A randomized 100 question test from a pool of 1236 questions, good luck!
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would a "hose test" pass be required?
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.
There are several different types of pressure tube available. Which of the type of tube below would have the best thermal and longevity properties?
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "2"?
Convert 45.9 kPa into psi
"The heat absorbed by a unit mass of a given solid at its melting point that completely converts the solid to a liquid at the same temperature", is the description of which physics term?
There are subgroups of fuel for fires need to burn. Which of those subgroups would NGLs belong?
If a battery has a rating of 90 Ah, theoretically it could provide 4.5 A for how long?
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate area?
"The range through which an input can be varied in reverse without initiating an observable response" is the best description of which term?
If a closed tank is pressurized to 121.345 kPa and the pressure gauge at the bottom of the tank reads 175.456 kPa, what head (in feet) of a liquid with a R.D. of 0.56 is contained in the tan
Of the terms below, what is "Power" measured in?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed air system?
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?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve affixing the work to be done to ensure it doesn't move while working on it?
(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 it with a larger one in a simple circuit?
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 industry committee network is made up of three bodies. Which of the bodies below acts as a link between the AIT Board and the LACs?
What is the formula that the pneumatic relays amplification or gain is expressed by?
Copper tube is commonly available in two types of tempers. Which of the answers below best describes a tube that is slowly heated and cooled providing a soft flexible result?
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?
If a closed tank is pressurized to 105.345 kPa and the pressure gauge at the bottom of the tank reads 198.456 kPa, what head (in feet) of a liquid with a R.D. of 0.11 is contained in the tan
Use the answers below to fill in the blanks of the following sentence. "The _____ of the plates in a capacitor is _______ to it's capacitance."
There are two very common types of metric vernier calipers. If the caliper that you are using has 0.5mm graduations on the beam, which of the answers below represents the graduations required on the Vernier scale?
(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 cathodic protection?
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?
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 volume of a rectangle is calculated with which correct equation?
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?
State the number 4.785 x 10 ⁻⁵ using decimal notation and round the answers to three significant digits.
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
If a compound were to be broken down into its simpler components, of the options below, what would it be called?
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?
There are many electrical terms that have symbols to describe them in equations. Which of the terms below is best referred to as "Ꜫᵣ" in an equation?
Magnetism has several terms that must be understood. Which of the terms below would best be defined as the number of magnetic lines of flux that pass through a certain point on a surface?
From the following answers, choose the best one that represents the radiant energy hazard produced by Non-destructive testing.
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described as a measure of how much matter is in an object?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use capacitor plates in the creation of an output signal?
The properties of a gas are unique to its molecular make-up. Which of the terms below would best be defined as "the point at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied."?
"A characteristic where flow capacity increases linearly with valve travel. Flow is directly proportional to valve travel." is the best description of which of the terms below?
There are several different notations on a length of pipe. Which of the notations below would have the thickest pipe wall?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 373.15 K?
Which of these pressure to force converters has two diaphragms soldered together?
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?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the increased speed of supplying the actuator with air?
Convert 0.875 to a fraction.
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?
The two main functions of a negative feedback system are:
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 1000 hours a year?
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?
If side "A" is equal to 45mm and side "B" is equal to 76mm, solve for side "C".
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 average velocity of the car?
A true force balance negative feedback system is a force balance 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, prior to any work, the administrative procedures to be in place?
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?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
Convert 175 psi to mmW.C. Barometer is 99.6 kPa(a)
"The quantity of motion of a moving body, measured as a product of its mass and velocity," is the description of which mathematical term?
(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 signal circuits that are considered Class 1?
When selecting a hammer to use, what would "weight of head" help determine?
State the number 0.05634 x 10⁻¹³ using scientific notation and round the answers to three significant digits.
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Calculate the gain when a change from 0.85 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 18 psig in the relay output occurs.
(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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁T₂=P₂V₂T₁"?
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?
"An angle that measures less than ninety degrees but more than zero degrees" is a description of which mathematical term?
The ability of a material to concentrate magnetic lines of force within a material is called?
What are the two types of magnet?
What type of fire extinguisher can have a large tapered nozzle?
1 pound mass is equal to?
"Having only magnitude, not direction, such as speed", is a description of which mathematical term?
Which pressure to force converter is typically used in dial indicating pressure gauges?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
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.
There are many terms associated with "Energy". Which term below is correctly described as, "the energy of an object in motion"?
Calculate 4/7 + 2/5, and state answer as a proper or mixed fraction
In a simple circuit, if E=6 V and R=5 ohms, what is the current of the circuit?
There is a safe ratio for the use of extension ladders. If there is a ladder extending 18 ft vertically, how far from the wall should the base of the ladder be?
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
"A pneumatic relay that is used to reduce the time lag in pneumatic circuits by reproducing pneumatic signals with high-volume and or high-pressure output." is the best description of which term below?
"A valve that has a low pressure drop at high flow rates.", is the best description of which of the terms below?
The intensity of sound is measured in dBA. In the workplace the suggested dBA level for wearing hearing protection over an 8 hour day would be which of the below?
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 an explosion-proof enclosure?
When 150 C passes by a point in a wire in 6 seconds, what is the current in amperes?
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?
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?
Covert 6 ¹¹⁄₁₃ to an improper fraction.
"Having only magnitude, not direction, such as distance", is a description of which mathematical term?
There are several terms that are used specifically with flammable gases and liquids. Which of the terms below is best described as the temperature at which a particular organic compound gives off sufficient vapor to ignite in air?
"The displacement divided by the total time to complete the change." is the description of which mathematical term?
A capacitor discharges it's voltage at a specific rate. How many tau are required for a capacitor to expend 99% of it's original voltage?
"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."
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?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the volume of a mass of gas is inversely proportional to its pressure."?
Determine the voltage V(bd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
Oxygen is a vital component of the combustion process. Which of the answers below best describes the effects of combustion if an amount of gas and oxygen are equal in volume?
A moment balance negative feedback system is a motion balance system?