【Test Your Knowledge】Basic Chemical Engineering Knowledge (22)
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1. Which of the following is an unsaturated hydrocarbon? ________. A. CH4 B. C3H8 C. C5H9 D. C4H10 2. The hydrostatic strength test for pressure vessels should be at ________ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. During the airtightness test of pressure vessels, the gas temperature should be no lower than _______ degrees. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is for __________. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the __________ method should be used. A. Hydrostatic leak testing B. Gas extinguishing leak testing C. Vacuum leak testing D. Fixed-pressure leak testing 6. Classified by pressure level, the pressure level for medium and low-pressure vessels is ___________. A.1.6MPa≤P
1. The one that belongs to unsaturated hydrocarbons is ____C____. (It seems there is no such substance as C5H9, right?) ) A.CH4 B.C3H8 C.C5H9 D.C4H10 2. The hydrostatic strength test for pressure vessels should be conducted at ____A____ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. When conducting a airtightness test on pressure vessels, the gas temperature should be no lower than ___C____ degrees. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is ____B______. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the ______A____ method should be used. A. Hydrostatic leak testing B. Gas discharge leak testing C. Vacuum leak testing D. Fixed-pressure leak testing 6. Classified by pressure level, the pressure category for medium and low-pressure vessels is ____A______. A.1.6MPa≤P
When conducting a leak test, the higher the temperature, the greater the gas pressure, which facilitates the detection of leaks. Are there any **rules** for this?
1. The one that belongs to unsaturated hydrocarbons below is ___C______. (Is C5H9 present? ) A.CH4 B.C3H8 C.C5H9 D.C4H10 2. The hydrostatic strength test for pressure vessels should be conducted at ___A_____ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. When conducting a airtightness test on pressure vessels, the gas temperature should be no lower than ___B____ degrees. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is ____A______. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the _____C_____ method should be used. A. Hydrostatic leak testing B. Gas suppression leak testing C. Vacuum leak testing D. Fixed-pressure leak testing 6. Classified by pressure level, the pressure category for medium and low-pressure vessels is ___A______. (It should be “medium pressure”, not “medium-low” pressure, right?) A. 1.6 MPa ≤ P
1.C2.A3.B4.A5.B6. The question is incorrect. 7.B8.A9.A10.D
C, A, C, A, A, A, A, C, A, B
1. The one that belongs to unsaturated hydrocarbons below is ___C______. A. CH4 B. C3H8 C. C5H9 D. C4H10 2. The hydrostatic strength test for pressure vessels should be conducted at ___A_____ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. When conducting a airtightness test on pressure vessels, the gas temperature should be no lower than ___B____ degrees. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is ____A______. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the _____A_____ method should be used. A. Hydrostatic leak testing B. Gas discharge leak testing C. Vacuum leak testing D. Fixed-pressure leak testing 6. Classified by pressure level, the pressure level for medium and high pressure vessels is ___A____. A.1.6MPa≤P
C A B A C A A A A A
1. The one that belongs to unsaturated hydrocarbons below is ___C______. A. CH4 B. C3H8 C. C5H9 D. C4H10 2. The hydrostatic strength test for pressure vessels should be conducted at ____A____ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. When conducting a airtightness test on pressure vessels, the gas temperature should be no lower than ___B____ degrees. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is _______A___. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the _____A_____ method should be used. A. Hydrostatic leak testing B. Gas discharge leak testing C. Vacuum leak testing D. Pressure holding leak testing 6. Classified by pressure level, the pressure category for medium and low pressure vessels is ______ A ___. A.1.6MPa≤P
1. The one that belongs to unsaturated hydrocarbons below is ___C______. A. CH4 B. C3H8 C. C5H9 D. C4H10 2. The hydrostatic strength test for pressure vessels should be conducted at ___A_____ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. When conducting a airtightness test on pressure vessels, the gas temperature should be no lower than ___B____ degrees. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is ____A______. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the _____A_____ method should be used. A. Hydrostatic leak testing B. Gas discharge leak testing C. Vacuum leak testing D. Fixed-pressure leak testing 6. Classified by pressure level, the pressure level for medium and high pressure vessels is ___A____. A.1.6MPa≤P
