Question: Who invented adding machine?

• 1. Blaise Pascal
• 2. Leonardo Da Vinci
• 3. Wilbur Wright
• 4. Karl Benz

Question: Who invent chronometer ___?

• 1. John Harrison
• 2. Marconi
• 3. John Baird
• 4. None

Question: Who is the father of medicine?

• 1. Plato
• 2. Hippocrates
• 3. Aristotle
• 4. None

Question: Who is the founder of metrology?

• 1. Einstein
• 2. Plato
• 3. Aristotle
• 4. None

Question: Who prepared "Jalaali Calandar" ?

• 1. Umer Khayyam
• 2. Al Biruni
• 3. Nasir ud din Toosi
• 4. Mousa Al Khuwaruzmi

Question: Who was the first scientist to study electricity?

• 1. Volta
• 2. Gilbert
• 3. Newton
• 4. Edison

Question: Who was the inventor of the Fan?

• 1. Thomas Edison
• 2. S.Wheeler
• 3. Wright Brothers
• 4. Christian

Question: why we should not sleep under tree at night:

• 1. Carbon di oxide
• 2. Oxygen
• 3. Nitrogen
• 4. Hydrogen

Question: Without boiling liquid state changes into gaseous state by the ___ process?

• 1. condensation
• 2. melting
• 3. freezing
• 4. evaporation

Question: With altitude air pressure ?

• 1. increase
• 2. Decrease
• 3. Not change
• 4. None