A randomized 100 question test from a pool of 1236 questions, good luck!
In the WHMIS system, "Oxidizing material" is represented by which hazard class? Choose from the following answers.
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the addition or release of air from the actuator to achieve proper plug placement?
"An angle that measures less than ninety degrees but more than zero degrees" is a description of which mathematical term?
From the information given in the diagram below, what is the voltage drop over R1, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
In the WHMIS system, "Other poisons" is represented by which hazard class? Choose from the following answers.
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
All objects have mass which is affected by gravity. Which of the answers below represents the SI approximate value for acceleration due to gravity?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed medical air system?
Isolate the following equation for "v": d=vt
When servicing or troubleshooting a valve there are several terms that are used for specific actions. Which of terms below would be associated with the verification an individual isolation?
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for receiving an output signal and converting that into a PV value?
Choose the answer below that has the words in order to correctly fill in the blanks. "A per unit volume of free electrons that is _______, offers ______ resistance to current"
Gauge pressure is calculated by?
When dealing with servicing or maintaining of valves, there are some terms that need to be understood. Which of the terms below is best described as a mechanical device that physically prevents the transmission or release of energy?
If a closed tank is pressurized to 103.345 kPa and the pressure gauge at the bottom of the tank reads 145.456 kPa, what head (in feet) of a liquid with a R.D. of 0.37 is contained in the tank?
"The heat absorbed by a unit mass of a given solid at its melting point that completely converts the solid to a liquid at the same temperature", is the description of which physics term?
There are numerous types and styles of valves in industry. Which of the actuators below best represents the following picture?
All safety enclosures are tested in the factory to certify the maximum pressure released in an explosion that it can withstand. Which of the answers below would describe the testing required for a flame-proof enclosure?
When 20 C passes by a point in a wire in 12 seconds, what is the current in amperes?
If a battery has a rating of 75 Ah, theoretically it could provide 6.8 A for how long?
Movement of the actuator stem by air pressure applied to a flexible membrane is a characteristic of which actuator?
State the number 45.7258 x 10¹¹ using engineering notation and round the answers to three significant digits.
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 145 kPag?
If angle "Y" is equal to 28 degrees, solve for angle "X"
(310102n) The Canadian Electrical code (CEC) encompasses all standards for electrical/instrumentation work. Which of the sections of that code below would relate best to the grounding of less that 50V circuits?
A parallel circuit reacts in specific ways to the addition of a resistive load. Which of the answers below best describes the reaction to an decrease in resistive load?
In the SI system, what is the fundamental hydrostatic pressure equation
When wire rope is used for lifting purposes, there are several safety factors involved. Which of the answers below best represents the safety factor for transporting workers?
Of the answers below, which one is a disadvantage of a Pinch valve?
What are the three main elements of a regulator?
If you have 40 hammers and 50 chisels, what is your ratio of hammers to chisels?
Convert ¹⁸⁄₅ to a decimal.
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, verifying a physical lock or securing method is placed on all isolating devices, would be which of the steps below?
There are many terms associated with "Energy". Which term below is correctly described as, "is energy stored in a spring."?
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁n₂T₂=P₂V₂n₁T₁"?
"Which of the electrical terms below can be best described as "consisting of one or more electrochemical cells, which transform stored chemical energy directly into electrical energy."
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop over R3?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be referred to as a "Van Stone" flange connection?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would move as the direct result of the rotation of the torque shaft?
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is the power absorbed by R3?
(310101c) For higher working pressures, generally the wall thickness of tubing will increase. Which of the answers below would best relate to the effect of a tube's increased wall thickness?
"The characteristic published by the manufacturer, based on tests performed in a closed system ensuring consistent flow behavior before installation." is the best description of which of the following terms?
In a simple circuit, if I= 6 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
If a closed tank is pressurized to 20 psig and the pressure gauge at the bottom of the tank reads 25 psig, what head (in meters) of a liquid with a R.D. of 0.65 is contained in the tank
(310105d) The amount of power an applied force uses is a measurable quantity. Which of the units below would be equal to 1 hp of power?
