General Knowledge - 29

1. Euclid was

a) Contributor to the use of deductive principles of logic as the basis of geometry
b) Greek mathematician
c) Propounded the geometrical theorems
d) All of the above
e) None of the above 

  Answer: d

2.  Gravity setting chambers are used in industries to remove

a) Suspended particulate matter
b) SOx
c) NOx
d) CO
e) None of the above 

  Answer: a

3. Famous sculptures depicting art of love built some time in 950 AD – 1050 AD are

a) Jama Masjid
b) Khajuraho temples
c) Sun temple
d) Mahabalipuram temples
e) None of the above 

  Answer: b

4. Marsh gas is

a) Methane
b) Hydrogen
c) Ethane
d) Nitrogen
e) None of the above 

  Answer: a

5. Bell metal is an alloy of

a) Brass and nickel
b) Tin and copper
c) Zinc and copper
d) Nickel and copper
e) None of the above 

  Answer: b

6. Tetraethyl lead is used as

a) Mosquito repellent
b) Petrol additive
c) Fire extinguisher
d) Pain killer
e) None of the above 

  Answer: b

7. Bromine is a

a) Red liquid
b) Colourless gas
c) Highly inflammable gas
d) Black solid
e) None of the above 

  Answer: a

8. Quartz crystals normally used in quartz clocks etc. is chemically

a) Sodium silicate
b) Silicon dioxide
c) A mixture of germanoxide and silicon dioxid
d) Germanium oxide
 
  Answer: b

9. For over 500 years, paper was only available and sold as single sheets. In 1902, an inventive Australian used half size sheets of paper, a bit of glue and cardboard to create the what?

a) Telephone Book
b) Notice Board
c) Notepad
d) Calendar
e) None of the above 

  Answer: c

10. What Elmer A. Sperry invented?

a) Hydraulic turbine
b) Gyrocompass
c) Magnetic compass
d) Hydroplane
e) None of the above 

  Answer: b