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Automation Quiz
Test your knowledge of the automation industry with questions from ISA certification programs.
250 Results Found
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FeatureAutoQuiz: What Is the Cause of Cavitation in a Liquid Flow Stream?
When fluid drops below a liquid's vapor pressure, a gas is formed. As fluid moves downstream to where the fluid pressure is greater than the vapor pressure, it "collapses" back into a liquid. -
FeatureAutoQuiz: How to Read a Gauge Pressure Transmitter
At zero gauge pressure in the steam line, you are essentially suppressing (pushing) the transmitter output back down to zero after the system reaches equilibrium. The transmitter will read that impuls -
FeatureAutoQuiz: Failures of Complex Systems in SIS Design and SIL Selection
A fault tree analysis begins with the "top event," which is the result of a number of basic events that contribute to, or initiate, the system failure. -
FeatureAutoQuiz: Loop Tuning Terminology for Change in Amplitude
The common method of judging tuning is known as the "quarter wave decay" method. It has been shown if a loop is tuned so the oscillation decays with each wave being one quarter of the previous wave, i -
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AutoQuiz: Industrial Applications for Nonincendive-Rated Field Wiring
Nonincendive is allowed in Class 1, Division 2; Class 1, Zone 2, and Non-hazardous rated areas. Use in higher hazard areas, such as Division 1, Zone 1, or Zone 0 areas, is not allowed. -
FeatureAutoQuiz: Standard Wiring Color for Type K Thermocouple
Type K (chromel–alumel) is the most common general purpose thermocouple with a sensitivity of approximately 41 µV/°C. -
FeatureAutoQuiz: What Is the Liquid Flow Condition Where Falling Static Pressure Causes Formation of Vapor Bubbles?
The first stage of cavitation is the formation of vapor bubbles within the liquid system because of the fluid's static pressure falling below the fluid vapor pressure -
FeatureAutoQuiz: What are the Advantages and Disadvantages of RTDs?
Resistance temperature detectors require a temperature transmitter to function. This is not a disadvantage of an RTD, since its function does not require a temperature transmitter to be installed. -
FeatureAutoQuiz: How to Interpret Relay Logic for a Pump Control Switch
When a pump control switch is in auto, the storage tank low level switch or the pressure tank high level switch can stop the pump. -
FeatureAutoQuiz: How to Diagnose Industrial Pressure Sensor Errors
If a pressure sensor/transmitter is giving a non-linear response, replacement of the sensor and/or the transmitter will be required. -
FeatureAutoQuiz: Motor Shaft Speed Relationship to Frequency and Number of Poles
The shaft speed of a motor is directly proportional to the frequency and is inversely proportional to the number of poles. -
FeatureAutoQuiz: How to Measure Tank Differential Pressure
A tank level is measured using a differential pressure transmitter (DPT-1) and a bubbler tube. The tank is vented to atmosphere. -
FeatureAutoQuiz: Nonhazardous Pressurization Systems
A Type X pressurization system reduces the classification within the enclosure from Division 1 to nonhazardous and, therefore, permits the use of ignition-capable equipment inside the enclosure. -
FeatureAutoQuiz: Identify the Function of a P&ID Symbol
In a P7ID diagram, a "circle" enclosed in a "square" indicates it is an instrument that has a shared display or a shared control. -
FeatureAutoQuiz: What Is the Best Location in an HMI for the Graphic Display of a Distillation Column?
A distillation column refers to one piece of equipment in the distillation process, which will contain several loops. -
FeatureAutoQuiz: Can You Identify the P&ID Symbol?
A "circle" enclosed in a "square," which indicates it is an instrument with a shared display or a shared control. -
FeatureAutoQuiz: What Is PID in a Control Loop?
The PID term as described refers to the loop control technique used in controllers. A PID control loop includes proportional, integral, and derivative functions to control the process. -
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FeatureAutoQuiz: Can You Identify Instrument Line Symbols?
ISA-5.1-1984 (Revised 1992) - Instrument Symbols and Identification. -
FeatureAutoQuiz: How to Minimize Electrical Interference with AC Power and DC Signal Wiring in a Control Panel
Crossing the wires at 90 degrees will minimize the exposure of the wires to each other and therefore minimize the effects of interference. -
FeatureAutoQuiz: What Is an Industrial Process Variable?
The controlled variable by definition is the variable that the control system attempts to keep at a "set point" value. -
FeatureAutoQuiz: How to Choose Best Method for Level Measurement
Radar does not depend on temperature or composition of a fluid as long as the beam is narrow and the dielectric constant of the fluid is greater than two. -
FeatureAutoQuiz: How to Measure Pressure in a Tank
Perform the calculation using dimensional analysis from conversion tables 33.9 ft water equals one atmosphere equals 14.696 lbf /in2 (psi). -
FeatureAutoQuiz: How to Calculate the Rated Torque for a Motor
The volts-per-hertz ratio (V/Hz) controls the torque of a motor. -
FeatureAutoQuiz: Standard Range for Pneumatically Transmitted Signals
For the sake of ease and safety, Industry recognized it is better for an operator to monitor and control processes in a more convenient and protected place -
FeatureAutoQuiz: How to Measure the Resistance of a Conductor
The resistance of a length of a conductor can be determined using the specific resistance and the cross-sectional area by using the equation R = r L/A -
FeatureAutoQuiz: Level Reading with a Differential Pressure Cell
If a differential pressure cell is not at an elevation that corresponds to zero percent level in a tank, calibrate to account for difference in elevation. -
FeatureAutoQuiz: Which Control Valve Style Is More Likely to Develop a Blockage?
Ball, butterfly, and pinch valve body style have straight-through flow, and they are less likely to develop blockage. -
FeatureAutoQuiz: How to Calibrate a Magnetic Flowmeter
Magnetic flowmeters use Faraday's law of magnetic induction as the basis of their operation. -
FeatureAutoQuiz: What Are Acceptable Hazardous Location Protection Techniques for Industrial Areas?
Hazardous location protection techniques are defined by NEC 500.7 (NEC 2002 Code).