"An electric circuit in which the normal path of current has been interrupted." is the best description of which of the terms below?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "that at the same temperature and pressure, equal volumes of all gases contain the same number of molecules."?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of blue represent?
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the enclosures inlet airflow rate be measured for purging times?
If field servicing, or removing, a control valve from a piping system it is important to recognize the piping isolations. Which of the isolations below correctly identifies the following picture?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 1 MPag?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would use materials that were resistant to corrosion in it's construction?
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would best be used when connecting 4 tubes together?
Many electrical properties are a measured quantity, needing a unit of measurement. Which of the units below would be the correct unit of measurement for inductance?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosures classification must be reduced from Class I, Zone 1 to non-hazardous?
There are several types of measuring elements used in industry. Which of the answers below best represents the letter "C"?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of increasing hardness, but a reduction in ductility?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Hydrogen belong to?
"An adjustment that progressively increases or decreases reading over the scale, but does not change the base point" is the definition of which adjustment?
The volume of a rectangle is calculated with which correct equation?
State the number 0.05634 x 10⁻¹³ using scientific notation and round the answers to three significant digits.
There are several different notations on a length of pipe. Which of the notations below would have the largest pipe diameter?
State the number 3521.785 x 10³ using decimal notation and round the answers to three significant digits.
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
The circumference of a circle is calculated with which correct equation?
A tight seal to the face is required by all respirators. This is a critical element in which of the following type(s) of respirator? Of the options below, choose the best answer.
A pressure gauge at the bottom of a tank indicates a pressure of 7.9 psi. The relative density of the liquid is 0.87. What is the depth of the liquid in feet?
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would best be used when tubing around a tight corner?
Alloy steels are very common in industry. Which of the types of alloy steel would "Austenitic" piping be?
Solve for the hypotenuse.
Interpretation and use of correct installation standards is vital to the success of an instrument technician. Which of the associations below have set out the standards that must be followed?
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
The industry committee network is made up of three bodies. Which of the bodies below acts as a link between the AIT Board and the LACs?
There are many terms for specific electrical components. Which of the components below is best described as a passive electronic component that stores energy in the form of an electrostatic field?
"Is done when a force that is applied to an object and moves that object." is a description of which mathematical term?
If a fitting increases in cost from $675 to $890, what is the percentage increase of the fitting?
A parallel circuit reacts in specific ways to the to an open circuit. Which of the answers below best describes the reaction of the total line current to an open circuit?
Even though explosion safety equipment must be able to deal with extreme pressures, maintenance must also be allowed to occur. Which of the enclosures below would allow for both maintenance and protection from explosion?
The volume of a cylinder is calculated with which correct equation?
There are numerous types and styles of valves in industry. Which of the additions to a scotch yoke valve allows for proportional positioning?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a pressure sensing diaphragm in the creation of an output signal?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
The CEC generates a gas grouping based on the potential combustion, and results of combustion. Which of the groups below would non-metallic dust that is electrically conductive belong to?
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be best suited to a valve that would be connected to a flange that was one-holed?
(310102n) The Canadian Electrical code (CEC) encompasses all standards for electrical/instrumentation work. Which of the sections of that code below would relate best to the installation of cathodic protection?
The ISA has defined 3 types of installations for purge/pressurization for hazardous applications. Which of the types below would an enclosures classification be reduced from Class I, Zone 1 to non-hazardous?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type DWV tube type typically have?
From the information given in the diagram below, what is the voltage drop over R4, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
Which of the following is not affected by a positioner?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, isolating all sources of energy to the work area would be which of the steps below?
If a pressure change of 20 kPa to 90 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 5.5 cm and the effective area of the diaphragm is 0.065 m^2
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the thorough, precise safety details for employers?
There are several different types of drills tools used in industry. Which of the drills below would be best used for exacting work, hole no bigger than a ½" in diameter?
"This workplace hazard consists of substances, mixtures and materials that can be classified according to their health risks and dangers." This statement best describes which of the following hazard groups?
When higher operating pressures are used, this type of actuator produces higher thrust than diaphragm actuators.
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop at R1?
Before entering a confined space for the first time or re-entering after a break, it is a good practice to do which of the following?