- 1. Chemical engineering is a branch of engineering that combines principles of chemistry, physics, mathematics, and economics to efficiently use, produce, design, transport, and transform energy and materials. Chemical engineers work in a variety of industries, such as chemicals, pharmaceuticals, food and beverages, energy, and environmental conservation. They are responsible for developing processes and equipment for large-scale chemical production, ensuring safety and quality standards, and optimizing production efficiency. Additionally, chemical engineers play a crucial role in research and development, sustainability, and solving complex technical challenges to improve various industrial processes and products.
What is the fundamental unit of pressure in the SI system?
A) Hertz (Hz)
B) Bar
C) Pascal (Pa)
D) Atmosphere (atm)
- 2. Which type of reactor is known for its plug flow behavior and minimal back mixing?
A) Packed bed reactor
B) Plug flow reactor
C) Continuous stirred-tank reactor (CSTR)
D) Batch reactor
- 3. What is the purpose of a distillation column in chemical processing?
A) Mixing of reactants to initiate a chemical reaction
B) Separation of components in a mixture based on their boiling points
C) Purification of water through filtration
D) Measurement of pressure in a system
- 4. Which law states that for a given mass of gas at constant temperature, the volume of gas is inversely proportional to its pressure?
A) Boyle's Law
B) Charles's Law
C) Dalton's Law
D) Gay-Lussac's Law
- 5. What property of a fluid describes its resistance to flow?
A) Viscosity
B) Specific heat
C) Density
D) Surface tension
- 6. Which process involves the removal of water from a solution by boiling and then condensing the vapor back to liquid?
A) Crystallization
B) Filtration
C) Distillation
D) Extraction
- 7. Which type of pump is commonly used to transport viscous liquids in chemical engineering processes?
A) Jet pump
B) Centrifugal pump
C) Diaphragm pump
D) Positive displacement pump
- 8. What is the purpose of a catalytic converter in chemical engineering applications?
A) Increase the pH of wastewater
B) Convert harmful pollutants into less harmful gases
C) Precipitate impurities in a solution
D) Enhance the color of industrial dyes
- 9. Which law governs the rate of heat transfer between two surfaces at different temperatures?
A) Ohm's Law
B) Stefan-Boltzmann Law
C) Newton's Law of Cooling
D) Hooke's Law
- 10. Which property of a chemical compound is typically specified by its molecular weight?
A) Volume
B) Mass
C) Velocity
D) Pressure
- 11. What is the primary application of a catalytic cracker in petroleum refining?
A) Convert heavy hydrocarbons into lighter products
B) Determine the flash point of gasoline
C) Extract sulfur from crude oil
D) Measure the API gravity of petroleum
- 12. What is the purpose of a packed bed in a chemical processing unit?
A) Store excess reactants
B) Control the temperature of a reaction vessel
C) Reduce pressure in a system
D) Provide surface area for mass transfer operations
- 13. Which type of control system continuously adjusts process variables to maintain desired conditions?
A) On-off control
B) Open-loop control
C) Cascade control
D) Feedback control
- 14. Which mechanical device is used to increase the pressure of a compressible fluid in chemical engineering processes?
A) Valve
B) Compressor
C) Pump
D) Heat exchanger
- 15. What is the purpose of a condenser in chemical processing?
A) Convert vapor into liquid by cooling
B) Increase the temperature of a gas stream
C) Filter out solid impurities
D) React with gases to form a desired product
- 16. What is the term for the rate at which reactants are consumed or products are formed in a chemical reaction?
A) Reaction rate
B) Heat capacity
C) Activation energy
D) Vapor pressure
- 17. Which instrument is commonly used to measure temperature in chemical processes?
A) Manometer
B) Flowmeter
C) Thermocouple
D) Calorimeter
- 18. What does 'HSE' stand for in the context of chemical process safety?
A) Hostile System Environment
B) Health, Safety, Environment
C) Heat Source Efficiency
D) High Speed Evaporation
- 19. What is the term for the conversion of a solid directly into a gas without passing through the liquid state?
A) Evaporation
B) Condensation
C) Sublimation
D) Freezing
- 20. Which equipment is used in chemical engineering to transfer heat between two or more fluids at different temperatures?
A) Distillation column
B) Pump
C) Heat exchanger
D) Reactor vessel
- 21. What is the term for the process of forcing a liquid or gas through a filter to remove solids or impurities?
A) Distillation
B) Absorption
C) Filtration
D) Crystallization
- 22. What is the term for the process of converting a liquid into vapor by adding heat?
A) Sublimation
B) Filtration
C) Condensation
D) Evaporation
- 23. What is the term for the conversion of a vapor back into a liquid?
A) Evaporation
B) Vaporization
C) Sublimation
D) Condensation
- 24. Which chemical engineering principle involves the application of heat to chemical reactions or systems?
A) Thermodynamics
B) Fluid dynamics
C) Kinetics
D) Electrochemistry
- 25. What does the term 'Hazard Analysis' focus on in chemical processes?
A) Resource allocation
B) Identifying potential risks
C) Process optimization
D) Quality control
- 26. What is the primary function of a compressor in chemical processing?
A) Increase the pressure of a gas or vapor
B) Mix multiple streams of fluids
C) Reduce the temperature of a fluid
D) Measure the flow rate of a liquid
- 27. In which process is a solvent used to extract a desired component from a solid or liquid mixture?
A) Filtration
B) Distillation
C) Extraction
D) Crystallization
- 28. What is the function of a distillate in a distillation column?
A) Cooling agent
B) Product with desired composition
C) Heat source
D) Waste byproduct
- 29. Which type of valve is often used to control the flow of fluids in piping systems?
A) Butterfly valve
B) Globe valve
C) Gate valve
D) Check valve
- 30. What is the term for the branch of chemistry dealing with the production of inorganic chemicals?
A) Inorganic chemistry
B) Analytical chemistry
C) Physical chemistry
D) Organic chemistry
- 31. What is the term for the study of the movement and flow of fluids, particularly liquids and gases?
A) Fluid dynamics
B) Reaction kinetics
C) Thermodynamics
D) Process control
- 32. What is the term for the process of removing impurities or unwanted components from a substance?
A) Polymerization
B) Crystallization
C) Purification
D) Hydrogenation
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