A randomized 100 question test from a pool of 1236 questions, good luck!
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used with a pressurized enclosure that contains equipment which is capable of ignition?
In the SI system, the unit for time is?
(310105i) In a common stress diagram, there are several points that are noted. Which of the points below would best be described as a change in shape of a material at low stress that is recoverable after the stress is removed?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop over R3?
(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?
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as electrical/electronic circuitry that is incapable, under normal operating conditions, of causing ignition of a specified flammable gas-air, or vapor-air,mixture?
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."?
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?
The standard unit of resistance is which of the below?
In a simple circuit, if I= 3 A and R=5 ohms, what is the voltage drop over the resistor of the circuit?
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
There are several different committees in the Alberta apprenticeship system. Which of the committees below would be directly responsible for resolving any disputes between employer and apprentice?
"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 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 0-20 meters. What is the transmitter output signal if the fluid level is at 6.65 meters?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
One coulomb is equal to how many electrons?
Ohm's law states that:
(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?
In what kind of circuit would all of the applied voltage appear across an open circuit?
Gauge pressure is?
In a baffle-nozzle-restrictor motion detector the:
With a reverse acting actuator, as the pressure increases:
A mass of 6 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
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."?
(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??
In a simple circuit, if I= 2 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
"_________ is an injury caused by freezing of the skin and underlying tissues. First your skin becomes very cold and red, then numb, hard and pale." Use the answers provided to fill in the blank.
If, for every 15 C of charge, 45 J of energy is available, what is the voltage?
Moment balance Negative feedback system consists of:
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 "4 mm" refer to?
If there was a need to provide a regulated output pressure with no distrubances from varying inlet and downstream pressures, which of the devices below would be used?
Determine the voltage V(bc) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
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?
For every gas law there is a corresponding equation. Which of the gas laws below is missing from the Combined Gas Law?
The trigonometric ratio of tangent is calculated with which mathematical equation?
What is the name of the tool used to cut internal threads after drilling a hole?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "3"?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
If field servicing, or removing, a control valve from a piping system it is important to recognize the piping isolations. Which of the isolations below correctly identifies the following picture?
1 pound force is equal to
Determine the voltage V(ad) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
Which of these pressure to force converters has two diaphragms soldered together?
Express 60% as a reduced fraction.
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the answers below would be best describe a major difference between cable tray and metal conduit?
There are many terms associated with "Energy". Which term below is correctly described as, "done on an object when an applied energy moves it through a distance"?
(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?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Of the clothes to wear while cutting, welding or grinding, choose from the answers below the best material to have.
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 maximum of 1.2 volts it can develop or contain?
The MSDS for each controlled product must be:
There are several different ways to apply force to an actuator. Which one of the methods below would have the highest pressure transmission rate during operation?
Which term can be defined as the pressure at any point in an atmosphere due solely to the weight of atmospheric gases above the point concerned
State the number 13487000 using scientific notation and round the answers to three significant digits.
What is the absolute pressure of a vessel given a barometric pressure of 78 kPa and a gauge reading of 90 kPa
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 a physical barrier between two flanges of sufficient diameter to fill the entire diameter of the pipe to prevent the passing of material beyond that point?
"A way of concisely showing the relationship between two quantities." is a description of which mathematical term?
A _________ has the air connection usually under of the diaphragm.
(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 instruments in a hazardous location?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe a thread with a 16 TPI?
Convert 175 psi to mmW.C. Barometer is 99.6 kPa(a)
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a 2.5 mm minimum water gauge flow to be maintained?
(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?
The Alberta AIT Board has many responsibilities. Which of the answers below represents the Boards main responsibility?
There are several types of soldering irons that are available in industry. Which type of soldering iron below would be used for speedy repairs where electrical power is restricted or unavailable?
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
Convert 16.5 psi into kPa
A key component of removing or field servicing a control valve is the lockout device. Which of the devices below is best described as one that has no possibility for accidental removal?
Which of the terms below is the best definition by the statement, "An electric current in which the flow reverses consistently."?
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?
The trigonometric ratio of sine is calculated with which mathematical equation?
There are several different ways to apply force to an actuator. Which one of the methods below would use a solenoid for operation?
To move 175 C across two points. when the voltage is 30 V, how much energy is required?
There are several different ways to apply force to an actuator. Which one of the methods below would a pneumatic source of air not be required for operation?
From the information given in the diagram below, what is the current flowing on branch R3?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the thorough, precise safety details for suppliers?
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below can be best described as, "the ratio of the density of a substance to the density of water."?
Which of the terms below is measured in "Joules"
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
There are subgroups of fuel for fires need to burn. Which of those subgroups would NGLs belong?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
Convert ⅘ to a decimal.
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to depth." is one of the principles of which answer below?
(310103f) Strain type gauges are commonly found in industry. Which of the arrangements below would be used to compensate for temperature effects?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 373.15 K?
"Can handle pressures more accurately and can handle higher pressures" are two advantages of using which regulator?
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 trigonometric ratio of cosine is calculated with which mathematical equation?
What power of soldering station is used for electronic soldering?
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
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?
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?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
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 prefix "Centi" can be expressed as?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be the most sensitive to pressure changes?
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
(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?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve coating the iron tip with a small amount of solder?
Convert 18.5 psi into inches W.C.
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area where combustible dust, rather than gases or liquids, may be present in varying hazardous concentration?