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Instrumentation: FIRST PERIOD

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

"Hydrostatic" pressure is sometimes referred to as
True force balance negative feedback system consists of:
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?
Which of the terms below is the best definition by the statement, "An electric current in which the flow reverses consistently."?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
A volume booster is not a positioner.
A 2000 kg train is traveling east with a speed of 25 km/h. Determine the mass of a truck travelling at 15 km/h would have to have to be travelling at the same momentum.
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
There are many different applications for copper tube. Which of those applications below would have the greatest internal operating pressure ratings?
In soldering there are many terms used. Which of the terms below would best describe a poorly formed soldered joint?
There are several different types of carbon steel in any piping system. Which of the types below would have a 0.3-0.6% carbon content?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
OH&S recognizes that there are a number of hazards on any jobsite. Which of the answers below best represents the number of broad categories that it has grouped those hazards into?
"An angle that measures less than ninety degrees but more than zero degrees" is a description of which mathematical term?
Covert 6 ¹¹⁄₁₃ to an improper fraction.
(310104b)There are many different valves to be used for different processes. Which of the valves below would best be used in a high pressure process?
To move 250 C across two points. when the voltage is 20 V, how much energy is required?
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?
"The quantity of motion of a moving body, measured as a product of its mass and velocity," is the description of which mathematical term?
In a simple circuit, if E=4 V and R=2 ohms, what is the current of the circuit?
"An electrical circuit that allows a current to travel along an unintended path with no or a very low electrical impedance." is the best description of which of the terms below?
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?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below is best defined as "The only method that avoids the propagation of combustion to the surrounding atmosphere by allowing the explosion to occur, but confining it to a well-defined area."?
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
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 CEC generates a hazardous area result by investigating the contents of the area. Which of the designations below is based on an explosive atmospheres duration and frequency of occurrence?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
If heat is added to a metal, does it expand?
A magnetic field is set up between the the two poles of a magnet. Which of the answers below would the represent the flow direction inside the magnet?
Purging is an effective means of reducing the potential hazards of an enclosure. Which of the answers below best describes the type of pressure produced in the enclosure by purging?
Isolate for "v" in the following equation: d=vt
What pressure does a column of liquid exert with a density of 48.9 lbs per cubic foot and a height of 6.5 feet
Copper tube is commonly available in two types of tempers. Which of the answers below best describes a tube that is referred to as "hard or rigid"?
What are all the variables that can be measured when dealing with gases?
Which pressure to force converter is typically used in dial indicating pressure gauges?
If a battery has a rating of 133 Ah, theoretically it could provide 5.75 A for how long?
(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 grounding of transformer circuits for instruments?
"Any point on a circuit where two or more current flows meet or are split." is the best description of which of the terms below?
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is Amperes of the circuit?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used with a pressurized enclosure that contains equipment which is capable of ignition?
"pressure developed by a column of liquid" is the definition of which term
The prefix "Mega" can be expressed as?
Which of the terms below is best described by the statement, "Current flows from the positive terminal to the negative"?
Calculate the relative density for a fluid that has a density of 748 kg/m³
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "7" in the picture below?
A tank contains a liquid that has a R.D. = 1.15. The depth of the liquid is 6.7 meters. What is the pressure in kPa at the base of the tank?
Ohm's law states that:
(310103f) Strain type gauges are commonly found in industry. Which of the gauges below is known to be non-linear?
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
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.
"To cause the valve to open, an increase in pressure to the actuator is required" is the definition of?
(310104b) Some valves require specialized components. Which of the components below would best be used to eliminate "end play".
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 is the term used to describe the total opposition to current flow in an AC circuit?
What does the term "Cv" represent in calculating pressure drop?
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 10, but less than 1000 hours a year?
CSA approved head, eye, and foot protection is required for all workers. This is best legislated by which of the following acts?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
Which are the two major categories of pressure regulators?
(310104a) There are numerous components to a valve. Which of the components below would best be referred to as a gland that seals the dynamic portion of the valve against leakage?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the Imperial absolute temperature scale?
In Unified National nomenclature what does the "1/2" represent in this bolt class- 1/2-12-UNC 3A
"An angle of 90°" is a description of which mathematical term?
To keep your back healthy, there are several steps in lifting objects. Of the following, choose the one that would not apply.
Calculate the mass of a substance that has a density of 1479 kg/m³ and occupies a volume of 0.00631 m³
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.
Copper tube is commonly available in two types of tempers. Which of the answers below best describes a tube that is slowly heated and cooled providing a soft flexible result?
there are numerous pieces of rigging equipment. Which of the answers below correctly identifies the item in the picture that follows?
From the information given in the diagram below, what is the current flowing on branch R3?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
There are may different trades and occupations within Alberta. Which of the answers below correctly identifies the number of Alberta designations?
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
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
In the fraction A/B, is A the numerator?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the current of the circuit?
Materials with one to three electrons in their valence shell are considered what?
To perform an "Angularity" adjustment, the order of step(s) is/are?
What pressure does a column of liquid exert with a density of 56.7 lbs per cubic foot and a height of 54 inches
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "ƪ" represent?
What is the SI unit of pressure?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 6 cm diameter filled with gas?
If, for every 30 C of charge, 60 J of energy is available, what is the voltage?
A parallel circuit reacts in specific ways to the addition of a resistive load. Which of the answers below best describes the reaction to an decrease in resistive load?
There are several vital components to a static pressure mechanism in a chart recorder. Which of the components below would be used as a span adjust?
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?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
A moment balance negative feedback system is a motion balance system?
Convert 0.625 to a fraction.
Convert 0.500 to a fraction.
With the proper formula, "Work" is a measurable quantity. Which answer below represents the "force that is applied" part of that equation?
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?
The standard unit of conductance is which of the below?
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 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?
What is the gain if nozzle backpressure changes from 1.35 psig up to 2.5 psig, and the relay output changes from 4 psig to 17 psig?
"Any quantity with both a magnitude and a direction, such as velocity." is a description of which mathematical term?
(310104b) Valve disassembling is a fundamental part of the Instrumentation trade. Which of the hazards below would be of primary importance to eliminate when disassembling a sliding stem actuator?
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described as a measure of how much matter is in an object?
There are several different types of scribers used in industry. Which of the scribers below best represents the following picture?