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Instrumentation: FIRST PERIOD

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

If a tool increases from $43 to $76, what is the percentage increase?
A multi-wheel cutter is used when
There are several equations related to magnetism. Which of the terms below is represented by the equation "Ꙡᵣ=μₘ/μₒ"?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
A moment balance negative feedback system is a force balance system?
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?
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?
Convert 45.9 kPa into psi
In a simple circuit, if I= 5 A and R=4 ohms, what is the voltage drop over the resistor of the circuit?
There are several definitions used frequently in the CEC."Containing any explosion originating within its housing and prevent sparks from within its housing from igniting vapors, gases, dust or fibers in the air surrounding it." would best describe which of the terms below?
"The longest side of a right triangle, opposite the right angle." is a definition of which right angle triangle mathematical term?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be moderately sensitive to pressure changes?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of removing oxides and sulfides as well as refining the grain of the steel?
A pressure gauge at the bottom of a tank indicates a pressure of 7.9 psi. The relative density of the liquid is 0.87. What is the depth of the liquid in feet?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the pressure of a given mass of gas varies directly with the absolute temperature of the gas, when the volume is kept constant."?
(310105d) When dealing with displacement, there are two qualifiers used. Which of the answers below would be a quantity that is fully described by a numerical value alone?
A welder has set up a temporary fab area in a c-can. He has put 2 portable fans, one in the front and one in the back, in the c-can for ventilation. Based on the information provided, which type of ventilation is he using? Use the terms provided to choose the best answer.
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 fluid level if the transmitter signal is 56 kPa
Convert ¹⁰⁄₁₅ to a decimal.
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would capillary or impulse line to the instrument be used?
(310102g) Energy is lost due to undesirable resistance in any circuit. Which of the terms below refers to the power that is lost in a conductor during the transmission phase?
What is the name of the part of a drill bit that gets fitted into the drill spindle?
A _________ has the air connection usually under of the diaphragm.
A 15 kg wagon is moving west with a speed of 3 m/s. Determine it's momentum.
Convert 175 psi to mmW.C. Barometer is 99.6 kPa(a)
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
Of the types of link and lever calibration methods below, which one requires a minimum of 4 adjustments?
Electrical conduit is used to protect the cables running to the instruments. Which of the types of conduit below would be used in a corrosive atmosphere?
"The results of a devices inelastic quality" is a definition of which term?
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below would best be described as,"the measure of the intensity of the force imposed on this object by the local gravitational field"?
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?
Two pieces of eye protection should be used together when grinding or chipping. Choose the best answer from the selection below.
Calculate the force in pounds which will be developed when a liquid pressure of 76 lbs/in² is applied to an area of 54 in².
(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?
If a battery has a rating of 120 Ah, theoretically it could provide 12 A for how long?
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?
(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?
For every gas law there is a corresponding equation. Which of the gas laws below developed with the addition of Avogadro's Gas Law?
What is the name of the tool used to cut internal threads after drilling a hole?
Which of the electrical terms below can be best described as one that "internally converts stored chemical energy into electrical potential energy."
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?
(310102c) Resistors have several construction methods. Which of the resistors below would have 1 fixed terminal and a sliding contact?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "L" represent?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below is best defined as "The only method that avoids the propagation of combustion to the surrounding atmosphere by allowing the explosion to occur, but confining it to a well-defined area."?
(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 larger OD tube to a smaller OD tube?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen pressure adjustment/verification be?
To move 250 C across two points. when the voltage is 20 V, how much energy is required?
The equation to compute mechanical advantage is which one of the below?
Convert 0.500 to a fraction.
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 145 °C to °F?
"A fraction in which the numerator is greater than the denominator", is a description of which type of fraction?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
What does the term "Cv" represent in calculating pressure drop?
A _________ has the air connection usually above the diaphragm
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 two very common types of metric vernier calipers. Which of the answers below best represents the minimum accuracy of a metric Vernier caliper?
"Is the change in velocity divided by the elapsed time for the change to be completed." is the description of which mathematical term?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
What percentage of 35 is 21?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
"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?
Reduce ¹⁵⁄₄₅ and state as a proper or mixed fraction.
There are many different applications for copper tube. Which of those applications below would have the greatest internal operating pressure ratings?
(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?
The inert purge gases for GMAW and GTAW welding processes are non-toxic, but are still dangerous. In what situation below would these gases be a danger?
From the information given in the diagram below, what is the voltage drop over R4, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
The CEC generates a hazardous area result by investigating the contents of the area. Which of the designations below would be used based on the explosive characteristics of the material?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a refrigeration system?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the SI absolute temperature scale?
(310102m) The relationship between resistors, capacitors and time intervals is an interdependent one. Which of the answers below would be the reaction of a capacitor if you replaced a resistor with a smaller one in a simple circuit?
(310103d) There are several different designs of regulator. Which of the elements below are you affecting when you adjust spring compression?
What are the three areas of WHMIS?
State 3 ⅞ as a mixed fraction.
Which of the terms below is measure in "watts"
If a closed tank is pressurized to 145.345 kPa and the pressure gauge at the bottom of the tank reads 156.456 kPa, what head (in feet) of a liquid with a R.D. of 0.67 is contained in the tan
The trigonometric ratio of tangent is calculated with which mathematical equation?
Certain categories of tubing has specific applications in industry. Which of the categories below would be used in applications where no internal pressures need to be tolerated?
There are subgroups of fuel for fires need to burn. Which of those subgroups would NGLs belong?
(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?
OH&S recognizes that there are a number of hazards on any jobsite. Which of the answers below best represents the number of broad categories that it has grouped those hazards into?
Reduce and state answer as a proper or mixed fraction: ¹²⁄₄₈.
Pick the answer that will fill the blank. "_______ of the voltage would appear across the open circuit in a ______ circuit."
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most able to discharge loads at high rates for an extended period of time?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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?
Convert 14 "Hg to kPa(a). Barometer is 18.6 psi
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "4" in the picture below?
How many electrons does 134.5 x 10¹⁹ represent?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
Hysteresis can only be calculated.
If the total error is 1.3 and the dead band error is 0.7, what is the hysteresis value?
The symbol for a amperes is which of the 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 maintenance of instruments in hazardous locations of instruments?
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?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type L tube type typically have?
(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?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
Having to convert between SI and USCS measurements is commonplace in industry today. Which of the answers below is the correct conversion for 45 lbf?
What are all the variables that can be measured when dealing with gases?
(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 through the side wall of an enclosure?