A randomized 100 question test from a pool of 1236 questions, good luck!
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?
Class 1 or 2 Safety Glasses are typically worn by most warehouse workers. Which of the following do they protect from?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would positively pressurized equipment be primary used?
In the WHMIS system, "Compressed gas" is represented by which hazard class? Choose from the following answers.
There are many different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
Capacitance is a measurable quantity. Which of the answers below represents the SI unit for capacitance?
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?
In the SI system, the unit of force is?
Convert 4 ⅞ to an improper fraction.
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Power" use as it's unit of measurement?
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 decrease?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for dangerously reactive material?
Having to convert between SI and USCS measurements is commonplace in industry today. Which of the answers below is the correct conversion for 45 lbf?
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
If the total error is 1.4 and the dead band error is is 0.6, what is the hysteresis value?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
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."?
If a battery has a rating of 60 Ah, theoretically it could provide 3.3 A for how long?
A column of water with a density of 43 lbs per cubic foot and a height of 65 inches, exerts what amount of pressure ?
Inductive reactance is the _________________ to change in current created by coil in an AC circuit.
What provides the seal on the valve stem to prevent leakage of the process?
34.450 in engineering notion is what?
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 three types of radiant energy that is given off by a typical welding arc. Choose the one that does not apply from the answers below.
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to ignition temperatures?
There are several properties to a circuit. Which of the terms below best defines the opposition to a change in current?
There are several different notations on a length of pipe. Which of the notations below would have the smallest pipe ID?
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?
State 7 ⁹⁄₁₇ as an improper fraction.
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 industry, electrostatic hazards are very important to understand. Which of the answers below correctly identifies an work station that has an anti-static mat on it?
there are numerous pieces of rigging equipment. Which of the answers below correctly identifies the item in the picture that follows?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosure needs do be reduced from a Class I, Zone 1 to a Class I, Zone 2?
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?
Reduce ¹²⁄₆₀ and state as a proper or mixed fraction.
A pressure gauge at the bottom of a tank indicates a pressure of 7.9 psi. The relative density of the liquid is 0.87. What is the depth of the liquid in feet?
Calculate ⁶⁄₇ ÷ ⁴⁄₅, and state answer as a proper or mixed fraction
"An adjustment that progressively increases or decreases reading over the scale, but does not change the base point" is the definition of which adjustment?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe the letter "A" in the picture below?
Convert the following quantities to the units asked for: 1.75 hours to minutes.
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 average velocity of the car?
In the WHMIS system, "Dangerously reactive material" is represented by which hazard class? Choose from the following answers.
There are several types of soldering irons that are available in industry. Which type of iron below would rely on a voltage being produced when the tip touches the work to be done?
(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?
Movement of the actuator stem by air pressure applied to a flexible membrane is a characteristic of which actuator?
"To cause the valve to close, an increase in air pressure to the actuator is required" is the definition of?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "6" in the picture below?
One coulomb is equal to how many electrons?
All safety enclosures are tested in the factory to certify the maximum pressure released in an explosion that it can withstand. Which of the answers below would describe the testing required for a explosion-proof enclosure?
What are the two types of magnet?
If side "A" is equal to 45mm and side "B" is equal to 76mm, solve for side "C".
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious material with other toxic effects?
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
What are the 2 major parts of a control valve?
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 Zone 2?
What is the main purpose of valve positioners?
(310102m) The charging and discharging of a capacitor is a mathematical relationship. In the equation, τ=R x C, which of the answers below would best refer to the "C"?
Even though explosion safety equipment must be able to deal with extreme pressures, maintenance must also be allowed to occur. Which of the enclosures below would allow for both maintenance and protection from explosion?
In Unified National nomenclature what does the "12" represent in this bolt class- 1/2-12-UNC 2B
What is the mass that is placed on a piston above a gas if the pressure exerted is 78554 Pa on a cylinder that has a 3 cm diameter
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
State the number 479.3 using engineering notation and round the answers to three significant digits.
Tube fittings can be put into three general categories, each with distinct components. Which of the categories below includes a bite type fitting?
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?
What is the purpose of the PTC switch in a lithium battery?
A true force balance negative feedback system is a force balance system?
"2+(9+7)=(2+9)+7" is an example of which mathematical law?
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?
Newton's second law is also known as?
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?
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?
When dealing with welding gases and fumes, it is a good practice to limit your exposure to them. The first option to reduce exposure to these fumes and gases is to weld in which of the following locations?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
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?
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
Many electrical properties are a measured quantity, needing a unit of measurement. Which of the units below would be the correct unit of measurement for inductance?
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 industry committee network is made up of three bodies. Which of the bodies below acts as a link between the AIT Board and the LACs?
There are numerous types and styles of valves in industry. Which of the actuators below best represents the following picture?
To move 50 C across two points. when the voltage is 5 V, how much energy is required?
Tubing has many distinctive applications in industry. Which of the associations below provides the standards commonly used for tubing in instrumentation?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe the letter "C" in the picture below?
"A hazard within the workplace that can harm the body without necessarily touching it. Vibration and noise are examples of this type of hazards." This statement best describes which of the following hazard groups?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop at R1?
There is a safe ratio for the use of extension ladders. If there is a ladder extending 18 ft vertically, how far from the wall should the base of the ladder be?
In a simple circuit, if E=4 V and R=1.75 ohms, what is the current of the circuit?
"An angle is one which is more than 90° but less than 180°" is a description of which mathematical term?
Use the answers below to fill in the blanks of the following sentence. "The _____ of the plates in a capacitor is _______ to it's capacitance."
State the number 789342.61 using decimal notation and round the answers to three significant digits.
Convert the following quantities to the units asked for: 4572 cm to yards.
If heat is added to a metal, does it expand?
"Two angles that add to 180 degrees," is a description of which mathematical term?
State the number 236.478 x 10¹¹ using scientific notation and round the answers to three significant digits.
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, removing securing devices and any isolation points once work area is deemed safe, would be which of the steps below?
The use of process seals is required in some applications. Which one of the terms below is best described as a seal that prevents the process from passing into the electrical conduit in the event of the initial seal failure?
"The displacement divided by the total time to complete the change." is the description of which mathematical term?
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
"Increased flow rates occur at the end of the valve stroke, with low flow rates at the initial opening of the valve." is the best description of which of the terms below?
The types of tube available in industry are somewhat application specific. Which of the tube types would be best suited for a corrosive process?