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Instrumentation: FIRST PERIOD

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

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?
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as electrical/electronic circuitry that is incapable, under normal operating conditions, of causing ignition of a specified flammable gas-air, or vapor-air,mixture?
"Any quantity with both a magnitude and a direction, such as velocity." is a description of which mathematical term?
"A hollow cylindrical trim element that is sometimes used as a guide to align the movement of a valve plug with a seat ring." is the best description of which of the terms below?
There are some options when deciding to lower the classification of a hazardous atmosphere within an enclosure. Which of the methods below would be the best method for the removal of a hazardous gas?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe the letter "C" in the picture below?
The following statement is the best description of which of the terms below, "The electric dynamic that sustains the charge difference in a circuit."?
"The range through which an input can be varied in reverse without initiating an observable response" is the best description of which term?
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?
101.325 kPa is equal to?
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a barrier that conditions signals received or transmitted to a hazardous area
(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?
Convert 0.875 to a fraction.
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the enclosures inlet airflow rate be measured for purging times?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with other toxic effects?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
In a simple circuit, if E=4 V and R=1.75 ohms, what is the current of the circuit?
If, for every 10 C of charge, 40 J of energy is available, what is the voltage?
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?
Convert 0.125 to a fraction.
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 7 cm diameter filled with gas?
Determine x if 5:16=x:128.
The properties of a gas are unique to its molecular make-up. Which of the terms below would best be defined as "is the pressure required to liquefy a gas at its critical temperature."?
(310105d) Efficiency is one of the benchmarks that is used for rating machines. Which of the measurement units below is used with efficiency itself?
Isolating process lines with a physical barrier is one of the steps for safe field servicing of a control valve. Which of the blank types below would best be described a physical barrier between two flanges of sufficient diameter to fill the entire diameter of the pipe to prevent the passing of material beyond that point?
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to ignition temperatures?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
Class 1 or 2 Safety Glasses are typically worn by most warehouse workers. Which of the following do they protect from?
When 125 C passes by a point in a wire in 8 seconds, what is the current in amperes?
5 coulomb of charge require how many electrons?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the least capacitance?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 6 cm diameter filled with gas?
"Changes in temperature of a gas or object with no change in phase." is a description of which physics term?
The Alberta AIT Board has many responsibilities. Which of the answers below represents the Boards main responsibility?
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?
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below relates best to the plotting of a capacitor that is alternately charging and discharging?
Gauge pressure is?
Which of the resistors below is best described by the following statement, "A variable resistor making use of three contacts whose resistance varies with an adjustment of a sliding contact."?
(310103f)There are several methods for measuring process variables. Which of the transmitters below would use cavities filled with oil used as a dielectric in the creation of an output signal?
"An adjustment that, without affecting the base point, changes the shape of the curve" is the definition of which adjustment?
(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 cathodic protection?
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?
(310103f) Strain type gauges are commonly found in industry. Which of the gauges below is known to be non-linear?
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?
"_________ is an injury caused by freezing of the skin and underlying tissues. First your skin becomes very cold and red, then numb, hard and pale." Use the answers provided to fill in the blank.
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a loading element?
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?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
The ability of a material to concentrate magnetic lines of force within a material is called?
To move 225 C across two points. when the voltage is 45 V, how much energy is required?
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the greatest capacitance?
Convert ¹⁸⁄₅ to a decimal.
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
State the number 45.7258 x 10¹¹ using engineering notation and round the answers to three significant digits.
In the WHMIS system, the two types of labels that are the most commonly used are? Use the answers provided.
To alter the pressure setting on a regulator what element would you adjust?
An I/P transducer is a positioner.
There are subgroups of fuel for fires need to burn. Which of those subgroups would LPGs belong?
The standard unit of conductance is which of the below?
"A pneumatic relay that is used to reduce the time lag in pneumatic circuits by reproducing pneumatic signals with high-volume and or high-pressure output." is the best description of which term below?
"Can handle pressures more accurately and can handle higher pressures" are two advantages of using which regulator?
If a closed tank is pressurized to 14 psig and the pressure gauge at the bottom of the tank reads 30 psig, what head (in meters) of a liquid with a R.D. of 0.87 is contained in the tank
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
The perimeter of a Triangle is calculated with which correct equation?
If a closed tank is pressurized to 114.345 kPa and the pressure gauge at the bottom of the tank reads 165.456 kPa, what head (in feet) of a liquid with a R.D. of 0.83 is contained in the tan
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?
If side "A" is equal to 45mm and side "B" is equal to 76mm, solve for side "C".
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the creation of two equal ranges from standard range?
"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?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 100 °C?
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?
The prefix "Mega" can be expressed as?
A mass of 5 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
For every gas law there is a corresponding equation. Which of the gas laws below is missing from the Combined Gas Law?
Which of the following measurements cannot be performed by a sliding caliper?
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
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 3-15 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
"This type of respirator has two different types that are available. These are continuous flow, and pressure demand respirators. " This statement best describes which of the following respirators?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe the letter "A" in the picture below?
There are several different ways to apply force to an actuator. Which one of the methods below would a vane actuator use for operation?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for compressed gases?
A multi-wheel cutter is used when
From the information given in the diagram below, what is the total parallel resistance of the circuit?
Calculate the gain when a change from 0.85 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 18 psig in the relay output occurs.
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.
A moment balance negative feedback system is a motion balance system?
In soldering there are many terms used. Which of the terms below would best describe a poorly formed soldered joint?
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?
Magnetism has several terms that must be understood. Which of the terms below would best be defined as a measurement of the total magnetic field which passes through a given area?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "2" in the picture below?
What is the SI unit of pressure?
"If a worker is injured or has an accident on the jobsite, they must report it as soon as possible to the employer." The act that best encompasses this statement is which of the following?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "4" in the picture below?
Calculate ¾ x ⅚, and state answer as a proper or mixed fraction
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
In the fraction A/B, is A the numerator?
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"?