1. Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.
2. The method of Lobo and Evans is concerned with the calculation of the
A : heat absorption in radiant section of a furnace.
B : heat transfer by forced convection in a reboiler.
C : heat transfer in vacuum condensers.
D : mass transfer co-efficient.
3. Test specimen for determination of refractoriness under load (RUL) of a refractory is heated in a
A : furnace employing neutral atmosphere.
B : carbon resistance furnace.
C : reducing atmosphere.
D : furnace employing negative pressure.
4. In a heating process, a heat flow diagram in which the quantities of heat in the various items of a heat balance are represented by the width of a band is called the