Advance your career with help from our practice exams

Instrumentation: FIRST PERIOD

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

Convert 0.500 to a fraction.
A parallel circuit reacts in specific ways to the to an open circuit. Which of the answers below best describes the reaction of the total line resistance to an open circuit?
The 3 key elements of the WHIMIS system are, worker education, material safety data sheets and ________. Choose from the answers below to fill in the blank.
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 current?
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
(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 installation of an electrical communication system?
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?
(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 installation of instruments in a hazardous location?
1 pound force is equal to
Of the list below, what is the standard unit of quantity of electricity in the International System of Units (SI)?
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) 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??
There are many electrical terms that have symbols to describe them in equations. Which of the terms below is best referred to as "Ꜫᵣ" in an equation?
(310102m) A capacitor's voltage decreases in a very predictable way. Which of the answers below represents the total time constant intervals required to achieve a full discharge in a typical capacitor?
"Control devices that use the fluid medium that they control to obtain their energy" is a description of what?
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
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
With a direct acting actuator, as air pressure increases:
In the WHMIS system, "Dangerously reactive material" is represented by which hazard class? Choose from the following answers.
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
(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.
(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"?
Calculate the gain when a change from 0.5 psig to 1.35 psig in nozzle backpressure and a change from 3 psig to 12 psig in the relay output occurs.
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 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?
When taping a blind that does not go through the metal, the proper steps to tap it are:
The use of process seals is required in some applications. Which one of the terms below is best described as a seal that prevents the process from passing into the electrical conduit in the event of the initial seal failure?
(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?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "3"?
The CEC generates a air grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Propane belong to?
"The distance traveled divided by the time elapsed to reach final position." is the description of which mathematical term?
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?
Use the answers below to correctly fill in the blanks. "Resistance of a conductor is________ to it's ______."
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?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosures classification must be reduced from Class I, Zone 1 to non-hazardous?
(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?
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."
Of the types of link and lever calibration methods below, which one requires only one type of adjustment?
A worker is grinding 6m away from another worker refueling a diesel welder. Is there any workplace infraction occurring in this situation? Choose the best answer below for answering this.
The prefix "Milli" can be expressed as?
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below can be best described as, "the ratio of the density of a substance to the density of water."?
CSA approved head, eye, and foot protection is required for all workers. This is best legislated by which of the following acts?
"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?
If a battery has a rating of 60 Ah, theoretically it could provide 3.3 A for how long?
State ⁴⁷⁸⁄₉₈ as a mixed fraction.
Circular chart recorders have several specific accessories. Which of the answers below would best describe the accessory that allows the additional measurement of differential and static pressures?
Convert the following quantities to the units asked for: 27000 seconds to hours.
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is the power delivered by the battery?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use capacitor plates in the creation of an output signal?
State ⁶⁵⁄₁₄ as a mixed fraction.
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would intrinsically safe equipment be primary used?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would use materials that were resistant to corrosion in it's construction?
Convert 14 "Hg to kPa(a). Barometer is 18.6 psi
If, for every 30 C of charge, 60 J of energy is available, what is the voltage?
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "when the magnetic flux alternates from the internal molecular structure reversals, the result is the heating of the core and wasted energy."
There is a safe ratio for the use of extension ladders. If there is a ladder extending 18 ft vertically, how far from the wall should the base of the ladder be?
(310104a) The valve body contains some of the vital components in a valve. Which of the components below would be responsible for the alignment for the path of travel of the valve plug?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would be to used in squaring the drive arm and link as well as the range arm?
What is the mass that is placed on a piston above a gas if the pressure exerted is 78554 Pa on a cylinder that has a 3 cm diameter
(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 be leak-proof at any temperature or pressure
If a compound were to be broken down into its simpler components, of the options below, what would it be called?
State 3 ⅞ as a mixed fraction.
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the detailing of employer obligations that must be fulfilled?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of yellow represent?
What are the three main elements of a regulator?
What pressure does a column of liquid exert with a density of 56.7 lbs per cubic foot and a height of 54 inches
The MSDS for each controlled product must be:
In the WHMIS system, "Oxidizing material" is represented by which hazard class? Choose from the following answers.
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 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?
Use the answers below to correctly fill in the blanks. "Resistance of a conductor is________ to it's ______."
Hysteresis can only be calculated.
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?
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?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
There are many different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
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?
If the total error is 1.9 and the dead band error is is 0.8, what is the hysteresis value?
65% of 765 is equal to?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "1"?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=ZnRT"?
Convert 0.625 to a fraction.
"A pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid," is a description of which principle?
If a pressure change of 20 kPa to 100 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 0.02 m².
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "joules"?
State the number 40.021 x 10⁻¹ using decimal notation and round the answers to three significant digits.
What is the name of the part of a drill bit that carries the cut material out of the hole that is being drilled?
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "Newtons"?
(310101c) There are several categories for connecting tubing. Which of the methods below is never used as a tubing connection method?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the volume of a mass of gas is inversely proportional to its pressure."?
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.
If, for every 20 C of charge, 60 J of energy is available, what is the voltage?
To move 250 C across two points. when the voltage is 20 V, how much energy is required?
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "a localized electric current induced in a conductor by a varying magnetic field."?
Determine the voltage V(ad) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of refining the grain of the steel to allow for greater resistance to corrosion and temperature extremes?
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 final velocity of the car?
"An angle of 90°" is a description of which mathematical term?
Electrostatic generation can be happen in many conditions. Which of the answers below would correctly identify one of those conditions?