A randomized 100 question test from a pool of 1236 questions, good luck!
"Is an electrical quantity that measures how the device or material reduces the electric current flow through it." is the best description for which of the terms below?
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?
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 145 °C to °F?
(310105d) Hp is a common term seen to rate power. Which of the answers below reflects the amount of work done in 15 mins by a 45 hp motor?
Express 60% as a reduced fraction.
"At any junction in an electrical circuit, the sum of currents flowing in equal to the sum of currents flowing out ." This statement is the best description of which of the electrical laws below?
Magnetism has several terms that must be understood. Which of the terms below would best be defined as the number of magnetic lines of flux that pass through a certain point on a surface?
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
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?
Calculate the gain when a change from 0.25 psig to 1.5 psig in nozzle backpressure and a change from 3 psig to 20 psig in the relay output occurs.
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would have two tube ends offset and one pipe connector?
Batteries come in two common varieties. Which of the terms below can relate best to a rechargeable cell?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "1" in the picture below?
There are several different types of hammers used in industry. Which of the hammers below best represents the following picture?
There are three types of radiant energy that is given off by a typical welding arc. Choose the one that does not apply from the answers below.
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 decrease in resistive load?
State ⁴⁷⁸⁄₉₈ as a mixed fraction.
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the creation of two equal ranges from standard range?
(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?
To move 50 C across two points. when the voltage is 5 V, how much energy is required?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
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?
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the outlet airflow rate be measured for purging times?
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.
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?
To move 100 C across two points. when the voltage is 15 V, how much energy is required?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the minimum safety standards set for employers?
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."?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious biohazardous material?
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?
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
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 two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
If a battery has a rating of 90 Ah, theoretically it could provide 4.5 A for how long?
Express ³²⁄₄₄ as a percent.
If a closed tank is pressurized to 12 psig and the pressure gauge at the bottom of the tank reads 56 psig, what head (in meters) of a liquid with a R.D. of 0.75 is contained in the tank
Of the adjustments below, which is the most common adjustment made?
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as the degree to which the result of a measurement that conforms to the required standard.
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for corrosive material?
When used to cut mild steel. what is the recommended angle for a cold chisel?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Acetylene belong to?
When 20 C passes by a point in a wire in 12 seconds, what is the current in amperes?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would explosion-proof equipment be primary used?
The perimeter of a square is calculated with which correct equation?
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.
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an iron core is more preferable than an air one.
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
The prefix "Centi" can be expressed as?
The result of a _______ actuator is installed with a ________ valve will be air-to-open
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
(310105d) Heat is produced when friction occurs during motion. Which of the terms below correctly identifies the type of friction that produces of this heat?
Electrostatic generation can be happen in many conditions. Which of the answers below would correctly identify one of those conditions?
(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?
(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 larger one in a simple circuit?
Of the clothes to wear while cutting, welding or grinding, choose from the answers below the best material to have.
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the relationship between the volume and temperature in a fixed mass of gas."?
Determine the voltage V(ad) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
Convert 0.125 to a fraction.
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for flammable material?
"This type of respirator has two different types that are available. These are continuous flow, and pressure demand respirators. " This statement best describes which of the following respirators?
This pressure to force converter device is used in situations where space is limited?
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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "V₁T₂=V₂T₁"?
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 is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 6 cm diameter filled with gas?
Electrical conduit is used to protect the cables running to the instruments. Which of the types of conduit below would be used in a corrosive atmosphere?
In any intrinsically safe loop there are several main items that are vital to the loop. Which of the answers below contains those items?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
State the number 0.00007342 using engineering notation and round the answers to three significant digits.
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Labels are an important piece of the WHIMS structure. Which of the labels below would be used when damage occurs to the original supplier label?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "B"?
There are many different applications for copper tube. Which of those applications below would have the greatest internal operating pressure ratings?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, verifying energy sources in work area are without power, would be which of the steps below?
There are several different ways to apply force to an actuator. Which one of the methods below would a scotch yoke actuator use for operation?
State the number 45.7258 x 10¹¹ using engineering notation and round the answers to three significant digits.
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?
How many electrons does 134.5 x 10¹⁹ represent?
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?
What is the area of a semi-circle with a diameter of 2.45m?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would generally not be used to protect current electronic instrumentation?
What provides the seal on the valve stem to prevent leakage of the process?
State the number 0.05634 x 10⁻¹³ using scientific notation and round the answers to three significant digits.
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
In industry, electrostatic hazards are very important to understand. Which of the terms below can correctly be described as a charge created when two objects that are not good electrical conductors are rubbed together, and electrons from one of the objects rub off onto the other?
One coulomb is equal to how many electrons?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
convert 4 ⁴⁄₁₁ to an improper fraction.
"Is a triangle with two congruent sides and congruent base angles." is a description of which mathematical term?
Convert 0.875 to a fraction.
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a measuring element?
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?
In the WHMIS system, "Dangerously reactive material" is represented by which hazard class? Choose from the following answers.
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
In the fraction A/B, is A the numerator?
Each one of the installations of purge/pressurization has its own requirements for internal equipment. Which of the installations below would be able to use equipment rated as general purpose?
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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=ZnRT"?