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Worksheets4 2 копия
Total questions: 39
Worksheet time: 20mins
What is a key factor in achieving uninterrupted equipment operation?
Increasing production speed
Performing timely preventive maintenance
Installing larger motors
Reducing the number of operators
Using cheaper spare parts
Which of the following contributes most to material efficiency?
Replacing equipment every year
Monitoring and adjusting process parameters
Increasing storage space
Reducing the number of cleaning cycles
Hiring more operators
What could indicate an imbalance in mass flow within a process?
Slight changes in color of the product
A discrepancy between input and output weights
A decrease in maintenance requests
A change in room temperature
A drop in staff attendance
What aspect of electricity use most affects overall efficiency?
The type of switchgear installed
The distance from the power supply
The energy consumption per unit of product
The time of day power is used
The voltage fluctuations in the control room
Which approach improves fuel consumption management?
Recording actual usage versus planned usage
Increasing fuel delivery frequency
Using heavier fuel types
Insulating only pipe joints
Switching to backup tanks only
What is the purpose of calculating a material balance?
To determine fuel type
To organize shift schedules
To account for all input and output flows
To calculate machine RPM
To check filter age
A decrease in overall process yield could most likely indicate:
Better mixing
Inefficiency in material usage or losses
Improved cleaning cycles
Higher energy conversion
Excess cooling
What would an economic analysis of a chemical unit include?
Ratio of costs to useful output
Type of control panel used
Operator skill evaluation
Tank diameter
Flow direction
Which of the following best describes a process with good economic efficiency?
High energy input, high waste
Low product quality, low cost
Maximum operator hours
Optimal output with minimal resource use
Long start-up duration
Which strategy helps to improve equipment economic performance?
Reducing unplanned downtime
Increasing equipment load permanently
Avoiding scheduled inspections
Using generic spare parts
Increasing chemical dosage
What is the role of automation in modern process plants?
To replace all human workers
To ensure process consistency and reduce human error
To eliminate need for training
To increase paperwork
To slow down production for safety
A good control system should primarily:
Increase noise tolerance
Maintain stable process conditions
Enable quick manual override only
Be installed in every office
Operate without sensors
Why is temperature control critical in chemical reactions?
It determines final packaging size
It helps paint the product evenly
It affects reaction rates and product quality
It prevents software updates
It maintains pipe thickness
A sudden drop in pressure could most likely suggest:
A leak or equipment failure
Increased operator input
A software update
Better product yield
High product viscosity
What is the main reason to maintain pressure control in reactors?
To manage staff comfort
To avoid overpressure hazards and ensure process safety
To decrease noise
To increase gas color clarity
To store more liquid
Which situation might indicate a faulty level sensor?
Stable temperature
Sudden tank overflows without alarm
Increased product purity
Fast heating
Constant flow rate
Why is maintaining liquid level in a separator important?
To allow easier cleaning
To ensure phase separation and avoid contamination
To reduce electricity usage
To control building temperature
To lower filter wear
A gradually decreasing flow rate in a process might indicate:
An increased budget
More operators working
A developing blockage or fouling
Stable process conditions
Good raw material quality
What is the primary role of flow controllers in production?
Adjusting staff attendance
Increasing tank wall thickness
Logging operator names
Regulating movement of fluids at desired rates
Replacing manual inspections
Which device is best suited for regulating feed into a distillation column?
Flow controller
Light sensor
RPM indicator
Voltage converter
Humidity switch
A consistent discrepancy between setpoint and actual temperature could be due to:
Material cost
Controller miscalibration or failure
Operator experience
Pipe color
Scheduling error
What characteristic is essential in a temperature controller?
Noise immunity
Color-coded display
Fast and accurate response to changes
Large physical size
Solar power source
What can reduce the accuracy of pressure measurement?
Sensor fouling or drift
Operator fatigue
Shorter cables
Overfilled tanks
Filter upgrades
In automated control loops, the setpoint is:
The desired target value for the process parameter
The current ambient temperature
The valve diameter
A report generated weekly
Randomly selected
What does a PID controller adjust?
The billing rates for utilities
The process output based on deviation from setpoint
The lighting of the control room
Tank color
Employee tasks
What is the first step in troubleshooting an unstable level reading?
Adjusting product pH
Lowering production speed
Checking for foam or sensor faults
Replacing pipe insulation
Changing process recipe
What function does the feedback signal serve in a control loop?
Track holidays
Count alarms
Provide real-time comparison with the setpoint
Store historical reports
Measure insulation thickness
How can one verify the functionality of a pressure transmitter?
Measure humidity in control room
Compare output with a calibrated gauge
Inspect valve color
Switch to manual mode
Ask the operator
What should be reviewed to ensure energy-efficient operation of a motor-driven pump?
Age of the paint coating
Number of hours since installation
Power consumption versus flow output
Shape of pump housing
Operator certification
Which action helps minimize unplanned equipment downtime?
Increasing the number of shifts
Extending working hours
Performing regular condition-based maintenance
Switching to semi-automatic control
Adding redundant piping
What does the economic efficiency of a process depend on?
Number of safety drills conducted
Ratio of output value to total operational cost
Frequency of employee bonuses
Number of control valves installed
Maintenance staff count
What is a sign of a well-balanced chemical mass flow process?
Slight vibration in transfer lines
Increased steam loss
Variation in raw material density
Rising product temperature
Equal mass of input and output within tolerance
Which indicator best reflects fuel usage efficiency?
Fuel tank diameter
Fuel delivery schedule
Temperature of exhaust gases
Fuel consumption per unit of product
Number of heaters installed
When reviewing a technical specification for a pump, which parameter is most important for ensuring process continuity?
External paint coating type
Manufacturer country
Gearbox type
Flow rate capacity at specified head
Frame material
Which of the following would likely improve the energy efficiency of a heating system?
Lowering ambient air temperature
Installing variable-frequency drives on pumps
Adding a second boiler
Increasing pipe diameter randomly
Shortening maintenance intervals excessively
What could cause fluctuations in product flow during normal operations?
Constant tank pressure
Clean filter elements
Malfunctioning flow control valve
Stable feed composition
Continuous operator supervision
Why is monitoring the level in storage tanks critical to process reliability?
Prevents overflows and supply interruptions
Helps identify valve color changes
Minimizes operator breaks
Increases building temperature
Ensures staff identification
A key component of ensuring uninterrupted operation in automated systems is:
More frequent staff meetings
Use of handwritten logs
Continuous monitoring through feedback control loops
Increasing safety stock only
Reducing number of controllers
What might be a consequence of temperature controller malfunction?
Deviation in product specifications
Overcharging of the cooling unit
Failure of the lighting system
Delay in shift changes
Increase in valve lubrication
