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Instrumentation: FIRST PERIOD

A randomized 100 question test from a pool of 1236 questions, good luck!

If a pressure gauge is reading 54 kPag and the local atmospheric pressure is 99 kPaa, the the absolute pressure gauge reading will be?
Convert 45.9 kPa into psi
Which of the electrical terms below can be best described as one that "internally converts stored chemical energy into electrical potential energy."
(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 2?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
7 coulombs of charge require how many electrons?
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?
(310105d) Displacement quantities are all a measurable amounts. Which of the answers below would "Kinetic friction" use as it's unit of measurement?
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?
(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 an electrical communication system?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 100 °C?
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as equipment or circuits that are tested under fault situations?
(310105i) Any solid has inherent properties associated with it. Which of the properties below would be referred to as the ability to accept or resist an external force trying to deform it?
A key component of removing or field servicing a control valve is the lockout device. Which of the devices below is best described as one that has no possibility for accidental removal?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for compressed gases?
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?
Convert ¹⁰⁄₁₅ to a decimal.
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, removing securing devices and any isolation points once work area is deemed safe, would be which of the steps below?
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 257 °F in °C?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Ethylene belong to?
Reduce ³⁴⁰⁄₄₀ and state as a proper or mixed fraction.
A conductor is passed through a magnetic field and a voltage is induced, whose law is this?
"5 x 7=7 x 5" is an example of which mathematical law?
Batteries come in two common varieties. Which of the terms below can relate best to a non-rechargeable cell?
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to certification markings
Determine the volume of a tank in meters cubed, with the dimensions of 2.56 m, by 4.36 m, by 1.30 m
(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?
To move 50 C across two points. when the voltage is 5 V, how much energy is required?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used with a pressurized enclosure that contains equipment which is capable of ignition?
What are the three main elements of a regulator?
The prefix "giga" can be expressed as?
State the number 236.478 x 10¹¹ using scientific notation and round the answers to three significant digits.
State ⁴⁷⁸⁄₉₈ as a mixed fraction.
Convert 0.125 to a fraction.
From the information given in the diagram below, what is the voltage across each resistor?
Which term can be defined as the pressure measured from absolute zero?
What is the purpose of the PTC switch in a lithium battery?
(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?
(310102c) Resistors have several construction methods. Which of the resistors below would have 2 fixed terminals and a sliding contact?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
Convert 4 ⅞ to an improper fraction.
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described as a measure of how much matter is in an object?
(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?
"A version of mathematical notation in which the exponent of base ten must be divisible by three" is a definition of what?
In the WHMIS system, "Corrosive materials" is represented by which hazard class? Choose from the following answers.
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen arc adjustment/verification be?
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.
The area of a circle is calculated with which correct equation?
The Si unit for measuring force is the Newton. Which of the answers below is equal to an object that has a mass of 65830 g?
Chart recorders have some specialized applications in industry. Which of those applications would best make use of the multiple temperature inputs available?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "4"?
(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 2 circuits that are controlled remotely?
The prefix "Milli" can be expressed as?
"Is the change in velocity divided by the elapsed time for the change to be completed." is the description of which mathematical term?
An I/P transducer is a positioner.
Convert 175 psi to mmW.C. Barometer is 99.6 kPa(a)
Using the Pythagorean Theorem solves for which mathematical term?
There are two different ways of identifying general purpose tube. If you see "⅜ in-SS-0.036" printed on the outside of the tube, what would the "⅜" refer to?
Capacitance is a measurable quantity. Which of the answers below represents the SI unit for capacitance?
True force balance negative feedback system consists of:
There are several parts to a drill bit. Which of the terms below best represents the part of a drill bit that is used to cut into materials?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the volume of a mass of gas is inversely proportional to its pressure."?
A column of water with a density of 43 lbs per cubic foot and a height of 65 inches, exerts what amount of pressure ?
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?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type M tube type typically have?
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?
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?
(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?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would generally not be used to protect current electronic instrumentation?
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?
"Is done when a force that is applied to an object and moves that object." is a description of which mathematical term?
The ratio 3.4:2.5 equal to?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by 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?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be the most sensitive to pressure changes?
Convert the following quantities to the units asked for: 1.75 hours to minutes.
There are numerous steps to drilling with a power drill. Which answer below correctly identifies the size of the center punch mark in a piece to be drilled?
Materials with five or more electrons in their valence shell are considered what?
1 kPa is equal to _____ psi
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 0-9 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
There are several different types of carbon steel in any piping system. Which of the types below would have less than a 0.3% carbon content?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of increasing erosion and wearing down resistance?
The height of a free standing or rolling scaffold is restricted to no more than 3 times the smallest base dimension. This guideline comes from which of the acts below?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a nickle-chromium resistance wire?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area where combustible dust, rather than gases or liquids, may be present in varying hazardous concentration?
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
8 coulomb of charge requires how many electrons?
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?
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.
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would explosion-proof equipment be primary used?
Which of these pressure to force converters has two diaphragms soldered together?
The law of electrical charges states that unlike charges attract one another and like charges repel one another.
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would a "hose test" pass be required?
In a baffle-nozzle-restrictor motion detector the:
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "L" represent?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe the distance from the crest of one thread to another crest measured along the length of the thread?