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Instrumentation: FIRST PERIOD

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

"A valve that has a low pressure drop at high flow rates.", is the best description of which of the terms below?
State the number 236.478 x 10¹¹ using scientific notation and round the answers to three significant digits.
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 Zone 2?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
(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?
Burns have a classification by degree. If you have a surface burn, it would be considered which of the following?
There are several types of soldering irons that are available in industry. Which type of soldering iron below would a soldering pencil best refer to?
101.325 kPa is equal to?
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?
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."?
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
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?
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?
Pick the answer that will fill the blank. "_______ of the voltage would appear across the open circuit in a ______ circuit."
How is the term "Cv" calculated?
With a direct acting actuator, as air pressure increases:
A fire is burning in a pile of weathered, oily blankets. Which of the following extinguishers should you use to fight this fire?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the creation of two equal ranges from standard range?
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 floor of the container. Of the following answers, which gas would he be testing for?
(310105i) Any solid has inherent properties associated with it. Which of the properties below would be referred to as the ability to accept or resist an external force trying to deform it?
(310103f)There are several methods for measuring process variables. Which of the transmitters below would use cavities filled with oil used as a dielectric in the creation of an output signal?
Convert the following quantities to the units asked for: 1.75 hours to minutes.
A mass of 5 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a single ferrule style fitting?
State the number 0.004675 using scientific notation and round the answers to three significant digits.
If, for every 20 C of charge, 80 J of energy is available, what is the voltage?
"An adjustment that, without affecting the base point, changes the shape of the curve" is the definition of which adjustment?
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 transmitter output signal if the fluid level is at 8.65 meters?
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
"The distance around the outside edge of a two-dimensional shape." is the definition of which mathematical term?
There are many studies on how pressure and force affect fluids. "Horizontal runs do not increase pressure." is one of the principles of which answer below?
(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?
"Change (variance) In total amounts expressed as percentages." is the description of which term?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "ƪ" represent?
In the fraction A/b, is A the denominator?
If a battery has a rating of 60 Ah, theoretically it could provide 3.3 A for how long?
What are the two main systems of negative feedback?
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 flame-proof enclosure?
8 coulomb of charge requires how many electrons?
(310102m) A capacitor's voltage increases in a very predictable way. Which of the answers below represents the total time constant intervals required to achieve a full charge in a typical capacitor?
Covert 34.5 kPa to psi.
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 6 cm diameter filled with gas?
Calculate the normal force exerted by an object that has a mass of 5.7 kg.
there are numerous pieces of rigging equipment. Which of the answers below correctly identifies the item in the picture that follows?
There are several different types of hammers used in industry. Which of the hammers below best represents the following picture?
From the information given in the diagram below, what is the current flowing on branch R3?
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?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
Movement of the actuator stem by air pressure applied to a flexible membrane is a characteristic of which actuator?
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"
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"?
Lifting a load with rigging is an involved and potentially dangerous task. When working with slings, which of the angles below is the commonly used safe lifting angle?
Convert ¹⁸⁄₅ to a decimal.
"A two ratios that are equal in an equation." is a description of which mathematical term?
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?
Unless otherwise stated by the manufacturer, there are several general practices when installing a chart recorder. Which of the answers below correctly identifies the maximum distance between DPU and recorder?
Although there are numerous type of batteries, they all share a common construction. Which of the answers below contains all the required parts of a battery?
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would have two tube ends offset and one pipe connector?
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?
(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 power circuits that are considered low energy?
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a field device that has a minimum of 1.3 volts it can develop or contain?
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.
There are several terms that are used to describe the features of a particular thread type. Which of the answers below would best describe the "³⁄₁₆" in the bolt designation ³⁄₁₆-12 UNF x 6?
What is the SI unit of force?
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?
If a closed tank is pressurized to 16 psig and the pressure gauge at the bottom of the tank reads 31 psig, what head (in meters) of a liquid with a R.D. of 0.37 is contained in the tank
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?
There are many different applications for copper tube. Which of those applications below would have the greatest internal operating pressure ratings?
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?
(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?
The equation to calculate density is?
Solve for x: (3)(5)+9=x
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"?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the addition or release of air from the actuator to achieve proper plug placement?
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?
(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?
There are several definitions used frequently in the CEC. "Limitation of current and voltage in the circuit prevents excessive heat and the formation of ignitable sparks" would best describe which of the answers below?
Material safety data sheets are required to be accompany all controlled substances from the supplier. There are _______ that make up these sheets, providing more detail than the label. Use the answers below to fill in the blank
If a compound were to be broken down into its simpler components, of the options below, what would it be called?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type DWV tube type typically have?
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be referred to as a "Van Stone" flange connection?
Convert ⁸⁄₁₉ to a decimal.
"The results of a devices inelastic quality" is a definition of which term?
With a reverse acting actuator, as the pressure increases:
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?
Which are the two major categories of pressure regulators?
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described as a measurement that compares the amount of matter an object has to compared its volume.
The prefix "Centi" can be expressed as?
Worker education is the responsibility of the:
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would move as the direct result of the rotation of the torque shaft?
(310105i) Any solid has inherent properties associated with it. Which of the terms below would best represent the final amount of stretch or elongation that the material undergoes during tensile testing?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the voltage when the capacitor gets to 5τ?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
A parallel circuit reacts in specific ways to the to an open circuit. Which of the answers below best describes the reaction of the total line current to an open circuit?