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!

There are two different ways of identifying general purpose tube. If you see "⅜ in-SS-0.036" printed on the outside of the tube, what would the "⅜" refer to?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosure needs do be reduced from a Class I, Zone 1 to a Class I, Zone 2?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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
The Alberta AIT Board has many responsibilities. Which of the answers below represents the Boards main responsibility?
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 257 °F in °C?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the flexibility of operating modes?
Which are the two major categories of pressure regulators?
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be equal to "W" as a of measurement?
"A fraction in which the numerator is greater than the denominator", is a description of which type of fraction?
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?
State the number 789342.61 using decimal notation and round the answers to three significant digits.
The trigonometric ratio of cosine is calculated with which mathematical equation?
When an atom gains an electron, it is commonly referred to as which of the below?
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be referred to as a "Van Stone" flange connection?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve affixing the work to be done to ensure it doesn't move while working on it?
State the number 0.004675 using scientific notation and round the answers to three significant digits.
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
The statement, "Whatever is done to one side of an equation, can be done to the other side of the equation" is false.
Section 315(1), (2) and (3) covering guardrails can be found in which piece of legislation below?
there are numerous pieces of rigging equipment. Which of the answers below correctly identifies the item in the picture that follows?
A mass of 5 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
If a battery has a rating of 133 Ah, theoretically it could provide 5.75 A for how long?
In a simple circuit, if E=6 V and R=5 ohms, what is the current of the circuit?
(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?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
State ⁶⁵⁄₁₄ as a mixed fraction.
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the greatest capacitance?
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."
(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?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
There are several different notations on a length of pipe. Which of the notations below would have the thinnest pipe wall?
If the total error is 1.9 and the dead band error is is 0.8, what is the hysteresis value?
Moment balance Negative feedback system consists of:
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with other toxic effects?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "2"?
In a simple circuit, if E=4 V and R=2 ohms, what is the current of the circuit?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen arc adjustment/verification be?
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?
Alloy steels are very common in industry. Which of the types of alloy steel would "Ferritic" piping be?
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 power of soldering station is used for electronic soldering?
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?
"An adjustment that, without affecting the base point, changes the shape of the curve" is the definition of which adjustment?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a loading element?
If a closed tank is pressurized to 105.345 kPa and the pressure gauge at the bottom of the tank reads 198.456 kPa, what head (in feet) of a liquid with a R.D. of 0.11 is contained in the tan
If a closed tank is pressurized to 145.345 kPa and the pressure gauge at the bottom of the tank reads 156.456 kPa, what head (in feet) of a liquid with a R.D. of 0.67 is contained in the tan
(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 tubing to piping?
Which of the following is not affected by a positioner?
Which of the welding processes below would welding goggles be worn?
Convert ¹⁰⁄₁₅ to a decimal.
"The relationship between valve position and flow in the in an operational process system.", is the best description of which term below?
(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 tube to tube?
A pneumatic level transmitter, with an output range of 20-100 kPa, is being used to assess the fluid level in a cylinder though an input range of 0-20 meters. What is the transmitter output signal if the fluid level is at 6.65 meters?
The circumference of a circle is calculated with which correct equation?
Convert the following quantities to the units asked for: 1.75 hours to minutes.
Give the absolute pressure in a vessel given a vacuum gauge reading of 5.3 inches of Hg and a local barometric reading of 43.5 inches of Hg.
What is the SI unit of force?
In the SI system, the unit for time is?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "A"?
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
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 increase in resistive load?
There are several different committees in the Alberta apprenticeship system. Which of the committees below would be directly responsible for resolving any disputes between employer and apprentice?
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a 2.5 mm minimum water gauge flow to be maintained?
There are several terms that are used to describe the features of a particular thread type. Which of the answers below would best describe the "³⁄₁₆" in the bolt designation ³⁄₁₆-12 UNF x 6?
In a simple circuit, if I= 6 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
There are several different types of carbon steel in any piping system. Which of the types below would have more than a 0.6%% carbon content?
If a closed tank is pressurized to 12 psig and the pressure gauge at the bottom of the tank reads 56 psig, what head (in meters) of a liquid with a R.D. of 0.75 is contained in the tank
"Is the measure of the amount of space inside of a solid figure, like a cube, ball, cylinder or pyramid." is the description of which mathematical term?
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.
(310105d) Displacement quantities are all a measurable amounts. Which of the answers below would "Kinetic friction" use as it's unit of measurement?
A _________ has the air connection usually under of the diaphragm.
If, for every 15 C of charge, 45 J of energy is available, what is the voltage?
Convert the following quantities to the units asked for: 27000 seconds to hours.
(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?
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?
(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?
"A triangle in which all three sides are equal." is a description of which mathematical term?
There are several different items involved in removing or installing a flanged control valve. Which of the items below provides the seal between the flanges?
"The heat absorbed by a unit mass of a given solid at its melting point that completely converts the solid to a liquid at the same temperature", is the description of which physics term?
The best description for "Span error" in relation to calibrating instruments is which of the following?
"A simple circuit for measuring an unknown resistance by connecting it so as to form a quadrilateral with three known resistances and applying a voltage between a pair of opposite corners." is the best description of which of the terms below?
When 125 C passes by a point in a wire in 8 seconds, what is the current in amperes?
The area of a circle is calculated with which correct equation?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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?
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?
Of the clothes to wear while cutting, welding or grinding, choose from the answers below the best material to have.
The CEC generates a dust grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would metallic, hazardous dust belong to?
Calculate the force in pounds which will be developed when a liquid pressure of 76 lbs/in² is applied to an area of 54 in².
Factors affecting induced voltage include:
Of the valves below, which would be best for erosive service?
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would have two tube ends offset and one pipe connector?
There are three types of radiant energy that is given off by a typical welding arc. Choose the one that does not apply from the answers below.
(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?
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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "V₁T₂=V₂T₁"?
If a closed tank is pressurized to 125.345 kPa and the pressure gauge at the bottom of the tank reads 186.456 kPa, what head (in feet) of a liquid with a R.D. of 0.05 is contained in the tan
Use the answers below to correctly fill in the blanks. "Resistance of a conductor is________ to it's ______."
Tube fittings can be put into three general categories, each with distinct components. Which of the categories below requires a flared tube end, nut and sleeve?