1 . DESCRIBE IN DETAIL A WET LAY-UP OF A BOILER.
2. WHAT ARE SHAFT SLEEVES FOR IN A CENTRIFUGAL PUMP?
3. YOU HAVE AN OIL FIRED WATER TUBE BOILER WITH 1100 SQ. FT OF HEATING SURFACE.
A. FIND THE MINIMUM RELIVING CAPACITY.
B. WHAT IS THE HORSE POWER ACCORDING TO CODE?
4. WHAT WOULD HAPPEN IF YOU HAD TOO MUCH EXCESS AIR IN THE STACK?
5. WHAT IS HEAT RELEASE?
6. LIST SEVEN INTERLOCKS ON A COMBUSTION CONTROL SYSTEM.
7. WHAT IS AN ACCUMULATION TEST AND HOW IS IT PERFORMED?
8. LIST THREE WAYS TO TEST A WELD FOR STRENGTH AND INTEGRITY.
9. WHAT ARE THE ADVANTAGES OF A VACUUM PUMP ON A RETURN SYSTEM?
10. WHAT IS THE LIGAMENT EFFICIENCY OF A PLATE WITH 3 IN. DIAMETER TUBE HOLES AND 5 1/4 IN. PITCH?
11. DOES A WATER TUBE OR FIRE TUBE BOILER HAVE MORE HEATING SURFACE? WHY?
12. DESCRIBE THE PRINCIPLE OF AN IMPULSE AND REACTION TURBINE.
13. LIST THREE FUNCTIONS OF LUBE OIL.? WHAT TWO TEMPERATURES ARE WE MOST CONCERNED WITH?
14. WHAT ARE THE MOVING BLADES, FIXED BLADES, AND NOZZLES ON AN IMPULSE TURBINE?
15. WHAT IS ABSOLUTE PRESSURE? WHAT ABSOLUTE PRESSURE DOES WATER BOIL?
16. WHAT IS FORCED DRAFT, INDUCED DRAFT, AND BALANCED DRAFT? WHAT FAN IS LARGER?
17. WHAT ARE THE COMBUSTIBLE ELEMENTS OF FUEL?
18. WHAT IS CO2 , CO, SO2 , H2 , AND H2 O?
19. WHAT IS THE COMPOSITION OF AIR IN WEIGHT AND VOLUME? WHAT IS EXCESS AIR?
20. WHAT MAKES A SAFETY VALVE POP?
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