A randomized 100 question test from a pool of 1236 questions, good luck!
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
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 resistance to an open circuit?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 373.15 K?
(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 employers?
Solve the equation:(4)(5)+4
"A particular material or class of materials, that is a hazardous substance in workplace air, has an upper limit on the acceptable concentrations." This statement best describes which of the following answers?
Movement of the actuator stem by air pressure applied to a flexible membrane is a characteristic of which actuator?
(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?
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?
What item would be used on a pneumatic system to speed up the pneumatic signal?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of improving the resistance to metal fatigue and facturing?
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?
(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??
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for receiving an output signal and converting that into a PV value?
From the information given in the diagram below, what is the voltage drop over R4, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the flexibility of operating modes?
Convert the following quantities to the units asked for: 1.75 hours to minutes.
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
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 3.5 cm and the effective area of the diaphragm is 0.05 m^2
Calculate ¾ x ⅚, and state answer as a proper or mixed fraction
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 this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop over R3?
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."?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, verifying a physical lock or securing method is placed on all isolating devices, would be which of the steps below?
In relation to hacksaws, "pitch" is referred to as?
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would best be used when connecting 3 tubes together?
State the number 0.05634 x 10⁻¹³ using scientific notation and round the answers to three significant digits.
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 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for dangerously reactive material?
If, for every 12 C of charge, 50 J of energy is available, what is the voltage?
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
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a pressure sensing diaphragm in the creation of an output signal?
The volume of a sphere is calculated with which correct equation?
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an air core is less preferable than an iron one.
(310102g) Energy can transition between various forms. Which of the terms below can be best described as the percentage of total energy input to a machine or equipment that is consumed in useful work and not wasted as useless heat?
There are several grades of iron and steel. Which of the answers below best represents a material that is extremely brittle because of it's high carbon content?
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?
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
"Is not designed for continuous occupancy, and has limited or restricted means for entry or exit." This statement best describes which of the following terms?
Ohm's law states that:
The power source is 24V and the resistance is 8Ω what is the current of the circuit?
In what kind of circuit would all of the applied voltage appear across an open circuit?
"An adjustment that, without affecting the base point, changes the shape of the curve" is the definition of which adjustment?
There are several different notations on a length of pipe. Which of the notations below would have the thickest pipe wall?
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?
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as the degree to which the result of a measurement that conforms to the required standard.
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
A parallel circuit reacts in specific ways to the addition of a resistive load. Which of the answers below best describes the reaction to an increase in resistive load?
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
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?
1 pound mass is equal to?
If a tool increases from $43 to $76, what is the percentage increase?
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.
State the number 0.00007342 using engineering notation and round the answers to three significant digits.
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "1" in the picture below?
To move 175 C across two points. when the voltage is 30 V, how much energy is required?
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?
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below can be best described as the the process of expending the accumulated energy in a capacitor?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "ƪ" represent?
There are a variety of circuit symbols used in electrical designs. Which of the terms is most commonly associated with the symbol below?
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?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "N" represent?
Which of the terms below is best described by the statement, "Current flows from the positive terminal to the negative"?
Capacitance is a measurable quantity. Which of the answers below represents the SI unit for capacitance?
Class I, Zone 1 locations can use i, ia and ib intrinsically safe equipment. Which of the answers below correctly identifies the number of faults that the "ib" equipment can withstand?
(310104b)There are many different valves to be used for different processes. Which of the valves below would best be used in a high pressure process?
In the SI system, the unit for time is?
Isolate for "v" in the following equation: d=vt
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
Reduce ⁹⁄₁₄ and state as a proper or mixed fraction.
One coulomb is equal to how many electrons?
In the WHMIS system, "Oxidizing material" is represented by which hazard class? Choose from the following answers.
(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?
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?
There are many different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
convert 4 ⁴⁄₁₁ to an improper fraction.
(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?
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
Which of the following measurements cannot be performed by a sliding caliper?
If there was a need to control the process pressure upstream of the regulator, which one of the devices below would be used?
"Is a triangle with two congruent sides and congruent base angles." is a description of which mathematical term?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "6" in the picture below?
A column of water with a density of 43 lbs per cubic foot and a height of 65 inches, exerts what amount of pressure ?
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?
If a closed tank is pressurized to 30 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 0.45 is contained in the tank?
What are the three main elements of a regulator?
The prefix "Centi" can be expressed as?
Factors affecting induced voltage include:
Stress affects metals in several different ways. Which of the answers below would best be described as the permanent deformation at a slow rate?
A 100V power supply is outputting 2A, what size of resistor is in the circuit?
A battery has a rating of 80Ah, this means it can supply
In fluid mechanics, there is always a loss in pressure due to several factors. Which of the factors below would most affect this loss in pressure?
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 0-14 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
There are several different ways to apply force to an actuator. Which one of the methods below would use a piston for operation?
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?
What volume does a substance that has a density of 1369 kg/m³ and has a mass of 4.50 kg?
5 coulomb of charge require how many electrons?
To keep your back healthy, there are several steps in lifting objects. Of the following, choose the one that would not apply.