A randomized 100 question test from a pool of 1236 questions, good luck!
There are numerous types and styles of valves in industry. Which of the additions to a scotch yoke valve allows for proportional positioning?
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?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "tolerance" rating?
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?
Convert 14 "Hg to kPa(a). Barometer is 18.6 psi
In the WHMIS system, "Oxidizing material" is represented by which hazard class? Choose from the following answers.
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?
(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?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
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?
"A whole number and a fraction combined into one number", is a description of which type of 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?
There are many different types and styles of tubing in industry, but they can all be grouped into categories. Which of the answers below best represents all of the categories of tubing?
The volume of a cylinder is calculated with which correct equation?
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
(310102m) The charging and discharging of a capacitor is a mathematical relationship. In the equation, τ=R x C, which of the answers below would best refer to the "R"?
Reduce and state answer as a proper or mixed fraction: ¹²⁄₄₈.
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of green represent?
Calculate 4/7 + 2/5, and state answer as a proper or mixed fraction
Due to a lengthy transmission distance a control valve is responding slowly. The device that would improve the response speed of the valve would be?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would a "hose test" pass be required?
101.325 kPa is equal to?
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
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?
Which of the terms below is best described by the statement, "Current flows from the positive terminal to the negative"?
The power source is 24V and the resistance is 8Ω what is the current of the circuit?
(310103f) Strain type gauges are commonly found in industry. Which of the gauges below is known to be non-linear?
Unless otherwise stated by the manufacturer, there are several general practices when installing a chart recorder. Which of the answers below correctly identifies the maximum distance between DPU and recorder?
The trigonometric ratio of cosine is calculated with which mathematical equation?
The result of a _______ actuator is installed with a ________ valve will be air-to-open
If a pressure change of 20 kPa to 90 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 5.5 cm and the effective area of the diaphragm is 0.065 m^2
(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?
14.696 psia is equal to?
(310105i) Any solid has inherent properties associated with it. which of the tests below refers to the application of force to a material and measures the specimen's response to the stress.
(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?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
1 pound force is equal to
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?
If angle "Y" is equal to 28 degrees, solve for angle "X"
(310104b) Valves are a piece of equipment that needs to be replaced over time. Before removing,or servicing, an high pressure in-line valve, which of the procedures is the worker also responsible for?
Which organization sets standards for boots and safety glasses in Canada?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would be adjusted for any slight angularity issues?
Alloy steels are very common in industry. Which of the types of alloy steel would "Martensitic" piping be?
"A hollow cylindrical trim element that is sometimes used as a guide to align the movement of a valve plug with a seat ring." is the best description of which of the terms below?
What are all the variables that can be measured when dealing with gases?
There are many different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
"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?
"This type of breathing apparatus is designed to allow a reserve of air for 5-10 minutes." The answer below that this statement best describes is which one?
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?
The prefix "Centi" can be expressed as?
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be equal to "W" as a of measurement?
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?
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.
"Increased flow rates occur at the end of the valve stroke, with low flow rates at the initial opening of the valve." 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 use a handwheel for operation?
The volume of a cube is calculated with which correct equation?
"The tube straightening out is a direct result of the pressure acting inside the tube" is the principle of operation of which pressure to force converter?
With a direct acting actuator, as air pressure increases:
A fume extracting welding gun works well with which other source of ventilation? Choose the best answer from the choices below
The prefix "Milli" can be expressed as?
If a closed tank is pressurized to 15 psig and the pressure gauge at the bottom of the tank reads 36 psig, what head (in meters) of a liquid with a R.D. of 0.45 is contained in the tank
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a pressure sensing diaphragm in the creation of an output signal?
Which type of valve is pictured below?
"pressure developed by a column of liquid" is the definition of which term
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.
"Having only magnitude, not direction, such as distance", is a description of which mathematical term?
Before entering a container to work, your Journeyman asks for a gas test to be done. The foreman agrees and puts the sniffer close to the roof of the container. Of the following answers, which gas would he be testing for?
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?
(310103d) There are several different designs of regulator. Which of the loading element designs below would have to slowest response to changes in downstream pressures?
A pressure gauge at the bottom of a tank indicates a pressure of 7.9 psi. The relative density of the liquid is 0.87. What is the depth of the liquid in feet?
The properties of a gas are unique to its molecular make-up. Which of the terms below would best be defined as "is the pressure required to liquefy a gas at its critical temperature."?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a medical gas system?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "3"?
A 15 kg wagon is moving west with a speed of 3 m/s. Determine it's momentum.
When 125 C passes by a point in a wire in 8 seconds, what is the current in amperes?
It is a good trade practice to transport gas cylinders secured and upright. From which act below did this practice come from?
A mass of 7 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
The result of a _______ actuator is installed with a ________ valve will be air-to-close
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate mass?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 212 °F?
(310101c) Although soldered fittings for tube can be used on pressure and DWV applications, there are some differences between the fittings. Which of the answers below describes one of the major differences that the DWV fittings have when compared to pressure fittings??
The point when increasing current will not increases magnetism in an electromagnet is call?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 373.15 K?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "2" in the picture below?
"To cause the valve to open, an increase in pressure to the actuator is required" is the definition of?
A car traveling west has an initial speed of zero, and accelerates at a rate of 4 m/s² for 6 seconds. What is the average velocity of the car?
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 0-15.5 meters. What is the fluid level if the transmitter signal is 78 kPa
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?
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 3-15 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
The height of a free standing or rolling scaffold is restricted to no more than 3 times the smallest base dimension. This guideline comes from which of the acts below?
If, for every 20 C of charge, 60 J of energy is available, what is the voltage?
A 100V power supply is outputting 2A, what size of resistor is in the circuit?
In the fraction A/B. is B the numerator?
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most able to discharge loads at high rates for an extended period of time?
State the number 40.021 x 10⁻¹ using decimal notation and round the answers to three significant digits.
The result of a _______ actuator is installed with a ________ valve will be normally open, fail closed
"Is the side across from a given angle of significance." is the description of which right angle triangle mathematical term?
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would capillary or impulse line to the instrument be used?
Which are the two major categories of pressure regulators?