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 non-hazardous?
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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁T₂=P₂T₁"?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
What is the absolute pressure of a vessel given a barometric pressure of 78 kPa and a gauge reading of 90 kPa
Electrostatic generation can be happen in many conditions. Which of the answers below would correctly identify one of those conditions?
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is Amperes of the circuit?
What pressure does a column of liquid exert with a density of 48.9 lbs per cubic foot and a height of 6.5 feet
State the number 40.021 x 10⁻¹ using decimal notation and round the answers to three significant digits.
Electrostatic generation can be happen in many conditions. Which of the answers below would correctly fill the blank in the statement, "The generation of an electrostatic charge is ________ in conditions that are humid?"
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?
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 volume of a cylinder is calculated with which correct equation?
When 20 C passes by a point in a wire in 12 seconds, what is the current in amperes?
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 "The amount of opportunities for the atoms of the conductor to affect current flow per linear unit"
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
A mass of 6 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
What size of resistor must be connected in series with a 10k potentiometer to get an output of 7V to 20V if the supply of the circuit is 20V?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the thorough, precise safety details for workers?
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 R1?
(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?
The volume of a sphere is calculated with which correct equation?
How many coulombs of charge pass though a given point in 1 second, if the current is 18mA
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?
Solve for x: 45-200÷10=x
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?
If heat is removed from a metal, does it contract?
7 coulombs of charge require how many electrons?
A mass of 7 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
A moment balance negative feedback system is a motion balance system?
Faraday's law of induction states:
Convert 0.625 to a fraction.
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?
The ability of a material to concentrate magnetic lines of force within a material is called?
Magnetism has several terms that must be understood. Which of the terms below would best be defined as a measurement of the total magnetic field which passes through a given area?
There are several types of soldering irons that are available in industry. Which type of soldering iron below would a soldering pencil best refer to?
In the WHIMIS system, the workplace labels must display 3 pieces of information. Of the answers provided, choose the one that is not needed.
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 2 to non-hazardous?
(310102c) Resistors have several construction methods. Which of the resistors below would have 2 fixed terminals and a sliding contact?
In the SI system of measurements, there are several symbols used for magnetism. Which of the measurement units below would represent "relative permeability"?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the current of the circuit?
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?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of blue represent?
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?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
Tube fittings can be put into three general categories, each with distinct components. Which of the categories below requires a flared tube end, nut and sleeve?
What is the pressure generated by a mass of 5 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
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?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the thorough, precise safety details for employers?
A 3 kg mass is placed on a 4 cm diameter diaphragm, what is the pressure on the air under the diaphragm?
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 0-14 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
The prefix "Kilo" can be expressed as?
"Control devices that use the fluid medium that they control to obtain their energy" is a description of what?
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?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area where gases or vapours are present sufficient quantity to produce explosive or ignitable mixtures.
Moment balance Negative feedback system consists of:
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?
"Changes in temperature of a gas or object with no change in phase." is a description of which physics term?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "2" in the picture below?
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?
There are many terms that are used with precise measurements. Which of the answers below is the term used when the answer to a problem has more significant digits that the measurements that have been recorded?
In a simple circuit, if I= 5 A and R=4 ohms, what is the voltage drop over the resistor of the circuit?
In industry, electrostatic hazards are very important to understand. Which of the terms below is best described as a swift discharge of electric current between two objects with different charges and different numbers of electrons?
The prefix "Micro" can be expressed as?
Ohm's law states that:
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the most common of those methods?
There are many different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
What pressure is exerted at the base of a tank 6.5 meters high when filled with a liquid with a density of 1200kg/m³?
What are the three main elements of a regulator?
The two main functions of a negative feedback system are:
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the workers rights and responsibilities?
To perform a "Zero" adjustment the order of step(s) is/are?
The volume of a sphere is calculated with which correct equation?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "6" in the picture below?
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
There are several different ways to apply force to an actuator. Which one of the methods below would have the highest pressure transmission rate during operation?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁T₂=P₂V₂T₁"?
(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?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
If you have 40 hammers and 50 chisels, what is your ratio of hammers to chisels?
"The heat required to raise the temperature of the unit mass of a given substance by a given amount with no change in it's phase:, is a description of which physics term?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "4" in the picture below?
If a closed tank is pressurized to 145.345 kPa and the pressure gauge at the bottom of the tank reads 156.456 kPa, what head (in feet) of a liquid with a R.D. of 0.67 is contained in the tan
There are several common precision measurement tools available in industry. Which of the answers below best represents the tool pictured below?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would a "hose test" pass be required?
State the number 236.478 x 10¹¹ using scientific notation and round the answers to three significant digits.
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?
A mass of 5 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
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?
In a simple circuit, if E=4 V and R=2 ohms, what is the current of the circuit?
(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?
The result of a _______ actuator is installed with a ________ valve will be air-to-close
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?
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 terms that are used for specific actions. Which of terms below would be associated with the verification an individual isolation?
"Any point on a circuit where two or more current flows meet or are split." is the best description of which of the terms below?
There are several different ways to apply force to an actuator. Which one of the methods below would a rack and pinion actuator use for operation?
What is the formula to calculate Hydrostatic peressure