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Instrumentation: FIRST PERIOD

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

The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
To move 50 C across two points. when the voltage is 5 V, how much energy is required?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for dangerously reactive material?
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?
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a refrigeration system?
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?
"The distance traveled divided by the time elapsed to reach final position." is the description of which mathematical term?
65% of 765 is equal to?
"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?
The types of tube available in industry are somewhat application specific. Which of the tube types would be best suited for a corrosive process?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type ACR tube type typically have?
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?
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?
Determine the voltage V(bc) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
For every gas law there is a corresponding equation. Which of the gas laws below developed with the addition of Avogadro's Gas Law?
Of the types of link and lever calibration methods below, which one requires a minimum of two types of adjustments?
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?
To preform a "Span" adjustment the order of the step(s) is/are?
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?
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?
(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?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would intrinsically safe equipment be primary used?
(310102m) A capacitor's voltage decreases in a very predictable way. Which of the answers below represents the total time constant intervals required to achieve a full discharge in a typical capacitor?
There are subgroups of fuel for fires need to burn. Which of those subgroups would LPGs belong?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
In a simple circuit, if I= 6 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
Solve for the missing side.
14.696 psia is equal to?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 100 °C?
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?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "when the magnetic flux alternates from the internal molecular structure reversals, the result is the heating of the core and wasted energy."
(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 leak-proof at any temperature or pressure
From the information given in the diagram below, what is the total resistance if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an iron core is more preferable than an air one.
A control valve is to have a stem travel of 5.6 cm. The diaphragm in use has an area of 0.09m². What strength of spring must be used if the desired pressure change from from 40 kPa to 110 kPa will fully stroke the valve?
"_________ is an injury caused by freezing of the skin and underlying tissues. First your skin becomes very cold and red, then numb, hard and pale." Use the answers provided to fill in the blank.
"A whole number and a fraction combined into one number", is a description of which type of fraction?
To perform an "Angularity" adjustment, the order of step(s) is/are?
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 letter "A" in the picture below?
An extraction hood attached to a system of flexible ductwork would be an example of which of the answers below? Use the options below to choose the best answer.
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of refining the grain of the steel to allow for greater resistance to corrosion and temperature extremes?
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 final velocity of the car?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would assessing the pen arms and chart plate be?
True force balance negative feedback system consists of:
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?
(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 conductor type and use?
A _________ has the air connection usually above the diaphragm
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 roof of the container. Of the following answers, which gas would he be testing for?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of blue represent?
Determine the voltage V(bd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would a thread-o-let welded to the process line be considered?
If a fitting increases in cost from $675 to $890, what is the percentage increase of the fitting?
(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?
An absolute presser gauge is giving a reading of 7.8 PSI(a). Convert this reading to PSI(g) assuming a local barometric pressure of 11.3 PSI(a).
"The ______ is divided between two series resistors in direct proportion to their resistance." The term that best fits to complete the sentence is which of the terms below?
What does the term "Cv" represent in calculating pressure drop?
A 100V power supply is outputting 2A, what size of resistor is in the circuit?
Due to a lengthy transmission distance a control valve is responding slowly. The device that would improve the response speed of the valve would be?
Stress affects metals in several different ways. Which of the answers below would best be described as the permanent deformation at a slow rate?
(310105i) Physics has may "laws" that can be applied in industry. Which of the "laws" below would relate best to the strain of a material is proportional to the stress applied
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the methods below would be best to run insulated impulse lines to location?
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
(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?
What power of soldering station is used for electronic soldering?
In the fraction A/B, is B the denominator?
Matter that is compose of only one atom is called what?
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?
There are several different notations on a length of pipe. Which of the notations below would have the largest pipe diameter?
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "a localized electric current induced in a conductor by a varying magnetic field."?
"Is not designed for continuous occupancy, and has limited or restricted means for entry or exit." This statement best describes which of the following terms?
State the following number, 15.198*10¹³ using engineering notation and round the answers to 3 significant digits.
If heat is removed from a metal, does it contract?
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?
(310101c) Although soldered fittings for tube can be used on pressure and DWV applications, there are some differences between the fittings. Which of the answers below describes one of the major differences that the DWV fittings have when compared to pressure fittings??
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area with easily ignitable fibers or flyings, but the concentration of these fibers or flyings are not in quantities that would produce ignitable mixtures?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a nickle-chromium resistance wire?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with immediate and serious toxic effects?
Covert 34.5 kPa to psi.
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is Amperes of the circuit?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁T₂=P₂T₁"?
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?
A fume extracting welding gun works well with which other source of ventilation? Choose the best answer from the choices below
(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?
"The relationship between valve position and flow in the in an operational process system.", is the best description of which term below?
In what kind of circuit would all of the applied voltage appear across an open circuit?
Circular chart recorders have several specific accessories. Which of the answers below would best describe the accessory that moves the paper chart at a steady rate?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would positively pressurized equipment be primary used?
If a tool increases from $43 to $76, what is the percentage increase?
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?
"The range through which an input can be varied in reverse without initiating an observable response" is the best description of which term?
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a two ferrule style fitting?
(310104b) Valve disassembling is a fundamental part of the Instrumentation trade. Which of the hazards below would be of primary importance to eliminate when disassembling a sliding stem actuator?
"Energy" is a calculated quantity. Which of the units below would be used as the measurement of "Energy"?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 6 cm diameter filled with gas?
The properties of a gas are unique to its molecular make-up. Which of the terms below would best be defined as "is the pressure required to liquefy a gas at its critical temperature."?
(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 suppliers?
There are several different ways to apply force to an actuator. Which one of the methods below would a pneumatic source of air not be required for operation?
A lithium cell can produce about _____ times the voltage of an alkaline cell.