A randomized 100 question test from a pool of 1236 questions, good luck!
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 a Class I, Zone 2?
When 150 C passes by a point in a wire in 6 seconds, what is the current in amperes?
To perform an "Angularity" adjustment, the order of step(s) is/are?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "3" in the picture below?
(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??
A moment balance negative feedback system is a motion balance system?
Which type of valve is pictured below?
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
Chart recorders have a couple of specific applications. Which application below would best describe the charting of results from a flow rate across an orifice plate?
There are several broad categories of tubing applications. Which of the categories below would steel tube be most commonly used for?
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?
How many coulombs of charge pass though a given point in 1 second, if the current is 15mA
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type K tube type typically have?
60% of 54 is what?
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below relates best to the plotting of a capacitor that is alternately charging and discharging?
From the information given in the diagram below, what is the total current if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
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?
A mass of 5 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
What type of fire extinguisher can have a large tapered nozzle?
When used to cut mild steel. what is the recommended angle for a cold chisel?
Of the list below, what is the standard unit of quantity of electricity in the International System of Units (SI)?
To move 225 C across two points. when the voltage is 45 V, how much energy is required?
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 smallest diameter of the thread?
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?
Materials with one to three electrons in their valence shell are considered what?
If, for every 20 C of charge, 80 J of energy is available, what is the voltage?
State ⁶⁵⁄₁₄ as a mixed fraction.
There are some terms that are associated with capacitors. Which of the terms below is defined as the permittivity of a given material relative to that of the permittivity of a vacuum.
When an atom loses an electron, it is commonly referred to as 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?
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.
A mass of 6 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of increasing erosion and wearing down resistance?
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?
In the contract of apprenticeship, there are several responsibilities that all parties have. Which of the parties below would have the responsibility to permit the apprentice to register and attend technical training?
There are subgroups of fuel for fires need to burn. Which of those subgroups would LPGs belong?
Calculate the mass of a substance that has a density of 1479 kg/m³ and occupies a volume of 0.00631 m³
Density is a key component for measurement. Which of the formulas below represent the proper equation to find the density of an object?
The equation to calculate density is?
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 several different ways to apply force to an actuator. Which one of the methods below would use a solenoid for operation?
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?
Factors affecting induced voltage include:
Convert 18.5 psi into inches W.C.
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
WHIMIS was put in place to regulate controlled products in the workplace. Which of the federal regulatory bodies below would oversee the suppliers of these products?
Convert the following quantities to the units asked for: 27000 seconds to hours.
"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?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "A"?
Choose the answer below that has the words in order to correctly fill in the blanks. "A per unit volume of free electrons that is _______, offers ______ resistance to current"
The basic unit of matter is called?
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described an interaction that causes an affected object to This results in an alteration to the state of the object's momentum?
(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 2?
Which of the valves below would be used for isolation on each side of a control valve?
(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?
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?
Proper choices need to be made with the mounting of instruments. Which of the answers below would be a disadvantage of a instrument stand that has a cable mount?
State the number 479.3 using engineering notation and round the answers to three significant digits.
A mass of 7 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
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?
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 relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 212 °F?
The result of a _______ actuator is installed with a ________ valve will be normally closed, fail open
The best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
Scaffolds use is daily occurrence at most job sites. Any scaffold that is constructed must be designed to handle _____ times the potential load placed on it. Use that answers below to correctly fill in the blank.
The volume of a sphere is calculated with which correct equation?
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 "i" equipment can withstand?
The Si unit for measuring force is the Newton. Which of the answers below is equal to an object that has a mass of 65830 g?
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."?
There are several varieties of manufactured resistors. Which of the answers below is constructed with a glass core?
"A version of mathematical notation in which the exponent of base ten must be divisible by three" is a definition of what?
Give the absolute pressure in a vessel given a vacuum gauge reading of 5.3 inches of Hg and a local barometric reading of 43.5 inches of Hg.
There are many studies on how pressure and force affect fluids. "Fluid pressure is exerted in all directions." is one of the principles of which answer below?
If, for every 15 C of charge, 45 J of energy is available, what is the voltage?
"Changes in temperature of a gas or object with no change in phase." is a description of which physics term?
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most common?
(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 grounding of less that 50V circuits?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve ensuring contamination free parts and soldering tip?
Tubing has many distinctive applications in industry. Which of the associations below provides the standards commonly used for tubing in instrumentation?
(310102c) Resistors have several construction methods. Which of the resistors below would have 1 fixed terminal and a sliding contact?
(310102m) A capacitor's voltage increases in a very predictable way. Which of the answers below represents the total time constant intervals required to achieve a full charge in a typical capacitor?
(310103f)There are several methods for measuring process variables. Which of the transmitters below would use cavities filled with oil used as a dielectric in the creation of an output signal?
In the WHIMIS system, the workplace labels must display 3 pieces of information. Of the answers provided, choose the one that is not needed.
There are several advantages and limitations to installing a zener barrier as an intrinsically safe barrier. Which one of the answers below can be considered an advantage of this style of barrier?
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 0-15.5 meters. What is the fluid level if the transmitter signal is 78 kPa
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
In the contract of apprenticeship, there are several responsibilities that all parties have. Which of the parties below would have the responsibility to complete acceptance and release cards are properly filled out and submitted to the proper authority?
A mass of 6 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
When selecting a hammer to use, what would "weight of head" help determine?
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?
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
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type DWV tube type typically have?
(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??
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the least capacitance?
(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?
There are numerous types and styles of valves in industry. Which of the additions to a scotch yoke valve allows for proportional positioning?
A lithium cell can produce about _____ times the voltage of an alkaline cell.