CSS Past Papers Everyday Science 2010 Test - 1

CSS Past Papers
Everyday Science 2010
Test - 1

1. Water is heated in a kettle. The inside water is heated by convection. A person sitting near the fire receives heat by?

a) Convection
b) Reflection
c) None of these
d) Conduction
e) Radiation

2. A time can come when we will be able to design a machine which can go on working for ever without the expenditure of energy. Is it possible?

a) Very soon
b) No
c) In due course time
d) Yes
e) None of these

3. The measurement of rainfall is made by an instrument known as?

a) Hydrometer
b) None of these
c) Hygrometer
d) Barometer
e) Pedometer

4. Light year is a unit of?

a) Distance
b) Time
c) Light intensity
d) none of these
e) Time Period

5. Three elements needed for the healthy growth of plants are?

a) N,P,K
b) none of these
c) N,K,C
d) N,S,P
e) N,C,P

6. 6.Copper can be converted into gold by?

a) Artificial Radioactivity
b) Heating
c) Chemical reaction
d) None of these
e) Electroplating

7. In winter an iron pipe feel colder than a wooden window . This is because wood is?

a) non-Conductor
b) Conductor
c) None of these
d) Semi- Conductor
e) Not a solid while iron is a solid

8. The echo (reflected sounwill be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least?

a) 120 ft
b) 100 ft
c) 1120 ft
d) None of these
e) 56fft

9. It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the?

a) None of these
b) Quality
c) pitch
d) Time period
e) Frequency

10. When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is?
a) opaque
b) Transparent
c) None of these
d) Visible

e) Invisible

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