A randomized 100 question test from a pool of 1236 questions, good luck!
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?
1 psi is equal to _____ kPa
(310105i) Any solid has inherent properties associated with it. Which of the properties below would be referred to as the ability to accept or resist an external force trying to deform it?
The perimeter of a square is calculated with which correct equation?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used with a pressurized enclosure that contains equipment which is capable of ignition?
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?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as both a measuring and loading element?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
What is the term used to describe the total opposition to current flow in an AC circuit?
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below would best be described as,"the measure of the intensity of the force imposed on this object by the local gravitational field"?
There are two different classification of magnets. Which of the items below would be considered a permanent magnet?
There are several different types of drills tools used in industry. Which of the drills below would be best used for exacting work, hole no bigger than a ½" in diameter?
Matter that is composed of more than one type of atom is called?
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as a refinement in a measurement?
"Is an area where no movement occurs with the actuators change in direction." describes which term?
The supplier label:
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 varieties of manufactured resistors. Which of the answers below is constructed with a glass core?
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?
(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?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "L" represent?
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."?
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for less than 10 hours a year?
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?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
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?
The symbol for resistance is which of the below?
Determine x if 5:16=x:128.
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?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the most common of those methods?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for corrosive material?
Faraday's law of induction states:
The symbol for a voltage source is which of the below?
Solve for the missing angle.
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?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
The best description for "Zero adjustment" in relation to calibrating instruments is which of the following?
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below can be best described as the the process of accumulating energy in a capacitor?
The intensity of sound is measured in dBA. In the workplace the suggested dBA level for wearing hearing protection over an 8 hour day would be which of the below?
A mass of 6 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
1 pound force is equal to
If the total error is 1.4 and the dead band error is is 0.6, what is the hysteresis value?
What is the smallest charged particle?
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?
State the number 45.7258 x 10¹¹ using engineering notation and round the answers to three significant digits.
There are several definitions used frequently in the CEC. "Limitation of current and voltage in the circuit prevents excessive heat and the formation of ignitable sparks" would best describe which of the answers below?
With the proper formula, "Work" is a measurable quantity. Which answer below represents the "force that is applied" part of that equation?
There are several different types of hammers used in industry. Which of the hammers below best represents the following picture?
Ohm's law states that:
(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 maintenance of instruments in hazardous locations of instruments?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the pressure of a given mass of gas varies directly with the absolute temperature of the gas, when the volume is kept constant."?
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 0-12 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
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 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?
If heat is added to a metal, does it expand?
A 3 kg mass is placed on a 4 cm diameter diaphragm, what is the pressure on the air under the diaphragm?
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?
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?
There are many terms associated with "Energy". Which term below is correctly described as, "the energy of an object in motion"?
"Is the measure of the amount of space inside of a solid figure, like a cube, ball, cylinder or pyramid." is the description of which mathematical term?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
"To cause the valve to close, an increase in air pressure to the actuator is required" is the definition of?
(310104b) Valve disassembling is a fundamental part of the Instrumentation trade. Which of the hazards below would be of primary importance to eliminate when disassembling a sliding stem actuator?
"This physical factor within the environment that harms the musculoskeletal system." This statement best describes which of the hazard groups below?
When wire rope is used for lifting purposes, there are several safety factors involved. Which of the answers below best represents the safety factor for elevators used by the public?
How many coulombs of charge pass though a given point in 1 second, if the current is 16mA
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious material with immediate and serious toxic effects?
State the number 13487000 using scientific notation and round the answers to three significant digits.
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for converting a measured PV into an output signal?
To perform a "Zero" adjustment the order of step(s) is/are?
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?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a binder?
The basic unit of matter is called?
"Control devices that use the fluid medium that they control to obtain their energy" is a description of what?
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 only?
"Two external forces acting on an object or surface that are not in opposition of each other;" is a description of what type of stress?
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Power" use as it's unit of measurement?
Isolating process lines with a physical barrier is one of the steps for safe field servicing of a control valve. Which of the blank types below would best be described a physical barrier between two flanges of sufficient diameter to fill the entire diameter of the pipe to prevent the passing of material beyond that point?
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?
Which of the resistors below is best described by the following statement, "A variable resistor making use of three contacts whose resistance varies with an adjustment of a sliding contact."?
From the information given in the diagram below, what is the current flowing on branch R2?
There are some options when deciding to lower the classification of a hazardous atmosphere within an enclosure. Which of the methods below would be the best method for the removal of a hazardous gas?
"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?
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for receiving an output signal and converting that into a PV value?
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?
When wire rope is used for lifting purposes, there are several safety factors involved. Which of the answers below best represents the safety factor for rigging in general?
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?
The perimeter of a Triangle is calculated with which correct equation?
The CEC generates a hazardous area result by investigating the contents of the area. Which of the designations below would be used based on the explosive characteristics of the material?
A fume extracting welding gun works well with which other source of ventilation? Choose the best answer from the choices below
A _________ has the air connection usually above the diaphragm
Which of the terms below is best described by the statement, "Current flows from the positive terminal to the negative"?
From the information given in the diagram below, what is the voltage drop over R3, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
(310104d) A control valve is one of many FCEs that are used in industry. Which of the answers below reflects the relationship between a control valve and the process variable?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
There are several components to a properly soldered joint. Which of the components below would be used during soldering to remove the oxide layer?
In a simple circuit, if I= 4 A and R=2 ohms, what is the voltage drop over the resistor of the circuit?
The prefix "Centi" can be expressed as?