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Instrumentation: FIRST PERIOD

A randomized 100 question test from a pool of 1236 questions, good luck!

There are many different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
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 1000 hours a year?
If a closed tank is pressurized to 18 psig and the pressure gauge at the bottom of the tank reads 39 psig, what head (in meters) of a liquid with a R.D. of 0.76 is contained in the tank
Calculate the normal force exerted by an object that has a mass of 5.7 kg.
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?
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 transporting workers?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
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 "ib" equipment can withstand?
From the information given in the diagram below, what is the current flowing on branch R1?
There are several different ways to apply force to an actuator. Which one of the methods below would a pneumatic source of air not be required for operation?
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?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Which organization sets standards for boots and safety glasses in Canada?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of improving the resistance to metal fatigue and facturing?
(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?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
"Is not designed for continuous occupancy, and has limited or restricted means for entry or exit." This statement best describes which of the following terms?
There are may different trades and occupations within Alberta. Which of the answers below correctly identifies the number of Alberta designations?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
Chart recorders have a couple of specific applications. Which application below would best describe the charting of results from a flow rate close to an orifice plate?
If, for every 10 C of charge, 40 J of energy is available, what is the voltage?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the most common of those methods?
"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?
Use the answers below to fill in the blanks of the following sentence. "The _____ of the plates in a capacitor is _______ to it's capacitance."
The symbol for a voltage drop is which of the below?
State the following number, 0.005687 using scientific notation and round the answers to 3 significant digits.
A 3 kg mass is placed on a 4 cm diameter diaphragm, what is the pressure on the air under the diaphragm?
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 "A greater amount of free electrons reside in a conductor of greater diameter per linear unit."
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a compressed air system?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the methods below would be best to run insulated impulse lines to location?
If field servicing, or removing, a control valve from a piping system it is important to recognize the piping isolations. Which of the isolations below correctly identifies the following picture?
What are the three main elements of a regulator?
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an air core is less preferable than an iron one.
The symbol for a amperes is which of the below?
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the least capacitance?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
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."?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "B"?
How many coulombs of charge pass though a given point in 1 second, if the current is 18mA
"A proportion of a whole expressed as a number between 0 and 100 rather than as a fraction."
Class 1 or 2 Safety Glasses are typically worn by most warehouse workers. Which of the following do they protect from?
There are many terms associated with "Energy". Which term below is correctly described as, "done on an object when an applied energy moves it through a distance"?
(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 larger OD tube to a smaller OD tube?
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
From the information given in the diagram below, what is the total parallel resistance of the circuit?
Of the valves below, which would be best for erosive service?
There are 3 major components to a zener intrinsically safe barrier. Which of the answers below would be best describe the component that limits the short circuit current?
There are two very common types of metric vernier calipers. If the caliper that you are using has 1mm graduations on the beam, which of the answers below represents the graduations required on the Vernier scale?
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would the process fluid need to pass through the instrument for accurate measurements?
What percentage of 35 is 21?
It is a good trade practice to transport gas cylinders secured and upright. From which act below did this practice come from?
65% of 765 is equal to?
Convert 18.5 psi into inches W.C.
The following statement is the best description of which of the terms below, "The electric dynamic that sustains the charge difference in a circuit."?
Stress affects metals in several different ways. Which of the answers below would best be described as the permanent deformation at a slow rate?
(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?
Convert 0.625 to a fraction.
A fume extracting welding gun works well with which other source of ventilation? Choose the best answer from the choices below
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
(310101c) There are a wide variety of tubing fitting types. Which of the fittings below would best be used when terminating tube connections?
"A particular material or class of materials, that is a hazardous substance in workplace air, has an upper limit on the acceptable concentrations." This statement best describes which of the following answers?
How many electrons does 134.5 x 10¹⁹ represent?
Locking out energy sources physically is a vital part of servicing valves. Which of the valves below would you use a circular lockout device on the handle?
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as equipment or circuits that are tested under fault situations?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a medical gas system?
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 at the open end of a process pipe?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would positively pressurized equipment be primary used?
"A triangle where one of its interior angles is 90 degrees." is a description of which mathematical term?
There are a number of common parts to any valve. Which of the terms below would best be described as the object supplying the opening or closing motion of the valve?
"The removal of lead sulfate crystals, which reduces the effectiveness of lead-acid, sealed AGM or flooded (wet cell-filler caps) batteries." is the best definition of which of the terms below?
The main function of a valve positioner is which of the below?
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
Alternating current is bi-directional.
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?
What is the formula that the pneumatic relays amplification or gain is expressed by?
"Either of two angles that added together produce an angle of 90°" is a description of which mathematical term?
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
For every gas law there is a corresponding equation. Which of the gas laws below is missing from the Combined Gas Law?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "ƪ" represent?
convert 56.7 psi to kPa.
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?
Calculate ⁶⁄₇ ÷ ⁴⁄₅, and state answer as a proper or mixed fraction
"Control devices that use the fluid medium that they control to obtain their energy" is a description of what?
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?"
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.
To move 100 C across two points. when the voltage is 15 V, how much energy is required?
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?
When making a span adjustment, what is the first adjustment made?
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 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
When selecting a valve for a piping system, several factors must be considered. Which of the terms below can be correctly described by the statement, "Constitutes the pressure differential generated between two defined points through various ares of loss."
When making an angularity adjustment, what is the first adjustment made?
"An electric circuit in which the electric passes through each circuit element in order." is the best description for which of the terms below?
Calculating absolute pressure is achieved by?
What type of cell is a lithium constructed battery?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve ensuring contamination free parts and soldering tip?
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 floor of the container. Of the following answers, which gas would he be testing for?
To move 50 C across two points. when the voltage is 5 V, how much energy is required?
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?