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Instrumentation: FIRST PERIOD

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

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 at the open end of a process pipe?
Which type of actuators are widely used where a large amount of mechanical travel is necessary?
A car traveling west has an initial speed of zero, and accelerates at a rate of 4 m/s² for 6 seconds. What is the displacement of the car?
Chart recorders have a couple of specific applications. Which application below would best describe the charting of results from a flow rate across an orifice plate?
ESD is a major issue for the failure of electrical components. Which of the answers below would best represent the minimum discharge voltage that could damage electrical equipment?
"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?
"Is the measure of the amount of space inside of a solid figure, like a cube, ball, cylinder or pyramid." is the description of which mathematical term?
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?
Use the answers below to fill in the blanks of the following sentence. "The _____ of the plates in a capacitor is _______ to it's capacitance."
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 terms below, what is "Work" measured in?
Electromagnetism is a property of electrical charges moving through materials. Use one of the answers below to correctly fill in the blanks of the following sentence, "A magnetic fields strength in close proximity to conductor is _________ to the amount of current flowing through it."
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"
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
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?
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?
(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 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?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
"6(5+15)=(6 x 5)+(6 x 15)" is an example of which mathematical law?
What is the density of water?
A column of water at 4C, 6.5 meters in height exerts what amount of pressure?
What power of soldering station is used for electronic soldering?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would a "hose test" pass be required?
Inductive reactance is the _________________ to change in current created by coil in an AC circuit.
(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 require constant replacement?
"Is the change in velocity divided by the elapsed time for the change to be completed." is the description of which mathematical term?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would be adjusted for any slight angularity issues?
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?
If a battery has a rating of 120 Ah, theoretically it could provide 12 A for how long?
The ratio 3.4:2.5 equal to?
Capacitance is a measurable quantity. Which of the answers below represents the SI unit for capacitance?
there are numerous pieces of rigging equipment. Which of the answers below correctly identifies the item in the picture that follows?
Convert 0.875 to a fraction.
Calculate the gain when a change from 1.55 psig to 2.15 psig in nozzle backpressure and a change from 3 psig to 20 psig in the relay output occurs.
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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?
There are many terms associated with "Energy". Which term below is correctly described as, "is energy stored in a spring."?
In the fraction A/b, is A the denominator?
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 explosion-proof enclosure?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe a thread with a 16 TPI?
746 Watts is equal to which of the terms below?
The CEC generates a hazardous area result by investigating the contents of the area. Which of the designations below is based on an explosive atmospheres duration and frequency of occurrence?
Two pieces of eye protection should be used together when grinding or chipping. Choose the best answer from the selection below.
Which of the terms below is best described by the following statement, "Defines the direction of current flow in an electrical circuit."?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for corrosive material?
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?
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?
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "joules"?
A _________ has the air connection usually above the diaphragm
Of the adjustments below, which is the most common adjustment made?
There are several different ways to apply force to an actuator. Which one of the methods below would a rack and pinion actuator use for operation?
(310105d) Hp is a common term seen to rate power. Which of the answers below reflects the conversion of 278 hp to watts?
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?
There are many studies on how pressure and force affect fluids. "Container shape does not affect fluid pressure." is one of the principles of which answer below?
There are subgroups of fuel for fires need to burn. Which of those subgroups would sulfur belong to?
Ozone, carbon monoxide, hydrogen chloride and phosgene are all gases that can be created by different types of welding. Of the answers below, choose the best one that they all have in common.
Some enclosures have removable coverings to allow maintenance work. Which of the enclosures below would have a square cover?
"To cause the valve to close, an increase in air pressure to the actuator is required" is the definition of?
(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?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the minimum safety standards set for employers?
When making a span adjustment, what is the first adjustment made?
If, for every 10 C of charge, 40 J of energy is available, what is the voltage?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=nRT"?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "V₁n₂=V₂n₁"?
There are several different types of carbon steel in any piping system. Which of the types below would have a 0.3-0.6% carbon content?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a 2.5 mm minimum water gauge flow to be maintained?
Of the types of link and lever calibration methods below, which one requires a minimum of two types of adjustments?
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?
There are several different ways to apply force to an actuator. Which one of the methods below would a vane actuator use for operation?
"Is the side across from a given angle of significance." is the description of which right angle triangle mathematical term?
If a compound were to be broken down into its simpler components, of the options below, what would it be called?
To move 225 C across two points. when the voltage is 45 V, how much energy is required?
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to density." is one of the principles of which answer below?
Convert ¹⁰⁄₁₅ to a decimal.
A battery has a rating of 80Ah, this means it can supply
The following statement is the best description of which of the terms below, "The electric dynamic that sustains the charge difference in a circuit."?
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for more than 10, but less than 1000 hours a year?
Copper tube is commonly available in two types of tempers. Which of the answers below best describes a tube that is referred to as "hard or rigid"?
101.325 kPa is equal to?
There are some troubleshooting issues that can arise while soldering. Which of the issues below would be best described as a heat transfer loss from the soldering tip?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "3"?
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for less than 10 hours a year?
A conductor is passed through a magnetic field and a voltage is induced, whose law is this?
Materials with five or more electrons in their valence shell are considered what?
If a closed tank is pressurized to 15 psig and the pressure gauge at the bottom of the tank reads 36 psig, what head (in meters) of a liquid with a R.D. of 0.45 is contained in the tank
The main function of a valve positioner is which of the below?
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?
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?
A mass of 5 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
"The distance around the outside edge of a two-dimensional shape." is the definition of which mathematical term?
Synthetic slings can be selected for a task specific application. Which of the sling property below would allow a nylon sling to be used in an explosive atmosphere?
Copper tube is commonly available in two types of tempers. Which of the answers below best describes a tube that is slowly heated and cooled providing a soft flexible result?
What are the 2 major parts of a control valve?
(310101c) When ordering a GP copper tubing size, it has to be precise. Which of the measurements below would be used for ordering copper tube?
Isolate the following equation for "v": d=vt
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
If a battery has a rating of 75 Ah, theoretically it could provide 6.8 A for how long?
(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 maintenance of instruments in hazardous locations of instruments?