Quiz-1(General)

1. The shape of the galaxy

The galaxy we live in is called the Milky Way. It is shaped approximately like:

A) A round ball
B) A doughnut
C) A pretzel
D) A flat spiral

2. Not found in sharks

Unlike most other fish, sharks have no:

A) Bones
B) Teeth
C) Gills
D) Liver

3. Mercury

The metal mercury:

A) Is the hardest known metal
B) Is a liquid at room temperature
C) Is highly poisnous
D) cant say

4. The long hot squeeze

If you were to take a lump of coal and squeeze for a long time at very high temperatures, you would end up with:

A) Graphite
B) Volcanic glass, also known as obsidian
C) A smaller lump of coal
D) A diamond

5. End of an era

It is now believed that dinosaurs became extinct because of:

A) Viral diseases
B) Hunting by early humans
C) A worldwide period of climatic cooling
D) A meteorite impact

6. Droid definition

An android is any robot that:

A) Has more than one basic function
B) Has the ability to make decisions and formulate plans
C) Is built by other robots
D) Looks and acts like a human

7. What is the process responsible for producing photons in a diode laser?

A) Fermi level shift
B) Majority carrier injection
C) Carrier freeze out
D) Electron-hole recombination

8.What was the active medium used in the first working laser ever constructed?

A) A diamond block
B) Helium-neon gas
C) A ruby rod
D) Carbon dioxide gas

9.Where was the first oil well struck in the world?

A) Kuwait
B) USA
C) Saudi Arabia
D) Australia

10."Antifreeze" is used in car radiators to stop the liquid that cools the engine from, well, freezing when it gets cold outside. Water is one component of antifreeze; what is the other main component?

A) Ethylene glycol
B) Acetone
C) Sodium chloride
D) Benzene