【Test Your Knowledge】Basic Chemical Engineering Knowledge (31)
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1. The standard state refers to ___________. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed ________ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of ________ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, which one cannot be used as a desiccant? ________ A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height is definitely ________ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, ________ the absorption of gas. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its ________. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to **emission standards, the pH value of wastewater___________ is considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6 9. The performance curve of a centrifugal pump refers to ________. A.Q—H B.Q—N C.Q—η D. All of the previous three 10. The unit of measurement for current is specified as ________. A.HZ B.A C.W D.cd Reference answers: 1B2C3A4C5A6B7C8B9D10B Last edited by zhangyong6404 on 2009-4-14 21:59]
1.B 2.C 3.A 4.B 5.A 6.B 7.C 8.B 9.D 10.B
1. The standard state refers to __D__. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed _C_ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of __B__ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is __B__. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height must be ___A__ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, __A_, gas absorption occurs. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its __C__. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ___B__ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6 9. The performance curve of a centrifugal pump refers to _D__. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of current measurement is specified as __B__. A.HZ B.A C.W D.cd
1. The standard state refers to __A__. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed _C_ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of __B__ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is __B__. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height must be ___A__ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, __B_, gas absorption occurs. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its __C__. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ___B__ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6 9. The performance curve of a centrifugal pump refers to _D__. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of current measurement is specified as __B__. A.HZ B.A C.W D.cd
1. The standard state refers to ____B______. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed ___C_____ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of ____A____ is the degree to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is ____B____. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height must be ___A_____ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, gas absorption ____B____. A. Favorable B. Unfavorable C. Has no impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its __C______. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ______B_____ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6. 9. The performance curve of a centrifugal pump refers to __D______. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of measurement for current is specified as _____B___. A.HZ B.A C.W D.cd
1.B 2.C 3.A 4.C 5.A 6.B 7.C 8.B 9.D 10.B
1.B 2.C 3.A 4.B 5.A 6.B 7.C 8.B 9.D 10.B
1. The standard state refers to ____B______. B.1atm 0℃ 2. When selecting the range of a pressure gauge, it should generally not exceed ___C_____ of its full scale. C.3/4 3. The meaning of ____A____ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality 4. Among the following substances, the one that cannot be used as a desiccant is ____B____. B. Caustic soda 5. When the pump is operating normally, its lift height must be ___A_____ the head. A. Less than 6; as the temperature increases, ____B____, gas absorption proceeds. B. Not favorable. 7. As a heating medium, steam is primarily utilized for its __C______. C. Latent heat 8. According to the **emission standards**, the pH value of the wastewater must be ______B_____ for it to be considered acceptable. B.6—9 9. The performance curve of a centrifugal pump refers to __D______. D. The first three are all 10; the unit for measuring current is specified as _____B___. B.A Last edited by Y130701 on 2009-4-13 18:37 ]
1. The standard state refers to _____D____. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed ____C____ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of ____C___ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is ______B__. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height is definitely ____A____ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, _____B___ the absorption of gas occurs. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its _____C___. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ____B_______ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6. 9. The performance curve of a centrifugal pump refers to ______D__. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of current measurement is specified as ______B__. A.HZ B.A C.W D.cd
1. The standard state refers to ___B_______. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed _____C___ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of _____C___ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is _C________. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height must be __A______ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, the absorption of gas ______B__. A. Favorable B. Unfavorable C. Has no impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its __C______. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ____B_______ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6 9. The performance curve of a centrifugal pump refers to _____A___. A.Q—H B.Q—N C.Q—η D. All of the previous three 10. The unit of measurement for current is specified as ___B______. A.HZ B.A C.W D.cd
1. The standard state refers to ___b_______. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed ___c_____ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of ________ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is ___c______. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height is definitely ____a____ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, __b__ the absorption of gas occurs. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its ___c__. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of the wastewater must be ____b__ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6 9. The performance curve of a centrifugal pump refers to __d___. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of current measurement is specified as __b__. A.HZ B.A C.W D.cd
