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Instrumentation: FIRST PERIOD

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

"Is the rate of doing work, it is the amount of energy consumed per unit time", is the description of which mathematical term?
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."
"The characteristic published by the manufacturer, based on tests performed in a closed system ensuring consistent flow behavior before installation." is the best description of which of the following terms?
The prefix "giga" can be expressed as?
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?
(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?
Convert 45.9 kPa into psi
Heat is based on the movement of molecules. Which of the answers below correctly fills the blank in the following sentence, "Temperature is the measurement of the average _________ of the movement of molecules."
State the number 0.05634 x 10⁻¹³ using scientific notation and round the answers to three significant digits.
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?
From the information given in the diagram below, what is the voltage drop over R4, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
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?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a moment balance negative feedback system in the creation of an output signal?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a fixed restrictor as well as a feedback bellows in the creation of an output pressure signal?
In the SI system of measurements, there are several symbols used for magnetism. Which of the measurement units below would represent "relative permeability"?
(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 tubing around a tight corner?
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 145 °C to °F?
Electrostatic generation can be happen in many conditions. Which of the answers below would correctly identify one of those conditions?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the answers below would be best describe a major difference between metal conduit and cable tray?
Calculate ¾ x ⅚, and state answer as a proper or mixed fraction
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
Use the answers below to correctly fill in the blanks. "Resistance of a conductor is________ to it's ______."
Convert 0.500 to a fraction.
In the SI system, the unit of force is?
Interpretation and use of correct installation standards is vital to the success of an instrument technician. Which of the associations below have set out the standards that must be followed?
"The longest side of a right triangle, opposite the right angle." is a definition of which right angle triangle mathematical term?
A mass of 7 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
The types of tube available in industry are somewhat application specific. Which of the tube types would be best suited for a corrosive process?
"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?
Calculate the mass of a substance that has a density of 1479 kg/m³ and occupies a volume of 0.00631 m³
There are several grades of iron and steel. Which of the answers below best represents a material that is best suited for castings because of it's superior flow characteristics when melted?
What is the basic unit of matter?
There are several types of soldering irons that are available in industry. Which type of soldering iron below would be used for speedy repairs where electrical power is restricted or unavailable?
In a baffle-nozzle-restrictor motion detector the:
Of the types of link and lever calibration methods below, which one requires a minimum of two types of adjustments?
Calculate the normal force exerted by an object that has a mass of 5.7 kg.
Of the terms below, what is "Power" measured in?
Of the list below, what is the standard unit of quantity of electricity in the International System of Units (SI)?
Which type of actuators are widely used where a large amount of mechanical travel is necessary?
65% of 765 is equal to?
If there was a need to provide a regulated output pressure with no distrubances from varying inlet and downstream pressures, which of the devices below would be used?
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 two different classification of magnets. Which of the items below would be considered a permanent magnet?
If the total error is 1.7 and the dead band error is is 0.5, what is the hysteresis value?
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the least capacitance?
There are several varieties of manufactured resistors. Which of the answers below is constructed with a glass core?
With a reverse acting actuator, as the pressure increases:
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"?
If a closed tank is pressurized to 17 psig and the pressure gauge at the bottom of the tank reads 34 psig, what head (in meters) of a liquid with a R.D. of 0.23 is contained in the tank
There are several different ways to apply force to an actuator. Which one of the methods below would use a piston for operation?
State the number 479.3 using engineering notation and round the answers to three significant digits.
Which of these pressure to force converters has two diaphragms soldered together?
Determine the volume of a tank in meters cubed, with the dimensions of 2.56 m, by 4.36 m, by 1.30 m
The 3 key elements of the WHIMIS system are, material safety data sheets, labels and ________. Choose from the answers below to fill in the blank.
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of green represent?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "B"?
There are two different ways of identifying general purpose tube. If you see "4 mm-SS-1.452" printed on the outside of the tube, what would the
(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?
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
Inductive reactance is the _________________ to change in current created by coil in an AC circuit.
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?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate gravitational potential energy?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a loading element?
If, for every 15 C of charge, 45 J of energy is available, what is the voltage?
Of the terms below, what is "Work" measured in?
The best description for "Span error" in relation to calibrating instruments is which of the following?
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."
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?
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would a thread-o-let welded to the process line be considered?
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?
How is the term "Cv" calculated?
All objects have mass which is affected by gravity. Which of the answers below represents the USCS approximate value for acceleration due to gravity?
In the fraction A/b, is A the denominator?
Lenz Law states:
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 212 °F?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "L" represent?
How many coulombs of charge pass though a given point in 1 second, if the current is 16mA
"5 x 7=7 x 5" is an example of which mathematical law?
There are two different ways of identifying general purpose tube. If you see "4 mm-SS-1.452" printed on the outside of the tube, what would the "4 mm" refer to?
"A proportion of a whole expressed as a number between 0 and 100 rather than as a fraction."
State the number 7.428 using scientific notation and round the answers to three significant digits.
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?
The prefix "Centi" can be expressed as?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "N" represent?
An instrument technician sometimes has to do calibrations while the process is still running. Which of the terms below identifies a calibration done on a live process?
The equation to compute mechanical advantage is which one of the below?
In a simple circuit, if I= 2 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
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?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of yellow represent?
(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 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?
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?
Solve for the hypotenuse.
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a low purge gas pressure audible alarm only?
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 decrease?
(310103d) There are several different designs of regulator. Which of the elements below are you affecting when you adjust spring compression?
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.
The volume of a rectangle is calculated with which correct equation?
What are the three areas of WHMIS?
The ratio 3.4:2.5 equal to?