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Instrumentation: FIRST PERIOD

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

A fire is burning in a pile of weathered, oily blankets. Which of the following extinguishers should you use to fight this fire?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be equal to "J" as a of measurement?
"The production of an electromotive force in one circuit by a change in current in a separate circuit." is the best description of which of the terms below?
60% of 54 is what?
In the fraction A/B. is B the numerator?
Circular chart recorders have several specific accessories. Which of the answers below would best describe the accessory that allows the additional measurement of differential and static pressures?
If, for every 30 C of charge, 60 J of energy is available, what is the voltage?
If, for every 12 C of charge, 50 J of energy is available, what is the voltage?
"A pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid," is a description of which principle?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the the responsibilities of those associated with the work site?
There are several different notations on a length of pipe. Which of the notations below would have the thickest pipe wall?
If a battery has a rating of 120 Ah, theoretically it could provide 12 A for how long?
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 whole number and a fraction combined into one number", is a description of which type of fraction?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious material with immediate and serious toxic effects?
There are many terms that are used with precise measurements. Which of the answers below is the term used when the answer to a problem has more significant digits that the measurements that have been recorded?
With the proper formula "Work" is a measurable quantity. Which answer below represents the "displacement" part of that equation?
If a closed tank is pressurized to 10 psig and the pressure gauge at the bottom of the tank reads 45 psig, what head (in meters) of a liquid with a R.D. of 0.78 is contained in the tank
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed air system?
(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 grounding of less that 50V circuits?
(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, prior to any work, the administrative procedures to be in place?
There are two different ways of identifying general purpose tube. If you see "4 mm-SS-1.452" printed on the outside of the tube, what would the
"Is an area where no movement occurs with the actuators change in direction." describes which term?
Reduce ⁹⁄₁₄ and state as a proper or mixed fraction.
If the total error is 1.4 and the dead band error is is 0.6, what is the hysteresis value?
Determine x if 5:16=x:128.
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 largest diameter of the thread?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the current of the circuit?
Using the Pythagorean Theorem solves for which mathematical term?
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?
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?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area where gases or vapours are present sufficient quantity to produce explosive or ignitable mixtures.
State ⁸⁴⁵⁶⁄₂₄₃ as a mixed fraction.
A mass of 7 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
The prefix "Mega" can be expressed as?
With the proper formula, "Work" is a measurable quantity. Which answer below represents the "force that is applied" part of that equation?
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?
In a simple circuit, if I= 4 A and R=2 ohms, what is the voltage drop over the resistor of the circuit?
"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."
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?
A conductor is passed through a magnetic field and a voltage is induced, whose law is this?
A mass of 6 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
"An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force." is a description of which one of Newton's laws?
(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 it with a smaller one in a simple circuit?
"The results of a devices inelastic quality" is a definition of which term?
"A way of concisely showing the relationship between two quantities." is a description of which mathematical term?
There are many studies on how pressure and force affect fluids. "Fluid volume does not affect pressure." is one of the principles of which answer below?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
"If a worker is injured or has an accident on the jobsite, they must report it as soon as possible to the employer." The act that best encompasses this statement is which of the following?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Solve the equation:(4)(5)+4
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
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?
What is the term used to describe the total opposition to current flow in an AC circuit?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
Which type of actuators are widely used where a large amount of mechanical travel is necessary?
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
"Is the rate of doing work, it is the amount of energy consumed per unit time", is the description of which mathematical term?
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."
"Changes in temperature of a gas or object with no change in phase." is a description of which physics term?
If a closed tank is pressurized to 20 psig and the pressure gauge at the bottom of the tank reads 25 psig, what head (in meters) of a liquid with a R.D. of 0.65 is contained in the tank
A mass of 5 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
"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 item would be used on a pneumatic system to speed up the pneumatic signal?
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?
Materials with one to three electrons in their valence shell are considered what?
Determine the voltage V(bc) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "ppwer" rating?
Determine the voltage V(ad) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
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 R2?
(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??
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?
(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?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "6"?
The volume of a sphere is calculated with which correct equation?
(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?
The CEC generates a air grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Propane belong to?
Tube fittings can be put into three general categories, each with distinct components. Which of the categories below requires a flared tube end, nut and sleeve?
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?
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 fluid level if the transmitter signal is 35 kPa
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
"pressure developed by a column of liquid" is the definition of which term
The standard unit of conductance is which of the below?
"A fraction that is less than one, with the numerator less than the denominator", is a description of which type of fraction?
"Is the quantity that expresses the extent of an enclosure of a two-dimensional figure or shape." 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 prevent overshoot of the Zero?
(310101c) There are a wide variety of tubing fitting types. Which of the fittings below would best be used when terminating tube connections?
The main function of a valve positioner is which of the below?
The CEC has classified hazardous areas by a specific set of terms. Which of the answers below contains those terms in the correct order?
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?
A 2000 kg train is traveling east with a speed of 25 km/h. Determine the mass of a truck travelling at 15 km/h would have to have to be travelling at the same momentum.
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
Which type of valve is pictured below?
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?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a refrigeration system?
From the information given in the diagram below, what is the voltage across each resistor?
Calculate the gain when a change from 0.5 psig to 1.35 psig in nozzle backpressure and a change from 3 psig to 12 psig in the relay output occurs.
"Is done when a force that is applied to an object and moves that object." is a description of which mathematical term?
Which organization sets standards for boots and safety glasses in Canada?