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Instrumentation: FIRST PERIOD

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

A 3 kg mass is placed on a 4 cm diameter diaphragm, what is the pressure on the air under the diaphragm?
From the information given in the diagram below, what is the current flowing on branch R2?
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?
A battery has a rating of 80Ah, this means it can supply
What is the term used to describe the total opposition to current flow in an AC circuit?
Moment balance Negative feedback system consists of:
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
In any intrinsically safe loop there are several main items that are vital to the loop. Which of the answers below contains those items?
Biological Hazards can be further broken down into subsections. Of the answers below, one is not a biological hazard, choose the answer that doesn't fit.
If a pressure gauge is reading 54 kPag and the local atmospheric pressure is 99 kPaa, the the absolute pressure gauge reading will be?
Which of the terms below is measured in "Joules"
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
(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?
The CEC has classified hazardous areas by a specific set of terms. Which of the answers below contains those terms in the correct order?
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?
Convert 14 "Hg to kPa(a). Barometer is 18.6 psi
State ⁶⁵⁄₁₄ as a mixed fraction.
There are several grades of iron and steel. Which of the answers below best represents a material that is extremely brittle because of it's high carbon content?
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?
Choose the answer below that has the words in order to correctly fill in the blanks. "A ______ in per unit volume temperature of a conductor, offers ______ resistance to current"
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?
Electrical conduit is used to protect the cables running to the instruments. Which of the types of conduit below would be used in a corrosive atmosphere?
The Alberta AIT Board has many responsibilities. Which of the answers below represents the Boards main responsibility?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
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?
A piece of metal with a length 13 1/4" is cut into 2 pieces. If one piece is 5 3/4' long, determine the length of the other piece.
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most common?
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
"Can handle pressures more accurately and can handle higher pressures" are two advantages of using which regulator?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the period while the capacitor gets to 5τ?
One coulomb is equal to how many electrons?
How many coulombs of charge pass though a given point in 1 second, if the current is 18mA
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "Newtons"?
With the proper formula "Work" is a measurable quantity. Which answer below represents the "displacement" part of that equation?
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be equal to "J" as a of measurement?
There are many terms that are used with precise measurements. Which of the answers below is the term used when the answer to a problem has more significant digits that the measurements that have been recorded?
"The distance around the outside edge of a two-dimensional shape." is the definition of which mathematical term?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
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?
Batteries come in two common varieties. Which of the terms below can relate best to a rechargeable cell?
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?
Reduce ³⁴⁰⁄₄₀ and state as a proper or 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 thorough, precise safety details for workers?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "μ" represent?
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?
The area of a circle is calculated with which correct equation?
A key component of removing or field servicing a control valve is the lockout device. Which of the devices below is best described as one that has no possibility for accidental removal?
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
The standard unit of resistance is which of the below?
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "ppwer" rating?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "that at the same temperature and pressure, equal volumes of all gases contain the same number of molecules."?
In the WHMIS system, "Infectious materials" is represented by which hazard class? Choose from the following answers.
There are many studies on how pressure and force affect fluids. "Horizontal runs do not increase pressure." is one of the principles of which answer below?
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?
The symbol for resistance is which of the below?
Covert 6 ¹¹⁄₁₃ to an improper fraction.
Each one of the installations of purge/pressurization has its own requirements for internal equipment. Which of the installations below would be able to use equipment rated as general purpose?
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?
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"?
From the information given in the diagram below, what is the current flowing on branch R1?
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?
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?
A pneumatic level transmitter, with an output range of 20-80 kPa, is being used to assess the fluid level in a cylinder though an input range of 0-17 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "3"?
(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 Class 1 circuits that are controlled remotely?
The properties of a gas are unique to its molecular make-up. Which of the terms below would best be defined as "the point at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied."?
There are numerous types and styles of valves in industry. Which of the actuators below best represents the following picture?
Calculate the relative density for a liquid whose density is =743.2 kg/m³.
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
In industry, electrostatic hazards are very important to understand. Which of the terms below is best described as a swift discharge of electric current between two objects with different charges and different numbers of electrons?
In a simple circuit, if I= 4 A and R=2 ohms, what is the voltage drop over the resistor of the circuit?
In the WHMIS system, "Compressed gas" is represented by which hazard class? Choose from the following answers.
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?
(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 maintenance of instruments in hazardous locations of instruments?
In the SI system, the unit of force is?
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
In soldering there are many terms used. Which of the terms below would best describe a poorly formed soldered joint?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "7" in the picture below?
What power of soldering station is used for electronic soldering?
Convert 16.5 psi into kPa
There are many studies on how pressure and force affect fluids. "Container shape does not affect fluid pressure." is one of the principles of which answer below?
Chart recorders have a couple of specific applications. Which application below would best describe the charting of results from a flow rate across an orifice plate?
(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??
State the number 0.003402 using decimal notation and round the answers to three significant digits.
Inductive reactance is the _________________ to change in current created by coil in an AC circuit.
Reduce and state answer as a proper or mixed fraction: ³⁴⁰⁄₁₆.
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?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
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 "SS" refer to?
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the greatest capacitance?
In the SI system of measurements, there are several symbols used for magnetism. Which of the measurement units below would represent "relative permeability"?
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
Having to convert between SI and USCS measurements is commonplace in industry today. Which of the answers below is the correct conversion for 45 lbf?
What is the SI unit of force?
In the fraction A/b, is A the denominator?
(310102m) The relationship between resistors, capacitors and time intervals is an interdependent one. Which of the answers below would be the voltage across a steady state capacitor after 1 tau of it discharging?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the answers below would be best used to support an in-line instrument?