List the procedure for lighting an oxyacetylene torch
What will be an ideal response?
To prevent potentially dangerous backfires in the torch, acetylene is always ignited first and turned off last.
Open only the torch handle acetylene valve slightly and light the acetylene gas using a spark or flint lighter. This should produce an orange and slightly sooty flame.
After the torch lights increase the flow of acetylene until most of the smoke in the flame has disappeared.
Slowly open the oxygen valve counterclockwise. Increase the oxygen flow until the center cone is well defined and the feather completely disappears and joins the center cone. This is a neutral flame.
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Estimate the number of households that could receive electric energy from 35 kg of U-235. Assume the average household requires 17 000 kWh per year, that the conversion of U-235 to electricity is 68 percent efficient, and that the energy equivalent of U-235 is 10? MJ/kg.
What will be an ideal response?
Most Toyota/Lexus transmission models have a centrifugal fluid pressure-canceling mechanism.
Answer the following statement true (T) or false (F)
The portion of the frame relay network that interfaces with the customer premises equipment and is also called the enterprise network is the:
A) switching equipment B) virtual path identifier C) backbone network D) access piece
In parallel line development, at which angle to the base line must the fold lines be projected?
A. 45 degrees B. 60 degrees C. 90 degrees D. 180 degrees