A randomized 100 question test from a pool of 1236 questions, good luck!
Express ³²⁄₄₄ as a percent.
If a pressure change of 20 kPa to 100 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 7.5 cm and the effective area of the diaphragm is 0.02 m².
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?
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
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?
In any intrinsically safe loop there are several main items that are vital to the loop. Which of the answers below contains those items?
In Unified National nomenclature what does the "12" represent in this bolt class- 1/2-12-UNC 2B
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "2"?
An absolute presser gauge is giving a reading of 7.8 PSI(a). Convert this reading to PSI(g) assuming a local barometric pressure of 11.3 PSI(a).
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the SI relative temperature scale?
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?
Which of the resistors below is best described by the following statement, "A variable resistor making use of three contacts whose resistance varies with an adjustment of a sliding contact."?
In the WHMIS system, the two types of labels that are the most commonly used are? Use the answers provided.
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁T₂=P₂T₁"?
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "joules"?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "ppwer" rating?
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"?
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?
"Is the quantity that expresses the extent of an enclosure of a two-dimensional figure or shape." is the description of which mathematical term?
The ISA has defined 3 types of installations for purge/pressurization for hazardous applications. Which of the types below would an enclosures classification be reduced from Class I, Zone 1 to non-hazardous?
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?
Convert 0.500 to a fraction.
If a fitting increases in cost from $675 to $890, what is the percentage increase of the fitting?
State the number 479.3 using engineering notation and round the answers to three significant digits.
State the number 789342.61 using decimal 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 air system?
Alternating current is bi-directional.
(310105d) Hp is a common term seen to rate power. Which of the answers below reflects the amount of work done in 15 mins by a 45 hp motor?
Of the adjustments below, which is the most common adjustment made?
Matter that is compose of only one atom is called what?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with other toxic effects?
Batteries come in two common varieties. Which of the terms below can relate best to a non-rechargeable cell?
With respect to pressure drop, which control; valve has "high" recovery characteristics?
(310102m) The relationship between resistors, capacitors and time intervals is an interdependent one. Which of the answers below would be the voltage across a steady state capacitor after 1 tau of it discharging?
A pneumatic level transmitter, with an output range of 20-80 kPa, is being used to assess the fluid level in a cylinder though an input range of 0-17 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
(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??
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.
If a closed tank is pressurized to 20 psig and the pressure gauge at the bottom of the tank reads 25 psig, what head (in meters) of a liquid with a R.D. of 0.65 is contained in the tank
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
Movement of the actuator stem by air pressure applied to a flexible membrane is a characteristic of which actuator?
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?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "tolerance" rating?
"The heat absorbed per unit mass of a given material at its boiling point that completely converts the material to a gas at the same temperature", is a description of which physics term?
In the fraction A/B, is A the numerator?
(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 a resistor with a smaller one in a simple circuit?
One coulomb is equal to how many electrons?
There are several varieties of manufactured resistors. Which of the answers below is generally regarded as the most common resistor?
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?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "μ" represent?
Of the types of link and lever calibration methods below, which one requires only one type of adjustment?
If a closed tank is pressurized to 114.345 kPa and the pressure gauge at the bottom of the tank reads 165.456 kPa, what head (in feet) of a liquid with a R.D. of 0.83 is contained in the tan
A tight seal to the face is required by all respirators. This is a critical element in which of the following type(s) of respirator? Of the options below, choose the best answer.
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most maintenance free?
"The quantifiable change in position of an object, including how far the object travels and in what direction, before achieving it's final position." is the description of which mathematical term?
What type of cell is a lithium constructed battery?
(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 a resistor with a larger one in a simple circuit?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, isolating all sources of energy to the work area would be which of the steps below?
State the number 469.4 x 10¹⁵using engineering notation and round the answers to three significant digits.
Biological Hazards can be further broken down into subsections. Of the answers below, one is not a biological hazard, choose the answer that doesn't fit.
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "that at the same temperature and pressure, equal volumes of all gases contain the same number of molecules."?
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?
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?
Electrostatic generation can be happen in many conditions. Which of the answers below would correctly fill the blank in the statement, "The generation of an electrostatic charge is ________ in conditions that are humid?"
Of the valves below, which would be best for erosive service?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
The radius of a circle is calculated with which correct equation?
"The quantity of motion of a moving body, measured as a product of its mass and velocity," is the description of which mathematical term?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "6"?
Under the Workers compensation act, are apprentices and learners entitled to compensation?
Which type of valve is pictured below?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
There are 3 major components to a zener intrinsically safe barrier. Which of the answers below would be best describe the component that limits the short circuit current?
What are all the variables that can be measured when dealing with gases?
To preform a "Span" adjustment the order of the step(s) is/are?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
Convert ¹⁰⁄₁₅ to a decimal.
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
Solve for the missing side.
The symbol for a amperes is which of the below?
What is the gain if nozzle backpressure changes from 1.35 psig up to 2.5 psig, and the relay output changes from 4 psig to 17 psig?
What is the area of a rectangles with sides measuring 15.5 cm, and 12.6 cm?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for compressed gases?
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?
What is the SI unit of force?
It is a good trade practice to transport gas cylinders secured and upright. From which act below did this practice come from?
Batteries come in two common varieties. Which of the terms below can relate best to a rechargeable cell?
There are several different notations on a length of pipe. Which of the notations below would have the thinnest pipe wall?
"If a worker is injured or has an accident on the jobsite, they must report it as soon as possible to the employer." The act that best encompasses this statement is which of the following?
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
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
(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?
Solve for the hypotenuse.
A mass of 7 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
What is the purpose of the PTC switch in a lithium battery?
An I/P transducer is a positioner.
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Which of the following measurements cannot be performed by a sliding caliper?