A randomized 100 question test from a pool of 1236 questions, good luck!
(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 circuits that are isolated?
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 "A method that attempts to physically separate or isolate the electrical parts or hot surfaces from the explosive mixture."?
(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?
Heat is based on the movement of molecules. Which of the answers below correctly fills the blank in the following sentence, "Temperature is the measurement of the average _________ of the movement of molecules."
The basic unit of matter is called?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
(310105d) The output of an applied force uses is a measurable quantity. Which of the terms below would be use "W" as it's unit of measurement?
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?
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.
There are many terms for specific electrical components. Which of the components below is best described as a passive electrical component with the primary function to limit the flow of electric current?
(310104a) There are only two major parts to a sliding stem control valve assembly. Which of the components below would best be described a a device that produces linear motion from a source of power to control the flow of .energy of a process?
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the enclosures inlet airflow rate be measured for purging times?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area with easily ignitable fibers or flyings, but the concentration of these fibers or flyings are not in quantities that would produce ignitable mixtures?
The circumference of a circle is calculated with which correct equation?
Gasses react to the increase or decrease of pressure in measurable ways. Which of the terms below describes the reaction of an enclosed gas to a pressure increase?
If a closed tank is pressurized to 15 psig and the pressure gauge at the bottom of the tank reads 36 psig, what head (in meters) of a liquid with a R.D. of 0.45 is contained in the tank
"An electric circuit in which the electric passes through each circuit element in order." is the best description for which of the terms below?
In the WHMIS system, "Flammable and combustible material" is represented by which hazard class? Choose from the following answers.
State the number 4.785 x 10 ⁻⁵ using decimal notation and round the answers to three significant digits.
Which type of valve is pictured below?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
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.
Gauge pressure is calculated by?
(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?
Convert ⅘ to a decimal.
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "6"?
When making a span adjustment, what is the first adjustment made?
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?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a binder?
In the SI system of measurements, there are several symbols used for magnetism. Which of the measurement units below would represent "relative permeability"?
(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?
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
Convert 0.500 to a fraction.
Of the terms below, what is "Work" measured in?
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.
"Is the rate of doing work, it is the amount of energy consumed per unit time", is the description of which mathematical term?
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
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."?
Determine the voltage V(ab) with R1=70k ohms, R2= 100k ohms and R3= 360K ohms, with a current of 0.754 mA
Convert 0.125 to a fraction.
A 3 kg mass is placed on a 4 cm diameter diaphragm, what is the pressure on the air under the diaphragm?
What is the density of water?
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for converting a measured PV into an output signal?
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.
(310104a) The valve body contains some of the vital components in a valve. Which of the components below would be responsible for the alignment for the path of travel of the valve plug?
A magnetic field is set up between the the two poles of a magnet. Which of the answers below would the represent the flow direction inside the magnet?
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?
A magnetic field is set up between the the two poles of a magnet. Which of the answers below would the represent the flow direction outside the magnet?
When selecting a valve for a piping system, several factors must be considered. Which of the terms below can be correctly described by the statement, "Constitutes the pressure differential generated between two defined points through various ares of loss."
(310103d) There are several different designs of regulator. Which of the loading element designs below would have to slowest response to changes in downstream pressures?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "A"?
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?
Convert ¹⁰⁄₁₅ to a decimal.
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to certification markings
Tube fittings can be put into three general categories, each with distinct components. Which of the categories below includes a bite type fitting?
34.450 in engineering notion is what?
State the number 479.3 using engineering notation and round the answers to three significant digits.
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
Factors affecting induced voltage include:
If a pressure change of 20 kPa to 80 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 2.7 cm and the effective area of the diaphragm is 0.08 m^2
How many coulombs of charge pass though a given point in 1 second, if the current is 16mA
What pressure does a column of liquid exert with a density of 56.7 lbs per cubic foot and a height of 54 inches
"If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A" is a description of which one of Newton's laws?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
"A triangle where one of its interior angles is 90 degrees." is a description of which mathematical term?
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a O-ring seal style fitting?
If a closed tank is pressurized to 17 psig and the pressure gauge at the bottom of the tank reads 34 psig, what head (in meters) of a liquid with a R.D. of 0.23 is contained in the tank
If a battery has a rating of 120 Ah, theoretically it could provide 12 A for how long?
(310101c) There are a wide variety of tubing fitting types. Which of the fittings below would best be used when terminating tube connections?
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?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Hydrogen belong to?
A lithium cell can produce about _____ times the voltage of an alkaline cell.
What is the area of a rectangles with sides measuring 15.5 cm, and 12.6 cm?
There are several different types of carbon steel in any piping system. Which of the types below would have more than a 0.6%% carbon content?
"The lag in response exhibited due to the absorption of energy in a measuring instrument." is the best description of which term?
Choose the correct order of mathmatical operations.
Which of the terms below is best described by the statement, "Current flows from the positive terminal to the negative"?
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?
In a simple circuit, if E=4 V and R=1.75 ohms, what is the current of the circuit?
Solder is a vital component of the soldering process. Which of the solders below is most commonly used for repair work done by hand?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the most common of those methods?
The result of a _______ actuator is installed with a ________ valve will be normally open, fail closed
Convert the following quantities to the units asked for: 1.75 hours to minutes.
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?
If a closed tank is pressurized to 12 psig and the pressure gauge at the bottom of the tank reads 56 psig, what head (in meters) of a liquid with a R.D. of 0.75 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?
The common methods for classifying pipe is by NPS and DN. Which of the answers below are these methods used for the classification of piping?
A worker is grinding 6m away from another worker refueling a diesel welder. Is there any workplace infraction occurring in this situation? Choose the best answer below for answering this.
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with immediate and serious toxic effects?
There are several common precision measurement tools available in industry. Which of the answers below best represents the tool pictured below?
When higher operating pressures are used, this type of actuator produces higher thrust than diaphragm actuators.
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "4"?
State the number 469.4 x 10¹⁵using engineering notation and round the answers to three significant digits.
With a direct acting actuator, as air pressure increases:
What pressure in Kpa is required to produce a force of 17650 lbs. when applied to a diaphragm actuator with a radius of 5 inches?
There are many studies on how pressure and force affect fluids. "Fluid pressure is exerted in all directions." is one of the principles of which answer below?
When 150 C passes by a point in a wire in 6 seconds, what is the current in amperes?
(310105d) Hp is a common term seen to rate power. Which of the answers below reflects the conversion of 278 hp to watts?