times 10^{24}$

$6.022 \times 10^{25}$

$6.022 \times 10^{22}$

$6.022 \times 10^{23}$

Question 8:

Given the pH of the solution, Which solution has the highest concentration of hydrogen ions?

10.1

4.1

2.4

8

Question 9:

The induced current is highest when the direction of motion of the coil with respect to the magnetic field is ____ .

0°

45°

180°

90°

Question 10:

Also known as cattle plague “Rinderpest” disease, which was recently eliminated was caused by which among the following?

Bacteria

Virus

Fungi

Nematode