1.
In salt bath furnace, heat is transferred to the charge mainly by __________________?

2.
The heating capacity of muffle furnace depends on the____________________?

3.
The heating capacity of muffle furnace depends on the_________________?

4.
Furnace aerodynamics is related to the _____________ in the furnace?

5.
Which of the following is a periodic furnace ?

6.
Pulverised fuel fired furnaces employ ______________ fuel firing?

7.
Main gas valve in a gaseous fuel burner is a ______________ valve?

8.
Turn down ratio of a burner____________________?

9.
Which is not a hearth furnace ?

10.
Combustion of fuel in a furnace with oxygen enriched air results in higher__________________?