DPK10202 IED W14

State the meaning of LZT in tanks and equipment as shown in the figure attached.

• Level Safety Transmitter

• Low Liquid Level

• High Liquid Level

• Low Switch-on Transmitter

This drawing shows an overview of a plant, unit, or process in the easiest form possible.

• Process Flow Diagram (PFD)

• Piping and Instrumentation Diagram (P&ID)

• Block Flow Diagram (BFD)

• Hook-up Diagram

Below are the criteria of the Block Flow Diagram (BFD) except

• Operation/Equipment are represented with blocks.

• One block can represent a single equipment or operation.

• Piping identification are include in the drawing.

• If lines cross, the horizontal line is continuous and the vertical line is broken.

"It is a device responsible for alerting plant operators about an upset condition of the process variable. This device typically consists of sound and light outputs that attract the attention of the plant operators."

The statement above refers to which instrument component?

• Controller

• Sensor

• Alarm

• Transmitter

"It is a device that receives data from a measurement instrument, compares that data to a programmed set point, and if necessary, signals a control element to take corrective action."

The statement above refers to which instrument component?

• Alarm

• Control Valve

• Sensor

• Controller

"It is the first element in a process control loop. They are also often called the primary element. This device is used to measure the value of the process variable."

The statement above refers to which instrument component?

• Sensor

• Controller

• Control Valve

• Recorder

"A device that converts a reading from a sensor into a standard signal and transmits that signal to a monitor or controller."

The statement above refers to which instrument component?

• Sensor

• Transmitter

• Controller

• Control Valve

"A device that records the output of a measurement device. The information this device collected is very useful in monitoring plant performance and in quality control of the products."

The statement above refers to which instrument component?

• Recorder

• Controller

• Transmitter

• Sensor

State the meaning of the following abbreviation:

PIA1001

• Pressure Indicator Analysis

• Pressure Indicating Analyzer

• Pressure Indicating Alarm

• Pressure Indication Alarm

Below are the correct statements to explain the similarity of Pressure Safety Valve (PSV) and Pressure Relief Valve (PRV) EXCEPT

• A PRV opens gradually in relation to the pressure, while a PSV is opened suddenly once the pressure hits a certain level in order to avoid over pressurization and a potential process safety incident.

• Relieve the excess pressure from the system by opening automatically and they get closed automatically when the pressure in the system normalizes.

• Used for process safety.

• Used commonly in industries for safety purpose to avoid overpressure.