1. equal volumes of oxygen and acetylene
2. more volume of acetylene and less volume of oxygen
3. more volume of oxygen and less volume of acetylene
4. none of these
equal volumes of oxygen and acetylene
1. equal volumes of oxygen and acetylene
2. more volume of acetylene and less volume of oxygen
3. more volume of oxygen and less volume of acetylene
4. none of these
more volume of oxygen and less volume of acetylene
1. equal volumes of oxygen and acetylene
2. more volume of acetylene and less volume of oxygen
3. more volume of oxygen and less volume of acetylene
4. none of these
more volume of acetylene and less volume of oxygen
1. less luminous
2. shorter
3. more luminous
4. both (a) and (b)
both (a) and (b)
1. copper or brass
2. cast iron
3. steel
4. all of these
all of these
1. more
2. less
3. same
4. all of these
more
1. brass
2. copper
3. bronze
4. all of these
all of these
1. steel, castiron, copper etc.
2. brass and bronze/c
3. hard surfacing materials such as satellite
4. all of these
hard surfacing materials such as satellite
1. 1:1
2. 1.5:1
3. 2:1
4. 2.5:1
2.5:1
1. acetylene cylinder
2. oxygen cylinder
3. equal in both the cylinders
4. none of these
oxygen cylinder