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Worksheets8 UNIT
Total questions: 150
Worksheet time: 1hrs 15mins
What is the main purpose of technical analysis of petroleum products at refineries?
To determine operational and quality characteristics
To increase catalyst activity
To calculate pipeline pressure
To measure equipment corrosion rate
To reduce refinery noise
Which physical separation method is based on differences in boiling points?
Crystallization
Membrane filtration
Centrifugation
Distillation
Adsorption
Hydrocarbons consisting only of single C–C bonds belong to which group?
Aromatics
Olefins
Paraffins
Naphthenes
Alkynes
What type of compounds contain sulfur, nitrogen, or oxygen atoms?
Pure hydrocarbons
Non-hydrocarbon heteroatomic compounds
Metal-organic catalysts
Radioactive compounds
Polymer residues
Which method is commonly used to isolate heteroatomic compounds from middle distillates?
Steam reforming
Acid–base extraction
Catalytic cracking
Hydrocracking
Polymerization
What parameter is typically used to express the composition of petroleum fractions?
Molecular geometry
Boiling range
Freezing point
Electrical resistivity
Vapor acidity
GOST ISO 3405–2022 regulates analysis of which property?
Flash point
Pour point
Atmospheric distillation characteristics
Kinematic viscosity
Toxicity index
Which method is used to determine the hydrocarbon group composition?
Gravimetric analysis
Chromatography
Sedimentation
Infrared drying
Thermogravimetric combustion
What does the octane number characterize?
Density
Engine power
Knock resistance of gasoline
Fuel sulfur content
Viscosity stability
What does the cetane number describe?
Resistance to oxidation
Fuel evaporation rate
Ignition quality of diesel fuel
Water content
Mechanical impurities
Which of the following is the first stage of experimental work?
Data processing
Selection of feed or object
Formulation of the research task
Safety inspection
Reporting
What is a key requirement during laboratory experimental work?
Maximizing heating rate
Safety compliance
Minimizing the number of instruments
Avoiding documentation
Using only open flames
In system analysis of chemical processes, what is a “system”?
A single molecule
An isolated experiment
A set of interconnected elements
A marketing model
A geological formation
What is the goal of modeling in chemical technology?
Eliminating equipment maintenance
Predicting process behavior under various conditions
Increasing fuel odor intensity
Reducing documentation
Increasing manual control
Which model describes the behavior of a real technological apparatus most accurately?
Empirical model
Hypothetical model
Mechanistic model
Symbolic model
Linear approximation
Increasing efficiency of chemical-technology devices often requires:
Reducing reaction rate
Increasing energy consumption
Minimizing losses and optimizing heat exchange
Eliminating automation
Creating more waste
What does depth of processing refer to?
Thickness of pipelines
Degree of raw material conversion
Number of fuel products
Density of catalysts
Length of the reactor
What is the main objective of minimizing energy consumption in refining?
Increasing fuel process stability
Improving energy efficiency and cost reduction
Increasing sulfur emissions
Prolonging product storage
Increasing viscosity
Minimizing industrial waste primarily improves:
Corrosion rate
Environmental and economic performance
Fuel octane rating
Product selectivity
Equipment noise levels
Which principle is essential when designing CTS equipment?
Uncontrolled temperature rise
Thermal and energy optimization
Excessive manual control
Maximum pressure fluctuations
Non-standard materials usage
What separation method is based on differences in molecular structure interactions with adsorbents?
Distillation
Adsorption
Coagulation
Sedimentation
Cavitation
The presence of aromatics in crude oil typically leads to:
Higher ignition temperature
Lower density
Higher chemical reactivity
Stronger corrosion of equipment
The isolation of nitrogen-containing compounds often uses:
Ion-exchange resins
Distillation only
Evaporation
Sedimentation
Cooling crystallization
Fraction composition is commonly represented by:
pH curves
ASTM distillation curves
X-ray spectra
Adsorption isotherms
Combustion curves
What instrument is used for determining octane number?
Saybolt viscometer
CFR engine
Gas analyzer
Flash point tester
pH meter
What is the final stage of an experiment?
Selection of equipment
Data analysis and reporting
Heating samples
Pressure measurement
Sample washing
A system model that simplifies real conditions for easier calculations is called:
Perfect model
Reduced model
Idealized model
Experimental model
Hybrid model
Improving existing processes often involves:
Increasing manual labor
Enhancing heat integration
Using outdated equipment
Reducing control systems
Increasing waste output
What parameter shows the completeness of raw material processing?
