POWER ENGINEERING 2A3 COMPLETE EXAM QUESTIONS AND ANSWERS 2025/2026

POWER ENGINEERING 2A3 COMPLETE EXAM QUESTIONS AND ANSWERS 2025/2026 One boiler horsepower is equal to how many kW - Answer -9.809kW This is still the common measure of capacity for small boilers, where large boiler capacity is given in the number of kg of steam per hour. What are the definitions of boiler, steam generator and steam generating unit? - Answer -Boiler - strictly speaking are the elements in which the change of state from water to steam takes place. Steam generator - embraces the many combinations of heating surfaces, such as water walls, superheaters, reheaters, economizers, and air heaters. Steam generating units - consists of a steam generator and its associated equipment, including fuel burning, ash removal, and draft systems. What are the three general methods of calculating the output rating of a boiler? - Answer -1) One square meter of heating surface equals 10kW. Where a computation is to be made of a curved surface, the surface having the greater radius shall be taken. 2)Where electric power is used as the heat source, the boiler rating shall be the maximum kilowatt rating of the heating element. The actual output will be somewhat less. 3) Where neither of the above determinations are applicable, an hour