General Science and Ability 2008

**The volume percentage of nitrogen in air is approximately:**A) 60%B) 67%C) 74%D) 78% Show Answer Correct Answer: D – 78%

**Air contains a volume of carbon dioxide approximately:**A) 3%B) 33%C) 0.3%D) 0.03% Show Answer Correct Answer: D – 0.03%

**The gases used by divers as an artificial atmosphere are helium and:**A) NitrogenB) OxygenC) NeonD) Carbon Dioxide Show Answer Correct Answer: B – Oxygen

**An atomic bomb is based on the principle of:**A) Nuclear fusionB) Nuclear fissionC) All of theseD) None of these Show Answer Correct Answer: B – Nuclear fission

**The liberation of energy in the sun is based on the principle of:**A) Fission reactionB) Fusion reactionC) All of theseD) None of these Show Answer Correct Answer: B – Fusion reaction

**1024 bytes is equal to:**A) One kilobyteB) One megabyteC) One gigabyteD) One terabyte Show Answer Correct Answer: A – One kilobyte

**A bus with 32 data lines can transport how many bits at a time?**A) 8091 bitsB) 16 bitsC) 1024 bitsD) 32 bits Show Answer Correct Answer: D – 32 bits

**The second most abundant metal found in the Earth’s crust is:**A) IronB) AluminiumC) SodiumD) None of these Show Answer Correct Answer: B – Aluminium

**In the periodic table, elements have been arranged:**A) In order of increasing volumeB) In order of increasing atomic numberC) All of theseD) None of these Show Answer Correct Answer: B – In order of increasing atomic number