【Test Your Knowledge】Basic Chemical Engineering Knowledge (17)
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1. In a certain device, if there is a large amount of sulfuric acid or nitric acid leaking, it should be covered with _______, and not rinsed with ___. 2. A necessary condition for the evaporation process is to continuously ___________ and remove what has already ___________. 3. Typically, the reading on a pressure gauge indicates the ______ of the parameter being measured, that is, ________. 4. 1kcal/kg·℃=______________KJ/kg·K. 5. Safety devices such as ________, ________, ________, ________, _______ valves, and _______ valves are typically installed on pressure vessels. 6. As the seasons change, does adding lubricant change ________. A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance ________. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is ________. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents ________. A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are called ________. A. Business operations B. Quality functions C. Production management D. Business management Answer key: 1. Sand, water 2. Transferring heat, vaporized steam 3. Static pressure, gauge pressure 4. 4.1868 5. Pressure gauge, level gauge, thermometer, drain valve, pressure reduction, safety 6. D 7. A 8. D 9. B 10. B Did you get them right? This post was last edited by zhangyong6404 on 2009-3-31 16:27.]
1. In a certain device, if large amounts of sulfuric acid or nitric acid leak, _limestone_ should be used to cover the area; _water_ should not be used for flushing. 2. The essential conditions for evaporation are a continuous _supply of heat_ and the removal of the _vaporized liquid_. 3. Usually, the reading on a pressure gauge indicates the _actual pressure_ of the parameter being measured, that is, the _gauge pressure_. 4. 1kcal/kg·℃ = _10_KJ/kg·K. 5. Safety devices such as _stop valves_, _pressure gauges_, _thermometers_, _level gauges_, _check valves_, and _safety valves_ are usually installed on pressure vessels. 6. As the seasons change, does adding lubricant change __D__? A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance _A_. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is _D_. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents _B_. A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are referred to as _A_. A. Business operations B. Quality function C. Production management D. Business management
1. Dry sand, water 2. Heating, exhaust 3. Gauge pressure; absolute pressure – atmospheric pressure = gauge pressure 4. 10 5. Stop valves, check valves, safety valves, and other safety devices. 6、D 7、A 8、B 9、B 10、A
1. Dry sand soil, water 2. Heat energy obtained, the vapor that evaporates 3. The difference between the actual pressure and atmospheric pressure, gauge pressure 4. 4187 5. Safety pressure relief devices, pressure gauges, level gauges, thermometers, shut-off valves, pressure reducing valves 6. D 7. A 8. D 9. A 10. A
1. Limestone, water 2. Liquid replenishment 3. Difference between actual pressure and atmospheric pressure, gauge pressure 4. 4.186 5. Thermometer, pressure gauge, level gauge, high and low liquid level alarms, safety valve, shut-off valve 6. D 7. A 8. D 9. B 10. A Last edited by wysup on 2009-3-30 18:28 ]
1. Dry sand, water 2. Heating to vaporize the solvent, the vaporized steam. 3. Values higher than atmospheric pressure (i.e., gauge pressure); gauge pressure: 4, 4.187. 5. Safety devices such as thermometers, pressure gauges, safety valves, stop valves, level gauges, and check valves. 6、B 7、B 8、D 9、B 10、A
1. Limestone, water 2. Heating, vaporized steam. 3. Gauge pressure, actual pressure minus atmospheric pressure. 4. 4.187. 5. Safety devices such as thermometers, pressure gauges, safety valves, stop valves, level gauges, check valves, etc. 6、D 7、B 8、D 9、B 10、A
1. In a certain device, if a large amount of sulfuric acid or nitric acid leaks, _alkaline substances_ should be used to cover it; _water_ should not be used for flushing. 2. The essential conditions for the evaporation process are the continuous _supply of heat_ and the removal of the _vaporized gases_. 3. Usually, the reading on a pressure gauge indicates the _gauge pressure_ of the parameter being measured, that is, _absolute pressure minus atmospheric pressure_. 4. 1kcal/kg·℃ = _4.187_KJ/kg·K. 5. Safety devices are typically installed on pressure vessels, such as safety pressure relief devices, pressure gauges, thermometers, level gauges, shut-off valves, safety valves, and other such safety equipment. 6. As the seasons change, does adding lubricant change __B__? A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance _B_. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is _D_. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents _B_. A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are referred to as _A_. A. Business operations B. Quality function C. Production management D. Business management