1. The standard state refers to __B_______. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed ___C_____ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of ___B_____ is the degree to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is __D______. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height is definitely ____C____ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, __A______ the absorption of gas. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its ____C____. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ____B_______ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6 9. The performance curve of a centrifugal pump refers to ___A_____. A.Q—H B.Q—N C.Q—η D. All of the previous three 10. The unit of measurement for current is specified as ___B______. A.HZ B.A C.W D.cd
1. The standard state refers to ___B______. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed __C_____ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of ___A____ is the degree to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is ___C____. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height is definitely ____ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, ___A___ the absorption of gas occurs. A. Favorable B. Unfavorable C. Has no impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its __C____. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be _____B____ to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6. 9. The performance curve of a centrifugal pump refers to ___D___. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of measurement for current is specified as ___B____. A.HZ B.A C.W D.cd
1、 B 2、C 3、C 4、D 5、A 6、A 7、B 8、B 9、D 10、B
1. The standard state refers to __B__. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed _C_ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of __B__ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is __B__. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height must be ___A__ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, __B_, gas absorption occurs. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its __C__. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ___B__ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6 9. The performance curve of a centrifugal pump refers to _D__. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of current measurement is specified as __B__. A.HZ B.A C.W D.cd
1. The standard state refers to _B_. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed _C_ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of __B__ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is __C__. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height must be ___A__ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, __B_, gas absorption occurs. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its __C__. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ___B__ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6 9. The performance curve of a centrifugal pump refers to _D__. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of current measurement is specified as __B__. A.HZ B.A C.W D.cd
1. The standard state refers to __B___. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed ____B____ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of ____A___ is the degree to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is ___B____. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height is definitely ____A____ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, _____B___ the absorption of gas occurs. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its _____C___. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ____B_______ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6. 9. The performance curve of a centrifugal pump refers to ____D____. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of measurement for current is specified as ___B____. A.HZ B.A C.W D.cd
1. The standard state refers to ______A___. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed _C of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of _____C___ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, which one cannot be used as a desiccant? _A_. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lifting height is definitely equal to the_A_ head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, __B______ the absorption of gas occurs. A. Favorable B. Unfavorable C. No impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its __B_. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of the wastewater at _B is considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6 9. The performance curve of a centrifugal pump refers to _D___. A.Q—H B.Q—N C.Q—η D. All of the previous three 10. The unit of measurement for current is specified as ___B______. A.HZ B.A C.W D.cd Haha, too easy
1. The standard state refers to ___B_______. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed _C_______ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of ___B_____ is the degree to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is _____C___. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height must be ___A_____ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, gas absorption ____B____. A. Favorable B. Unfavorable C. Has no impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its ___C______. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be _____B______ for it to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6. 9. The performance curve of a centrifugal pump refers to __D______. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of measurement for current is specified as _____B___. A.HZ B.A C.W D.cd
1. The standard state refers to ____D______. A. 1 atm at 20°C B. 1 atm at 0°C C. 1 atm at 4°C D. 1 atm at 25°C 2. When selecting the range of a pressure gauge, it should generally not exceed __C______ of its full scale. A.1/2 B.1/3 C.3/4 D.1/4 3. The meaning of ___A_____ is the extent to which tasks related to product quality contribute to ensuring that product quality is maintained. A. Work quality B. Process quality C. Management quality D. Operational quality 4. Among the following substances, the one that cannot be used as a desiccant is _B_____. A. Quicklime B. Caustic soda C. Limestone D. Concentrated sulfuric acid 5. When the pump is operating normally, its lift height must be ___A_____ the head. A. Less than B. Equal to C. Greater than D. Greater than or equal to 6. As the temperature rises, ___B____ the absorption of gas occurs. A. Favorable B. Unfavorable C. Has no impact D. Irrelevant 7. As a heating medium, steam is primarily utilized for its __C______. A. Pressure B. Sensible heat C. Latent heat D. Enthalpy 8. According to the **emission standards, the pH value of wastewater must be ___B________ to be considered acceptable. A. Less than 6 B. 6–9 C. 9 D. 6. 9. The performance curve of a centrifugal pump refers to ___D______. A.Q—H B.Q—N C.Q—η D. All of the first three 10. The unit of measurement for current is specified as __B______. A.HZ B.A C.W D.cd I’m not sure about question 7
1、A 2、C 3、A 4、B 5、A 6、B 7、C 8、B 9、D 10、B