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Science and Technology

Science and Technology

 
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1. How many surfaces has the geometric shape the Mobius Strip?
 
1
2
3
4

It can be formed by giving a strip of paper a half-twist and then joining the ends together
 

 
2. What is the SI unit of frequency?
 
Herz
Joule
Ohm
Volt
 

 
3. Which is the world's largest living rodent?
 
The beaver
The capybara
The coypu
The muskrat

It can be more than four feet long and weigh over a hundred pounds
 

 
4. Which gas provides the obnoxious smell in stink bombs?
 
Hydrogen chloride
Hydrogen oxide
Hydrogen nitrate
Hydrogen sulphide
 

 
5. The first military tanks went into action in 1916. In which English city were they built?
 
Leeds
Leicester
Lincoln
Liverpool

They were built by William Foster & Co Ltd
 

 
6. What name is given to the device on an electric locomotive that collects the current from the overhead power lines?
 
Catenary
Jackshaft
Pantograph
Thyristor
 

 
7. In the ceramics industry, what name is given to the mixture of clay and water used in casting and decoration?
 
Clip
Flip
Slip
Slop
 

 
8. Wolfram is the alternative name for which chemical element?
 
Antimony
Bismuth
Mercury
Tungsten

Tungsten's chemical symbol is W
 

 
9. For what activity does an insect use its spiracles?
 
Breathing
Digestion
Reproduction
Swimming
 

 
10. The pigment sepia is obtained from which sea creature?
 
Cuttlefish
Lobster
Octopus
Walrus
 

 
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