Instrument Devices

What is the primary function of a gauge?

• Control the flow of a process variable.

• Indicate the current value of a process variable

• Generate power for the process

• Alarm operators about process

What are the two main types of process gauges?

• Digital and mechanical

• Analog and digital

• Pressure and vacuum

• Absolute and relative

What is the difference between a gauge and a transmitter?

• A gauge only displays the value, while a transmitter sends a signal to a remote location

• A gauge is used for gases, while a transmitter is used for liquids

• A gauge is more accurate than a transmitter

• There is no difference, they are the same thing

How can you tell if a process gauge is malfunctioning?

• The reading is outside the normal range

• The needle is stuck or erratic

• The gauge is leaking fluid

• All of the answer

What factors should be considered when selecting a process gauge for a specific application?

• The range of the process variable

• The accuracy and resolution required

• The operating environment and conditions

• All of the answer

What are some common causes of errors in process gauge readings?

• Zero drift, calibration errors, environmental factors, and operator errors

• Lack of maintenance, incorrect reading of the scale, and external vibrations

• All of the answer

• None of the answer

What does the accuracy of a process gauge indicate?

• The range of values the gauge can measure

• The smallest change in the process variable the gauge can detect

• The difference between the measured value and the true value

• All of the answer

What can happen if a process gauge fails?

• The process could become unsafe

• The equipment could be damaged

• The product quality could be compromised

• All of the answer

What is the purpose of a gauge calibration?

• To adjust the gauge's range

• To ensure the accuracy of the gauge readings

• To convert the gauge readings to another unit

• To protect the gauge from damage

What safety precautions should be taken when working with process gauges?

• Wear appropriate personal protective equipment (PPE)

• Do not apply pressure beyond the gauge's range

• Be aware of potential hazards such as high pressure or toxic materials

• All of the answer