Radiation heat losses from satisfactorily insulated high pressure boilar may be about __________ percent.

ANS:B - 7

Radiation heat losses from satisfactorily insulated high-pressure boilers may be about 1 percent. Efficient insulation is crucial for minimizing heat losses, but even with satisfactory insulation, some radiation losses can occur. However, these losses are typically small, often around 1% of the total heat input to the boiler.