1. In a certain device, if there is a large amount of sulfuric acid or nitric acid leaking, __limestone__ should be used to cover it; _water_ should not be used for flushing. 2. A necessary condition for the evaporation process is to continuously __heat_____ and remove the gases that have already __evaporated__. 3 The reading on a gauge at normal pressure indicates the __relative pressure__ of the parameter being measured, that is, ____actual pressure – atmospheric pressure__. 4. 1kcal/kg·℃=________4.2______KJ/kg·K. 5. Safety devices are typically installed on pressure vessels, such as ____pressure gauges____, ____thermometers____, ___level gauges___, ____level alarm devices____, ____shut-off valves___, and ___safety valves____. 6. As the seasons change, does adding lubricant change _____D___? A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance __A______. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is ____D____. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents __B______. A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are called ___A_____. A. Business operations B. Quality function C. Production management D. Business management
1. Limestone, water 2. Heating, vaporized steam. 3. Gauge pressure, actual pressure – atmospheric pressure. 4. 4.187. 5. Safety devices such as thermometers, pressure gauges, safety valves, stop valves, level gauges, and alarms. 6、D 7、B 8、D 9、B 10、A
1. In a certain device, if there is a large amount of sulfuric acid or nitric acid leaking, __limestone__ should be used to cover it; _water_ should not be used for flushing. 2. A necessary condition for the evaporation process is to continuously __heat_____ and remove the gases that have already __evaporated__. 3 The reading on a gauge at normal pressure indicates the __relative pressure__ of the parameter being measured, that is, ____actual pressure – atmospheric pressure__. 4. 1kcal/kg·℃=________4.18______KJ/kg·K. 5. Safety devices are typically installed on pressure vessels, such as ____pressure gauges, thermometers, level gauges_, shut-off valves, safety valves, and other such safety devices. 6. As the seasons change, does adding lubricant change _____D___? A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance B. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is ____D____. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents __B______. A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are called ___A_____. A. Business operations B. Quality function C. Production management D. Business management
1. Limestone, water 2. ??? 3. The difference between actual pressure and atmospheric pressure, gauge pressure 4. 4.186 5. Thermometer, pressure gauge, level gauge, high and low level alarms, safety valve, shut-off valve 6. D 7. A 8. D 9. B 10. D
1. Dry sand, water 2. Heating to vaporize the solvent, the vaporized steam. 3. The difference between the actual pressure and atmospheric pressure, gauge pressure. 4. 4.187. 5. Safety devices such as thermometers, pressure gauges, safety valves, stop valves, level gauges, and check valves. 6、B 7、B 8、D 9、B 10、A
In a certain device, if there is a large amount of sulfuric acid or nitric acid leaking, it should be covered with ___sand__, and __water_ should not be used for flushing. 2. A necessary condition for the evaporation process is to continuously __heat_______ and remove the already ___vaporized steam_____. 3. Typically, the reading on a pressure gauge indicates the difference between the _actual value_ of the parameter being measured and atmospheric pressure, that is, __gauge pressure__. 4. 1kcal/kg·℃ = _4.1868_____________ KJ/kg·K. 5. Safety devices are typically installed on pressure vessels, such as ____safety pressure relief devices__, __pressure gauges____, level gauges_____، ____thermometers____, ___shut-off valves_____， ____safety___ valves, and ___reduction____ valves. 6. As the seasons change, does adding lubricant change ___C_____? A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance __B______. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is ____D____. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents ___. A_____ A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are called ___A_____. A. Business operations B. Quality function C. Production management D. Business management
1. In a certain device, if large amounts of sulfuric acid or nitric acid leak, _limestone_ should be used to cover the area; _water_ should not be used for flushing. 2. A necessary condition for the evaporation process is the continuous _supply of heat_ and the removal of the already _liquid_ substance. 3. Usually, the reading on a pressure gauge indicates the _actual pressure_ of the parameter being measured, that is, the _gauge pressure_. 4. 1kcal/kg·℃ = _10_KJ/kg·K. 5. Safety devices such as _stop valves_, _pressure gauges_, _thermometers_, _level gauges_, _check valves_, and _safety valves_ are usually installed on pressure vessels. 6、B 7、B 8、D 9、B 10、A
