Advertisements
Advertisements
Question
Which zone of a flame does a goldsmith use for melting gold and silver and why?
Advertisements
Solution
Goldsmiths use the outermost part/zone of the flame to melt gold and silver. This is because the outermost zone of the flame undergoes complete combustion and is the hottest part of the flame.
RELATED QUESTIONS
Burning of wood and coal causes ______ of air.
Give reasons.
Water is not used to control fires involving electrical equipment.
It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain
Fire produced by oil cannot be controlled by ______.
Choose the correct statement about inflammable substances from the following.
They have
State whether the following statement is True or False.
Carbon dioxide is an excellent fire extinguisher.
Write True/False against the following statement and also correct the false statement.
Water is the best extinguisher for fires involving electrical equipment.
What are the three essential requirements to produce fire? How fire extinguisher is useful for controlling the fire?
What are the classes of fire?
Mention the conditions necessary for producing fire.