Cloud point
Processing depth
Thermal conductivity
Flash point
Smoke point
Reducing heat loss in technological systems improves:
Fuel yield
Furnace pressure
Energy efficiency
Aromatics content
Catalyst poisoning
What is the primary purpose of distillation analysis?
To determine ash content
To measure boiling range distribution
To detect metals
To measure pour point
To evaluate odor
Which compounds typically cause corrosion in crude oil?
Paraffins
Olefins
Sulfur compounds
Neutral gases
Helium
Gas chromatography separates compounds based on:
pH
Diffusion coefficient
Volatility and interaction with stationary phase
Combustion rate
Solubility in water
Cetane number is determined by comparing fuel properties with:
Hexane
Gasoline
Reference diesel fuels
Kerosene
Crude oil
In system analysis, feedback is necessary for:
Creating data gaps
Unstable control
Real-time correction of deviations
Random pressure increases
Reducing automation
Which method is used to reduce heteroatomic sulfur compounds?
Chlorination
Hydrodesulfurization
Polymerization
Dehydrogenation
Alkylation
A petroleum fraction with a narrow boiling range is typically:
More uniform in composition
More difficult to refine
Highly corrosive
Non-flammable
Always aromatic
The optimal research object for an experiment is selected based on:
Material type
Scientific relevance and availability
Market demands
Construction materials
Storage volume
Minimizing waste also reduces:
Fuel viscosity
Environmental risks
Fraction density
Ignition temperature
Catalyst cost
A model used for predicting process efficiency is a:
Decorative model
Empirical model
Social model
Geological model
Visual model
What does the term "completeness of processing" indicate?
Fraction odor
Level of raw material conversion
Storage volume of products
Density of water impurities
Furnace temperature
A key concept in minimizing energy losses is:
Increasing residence time
Heat integration
Increasing manual adjustments
Reducing pressure control
Eliminating insulation
Distillation curves help determine:
Noise level
Viscosity at 0°C
Fraction evaporation behavior
Metal concentration
Aromatic compounds yield
The most representative model of a technological device is:
Symbolic model
Statistical model
Mechanistic model
Random model
Statistic model
The concept of minimizing industrial waste is primarily linked with:
Reducing fuel octane value
Increasing by-product formation
Environmental protection and resource efficiency
Raising sulfur content
Uncontrolled emissions
What is the primary goal of optimal use of chemical technology processes?
Maximizing productivity with minimal resource loss
Increasing the intensity of production
Reducing laboratory measurements
Eliminating heat exchangers
Increasing manual operation
System analysis in chemical technology focuses on:
Independent operation of each element
Interconnections between process components
Random variations in physical properties
Ignoring mass flow changes
Visual design only
The basic principle of system analysis is understanding:
Isolated variables
The interrelation of phenomena
Only economic indicators
The physical appearance of equipment
Storage requirements
Material balance expresses:
Pressure changes
Mass conservation in a system
Catalyst activation
Radiation absorption
Electrical conductivity
Thermal balance determines:
Fuel purity
Distribution of heat in a process
Distillation curve height
Equipment corrosion rate
Liquid density
The synthesis of a mathematical model begins with:
Identification of key variables
Removing unnecessary equipment
Selecting bright indicators
Increasing column pressure randomly
Heat exchanger shutdown
In oil rectification, the main function of a distillation column is:
Cooling air streams
Separating mixtures by boiling point differences
Compressing gases
Increasing sulfur content
Mixing fractions
Boiling point differences lead to:
Liquid crystallization
Fraction separation in rectification
Random thermal expansion
Acoustic noise reduction
Chemical decomposition
Gas absorption is the process of:
Solid–liquid separation
Transfer of gas components to a liquid
Metal oxidation
Thermal cracking
Vapor condensation
SO2 capture in absorption commonly uses:
Alkali solutions
Hydrocarbons
Noble gases
Metal oxide powders
Dry nitrogen
CO2 absorption efficiency depends on:
Absorbent regeneration
Random heating
Electrical potential
Product viscosity
Electrostatic fields
A “pressure–absorption efficiency” curve shows:
Temperature variability
The effect of pressure on gas capture
Moisture accumulation
Carbon chain branching
Aromaticity index
Activated carbon adsorption is mainly based on:
Mechanical filtration
Surface forces and porosity
Magnetic attraction
Electrolysis
Catalytic reduction
Zeolites are effective adsorbents due to:
Low melting point
Regular microporous structure
Electrical conductivity
High metal content
Acidic odor
Extraction of aromatic hydrocarbons often relies on:
Selective solvents
Mechanical grinding
Gasification
Thermal cracking
Freezing
Hydrocracking involves:
Breaking heavy molecules in hydrogen atmosphere
Cooling light fractions
Removing salts from crude oil
Natural diffusion in pipes
Evaporating water
Isomerization converts:
Aromatics into naphthenes
Normal paraffins into isoparaffins
Gases into solids
Metals into oxides
Water into vapor
The Claus process is used for:
Production of hydrogen
Production of sulfur from H2S
Thermal decomposition of metals
Removal of nitrogen oxides
Extraction of oils
SO2 conversion in a reactor depends mainly on:
Catalyst properties and temperature
Temperature indicators
Noise frequency
Density fluctuations
Inaccurate mixing
Heat exchange processes are governed by:
Diffusion of solids
Temperature gradients
Radiation blocking
Gas condensation only
Electrical charge differences
Increasing turbulence during heat exchange generally:
Lowers heat transfer
Improves heat transfer
Reduces surface area
Eliminates convection
Prevents thermal conduction
Optimization of energy consumption focuses on:
Raising fuel sulfur content
Minimizing energy losses and improving process efficiency
Increasing random heat input
Disabling insulation on equipment
Maximizing manual intervention
In system analysis, feedback is needed to:
Remove safety controls.
