A randomized 100 question test from a pool of 1236 questions, good luck!
There are several properties to a circuit. Which of the terms below best defines the opposition to a change in current?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
With a reverse acting actuator, as the pressure increases:
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?
When allowing power to flow to a device, purging may be required beforehand. Which of the answers below best represents the complete volumes of air with positive pressure?
In the WHMIS system, "Infectious materials" is represented by which hazard class? Choose from the following answers.
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
"pressure developed by a column of liquid" is the definition of which term
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 "0.036" refer to?
Which of the terms below is best described by the following statement, "Defines the direction of current flow in an electrical circuit."?
(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?
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.
A 15 kg wagon is moving west with a speed of 3 m/s. Determine it's momentum.
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 "SS" refer to?
"If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A" is a description of which one of Newton's laws?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area with easily ignitable fibers or flyings, but the concentration of these fibers or flyings are not in quantities that would produce ignitable mixtures?
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?
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be referred to as a "Van Stone" flange connection?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
How many coulombs of charge pass though a given point in 1 second, if the current is 15mA
If a closed tank is pressurized to 16 psig and the pressure gauge at the bottom of the tank reads 31 psig, what head (in meters) of a liquid with a R.D. of 0.37 is contained in the tank
The use of process seals is required in some applications. Which one of the terms below is best described as a seal that has contacts the process?
"The displacement divided by the total time to complete the change." is the description of which mathematical term?
If heat is added to a metal, does it expand?
In soldering there are many terms used. Which of the terms below would best describe a poorly formed soldered joint?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen position adjustment/verification be?
"A valve that has a low pressure drop at high flow rates.", is the best description of which of the terms below?
A 100V power supply is outputting 2A, what size of resistor is in the circuit?
State 7 ⁹⁄₁₇ as an improper fraction.
Reduce and state answer as a proper or mixed fraction: ³⁴⁰⁄₁₆.
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
There are numerous steps to drilling with a power drill. Which answer below correctly identifies the size of the center punch mark in a piece to be drilled?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the SI relative temperature scale?
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 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?
There are subgroups of fuel for fires need to burn. Which of those subgroups would sulfur belong to?
5 coulomb of charge require how many electrons?
"A way of concisely showing the relationship between two quantities." is a description of which mathematical term?
"Is the change in velocity divided by the elapsed time for the change to be completed." is the description of which mathematical term?
"Hydrostatic" pressure is sometimes referred to as
Determine the voltage V(ad) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
The CEC generates a dust grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would metallic, hazardous dust belong to?
(310104a) There are only two major parts to a sliding stem control valve assembly. Which of the components below would best be described as a device that regulates flow with differential pressure??
(310105d) Efficiency is one of the benchmarks that is used for rating machines. Which of the measurement units below is used with efficiency itself?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Work" use as it's unit of measurement?
When an atom gains an electron, it is commonly referred to as which of the below?
All objects have mass which is affected by gravity. Which of the answers below represents the SI approximate value for acceleration due to gravity?
There are several broad categories of tubing applications. Which of the categories below would steel tube be most commonly used for?
If a closed tank is pressurized to 121.345 kPa and the pressure gauge at the bottom of the tank reads 175.456 kPa, what head (in feet) of a liquid with a R.D. of 0.56 is contained in the tan
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for more than 10, but less than 1000 hours a year?
From the information given in the diagram below, what is the current flowing on branch R2?
"A quantity, such as mass, length, or speed, that is completely specified by its magnitude and has no direction." is a description of which mathematical term?
In a simple circuit, if E=8 V and R=3 ohms, what is the current of the circuit?
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?
(310104d) Control valves have a number of accessories that they can use for a variety of applications. Which of the answers below would be best reflect the common accessory for valve plug placement accuracy?
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
From the information given in the diagram below, what is the current flowing on branch R1?
"An angle that measures less than ninety degrees but more than zero degrees" is a description of which mathematical term?
Convert 0.875 to a fraction.
The CEC generates a gas grouping based on the potential combustion, and results of combustion. Which of the groups below would non-metallic dust that is electrically conductive belong to?
With a direct acting actuator, as air pressure increases:
Calculate ¾ x ⅚, and state answer as a proper or mixed fraction
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be use "J" as it's unit of measurement?
If a closed tank is pressurized to 125.345 kPa and the pressure gauge at the bottom of the tank reads 186.456 kPa, what head (in feet) of a liquid with a R.D. of 0.05 is contained in the tan
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to depth." is one of the principles of which answer below?
Circular chart recorders have several specific accessories. Which of the answers below would best describe the accessory that moves the paper chart at a steady rate?
A tank contains a liquid that has a R.D. = 1.15. The depth of the liquid is 6.7 meters. What is the pressure in kPa at the base of the tank?
When an atom loses an electron, it is commonly referred to as which of the below?
Convert 0.125 to a fraction.
State the number 45.7258 x 10¹¹ using engineering notation and round the answers to three significant digits.
"Is a triangle with two congruent sides and congruent base angles." is a description of which mathematical term?
There are several different notations on a length of pipe. Which of the notations below would have the largest pipe diameter?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious biohazardous material?
Convert 4 ⅞ to an improper fraction.
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
In a simple circuit, if I= 2 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
"Energy" is a calculated quantity. Which of the units below would be used as the measurement of "Energy"?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the enclosures inlet airflow rate be measured for purging times?
The trigonometric ratio of cosine is calculated with which mathematical equation?
State the number 0.003402 using decimal notation and round the answers to three significant digits.
The desiccant head adsorbes water vapour due to which?
Alloy steels are very common in industry. Which of the types of alloy steel would "Austenitic" piping be?
"A simple circuit for measuring an unknown resistance by connecting it so as to form a quadrilateral with three known resistances and applying a voltage between a pair of opposite corners." is the best description of which of the terms below?
"6(5+15)=(6 x 5)+(6 x 15)" is an example of which mathematical law?
Which of the valves below would be used for isolation on each side of a control valve?
(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 Class 1 circuits that are controlled remotely?
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?
A mass of 6 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
Around most construction tasks, eye protection is important. The selection of eye protection will rest mainly with which of the following answers? Choose the best one that applies.
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
What are the three main elements of a regulator?
Express 60% as a reduced fraction.
"The lag in response exhibited due to the absorption of energy in a measuring instrument." is the best description of which term?
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 "ia" equipment can withstand?
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
OH&S recognizes that there are a number of hazards on any jobsite. Which of the answers below best represents the number of broad categories that it has grouped those hazards into?
"Is the quantity that expresses the extent of an enclosure of a two-dimensional figure or shape." is the description of which mathematical term?