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 conditions signals received or transmitted to a hazardous area
Section 315(1), (2) and (3) covering guardrails can be found in which piece of legislation below?
When allowing power to flow to a device, purging may be required beforehand. Which of the answers below best represents the complete volumes of air with positive pressure?
What item would be used on a pneumatic system to speed up the pneumatic signal?
Batteries come in two common varieties. Which of the terms below can relate best to a non-rechargeable cell?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
Which pilot valve has two common supply connections, and two connections for output?
If a closed tank is pressurized to 125.345 kPa and the pressure gauge at the bottom of the tank reads 186.456 kPa, what head (in feet) of a liquid with a R.D. of 0.05 is contained in the tan
Before entering a container to work, your Journeyman asks for a gas test to be done. The foreman agrees and puts the sniffer close to the floor of the container. Of the following answers, which gas would he be testing for?
(310104a) There are numerous components to a valve. Which of the components below would best be referred to as a gland that seals the dynamic portion of the valve against leakage?
In the WHMIS system, "Dangerously reactive material" is represented by which hazard class? Choose from the following answers.
"This piece of legislation came into effect in 1915. This act deals primarily with compensation, medical aid and rehabilitation of a worker due to a job-related injury." Which of the answers below is best described by this statement?
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
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?
From the information given in the diagram below, what is the voltage drop over R2, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
Of the answers below, which one is a disadvantage of a Pinch valve?
(310102g) Energy can transition between various forms. Which of the terms below can be best described as the percentage of total energy input to a machine or equipment that is consumed in useful work and not wasted as useless heat?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a medical gas system?
There are several grades of iron and steel. Which of the answers below best represents a material that is best suited for castings because of it's superior flow characteristics when melted?
In Unified National nomenclature what does the "12" represent in this bolt class- 1/2-12-UNC 2B
What are the 2 major parts of a control valve?
A piece of metal with a length 13 1/4" is cut into 2 pieces. If one piece is 5 3/4' long, determine the length of the other piece.
(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?
What is the SI unit of force?
"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."
Solve for the hypotenuse.
There are several advantages and limitations to installing a galvanically isolated barrier as an intrinsically safe barrier. Which one of the answers below can be considered an advantage of this style of barrier?
"A way of concisely showing the relationship between two quantities." is a description of which mathematical term?
The statement, "Whatever is done to one side of an equation, can be done to the other side of the equation" is false.
What size of resistor must be connected in series with a 10k potentiometer to get an output of 7V to 20V if the supply of the circuit is 20V?
"The heat absorbed per unit mass of a given material at its boiling point that completely converts the material to a gas at the same temperature", is a description of which physics term?
60% of 54 is what?
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?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the period when the capacitor gets to 5τ?
Convert ⁸⁄₁₉ to a decimal.
What is the smallest charged particle?
Which of the following measurements cannot be performed by a sliding caliper?
Which term can be defined as the pressure measured from absolute zero?
The ability of a material to concentrate magnetic lines of force within a material is called?
The trigonometric ratio of sine is calculated with which mathematical equation?
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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁n₂T₂=P₂V₂n₁T₁"?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "4"?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a fixed restrictor as well as a feedback bellows in the creation of an output pressure signal?
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 a flame-proof enclosure?
The CEC generates a dust grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would metallic, hazardous dust belong to?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
Piping material that is non-ferrous is most common in lower temperature services. Which of the answers below would best be classified as a "non-ferrous" material?
Isolate the following equation for "v": d=vt
Gauge pressure is calculated by?
Which of the terms below is measure in "watts"
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?
"This physical factor within the environment that harms the musculoskeletal system." This statement best describes which of the hazard groups below?
(310102c) Resistors have several construction methods. Which of the resistors below would have 1 fixed terminal and a sliding contact?
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below can be best described as, "the ratio of the density of a substance to the density of water."?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
The area of a circle is calculated with which correct equation?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve coating the iron tip with a small amount of solder?
If, for every 12 C of charge, 50 J of energy is available, what is the voltage?
In fluid mechanics, there is always a loss in pressure due to several factors. Which of the factors below would most affect this loss in pressure?
(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 instruments in a hazardous location?
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
What type of cell is a lithium constructed battery?
"A method of expressing numbers in terms of a number between 1 and 10 multiplied by a power of base 10" is a definition of what?
(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 workers?
"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) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the most common of those methods?
What is the formula that the pneumatic relays amplification or gain is expressed by?
(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?
A standard pipe size chart will have piping up to 24". At which pipe size does the OD in inches, match the NPS in inches?
A "wheel and axle" is an example of which type of machine?
"A characteristic where flow capacity increases linearly with valve travel. Flow is directly proportional to valve travel." is the best description of which of the terms below?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "4" in the picture below?
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?
A fume extracting welding gun works well with which other source of ventilation? Choose the best answer from the choices below
What power of soldering station is used for electronic soldering?
There are several properties to a circuit. Which of the terms below best defines the opposition to a change in current?
The outermost shell of an atom is called the valence shell.
Reduce and state answer as a proper or mixed fraction: ³⁴⁰⁄₁₆.
(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 signal circuits that are considered Class 1?
There are 3 major components to a zener intrinsically safe barrier. Which of the answers below would be best describe the component that limits the voltage delivered to the field device?
(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 ______ in per unit volume temperature of a conductor, offers ______ resistance to current"
If it were necessary to operate an 50-300 kPa valve actuator, but you had a 20-80 kPa control signal, the relay used would be?
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?
Of the types of link and lever calibration methods below, which one requires only one type of adjustment?
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
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?
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?
If the total error is 1.7 and the dead band error is is 0.5, what is the hysteresis value?
1 pound force is equal to
The prefix "Kilo" can be expressed as?
The standard unit of resistance is which of the below?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Work" use as it's unit of measurement?
Solve the equation:(4)(5)+4
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?
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?
There are several advantages and limitations to installing a zener barrier as an intrinsically safe barrier. Which one of the answers below can be considered an advantage of this style of barrier?
There are several types of measuring elements used in industry. Which of the answers below best represents the letter "C"?