Correct deviations in real time.
Increase random operation.
Reduce data accuracy.
Increase energy use.
A key advantage of system analysis is:
Narrowing scope to a single variable.
Considering complex interactions holistically.
Controlling mass flow.
Eliminating data collection.
Calculation of conversion only.
A mathematical model allows prediction of:
Weather patterns only.
Process behavior under given conditions.
Human activity.
Geological faults.
Electrical conductivity of metals.
In rectification, trays or packings provide:
Sound insulation.
Vapor–liquid contact surface.
Cooling of air.
Metal strengthening.
Chemical polymerization.
Pressure increase in absorption generally:
Reduces gas solubility.
Increases gas solubility.
Has no effect on absorption.
Changes in structure of absorbent.
Causes crystallization.
Adsorption capacity increases with:
Reduced surface area.
Increased surface area.
High salt concentration.
Low porosity.
Strong electrical charge.
Aromatic extraction efficiency depends on:
Random temperature fluctuations.
Solvent selectivity.
Air humidity.
Metal concentration.
Container shape.
Hydrocracking requires:
High hydrogen pressure.
Low vacuum levels.
Oxidation atmosphere.
Strong acid absorbents.
No catalyst.
In the Claus process, the main reaction converts:
H2S to methane.
H2S to elemental sulfur.
H2S to CO2.
H2S to SO3.
H2S to nitrogen.
Heat exchange efficiency improves when:
Fouling decreases.
Fouling increases.
Temperature gradient decreases.
Pressure is zero.
Flow is stagnant.
Minimizing energy consumption requires:
Uninsulated pipes.
Effective heat recovery.
High thermal losses.
Unstable operation.
Constant cooling.
In absorption, the driving force for mass transfer is:
Mass difference.
Concentration gradient.
Gas vibration.
Liquid viscosity change.
pH level.
A process is considered optimal when:
Maximum resources are wasted.
Cost and efficiency are balanced.
Only energy is minimized.
Operation is uncontrolled.
Reaction time is maximal.
Adsorption on activated carbon occurs through:
Chemical burning.
Physical adsorption forces.
Magnetic alignment.
Ionization.
Electrolysis.
Zeolites are widely used due to:
High density.
Selective ion-exchange properties.
Low porosity.
Inertness in water.
Random absorption.
Material balance allows calculation of:
Light reflection.
Input and output mass flows.
Electrical resistance.
Corrosion rate.
Acoustic noise.
Thermal balance helps determine:
Heat losses and heat distribution.
Fuel odor.
Electrical conductivity.
Steam dryness.
Air humidity.
System analysis contributes to:
Identifying isolated variables only.
Improving overall process performance.
Removing heat exchangers.
Increasing randomness in operation.
Decreasing data reliability.
Effective rectification depends on:
Complete mixing.
Achieving counter-current flow.
External cooling.
High viscosity of liquids.
Uneven temperature distribution.
Gas absorption is intensified by:
Reducing surface area.
Increasing contact surface.
Lowering concentration gradients.
Decreasing turbulence.
Stopping circulation.
Adsorption is most effective when:
Temperature is excessively high.
Adsorbent pores are large and uniform.
Adsorbent is melted.
Gas pressure is zero.
Flow is stagnant.
Energy optimization in processes aims to:
Increase thermal losses.
Reduce unnecessary heat consumption.
