A randomized 100 question test from a pool of 1236 questions, good luck!
(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?
The best description for "Span error" in relation to calibrating instruments is which of the following?
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."
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the answers below would be best describe a major difference between metal conduit and cable tray?
When selecting a valve for a piping system, several factors must be considered. Which of the terms below can be correctly described by the statement, "Constitutes the pressure differential generated between two defined points through various ares of loss."
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
The Alberta AIT Board has many responsibilities. Which of the answers below represents the Boards main responsibility?
If a closed tank is pressurized to 135.345 kPa and the pressure gauge at the bottom of the tank reads 172.456 kPa, what head (in feet) of a liquid with a R.D. of 0.14 is contained in the tan
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate mass?
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?
Determine the voltage V(bc) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
In a simple circuit, if I= 4 A and R=2 ohms, what is the voltage drop over the resistor of the circuit?
There are several types of soldering irons that are available in industry. Which type of soldering iron below would be used for speedy repairs where electrical power is restricted or unavailable?
How many coulombs of charge pass though a given point in 1 second, if the current is 16mA
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?
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?
From the information given in the diagram below, what is the total parallel resistance of the circuit?
The result of a _______ actuator is installed with a ________ valve will be air-to-open
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?
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?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of increasing hardness, but a reduction in ductility?
In the fraction A/b, is A the denominator?
State the number 23.569 x 10¹³ using engineering notation and round the answers to three significant digits.
1 kPa is equal to _____ psi
There are several varieties of manufactured resistors. Which of the answers below is generally regarded as the most common resistor?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
In the WHMIS system, "Other poisons" is represented by which hazard class? Choose from the following answers.
Alternating current is bi-directional.
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below is best defined as "A method that attempts to physically separate or isolate the electrical parts or hot surfaces from the explosive mixture."?
In the WHMIS system, "Compressed gas" is represented by which hazard class? Choose from the following answers.
What is the purpose of the PTC switch in a lithium battery?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 7 cm diameter filled with gas?
If the total error is 1.7 and the dead band error is is 0.5, what is the hysteresis value?
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?
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.
"A pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid," is a description of which principle?
Electromagnetism is a property of electrical charges moving through materials. Use one of the answers below to correctly fill in the blanks of the following sentence, "A magnetic fields strength in close proximity to conductor is _________ to the amount of current flowing through it."
"This workplace hazard consists of organisms or organic matters produced by these organisms that are harmful to human health." This statement best describes which of the hazards below?
There are several terms that are used specifically with flammable gases and liquids. Which of the terms below is best described as the temperature at which a particular organic compound gives off sufficient vapor to ignite in air?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the period while the capacitor gets to 5τ?
Solve for the hypotenuse.
(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 tubing around a tight corner?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
There are some troubleshooting issues that can arise while soldering. Which of the issues below would be best described as a heat transfer loss from the soldering tip?
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?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
Matter that is composed of more than one type of atom is called?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
There are several different types of carbon steel in any piping system. Which of the types below would have less than a 0.3% carbon content?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
If a battery has a rating of 120 Ah, theoretically it could provide 12 A for how long?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosures classification must be reduced from Class I, Zone 1 to non-hazardous?
What are the 2 major parts of a control valve?
Loss of pressure is a by product of several factors in a piping system. If the length of a straight section of pipe has the diameter doubled, which of the answers below would be the result?
To move 175 C across two points. when the voltage is 30 V, how much energy is required?
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?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
"Is the quantity that expresses the extent of an enclosure of a two-dimensional figure or shape." is the description of which mathematical term?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 145 kPag?
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?
When making an angularity adjustment, what is the first adjustment made?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would intrinsically safe equipment be primary used?
(310105d) Displacement quantities are all a measurable amounts. Which of the answers below would "Kinetic friction" use as it's unit of measurement?
convert 4 ⁴⁄₁₁ to an improper fraction.
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?
"The distance traveled divided by the time elapsed to reach final position." is the 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?
(310102m) There are numerous electrical devices in a circuit. Which of the devices below can be best described as a passive two-terminal component used to store and release electrical energy?
ESD is a major issue for the failure of electrical components. Which of the answers below would best represent the minimum discharge voltage that could damage electrical equipment?
There are two different ways of identifying general purpose tube. If you see "⅜ in-SS-0.036" printed on the outside of the tube, what would the "⅜" refer to?
"The displacement divided by the total time to complete the change." is the description of which mathematical term?
1 psi is equal to _____ kPa
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
The prefix "Milli" can be expressed as?
Calculate the normal force exerted by an object that has a mass of 5.7 kg.
The perimeter of a Triangle is calculated with which correct equation?
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is the power absorbed by R2?
101.325 kPa is equal to?
"2+(9+7)=(2+9)+7" is an example of which mathematical law?
There are several different types of carbon steel in any piping system. Which of the types below would have more than a 0.6%% carbon content?
There are many different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
If heat is removed from a metal, does it contract?
What is the name of the part of a drill bit that gets fitted into the drill spindle?
The perimeter of a square is calculated with which correct equation?
Choose the answer below that has the words in order to correctly fill in the blanks. "A ______ in per unit volume temperature of a conductor, offers ______ resistance to current"
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?
There are many terms associated with "Energy". Which term below is correctly described as, "is energy stored in a spring."?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
When an atom loses an electron, it is commonly referred to as which of the below?
What is usually referred to when loading an ammeter?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the period when the capacitor gets to 5τ?
"An electrical circuit that allows a current to travel along an unintended path with no or a very low electrical impedance." is the best description of which of the terms below?
If a closed tank is pressurized to 103.345 kPa and the pressure gauge at the bottom of the tank reads 145.456 kPa, what head (in feet) of a liquid with a R.D. of 0.37 is contained in the tank?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Ethylene belong to?
(310105i) Physics has may "laws" that can be applied in industry. Which of the "laws" below would relate best to the strain of a material is proportional to the stress applied
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the least capacitance?
Occupational exposure limits have threshold limits. There are three of these threshold limits that are used, of the answers provided, which is not a value used?
What provides the seal on the valve stem to prevent leakage of the process?