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Instrumentation: FIRST PERIOD

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

The symbol for a voltage drop is which of the below?
(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 basic unit of matter is called?
If a pressure gauge is reading 54 kPag and the local atmospheric pressure is 99 kPaa, the the absolute pressure gauge reading will be?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "3" in the picture below?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of green represent?
There are a number of factors determining the resistance to current of a material. Which one of the terms below would be best described as "The amount of opportunities for the atoms of the conductor to affect current flow per linear unit"
What is the name of the part of a drill bit that gets fitted into the drill spindle?
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?
There are numerous types and styles of valves in industry. Which of the additions to a scotch yoke valve allows for proportional positioning?
"An electric circuit in which the electric passes through each circuit element in order." is the best description for which of the terms below?
A mass of 5 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
"A hollow cylindrical trim element that is sometimes used as a guide to align the movement of a valve plug with a seat ring." is the best description of which of the terms below?
What is the name of the tool used to cut internal threads after drilling a hole?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
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?
What does the term "Cv" represent in calculating pressure drop?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁n₂T₂=P₂V₂n₁T₁"?
Which pressure to force converter is typically used in dial indicating pressure gauges?
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 rigging in general?
If tool crib attendant has 8 boxes of fittings, and one person takes 1 3/4 boxes, and another person takes 3 4/5 boxes, and another person brings back 2 1/4 boxes, how many boxes remain?
The volume of a cylinder is calculated with which correct equation?
(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?
In a simple circuit, if I= 2 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
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?
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?
8 coulomb of charge requires how many electrons?
(310104d) There are several features available on valve positioners in industry today. Which of the features below can be best described as one that uses negative feedback in it's operation?
Inductive reactance is the _________________ to change in current created by coil in an AC circuit.
Of the answers below, which one is a disadvantage of a Pinch valve?
"This workplace hazard consists of organisms or organic matters produced by these organisms that are harmful to human health." This statement best describes which of the hazards below?
"Two angles that add to 180 degrees," is a description of which mathematical term?
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?
Circular chart recorders have several specific accessories. Which of the accessories below would use an ambient compensation capillary?
Give the absolute pressure in a vessel given a vacuum gauge reading of 5.3 inches of Hg and a local barometric reading of 43.5 inches of Hg.
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.
To perform an "Angularity" adjustment, the order of step(s) is/are?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate gravitational potential energy?
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Power" use as it's unit of measurement?
What are the two types of magnet?
What percentage of 35 is 21?
State the number 7.428 using scientific notation and round the answers to three significant digits.
(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?
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
"A whole number and a fraction combined into one number", is a description of which type of fraction?
In industry, electrostatic hazards are very important to understand. Which of the terms below can correctly be described as a charge created when two objects that are not good electrical conductors are rubbed together, and electrons from one of the objects rub off onto the other?
How many coulombs of charge pass though a given point in 1 second, if the current is 16mA
(310105d) For displacement to occur, several forces must act upon a mass. Which of the forces below would oppose the direction an applied force?
What are the 2 major parts of a control valve?
What is the term used to describe the total opposition to current flow in an AC circuit?
Calculate the relative density for a liquid whose density is =743.2 kg/m³.
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a barrier that blocks any excess voltage from gaining access to a hazardous area?
If a battery has a rating of 120 Ah, theoretically it could provide 12 A for how long?
What is the purpose of the PTC switch in a lithium battery?
CSA approved head, eye, and foot protection is required for all workers. This is best legislated by which of the following acts?
Solve for the missing side.
When a pressure of 15 psi is applied to a diaphragm actuator with a diameter of 18 cm, what is the force in Newtons (N) that is created?
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 as having a blind and a spacer together in one assembly?
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?
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?
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?
Burns have a classification by degree. If you have a surface burn, it would be considered which of the following?
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?
There are several varieties of manufactured resistors. Which of the answers below is generally regarded as the most common resistor?
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?
Calculate the density of a substance that has a mass of 9.8 kg and is contained in a space that has a volume of 0.00756 m³
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a refrigeration system?
When making a span adjustment, what is the first adjustment made?
The Alberta AIT Board has many responsibilities. Which of the answers below represents the Boards main responsibility?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would prevent overshoot of the URV?
From the information given in the diagram below, what is the current flowing on branch R2?
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?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, ensuring each source of energy to the work area has it's own isolation, would be which of the steps below?
The time constant for a charging capacitor is a measurable quantity. Which of the answers below represents the correct formula to use for this calculation?
Matter that is compose of only one atom is called what?
In the SI system, the unit used for mass is?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
It is a good trade practice to transport gas cylinders secured and upright. From which act below did this practice come from?
(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?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "5" in the picture below?
If it were necessary to operate an 50-300 kPa valve actuator, but you had a 20-80 kPa control signal, the relay used would be?
"A quantity having direction as well as magnitude," is a description of which mathematical term?
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a low purge gas pressure visual indicator only?
The law of electrical charges states that unlike charges attract one another and like charges repel one another.
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?
(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?
Purging is an effective means of reducing the potential hazards of an enclosure. Which of the answers below best describes the type of pressure produced in the enclosure by purging?
"This physical factor within the environment that harms the musculoskeletal system." This statement best describes which of the hazard groups below?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of yellow represent?
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?
The trigonometric ratio of tangent is calculated with which mathematical equation?
Of the clothes to wear while cutting, welding or grinding, choose from the answers below the best material to have.
(310105i) The reaction a solid has to an external force that is applied to it can be measured. Which of the units below corresponds to "Strain" measurement?
Class I, Zone 1 locations can use i, ia and ib intrinsically safe equipment. Which of the answers below correctly identifies the number of faults that the "ia" equipment can withstand?
If a closed tank is pressurized to 125.345 kPa and the pressure gauge at the bottom of the tank reads 186.456 kPa, what head (in feet) of a liquid with a R.D. of 0.05 is contained in the tan
"Two external forces acting on an object or surface that are not in opposition of each other;" is a description of what type of stress?
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most common?
Each one of the installations of purge/pressurization has its own requirements for internal equipment. Which of the installations below would be able to use equipment rated as general purpose?
"Change (variance) In total amounts expressed as percentages." is the description of which term?