General Science - Aptitude Questions and Answers - 04 December 2014

1. If a scuba diver suffers from the 'bends', this means that _______________ gas is being rapidly released from the blood and tissues.
[A]Nitrogen
[B]Hydrogen
[C]Oxygen
[D]Carbon dioxide


2. Steel is composed of number of elements. The two essential elements are iron and _______________.
[A]Aluminium
[B]Carbon
[C]Nickel
[D]Silicon


3. Glaucoma is treated by which of the following?
[A]Androgenic drug
[B]Androgenic blocking drug
[C]Cholinergic drug
[D]Anticholinergic drug


4. What substance was used as a moderator for the chain reaction in the first nuclear reactor?
[A]Boron
[B]Graphite
[C]Water
[D]Cadmium


5. Which of the following material is used along with iron ore and limestone to produce iron in a modern blast furnace?
[A]Coal
[B]Coke
[C]Bauxite
[D]Cementite