A randomized 100 question test from a pool of 1236 questions, good luck!
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?
Express 60% as a reduced fraction.
(310104b) Some valves require specialized components. Which of the components below would best be used to eliminate "end play".
Alloy steels are very common in industry. Which of the types of alloy steel would "Austenitic" piping be?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=ZnRT"?
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a low purge gas pressure audible alarm, fuse and an interlock?
(310102m) A capacitor's voltage decreases in a very predictable way. Which of the answers below represents the total time constant intervals required to achieve a full discharge in a typical capacitor?
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 decrease in resistive load?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, testing of the isolation to all sources of energy to the work area, would be which of the steps below?
With a reverse acting actuator, as the pressure increases:
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for compressed gases?
There are numerous types and styles of valves in industry. Which of the actuators below best represents the following picture?
There are a number of factors determining the resistance to current of a material. Which one of the terms below would be best described as "A greater amount of free electrons reside in a conductor of greater diameter per linear unit."
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
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would prevent overshoot of the URV?
The volume of a sphere is calculated with which correct equation?
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 145 °C to °F?
A mass of 7 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
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?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed air system?
To keep your back healthy, there are several steps in lifting objects. Of the following, choose the one that would not apply.
From the information given in the diagram below, what is the total parallel resistance of the circuit?
There are several definitions used frequently in the CEC."Containing any explosion originating within its housing and prevent sparks from within its housing from igniting vapors, gases, dust or fibers in the air surrounding it." would best describe which of the terms below?
"The law that the algebraic sum of the products of the current and resistance in the conductors forming a closed loop in a network is equal to the algebraic sum of the electromotive forces in the loop." This statement is the best description of which electrical law below?
There are many terms associated with "Energy". Which term below is correctly described as, "the energy of an object in motion"?
The law of electrical charges states that unlike charges attract one another and like charges repel one another.
State the number 469.4 x 10¹⁵using engineering notation and round the answers to three significant digits.
Before working on a task, you notice that a trench with vertical rebar ends is directly under the work location. Harnesses and anchor points are provided at the task location by the employer, which you are instructed to use. The piece of legislation that best covers the action of the employer is which of the below?
"Either of two angles that added together produce an angle of 90°" is a description of which mathematical term?
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?
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an iron core is more preferable than an air one.
(310102c) Resistors have several construction methods. Which of the resistors below would have 2 fixed terminals and a sliding contact?
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 3-15 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate gravitational potential energy?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a binder?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the Imperial relative temperature scale?
"The quantity of motion of a moving body, measured as a product of its mass and velocity," is the description of which mathematical term?
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?
If angle "Y" is equal to 28 degrees, solve for angle "X"
The 3 key elements of the WHIMIS system are, worker education, material safety data sheets and ________. Choose from the answers below to fill in the blank.
To move 75 C across two points. when the voltage is 10 V, how much energy is required?
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?
(310104b) There are several connection methods available for valve installation. Which of the connection methods below would be best suited to a valve that would require constant replacement?
"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."
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the flexibility of operating modes?
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?
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
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
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?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "ƪ" represent?
What pressure is exerted at the base of a tank 6.5 meters high when filled with a liquid with a density of 1200kg/m³?
In the WHMIS system, "Corrosive materials" is represented by which hazard class? Choose from the following answers.
What is the pressure generated by a mass of 5 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
(310104b) Valves are a piece of equipment that needs to be replaced over time. Before removing,or servicing, an high pressure in-line valve, which of the procedures is the worker also responsible for?
"An angle that measures less than ninety degrees but more than zero degrees" is a description of which mathematical term?
From the information given in the diagram below, what is the voltage drop over R2, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
Which type of valve is pictured below?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would prevent overshoot of the Zero?
Calculate the normal force exerted by an object that has a mass of 5.7 kg.
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?
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 a flame-proof enclosure?
A mass of 6 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
(310104a) The valve body contains some of the vital components in a valve. Which of the components below would be responsible for a valves flow characteristic?
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 type of fire extinguisher can have a large tapered nozzle?
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."?
There are many studies on how pressure and force affect fluids. "Horizontal runs do not increase pressure." is one of the principles of which answer below?
In the fraction A/B, is B the denominator?
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
There are several different types of pressure tube available. Which of the type of tube below would have the best thermal and longevity properties?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "V₁T₂=V₂T₁"?
Solve the equation:(4)(5)+4
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would convey the movement of the drive arm to the range arm?
Calculate 4/7 + 2/5, and state answer as a proper or mixed fraction
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."?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
Locking out energy sources physically is a vital part of servicing valves. Which of the valves below would you use a circular lockout device on the handle?
Certain categories of tubing has specific applications in industry. Which of the categories below would be used in applications where actuator energy is carried to an FCE?
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be best suited to a valve that would be connected to a flange that was one-holed?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
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?
A volume booster is not a positioner.
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?
Solve for the missing angle.
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would assessing the pen arms and chart plate be?
There are many different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁T₂=P₂T₁"?
The inert purge gases for GMAW and GTAW welding processes are non-toxic, but are still dangerous. In what situation below would these gases be a danger?
How many electrons does 134.5 x 10¹⁹ represent?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve having the solder flow toward the heat over the joint?
For every gas law there is a corresponding equation. Which of the gas laws below developed with the addition of Avogadro's Gas Law?
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to density." is one of the principles of which answer below?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type L tube type typically have?
When servicing or troubleshooting a valve there are several terms that are used for specific actions. Which of terms below would be associated with the verification an individual isolation?
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "A"?
From the information given in the diagram below, what is the total resistance if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?