The gases used in different types of welding would include
A). Oxygen and Hydrogen
B). Oxygen, Hydrogen, Acetylene and Nitrogen
C). Oxygen, Acetylene and Argon
D). Oxygen and Acetylene
Oxygen and Acetylene
Oxygen and Acetylene.
1. The element used for making solar cells is
2. Plaster of Paris is made by partial dehydration of
3. The energy stored in a watch spring is
4. the density of gas is maximum at
5. Most of the carbon dioxide in the blood is carried in the form of
6. The temperature which has the same reading on both Fahrenheit and Celsius scales is
7. The natural resource known as black gold is
8. Cupric point is the temperature at which