Unit 16-17-18 Test 2

Question 1 of 12

1. Question

Value of ‘k’ depends upon:

System of unit
Nature of medium
Both a and b
None of these

Question 2 of 12

2. Question

SI unit of electric intensity is:

Watt
NC-1
NS-1
Nm

Question 3 of 12

3. Question

Each volt of lightening contains energy:

4x106 joules
1000 joules
1000 million joules
10 joules

Question 4 of 12

4. Question

The output of a two input NOR gate is 1 when:

A is 1 and B is 0
A is 0 and B IS 1
Both A and B are 0
Both A and B are 1

Question 5 of 12

5. Question

1 KB =______________

1022 bytes
1023 bytes
1024 bytes
1025 bytes

Question 6 of 12

6. Question

an electrolytic capacitor is used to store large amounts of charge at:

low voltage
high voltage
neutral
positive

Question 7 of 12

7. Question

Thermocouples convert:

Heat energy into electrical energy
Heat energy into light energy
Heat energy into mechanical energy
Chemical energy into electrical energy

Question 8 of 12

8. Question

Which statement of the following is false for primary memory?

The base of primary memory is electronics
This is a random access memory
It gets lost when computer switches off
It is built on laser technology

Question 9 of 12

9. Question

What happen to the atomic number of an element which emits one alpha particle and a beta particles.

Increases by 1
Stay the same
Decrease by 2
Decrease by 1

Question 10 of 12

10. Question

The process of breaking a heavy nucleus after the bombardment of neutrons into two small nuclei is called:

Nuclear fission reaction
Nuclear fusion reaction
Nuclear Radiation
Nuclear chain reaction

Question 11 of 12

11. Question

When a heavy nucleus splits into lighter nuclei,the process would.

Release nuclear energy
absorb nuclear energy
Release Chemical energy
Absorb Chemical Energy

Question 12 of 12

12. Question

Release of the energy by the sun is due to:

Nuclear Fussion
Nuclear Fission
Burning of gases
Chemical reaction