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Mathematical modeling supports:
Optimization of technological parameters
Cleaning of equipment
Noise suppression
Visual alignment
Changing controlled variables
Causes of failure in absorption equipment include:
Channeling and reduced contact area
Excessive pressure of fluid flow
High transparency
Outer wall integrity
Glass clarity
Parameter control in automation is based on:
Sensor feedback
Position of valves
Types of indicators
Manual visual inspection only
Controller output
Heat exchanger operating mode depends primarily on:
Flow rates and temperature differences
External force
Pipe diameter
Ambient noise
Operator actions
Material balance calculation ensures:
Conservation of mass flows
Removal of corrosion
Conservation of energy flows
Increase in viscosity
Elimination of pressure gauges
Heat balance calculation determines:
Distribution of heat flows
Degree of crystallization
Radiographic density
Surface roughness
Emission intensity
Distillation column balance requires:
Determining vapor and liquid flows
Only measuring temperature
Increasing tower height
Lowering column foundation
Adding inert gases
Sensors in process automation are used to:
Measure technological parameters
Change vessel geometry
Adjust product packaging
Increase insulation thickness
Monitor noise
Controllers in automation systems are responsible for:
Regulating parameters automatically
Painting equipment surfaces
Storing raw materials
Ventilation of rooms
Manual measurement only
SCADA systems allow:
Centralized monitoring and control
Formation of corrosion layers
Manual-only operation
Irregular heating
Permanent shutdown of automation
Adjustment of an automated distillation unit requires:
Tuning control loops
Random valve movements
Lowering all temperatures
Removing flow meters
Disconnecting sensors
Correction of process regimes is based on:
Analysis of experimental data
Daily reports
Quality standards
Routine volume measurements
Cylinder shape
Failures in rectification often occur due to:
Flooding or weeping of trays
Excessive product flow pressure
Strong magnetic fields
Random pressure decreases
Excessive feed flow pressure
Absorption process failures may result from:
Poor gas–liquid contact
High absorbent viscosity only
Excessive product aroma
Vessel volume mismatch
Unpainted pipelines
Chemical corrosion occurs due to:
Reaction with aggressive media
Low electrical voltage
Pressure fluctuations
Surface gloss
External sound
Thermal corrosion results from:
High temperatures causing metal degradation
Light heating
Small vibrations
Cold water contact
Manual cleaning
Heat exchanger failure commonly results from:
Fouling and reduced heat transfer
Random vibrations
Viscosity changes in working fluid
Low noise
Flow meter calibration
Defect prevention in chemical production requires:
Regular inspection and maintenance
Removing all sensors
Avoiding monitoring equipment
Random shutdowns
Increasing corrosion intentionally
Risk management in technological processes includes:
Identification and minimization of hazards
Increasing uncertainties
Avoiding documentation
Lowering reliability
Reducing alarms
Causes of defective products often include:
Deviations in process parameters
Feed temperature
Product shape
Product properties
Residence time
Accident prevention measures involve:
Implementing protective systems
Increasing pressure limits
Removing emergency valves
Raising temperature with control
Installation of alarms
Mathematical model construction begins with:
Formulation of initial assumptions
Measurement of equipment integrity
Adjustment of noise levels
Pressure regulation is influenced mainly by
Valve position and gas flow
External humidity
Wall thickness
Lighting level
Noise vibration
Temperature rise in reactors is controlled by
Coolant flow adjustment
Reflecting panels
Electrical wiring type
Ambient temperature only
Flammability of surfaces
Heat balance deviations often indicate
Increased thermal losses
High mechanical strength
Good corrosion resistance
Ideal efficiency
Improved structure
Distillation column inefficiency is often caused by
Incorrect reflux ratio
Outer surface corrosion
Column height
Number of plates
Pipe insulation thickness
Absorption process efficiency increases with
Larger contact surface
Reduced pressure
Irregular mixing
High absorbent crystallization
Random heating
Corrosion rates increase due to
High temperature and aggressive media
Pipeline transparency
Random painting
Low pH measurement accuracy
Noise vibration only
Preventing equipment failure includes
Monitoring temperature and pressure
Ignoring automatic controls
Reducing inspection frequency
Allowing uncontrolled heating
Removing safety devices
Risk minimization requires
Early detection of process deviations
Lowering monitoring precision
Reducing data collection
Increasing randomness
Ignoring pressure limits
Defective product formation is reduced by
Maintaining stable operating parameters
Decreasing monitoring accuracy
Reducing control loops
Randomly changing flows
Avoiding calibration
Mathematical models help evaluate
Process parameter influence
Product quality
Noise level
Shape of vessel
Process automation
Heat exchangers operate efficiently when
Heat transfer surfaces are clean
Noise is minimal
Fluids are viscous
Flow rates are high
External heat is applied