Limestone, water; supplies heat, vaporizes steam; actual pressure, gauge pressure; 10; pressure relief valves, pressure gauges, thermometers, level gauges, check valves, safety valves; D A D B A
1. In a certain device, if large amounts of sulfuric acid or nitric acid leak, _limestone_ should be used to cover the area; _water_ should not be used for flushing. 2. The essential conditions for evaporation are a continuous _supply of heat_ and the removal of the _vaporized liquid_. 3. Usually, the reading on a pressure gauge indicates the _actual pressure_ of the parameter being measured, that is, the _gauge pressure_. 4. 1kcal/kg·℃ = _10_KJ/kg·K. 5. Safety devices such as _stop valves_, _pressure gauges_, _thermometers_, _level gauges_, _check valves_, and _safety valves_ are usually installed on pressure vessels. 6. As the seasons change, does adding lubricant change __D__? A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance _A_. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is _D_. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents _B_. A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are referred to as _A_. A. Business operations B. Quality function C. Production management D. Business management
1. Fire sand, water 2. Heating, exhaust 3. Actual pressure, gauge pressure 4. 10 5. Globe valve, check valve, safety valve, safety device. 6、D 7、A 8、D 9、B 10、A
1. In a certain device, if large amounts of sulfuric acid or nitric acid leak, _limestone_ should be used to cover the area; _water_ should not be used for flushing. 2. The essential conditions for evaporation are a continuous _supply of heat_ and the removal of the _vaporized liquid_. 3. Typically, the reading on a pressure gauge indicates the _relative pressure_ of the parameter being measured, that is, the _gauge pressure_. 4. 1kcal/kg·℃ = _4.1868_KJ/kg·K_. 5. Safety devices such as safety valves, _stop valves_, _check valves_, _pressure gauges_, _thermometers_, and _level gauges_ are typically installed on pressure vessels. 6. As the seasons change, does adding lubricant change __D__? A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance _A_. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is _A_. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents _B_. A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are referred to as _C_. A. Business operations B. Quality function C. Production management D. Business management
1. In a certain device, if there is a large amount of sulfuric acid or nitric acid leaking, it should be covered with __sand____; _water_ should not be used for flushing. 2. The essential conditions for the evaporation process are to continuously ___heat________ and remove the gases that have been __evaporated__. 3. Usually, the reading on a pressure gauge indicates the __gauge pressure__ of the parameter being measured, that is, __absolute pressure minus atmospheric pressure__. 4. 1kcal/kg·℃=___4.1868___________KJ/kg·K. 5. Safety devices are typically installed on pressure vessels, such as ___pressure gauges___, ___thermometers___, ____level gauges____, __safety_____ valves, ___stop____ valves, and other such safety devices. 6. As the seasons change, does adding lubricant change ___B_____? A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance ____A____. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is __D______. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents ___B_____. A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are called ____A____. A. Business operations B. Quality function C. Production management D. Business management
1. In a certain device, if there is a large amount of sulfuric acid or nitric acid leaking, it should be covered with _sand_; _water_ should not be used for washing it. 2. A necessary condition for the evaporation process is to continuously _ _ and remove what has already _ _. 3. Typically, the reading on a pressure gauge indicates the _pressure_ of the parameter being measured, that is, the _gauge pressure_. 4. 1kcal/kg·℃ = _4.2_KJ/kg·K. 5. Safety devices such as _pressure gauges_, _thermometers_, _level gauges_, and _safety valves_ are typically installed on pressure vessels. 6. As the seasons change, does adding lubricant change __B__? A. No B. Not necessarily C. No specification D. Yes 7. We call the smallest particle that can retain all the chemical properties of a substance _A_. A. Molecule B. Atom C. Neutron D. Nucleus 8. The relationship between mass flow rate and volume flow rate is _D_. A. W = Q/ρ B. W = Q/A C. W = QA D. W = Qρ 9. In the chemical equation 2H2↑ + O2↑ = 2H2O (liquid) + 571.5 KJ, the coefficient in front of the chemical formula represents _B_. A. Number of molecules B. Amount of substance C. Mass D. Volume 10. All the activities carried out to give a product certain usability are referred to as _C_. A. Business operations B. Quality function C. Production management D. Business management