General Science-28

1. Dynamo is a Machine which is used for:
a. Conversion of High Voltage to low voltage
b. Conversion of Low Voltage to high voltage
c. Conversion of Electrical energy to Mechanical energy
d. Conversion of Mechanical Energy to Electrical energy

2. The Halogen being used as Analgesic is:
a. Chlorine
b. Bromine
c. Iodine
d. Fluorine

3. The IC Chip used in computer is made of:
a. Copper
b. Silicon
c. Steel
d. Plastic

4. Ozone layer is above the earth crust around:
a. 50 KM
b. 300 KM
c. 2000 KM
d. 20 KM

5. The Saliva helps in the digestion of :
a. Starch
b. Proteins
c. Fibers
d. Fat

6. In Television Broadcast, the picture signals are transmitted by:
a. Amplitude Modulation
b. Frequency Modulation
c. Phase Modulation
d. Angle Modulation

7. The cooling by a desert Cooler is based on:
a. Hot air replacement
b. Air dehydration
c. Evaporative Cooling
d. Air Rehydration

8. First three Universities (Kolkata, Mumbai, Madras) was established in which year
a. 1857
b. 1881
c. 1885
d. 1905

9. Carrier of parasite plasmodium is:
a. Fly
b. Mosquito
c. Teek
d. Air

10. Color of leave is green because:
a. It reflect Green color and absorb other colors
b. It reflect White color &absorb other colors
c. It reflects all colors
d. It absorb all colors