C, A, C, A, A, A, A, C, A, B
1. The one that belongs to unsaturated hydrocarbons is ____C____. (It seems there is no such substance as C5H9, right?) ) A.CH4 B.C3H8 C.C5H9 D.C4H10 2. The hydrostatic strength test for pressure vessels should be conducted at ____A____ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. When conducting a airtightness test on pressure vessels, the gas temperature should be no lower than ___C____ degrees. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is ____B______. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the ______A____ method should be used. A. Hydrostatic leak testing B. Gas discharge leak testing C. Vacuum leak testing D. Fixed-pressure leak testing 6. Classified by pressure level, the pressure category for medium and low-pressure vessels is ____A______. A.1.6MPa≤P
1、C 2、A 3、B 4、A 5、A 6、A 7、B 8、C 9、A 10、B
1、C 2、A 3、B 4、A 5、C 6、C 7、 8、 9、A 10、B
1、C 2、A 3、B 4、A 5、A 6、A 7、B 8、A 9、A 10、B
1、C 2、A 3、B 4、A 5、A 6、A 7、B 8、A 9、A 10、A
The one that belongs to unsaturated hydrocarbons is ____C____. (It seems there is no such substance as C5H9, right?) ) A.CH4 B.C3H8 C.C5H9 D.C4H10 2. The hydrostatic strength test for pressure vessels should be conducted at ____A____ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. When conducting a airtightness test on pressure vessels, the gas temperature should be no lower than ___C____ degrees. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is ____A______. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the ______C____ method should be used. A. Hydrostatic leak testing B. Gas discharge leak testing C. Vacuum leak testing D. Fixed-pressure leak testing 6. Classified by pressure level, the pressure category for medium and low-pressure vessels is ____A______. A.1.6MPa≤P
1、C 2、A 3、B 4、A 5、6、A 7、B 8、C 9、A 10、B
1. The one that belongs to unsaturated hydrocarbons is ____C____. 2. The hydrostatic strength test for pressure vessels should be at ____A____ of the designed operating pressure. 3. During the airtightness test of pressure vessels, the gas temperature should be no lower than ___C____ degrees. 4. If an object is not subjected to any forces from other objects, then it will remain at rest or in uniform linear motion. This law is ____B______. 5. For the leak testing of the welds on the bottom plate of storage tanks, the ______A____ method should be employed. 6. Classified by pressure rating, the pressure rating for medium and low-pressure vessels is ____A______. 7. The expansion end of the heat exchanger tube should be made smooth, with a roughness requirement of ____B______. 8. The required verticality for the installation of general vertical equipment is _____C_____ . 9. A single-phase electricity meter marked 220V.5A has a maximum allowable power rating under load of ____A______. 10. With all other conditions unchanged, increasing the temperature shifts the reaction equilibrium in the direction of __endothermic__ reaction.
1. The one that belongs to unsaturated hydrocarbons below is _C. (It seems there is no C5H9; it might be H5O10 instead.) A. CH4 B. C3H8 C. C5H9 D. C4H10 2. The hydrostatic strength test for pressure vessels should be conducted at _A__ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. When conducting a airtightness test on pressure vessels, the gas temperature should be no lower than _B__. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is _A__. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the _____C_____ method should be used. A. Hydrostatic leak testing B. Gas discharge leak testing C. Vacuum leak testing D. Pressure holding leak testing 6. Classified by pressure level, the pressure category for medium and low pressure vessels is _C_. A.1.6MPa≤P
1. The one that belongs to unsaturated hydrocarbons below is ___C______. A. CH4 B. C3H8 C. C5H9 D. C4H10 2. The hydrostatic strength test for pressure vessels should be conducted at ___A_____ of the design operating pressure. A.1.25 B.1.15 C.1.05 D.2.0 3. When conducting a airtightness test on pressure vessels, the gas temperature should be no lower than ___B____ degrees. A. 0℃ B. 5℃ C. 10℃ D. 25℃ 4. If no other objects exert any force on an object, then that object will remain at rest or in uniform linear motion. This law is ____A______. A. Newton’s first law B. Newton’s second law C. Dalton’s law D. Archimedes’ law 5. For testing the welds on the bottom plate of storage tanks, the _____C_____ method should be used. A. Hydrostatic leak testing B. Gas discharge leak testing C. Vacuum leak testing D. Fixed-pressure leak testing 6. Classified by pressure level, the pressure level for medium-pressure vessels is ___A____. A.1.6MPa≤P