- 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) Atmosphere (atm)
C) Bar
D) Pascal (Pa)
- 2. Which type of reactor is known for its plug flow behavior and minimal back mixing?
A) Plug flow reactor
B) Batch reactor
C) Continuous stirred-tank reactor (CSTR)
D) Packed bed reactor
- 3. What is the purpose of a distillation column in chemical processing?
A) Purification of water through filtration
B) Separation of components in a mixture based on their boiling points
C) Measurement of pressure in a system
D) Mixing of reactants to initiate a chemical reaction
- 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) Gay-Lussac's Law
D) Dalton's Law
- 5. What property of a fluid describes its resistance to flow?
A) Surface tension
B) Viscosity
C) Density
D) Specific heat
- 6. Which process involves the removal of water from a solution by boiling and then condensing the vapor back to liquid?
A) Extraction
B) Filtration
C) Crystallization
D) Distillation
- 7. Which type of pump is commonly used to transport viscous liquids in chemical engineering processes?
A) Jet pump
B) Diaphragm pump
C) Centrifugal pump
D) Positive displacement pump
- 8. What is the purpose of a catalytic converter in chemical engineering applications?
A) Convert harmful pollutants into less harmful gases
B) Enhance the color of industrial dyes
C) Precipitate impurities in a solution
D) Increase the pH of wastewater
- 9. Which law governs the rate of heat transfer between two surfaces at different temperatures?
A) Newton's Law of Cooling
B) Ohm's Law
C) Stefan-Boltzmann Law
D) Hooke's Law
- 10. Which property of a chemical compound is typically specified by its molecular weight?
A) Mass
B) Pressure
C) Velocity
D) Volume
- 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) Measure the API gravity of petroleum
D) Extract sulfur from crude oil
- 12. What is the purpose of a packed bed in a chemical processing unit?
A) Provide surface area for mass transfer operations
B) Reduce pressure in a system
C) Control the temperature of a reaction vessel
D) Store excess reactants
- 13. Which type of control system continuously adjusts process variables to maintain desired conditions?
A) Open-loop control
B) On-off 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) Heat exchanger
B) Valve
C) Pump
D) Compressor
- 15. What is the purpose of a condenser in chemical processing?
A) Filter out solid impurities
B) Increase the temperature of a gas stream
C) React with gases to form a desired product
D) Convert vapor into liquid by cooling
- 16. What is the term for the rate at which reactants are consumed or products are formed in a chemical reaction?
A) Vapor pressure
B) Reaction rate
C) Heat capacity
D) Activation energy
- 17. Which instrument is commonly used to measure temperature in chemical processes?
A) Thermocouple
B) Calorimeter
C) Flowmeter
D) Manometer
- 18. What does 'HSE' stand for in the context of chemical process safety?
A) Health, Safety, Environment
B) Hostile System 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) Freezing
B) Sublimation
C) Evaporation
D) Condensation
- 20. Which equipment is used in chemical engineering to transfer heat between two or more fluids at different temperatures?
A) Distillation column
B) Reactor vessel
C) Heat exchanger
D) Pump
- 21. What is the term for the process of forcing a liquid or gas through a filter to remove solids or impurities?
A) Absorption
B) Crystallization
C) Distillation
D) Filtration
- 22. What is the term for the process of converting a liquid into vapor by adding heat?
A) Filtration
B) Sublimation
C) Evaporation
D) Condensation
- 23. What is the term for the conversion of a vapor back into a liquid?
A) Vaporization
B) Evaporation
C) Condensation
D) Sublimation
- 24. Which chemical engineering principle involves the application of heat to chemical reactions or systems?
A) Electrochemistry
B) Thermodynamics
C) Kinetics
D) Fluid dynamics
- 25. What does the term 'Hazard Analysis' focus on in chemical processes?
A) Quality control
B) Process optimization
C) Resource allocation
D) Identifying potential risks
- 26. What is the primary function of a compressor in chemical processing?
A) Measure the flow rate of a liquid
B) Increase the pressure of a gas or vapor
C) Reduce the temperature of a fluid
D) Mix multiple streams of fluids
- 27. In which process is a solvent used to extract a desired component from a solid or liquid mixture?
A) Filtration
B) Distillation
C) Crystallization
D) Extraction
- 28. What is the function of a distillate in a distillation column?
A) Product with desired composition
B) Waste byproduct
C) Cooling agent
D) Heat source
- 29. Which type of valve is often used to control the flow of fluids in piping systems?
A) Butterfly valve
B) Check valve
C) Gate valve
D) Globe 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) Process control
C) Thermodynamics
D) Reaction kinetics
- 32. What is the term for the process of removing impurities or unwanted components from a substance?
A) Purification
B) Crystallization
C) Hydrogenation
D) Polymerization
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