A. Soaking pit
B. Muffle furnace
C. Reheating furnace
D. None of these
Related Mcqs:
- Example of an indirectly heated furnace is__________________?
A. Hood annealing furnace
B. Muffle furnace
C. Both A. and B.
D. Neither A. nor B. - ______________ is an indirectly heated furnace?
A. Open hearth furnace
B. Muffle furnace
C. Soaking pit
D. Reheating furnace - Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C ?
A. 5
B. 60
C. 20
D. 40 - In reverberatory furnace, charge is heated mainly by__________________?
A. Conduction
B. Natural convection
C. Radiation of heat from the roof of the combustion chamber
D. None of these - The heating capacity of muffle furnace depends on the_________________?
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. - Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the_________________?
A. Quantity & temperature of waste gas
B. Dust concentration & nature of dust in waste gas
C. Corrosive nature of the waste gas
D. All A., B. and C. - The rate of scaling of furnace stock depends upon the_________________?
A. Temperature
B. Time
C. Nature of atmosphere
D. All A., B. and C. - Circulation of gases in furnace is caused by the_________________?
A. Change in volume during a change of temperature
B. Difference in density between hot and cold gases
C. Furnace pressure in conjunction with draft in flues
D. All A., B. and C. - Heat balance of furnace provides means of determining the_________________?
A. Thermal efficiency of the process
B. Sources of heat losses
C. Scope of reduction of heat losses
D. All A., B. and C. - An improved and fuel efficient version of the pusher type reheating furnace is the ______________ furnace?
A. Walking beam
B. Shaft
C. Tunnel
D. Rotary hearth