Pressure deviations in rectification lead to
Incorrect boiling points
Higher corrosion resistance
Reduced viscosity
Lower thermal conductivity
Increased vapour saturation
Automation improves
Stability and accuracy of processes
Productivity
Product quality
Selection of process
Conversion of feed
Heat balance must include
All heat inputs and outputs
Only internal reactions
External impact
Hess Law
Le-Chatelier principle
Risk analysis includes
Identifying possible failure scenarios
Measuring equipment width
Lowering pressure limits
Changing insulation thickness
Reducing process control
Heat exchanger fouling leads to
Lower heat transfer coefficient
Increased visual clarity
Reduced corrosion
Improved heat flow
Lower temperature gradient
Correcting technological regimes requires
Comparing actual and expected data
Visual inspection and diagnostics
Reducing measurement frequency
Increasing random fluctuations
Removing foulings
Distillation column operation depends on
Stable temperature and pressure profiles
Surface decoration
External air flow
Reduction of feed viscosity only
Increasing vessel brightness
Corrosion prevention can be achieved by
Using protective coatings
Lowering monitoring reliability
Increasing thermal load
Reducing pressure control
Prevention of leaks
Accident prevention requires
Regular inspection and protective systems
Removing alarm systems
Lowering safety margins
Continuously increasing flows
Recording pressure deviations
What is the main purpose of KAZMEMST?
To ensure the safety and well-being of employees in the workplace
To develop and promote quality management standards
To establish financial reporting standards
None of the above
To coordinate and oversee standardization activities in Kazakhstan
Which type of standards does KAZMEMST primarily focus on?
Occupational health and safety standards
Environmental management standards
Quality management standards
None of the above
KAZMEMST is a member of the International Organization for Standardization (ISO).
True
False
How does KAZMEMST contribute to international standardization efforts?
By adopting and implementing ISO standards in Kazakhstan
By developing its own unique set of standards separate from ISO
By collaborating with other national standardization bodies
None of the above
What is the role of KAZMEMST in ensuring product quality in Kazakhstan?
Conducting inspections and audits of manufacturing facilities
Certifying products that meet certain quality standards
Enforcing regulations and laws related to product quality
Collaborating with international organizations for quality assurance and standardization
All of the above
Which industries does KAZMEMST primarily focus on in terms of standardization?
Oil and gas
Construction
Agriculture
Healthcare
All of the above
How does KAZMEMST contribute to the safety of consumers in Kazakhstan?
By setting and enforcing product safety standards
By conducting regular safety inspections of consumer goods
By providing information and education on consumer safety
None of the above
All of the above
What is the significance of KAZMEMST's accreditation system?
It ensures that certification bodies are competent and impartial
It guarantees compliance with international standards
It provides financial support to businesses for standardization efforts
None of the above
All of the above
KAZMEMST only focuses on national standardization efforts and does not participate in international collaborations.
True
False
What is the official website of KAZMEMST where individuals and businesses can access information on standards?
www kazmemst.org
www iso org
www osha gov
None of the above
www tco kz
How does KAZMEMST contribute to sustainable development in Kazakhstan?
By promoting environmentally-friendly practices through standards
By supporting research and development in renewable energy
By collaborating with international organizations on sustainability initiatives
By ensuring corporative agreement with companies
All of the above
Physical distillation also known as..?
Fractional distillation
Bubble cup tray distillation
Separation
Catalytic Cracking
All answers are correct
Important property for gasoline
Viscosity
Volatility
Solubility
Conductivity
Precision
What is the primary function of a spectrometer?
To measure temperature
To analyze the chemical composition of substances
To generate electricity
To record seismic activity
To check the level
Which spectral region is typically analyzed by an infrared (IR) spectrometer?
Ultraviolet
Visible
Infrared
X-ray
Spectrometer
What does the term "GC-MS" stand for in the context of gas chromatography
Gas Chromatography-Magnetic Spectroscopy
Gas Chromatography-Mass Spectrometry
Gas Chromatography-Molecular Structure
Gas Chromatography-Molar Sensitivity
Gas Chromatography-Metro Selectivity
What time is commonly used to identify and characterize compounds in gas chromatography
Refractive index
Retention time
Color intensity
Weight in grams
Molar mass
What is the primary purpose of calibration in measurement instruments?
To clean the instrument
To adjust the instrument's sensitivity
To discard the instrument
To record measurement data
To ensure stability of equipment
Which component of a mass spectrometer is responsible for ionizing the sample molecules?
Detector
Analyzer
Ionization source
Mass filter
Sensor
