A randomized 100 question test from a pool of 1236 questions, good luck!
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a barrier that blocks any excess voltage from gaining access to a hazardous area?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, testing of the isolation to all sources of energy to the work area, would be which of the steps below?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
Many electrical properties have specific symbols attached to them. Which of the symbols below would be the correct for inductance?
State the number 0.003402 using decimal notation and round the answers to three significant digits.
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the outlet airflow rate be measured for purging times?
In soldering there are many terms used. Which of the terms below would best describe a poorly formed soldered joint?
An I/P transducer is a positioner.
Explosion-proof equipment has several components that make it effective. Which of the components below is a requirement for equipment to be considered explosion-proof?
There are several different committees in the Alberta apprenticeship system. Which of the committees below would be directly responsible for resolving any disputes between employer and apprentice?
How many electrons does 134.5 x 10¹⁹ represent?
Batteries come in two common varieties. Which of the terms below can relate best to a non-rechargeable cell?
CSA approved head, eye, and foot protection is required for all workers. This is best legislated by which of the following acts?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the least common of those methods?
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
What is the name of the part of a drill bit that gets fitted into the drill spindle?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be use "J" as it's unit of measurement?
Which organization sets standards for boots and safety glasses in Canada?
An instrument technician sometimes has to do calibrations while the process is still running. Which of the terms below identifies a calibration done on a live process?
(310104d) Control valves have a number of accessories that they can use for a variety of applications. Which of the answers below would be best reflect the common accessory for valve plug placement accuracy?
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a refrigeration system?
Chart recorders have a couple of specific applications. Which application below would best describe the charting of results from a flow rate close to an orifice plate?
If a battery has a rating of 75 Ah, theoretically it could provide 6.8 A for how long?
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for converting a measured PV into an output signal?
(310104d) There are several features available on valve positioners in industry today. Which of the features below can be best described as one that uses negative feedback in it's operation?
"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?
Modification of certain safety enclosures by mechanical means is allowed in certain conditions. Which of the answers below would describe the conditions is required for modification to an explosion-proof enclosure?
"2+(9+7)=(2+9)+7" is an example of which mathematical law?
(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 Class 1 circuits that are controlled remotely?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "A"?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous biohazardous material?
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is the power delivered by the battery?
What are the three areas of WHMIS?
If a pressure change of 20 kPa to 100 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 3.5 cm and the effective area of the diaphragm is 0.05 m^2
There are several different types of carbon steel in any piping system. Which of the types below would have more than a 0.6%% carbon content?
Pick the answer that will fill the blank. "_______ of the voltage would appear across the open circuit in a ______ circuit."
If a pressure gauge is reading 54 kPag and the local atmospheric pressure is 99 kPaa, the the absolute pressure gauge reading will be?
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 increase in resistive load?
"Energy" is a calculated quantity. Which of the units below would be used as the measurement of "Energy"?
There are several different notations on a length of pipe. Which of the notations below would have the largest pipe 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?
1 kPa is equal to _____ psi
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the flexibility of operating modes?
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate mass?
There are many studies on how pressure and force affect fluids. "Fluid volume does not affect pressure." is one of the principles of which answer below?
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
(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 3 tubes together?
A fire is burning in a pile of weathered, oily blankets. Which of the following extinguishers should you use to fight this fire?
A pneumatic level transmitter, with an output range of 20-100 kPa, is being used to assess the fluid level in a cylinder though an input range of 0-14 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
"A quantity having direction as well as magnitude," is a description of which mathematical term?
If a pressure change of 20 kPa to 60 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 7.5 cm and the effective area of the diaphragm is 0.09 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 workers rights and responsibilities?
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an air core is less preferable than an iron one.
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as both a measuring and loading element?
The CEC generates a gas grouping based on the potential combustion, and results of combustion. Which of the groups below would other dusts that are combustible belong to?
If there was a need to control the process pressure upstream of the regulator, which one of the devices below would be used?
Of the types of link and lever calibration methods below, which one requires only one type of adjustment?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of traps dissolved oxygen and enhancing casting characteristics?
With the proper formula, "Work" is a measurable quantity. Which answer below represents the "work" part of that equation?
"An element or device which receives information in the form of 4-20 mA and coverts it to information in the form of 3-15 psig." is the best description of which of the terms below?
"This physical factor within the environment that harms the musculoskeletal system." This statement best describes which of the hazard groups below?
A battery has a rating of 80Ah, this means it can supply
Covert 34.5 kPa to psi.
If a closed tank is pressurized to 114.345 kPa and the pressure gauge at the bottom of the tank reads 165.456 kPa, what head (in feet) of a liquid with a R.D. of 0.83 is contained in the tan
Ohm's law states that:
A mass of 6 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
In the WHMIS system, "Flammable and combustible material" is represented by which hazard class? Choose from the following answers.
From the information given in the diagram below, what is the total parallel resistance of the circuit?
"Having only magnitude, not direction, such as distance", is a description of which mathematical term?
When selecting a hammer to use, what would "weight of head" help determine?
Scaffolds use is daily occurrence at most job sites. Any scaffold that is constructed must be designed to handle _____ times the potential load placed on it. Use that answers below to correctly fill in the blank.
If a battery has a rating of 60 Ah, theoretically it could provide 3.3 A for how long?
If a battery has a rating of 120 Ah, theoretically it could provide 12 A for how long?
A pneumatic level transmitter, with an output range of 20-100 kPa, is being used to assess the fluid level in a cylinder though an input range of 0-12 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
Factors affecting induced voltage include:
With a reverse acting actuator, as the pressure increases:
If, for every 20 C of charge, 60 J of energy is available, what is the voltage?
Covert 3 ⅘ to an improper fraction
Heat is based on the movement of molecules. Which of the answers below correctly fills the blank in the following sentence, "Temperature is the measurement of the average _________ of the movement of molecules."
Class I, Zone 1 locations can use i, ia and ib intrinsically safe equipment. Which of the answers below correctly identifies the number of faults that the "i" equipment can withstand?
Reduce ¹⁵⁄₄₅ and state as a proper or mixed fraction.
There are many electrical terms that have symbols to describe them in equations. Which of the terms below is best referred to as "Ꜫᵣ" in an equation?
(310105i) Any solid has inherent properties associated with it. Which of the terms below would best represent the final amount of stretch or elongation that the material undergoes during tensile testing?
Solve for the hypotenuse.
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as electrical/electronic circuitry that is incapable, under normal operating conditions, of causing ignition of a specified flammable gas-air, or vapor-air,mixture?
(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?
If the total error is 1.9 and the dead band error is is 0.8, what is the hysteresis value?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type K tube type typically have?
If a closed tank is pressurized to 121.345 kPa and the pressure gauge at the bottom of the tank reads 175.456 kPa, what head (in feet) of a liquid with a R.D. of 0.56 is contained in the tan
Determine the voltage V(ab) with R1=70k ohms, R2= 100k ohms and R3= 360K ohms, with a current of 0.754 mA
Isolating process lines with a physical barrier is one of the steps for safe field servicing of a control valve. Which of the blank types below would best be described a physical barrier between two flanges of sufficient diameter to fill the entire diameter of the pipe to prevent the passing of material beyond that point?
Determine x if 5:16=x:128.
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of blue represent?
"A simple circuit for measuring an unknown resistance by connecting it so as to form a quadrilateral with three known resistances and applying a voltage between a pair of opposite corners." is the best description of which of the terms below?
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would have two tube ends in line and one pipe connector?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 6 cm diameter filled with gas?
Some enclosures have removable coverings to allow maintenance work. Which of the enclosures below would have a round cover?
Which are the two major categories of pressure regulators?