I’ve prepared a few true-or-false questions for everyone; I hope you’ll participate actively
Thread Content
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. （） 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. （） 3. Insulating the main steam pipeline prevents heat transfer from occurring. （） 4. The boiler is one of the three main equipment in a thermal power plant. ( ) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. （） 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. （） 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. ( ) 8. The salts in steam mainly originate from the boiler feed water. （） 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. （） 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. ( ) This post was last edited by Refiner on 2009-2-28 11:49 ]
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (×) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (×) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (×) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (×) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (X) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (X) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
I have made the following changes to the answer: 1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (×) 2. The heat transfer process in the superheater is: flue gas convection and heat release + radiation heat transfer; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (×) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (×) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (×) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (×) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (Yes) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (Incorrect) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (Incorrect) 4. The boiler is one of the three main equipment in a thermal power plant. (Yes) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (Incorrect) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (Yes) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (Yes) 8. The salts in the steam mainly come from the boiler feed water. (Yes) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (Yes) 10. The phenomenon of uneven steam heat absorption in the parallel tubes of a superheater is called thermal deviation of the superheater. (right)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (Yes) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (Yes) 3. Insulating the main steam pipeline prevents heat transfer from occurring. (Incorrect) 4. The boiler is one of the three main equipment in a thermal power plant. (Yes) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (Incorrect) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (Yes) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (Yes) 8. The salts in the steam mainly come from the boiler feed water. (Yes) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (Yes) 10. The phenomenon of uneven steam heat absorption in the parallel tubes of a superheater is called thermal deviation of the superheater. (right)
1.√ 2.√ 3.√ 4.√ 5.× 6.√ 7.√ 8.√ 9.√ 10.√
1. Yes 2. Yes 3. No 4. Yes 5. No 6. Yes 7. Yes 8. Yes 9. Yes 10. Yes
1..× 2.√ 3..× 4.√ 5.× 6.√ 7.√ 8.√ 9.√ 10.√
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (×) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (×) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (X) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (X) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (×) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (×) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (×) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (×) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. (√) 2. (√) 3. (×) 4. (√) 5. (×) 6. (√) 7. (√) 8. (√) 9. (√) 10. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (×) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (×) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. （） 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. （） 3. Insulating the main steam pipeline prevents heat transfer from occurring. (√) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. （） 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. （） 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. ( ) 8. The salts in steam mainly originate from the boiler feed water. （） 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1.√ 2.√ 3.√ 4.√ 5.× 6.√ 7.√ 8.√ 9.√ 10.√
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (X) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (√) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)
1. The phenomenon in which metal gradually undergoes plastic deformation under certain temperature and stress conditions is known as creep. (√) 2. The heat exchange process in the superheater is as follows: flue gas convection and heat release + radiation heat exchange; heat conduction along the outer wall of the tube; convectional heat release on the inner wall of the tube; water vapor. (√) 3. Insulating the main steam pipeline can prevent heat transfer from occurring. (×) 4. The boiler is one of the three main equipment in a thermal power plant. (√) 5. The main task of the boiler’s evaporation equipment is to absorb the heat released by fuel combustion and heat water into superheated steam. (×) 6. The downcomer is generally installed outside the furnace, where it is not exposed to heat and is insulated. (√) 7. To ensure the safety and reliability of water circulation, the value of the circulation ratio should not be too low. (√) 8. The salts in steam mainly originate from the boiler feed water. (√) 9. Boiler blowdown can be divided into periodic blowdown and continuous blowdown. (√) 10. The phenomenon of uneven steam heat absorption in the individual tubes arranged side by side in the superheater is called thermal deviation of the superheater. (√)