3rd Engineer Exam 09-25-2002
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3RD Class Engineer Exam 9/25/2002


1.)  THERE ARE 2 RECIPROCATION PUMPS, ONE IS LOW PRESSURE AND ONE IS HIGH PRESSURE. HOW CAN YOU TELL THE DIFFERENCE AND THE RATING?

2.)  HOW DO YOU PREVENT SCALE IN A BOILER?

3.)  NAME 5 STEAM TRAPS

4.)   WHAT IS AN ECONOMIZER? HOW DOES IT EFFECT BOILER EFFICIENCY?

5.)   WHAT IS A SUPER HEATER? WHERE IS IT LOCATED IN A BOILER SETTING?

6.)   WHAT ARE THE CONSTITUENTS OF AIR? BY VOLUME AND BY WEIGHT.

7.)   WHAT ARE THE COMBUSTIBLES OF FUEL?

 

8.)   WHAT IS KINETIC ENERGY?

9.)   WHAT'S THE WATER HEATING SURFACE OF A WATER TUBE BOILER WITH 120 TUBES 2" IN DIAMETER 10' FEET LONG?

10.)   LUBE OIL HAS 3 USES WHAT ARE THEY?

AND WHAT ARE 2 CRITICAL TEMPERATURES YOU SHOULD BE AWARE WHEN USING BABBITT BEARINGS?

11.)   NAME 3 METHODS OF KEEPING STEAM FROM ESCAPING FROM THE TURBINE TO THE ATMOSPHERE.

12.)  WHAT IS A BLOW DOWN TANK USED FOR? IS IT USED FOR INTERMEDIATE OR CONSTANT BLOW DOWN?

13.)   WHAT ARE THE PARTS USED IN A DIRECT ACTING PRESSURE REDUCING VALVE TO CONTROL THE PRESSURE, SKETCH THE PARTS

14.)  WHAT IS HEATING SURFACE IN A BOILER?

 

15.)  HOW IS VACUUM MEASURED?

16.)  WHAT IS PRESSURE ABSOLUTE AT BOILING POINT?

17.)  LAY UP A BOILER USING THE WET METHOD.

18.) How many safety valves do you need and how should they be set on a boiler with 625 square feet of heating surface operating at 150 PSI?

19.)  WHAT IS THE CAPACITY OF A SAFETY VALVE?

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