A randomized 100 question test from a pool of 1236 questions, good luck!
A moment balance negative feedback system is a force balance system?
From the information given in the diagram below, what is the current flowing on branch R3?
(310104b) There are several connection methods available for valve installation. Which of the connection methods below would be best suited to a valve that would require constant replacement?
If a pressure change of 20 kPa to 60 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 7.5 cm and the effective area of the diaphragm is 0.09 m^2
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as electrical/electronic circuitry that is incapable, under normal operating conditions, of causing ignition of a specified flammable gas-air, or vapor-air,mixture?
"Two angles that add to 180 degrees," is a description of which mathematical term?
To move 75 C across two points. when the voltage is 10 V, how much energy is required?
(310104d) There are several features available on valve positioners in industry today. Which of the features below can be best described as one that uses negative feedback in it's operation?
(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?
Lifting a load with rigging is an involved and potentially dangerous task. When working with slings, which of the angles below is the commonly used safe lifting angle?
"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?
"A fraction in which the numerator is greater than the denominator", is a description of which type of fraction?
"An element or device which receives information in the form of 4-20 mA and coverts it to information in the form of 3-15 psig." is the best description of which of the terms below?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would prevent overshoot of the Zero?
1 pound mass is equal to?
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?
If a closed tank is pressurized to 105.345 kPa and the pressure gauge at the bottom of the tank reads 198.456 kPa, what head (in feet) of a liquid with a R.D. of 0.11 is contained in the tan
Alternating current is bi-directional.
In a baffle-nozzle-restrictor motion detector the:
Give the absolute pressure in a vessel given a vacuum gauge reading of 5.3 inches of Hg and a local barometric reading of 43.5 inches of Hg.
"Is the change in velocity divided by the elapsed time for the change to be completed." is the description of which mathematical term?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen pressure adjustment/verification be?
Which of the following measurements cannot be performed by a sliding caliper?
(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 it with a smaller one in a simple circuit?
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?
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?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
What pressure is exerted at the base of a tank that is 6.7 meters high, with a liquid that has a density of 1200 kg/m³?
Solder is a vital component of the soldering process. Which of the solders below is most commonly used for repair work done by hand?
"A version of mathematical notation in which the exponent of base ten must be divisible by three" is a definition of what?
State the number 45.7258 x 10¹¹ using engineering notation and round the answers to three significant digits.
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type ACR tube type typically have?
Pick the answer that will fill the blank. "_______ of the voltage would appear across the open circuit in a ______ circuit."
"A hazard within the workplace that can harm the body without necessarily touching it. Vibration and noise are examples of this type of hazards." This statement best describes which of the following hazard groups?
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a refrigeration system?
(310101c) When ordering a GP copper tubing size, it has to be precise. Which of the measurements below would be used for ordering copper tube?
If there was a need to control the process pressure upstream of the regulator, which one of the devices below would be used?
(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 connecting tubing to piping?
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
State the number 789342.61 using decimal notation and round the answers to three significant digits.
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "C"?
Determine x if 5:16=x:128.
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?
What volume does a substance that has a density of 1369 kg/m³ and has a mass of 4.50 kg?
Soldering is a common method of joining metals. To be effective the which of the items below must have a lower melting point than the parent metals?
(310105d) When dealing with displacement, there are two qualifiers used. Which of the answers below would be a quantity that is fully described by a numerical value alone?
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 0-9 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
What are the two main systems of negative feedback?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
Which pilot valve has two common supply connections, and two connections for output?
The symbol for a amperes is which of the below?
Gasses react to the increase or decrease of pressure in measurable ways. Which of the terms below describes the reaction of an enclosed gas to a pressure increase?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "6" in the picture below?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 145 kPag?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
If, for every 20 C of charge, 80 J of energy is available, what is the voltage?
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?
Many electrical properties have specific symbols attached to them. Which of the symbols below would be the correct for inductance?
There are subgroups of fuel for fires need to burn. Which of those subgroups would NGLs belong?
Which of the terms below is best described by the statement, "Current flows from the positive terminal to the negative"?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
Which type of valve is pictured below?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for oxidizing material?
There are many terms for specific electrical components. Which of the components below is best described as a passive electrical component with the primary function to limit the flow of electric current?
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."?
The trigonometric ratio of sine is calculated with which mathematical equation?
746 Watts is equal to which of the terms below?
A welder has set up a temporary fab area in a c-can. He has put 2 portable fans, one in the front and one in the back, in the c-can for ventilation. Based on the information provided, which type of ventilation is he using? Use the terms provided to choose the best answer.
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?
With the proper formula, "Work" is a measurable quantity. Which answer below represents the "work" part of that equation?
The result of a _______ actuator is installed with a ________ valve will be air-to-open
How many coulombs of charge pass though a given point in 1 second, if the current is 18mA
In the contract of apprenticeship, there are several responsibilities that all parties have. Which of the parties below would have the responsibility to permit the apprentice to register and attend technical training?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁n₂T₂=P₂V₂n₁T₁"?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, ensuring each source of energy to the work area has it's own isolation, would be which of the steps below?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "4"?
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to certification markings
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?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, verifying a physical lock or securing method is placed on all isolating devices, would be which of the steps below?
How many electrons does 134.5 x 10¹⁹ represent?
There are two very common types of metric vernier calipers. Which of the answers below best represents the minimum accuracy of a metric Vernier caliper?
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 "⅜" refer to?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 373.15 K?
In the SI system, what is the fundamental hydrostatic pressure equation
"This workplace hazard consists of substances, mixtures and materials that can be classified according to their health risks and dangers." This statement best describes which of the following hazard groups?
If tool crib attendant has 8 boxes of fittings, and one person takes 1 3/4 boxes, and another person takes 3 4/5 boxes, and another person brings back 2 1/4 boxes, how many boxes remain?
The statement, "Whatever is done to one side of an equation, can be done to the other side of the equation" is false.
(310105i) Any solid has inherent properties associated with it. Which of the terms below would best represent the final amount of stretch or elongation that the material undergoes during tensile testing?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the methods below would be best to run cable to location?
The common methods for classifying pipe is by NPS and DN. Which of the answers below are these methods used for the classification of piping?
"Is the side next to the angle of significance." is a description of which right angle triangle mathematical term?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
Materials with one to three electrons in their valence shell are considered what?
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?
The equation to compute mechanical advantage is which one of the below?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
