A. Glass tank furnace
B. Open hearth furnace
C. Cupola
D. Reheating furnace
Which is not a hearth furnace ? Read More »
Furnace Technology A. Should be as low as possible i.e., 1 : 2
B. Should be 1:1 for a batch type furnace
C. Is the ratio of maximum to minimum permissible heat input rates
D. Is normally much more for a continuous furnace as compared to a batch furnace
Turn down ratio of a burner____________________? Read More »
Furnace Technology A. Gate
B. Butterfly
C. Globe
D. None of these
Main gas valve in a gaseous fuel burner is a ______________ valve? Read More »
Furnace Technology A. Horizontal
B. Vertical
C. Tangential
D. All A., B. and C.
Pulverised fuel fired furnaces employ ______________ fuel firing? Read More »
Furnace Technology A. Tunnel kiln
B. Rotary kiln
C. Soaking pit
D. Reheating furnace
Which of the following is a periodic furnace ? Read More »
Furnace Technology A. Movement of gases
B. Measurement of flue gas volume
C. Temperature control
D. Pressure adjustment
Furnace aerodynamics is related to the _____________ in the furnace? Read More »
Furnace Technology A. Surface area & emissivity of the stock
B. Properties of the muffle wall (temperature, area, and emissivity)
C. Both A. & B.
D. Neither A. nor B.
The heating capacity of muffle furnace depends on the_________________? Read More »
Furnace Technology A. Surface area & emissivity of the stock
B. Properties of the muffle wall (temperature, area, and emissivity)
C. Both A. & B.
D. Neither A. nor B.
The heating capacity of muffle furnace depends on the____________________? Read More »
Furnace Technology A. Conduction
B. Convection
C. Radiation
D. None of these
In salt bath furnace, heat is transferred to the charge mainly by __________________? Read More »
Furnace Technology A. L.D. converter
B. Glass melting tank
C. Blast furnace
D. Soaking pit
An example of shaft furnace is the__________________? Read More »
Furnace Technology