FOURTH CLASS POWER ENGINEERING
PART A COMPREHENSIVE EXAM
1. receiver expanded exhaust steam from the high-pressure turbine exit,
due to this expansion it has decreased pressure and temperature. It then
passes it through its heated tubes to recover more energy before traveling to
the intermediate/low pressure turbine stages.
Answer Reheaters
2. Which statement best reflects the second law of thermodynamics?
Answer Work must be done to transfer heat from a hotter substance to a colder one
3. Ethane, propane, and ethylene have a refrigeration classification of .
Answer Group A3
4. is the measurement used to measure boiler draft.
Answer Cm of wg
5. Cast iron boiler have which of the following advantages?
Answer They possess high corrosion resistance
,6. On the vessel side and equipment details are included.
Answer Piping and instrumentation diagrams (P&ID)
7. You can protect yourself from harmful dusts wearing a .
Answer Filter type respirators
8. Which of the following are forms of written communication
Answer - Work permits
- Log book entries
- Operating procedures and job hazard analysis
- Lockout tags
9. Which of the following are advantages of rising stem valves compared to
nonrising stem valves?
Answer - Corrosion is reduced
- Threads are not exposed to the high temperature process fluid
- It is easier to lubricate a rising stem valve than a nonrising stem valve.
- It is much easier to rapidly see from a long way away which valves are open or closed.
,10. The cylinder valve is one of the components of the gas cylinder.
Answer Most commonly damaged
11. Pipe fittings are commonly constructed of .
Answer Forged steel
12. The typical output capacity of is 150,000 kg per hour of steam or greater-
Answer Field-erected boiler
13. A hazardous materials information review act exemption typically lasts
year(s).
Answer Three
14. A cylinder in a circle is the WHIMIS symbol for
Answer Compressed gas
15. Seamless tubes have
Answer No welded joints
, 16. Which of the following statements is true about white cast iron and its
usage?
Answer White cast iron is resistant to corrosion and abrasion, making it useful for ash handling systems
17. Fire extinguishers should be hydro statically tested to ensure .
Answer They can safely contain the extinguisher medium pressure.
18. In the American welding society (AWS) numbering system for low carbon
steel electrodes, what do the first two or three digits in this case 60 mean in
E-6010?
Answer 60,000 psi tensile strength
19. Where is the continuous blowdown pipe installed in a boiler?
Answer In the steam drum a couple of inches below the water level
20. Is the capacity of an item or material to resume its regular form after
being extended or compressed.
Answer Elasticity
21. Rotary, plate, and tubular are all .
PART A COMPREHENSIVE EXAM
1. receiver expanded exhaust steam from the high-pressure turbine exit,
due to this expansion it has decreased pressure and temperature. It then
passes it through its heated tubes to recover more energy before traveling to
the intermediate/low pressure turbine stages.
Answer Reheaters
2. Which statement best reflects the second law of thermodynamics?
Answer Work must be done to transfer heat from a hotter substance to a colder one
3. Ethane, propane, and ethylene have a refrigeration classification of .
Answer Group A3
4. is the measurement used to measure boiler draft.
Answer Cm of wg
5. Cast iron boiler have which of the following advantages?
Answer They possess high corrosion resistance
,6. On the vessel side and equipment details are included.
Answer Piping and instrumentation diagrams (P&ID)
7. You can protect yourself from harmful dusts wearing a .
Answer Filter type respirators
8. Which of the following are forms of written communication
Answer - Work permits
- Log book entries
- Operating procedures and job hazard analysis
- Lockout tags
9. Which of the following are advantages of rising stem valves compared to
nonrising stem valves?
Answer - Corrosion is reduced
- Threads are not exposed to the high temperature process fluid
- It is easier to lubricate a rising stem valve than a nonrising stem valve.
- It is much easier to rapidly see from a long way away which valves are open or closed.
,10. The cylinder valve is one of the components of the gas cylinder.
Answer Most commonly damaged
11. Pipe fittings are commonly constructed of .
Answer Forged steel
12. The typical output capacity of is 150,000 kg per hour of steam or greater-
Answer Field-erected boiler
13. A hazardous materials information review act exemption typically lasts
year(s).
Answer Three
14. A cylinder in a circle is the WHIMIS symbol for
Answer Compressed gas
15. Seamless tubes have
Answer No welded joints
, 16. Which of the following statements is true about white cast iron and its
usage?
Answer White cast iron is resistant to corrosion and abrasion, making it useful for ash handling systems
17. Fire extinguishers should be hydro statically tested to ensure .
Answer They can safely contain the extinguisher medium pressure.
18. In the American welding society (AWS) numbering system for low carbon
steel electrodes, what do the first two or three digits in this case 60 mean in
E-6010?
Answer 60,000 psi tensile strength
19. Where is the continuous blowdown pipe installed in a boiler?
Answer In the steam drum a couple of inches below the water level
20. Is the capacity of an item or material to resume its regular form after
being extended or compressed.
Answer Elasticity
21. Rotary, plate, and tubular are all .
