Inventions Questions

Q:

FROZEN FOOD – Who discovered the first practical method of freezing food?

A) C. Birdseye B) F. Rozenosh
C) G. Findus D) R. Scott
 
Answer & Explanation Answer:

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13 6948
Q:

The first effective vaccine against polio was prepared by ?

A) Robert Edwards B) James Simpson
C) H Gibbon D) Jonas E Salk
 
Answer & Explanation Answer: D) Jonas E Salk

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Job Role: Bank Clerk

14 6819
Q:

Who invented fuel cells in 1839?

A) Buckminster Fuller B) Sir William Grove
C) Sylvester Graham D) Joyce Hall
 
Answer & Explanation Answer: B) Sir William Grove

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11 6751
Q:

Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?

A) Golf tee B) Motorboat
C) Water skis D) Hang glider
 
Answer & Explanation Answer: C) Water skis

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7 6730
Q:

The value of (sin0+cos0)2=

A) 1+sin20 B) sin20 +cos20
C) 1+ 2cos0sin0 D)
 
Answer & Explanation Answer: D)

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5 6582
Q:

Atomic theory was devised by

A) Mosley B) John Dalton
C) Daimler D) None of these
 
Answer & Explanation Answer: B) John Dalton

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6 6211
Q:

Who invented Automobiles using gasoline?

A) Karl Benz B) Kirk Macmillan
C) Thomas Alva Edison D) William Ford
 
Answer & Explanation Answer: A) Karl Benz

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8 6126
Q:

Air conditioner was discovered by

A) Edison B) Wilson
C) Carrier D) Roentgen
 
Answer & Explanation Answer: C) Carrier

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5 5989