| 1 |
Oil spreads over the surface of water because:
|
Oil is more dense than water <br>
Oil less dense than water <br>
Oil has more surface tension then water <br>
Oil has less surface tension than water <br>
|
| 2 |
A skin mark in a hit-and-run accident primarily helps in determining the
|
Weight of the vehicle<br>
Make of the vehicle <br>
Sped of the vehicle <br>
Condition of the vehicle<br>
|
| 3 |
When a car takes a sharp turn along a curve at very high sped, the set of tyres which loses contact with the ground will be:
|
back tyres <br>
Outer tyres <br>
Inner tyres <br>
All of these <br>
|
| 4 |
Which type of Uranium is used in the fission process:
|
uranium - 234<br>
uranium - 235<br>
Uranium - 236 <br>
Uranium - 237<br>
|
| 5 |
The large plates of solar panels are painted with which colour?
|
Red <br>
White <br>
Yellow <br>
Black <br>
|
| 6 |
Plutonium is used as:
|
Fuel for nuclear fission <br>
Fuel for nuclear fusion <br>
Source of chemical energy<br>
Source of light energy <br>
|
| 7 |
The gases which are used by divers as an artificial atmosphere are helium and:
|
Nitrogen<br>
Oxygen <br>
Carbon monoxide <br>
Neon <br>
|
| 8 |
Which gas is used in the preparation of soft drinks?
|
Carbon dioxide <br>
Oxygen <br>
Nitrogen <br>
Halogens <br>
|
| 9 |
A woman's voice is shriller than a man's due to:
|
Higher frequency<br>
Higher amplitude <br>
Lower frequency <br>
Weak vocal chords <br>
|
| 10 |
Acid rain contains high levels of
|
Oxalic acid <br>
Acetic acid <br>
Sulphuric and nitric acids <br>
Carbolic acid <br>
|
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