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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 terms below would best describe a thread with a 16 TPI?
Of the answers below, which one is a disadvantage of a Pinch valve?
(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 through the side wall of an enclosure?
(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?
All safety enclosures are tested in the factory to certify the maximum pressure released in an explosion that it can withstand. Which of the answers below would describe the testing required for a flame-proof enclosure?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the minimum safety standards set for employers?
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?
(310104b) Some valves require specialized components. Which of the components below would best be used to eliminate "end play".
All objects have mass which is affected by gravity. Which of the answers below represents the USCS approximate value for acceleration due to gravity?
The result of a _______ actuator is installed with a ________ valve will be normally closed, fail open
"An element or device which receives information in the form of 4-20 mA and coverts it to information in the form of 3-15 psig." is the best description of which of the terms below?
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a compressed air system?
If it were necessary to operate an 50-300 kPa valve actuator, but you had a 20-80 kPa control signal, the relay used would be?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous biohazardous material?
To alter the pressure setting on a regulator what element would you adjust?
From the information given in the diagram below, what is the total current if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
(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 3 tubes together?
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"?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of red represent?
Alloy steels are very common in industry. Which of the types of alloy steel would "Ferritic" piping be?
In industry, electrostatic hazards are very important to understand. Which of the terms below can correctly be described as a charge created when two objects that are not good electrical conductors are rubbed together, and electrons from one of the objects rub off onto the other?
To keep your back healthy, there are several steps in lifting objects. Of the following, choose the one that would not apply.
The result of a _______ actuator is installed with a ________ valve will be normally open, fail closed
"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?
In the SI system, the unit used for mass is?
Covert 6 ¹¹⁄₁₃ to an improper fraction.
To move 75 C across two points. when the voltage is 10 V, how much energy is required?
An I/P transducer is a positioner.
The result of a _______ actuator is installed with a ________ valve will be air-to-open
From the information given in the diagram below, what is the voltage drop over R2, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
"A quantity, such as mass, length, or speed, that is completely specified by its magnitude and has no direction." is a description of which mathematical term?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, testing of the isolation to all sources of energy to the work area, would be which of the steps below?
"A flow characteristic that provides maximum change in flow rate at initial valve stroke opening." is the best description of which of the terms below?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed medical air system?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with other toxic effects?
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
The types of tube available in industry are somewhat application specific. Which of the tube types would be best suited for a corrosive process?
Before entering a confined space for the first time or re-entering after a break, it is a good practice to do which of the following?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
Convert ⁸⁄₁₉ to a decimal.
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
(310104d) There are several features available on valve positioners in industry today. Which of the features below can be best described as one that uses negative feedback in it's operation?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate gravitational potential energy?
(310102m) A capacitor's voltage increases in a very predictable way. Which of the answers below represents the total time constant intervals required to achieve a full charge in a typical capacitor?
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "joules"?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
This valve is primarily used in slurry service and is not over 8 inch in general
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
The main function of a valve positioner is which of the below?
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?
(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?
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 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?
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 257 °F in °C?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
(310102g) Energy is lost due to undesirable resistance in any circuit. Which of the terms below refers to the power that is lost in a conductor during the transmission phase?
Which type of pilot valve has one supply connection and two output connections?
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."?
Tubing has many distinctive applications in industry. Which of the associations below provides the standards commonly used for tubing in instrumentation?
What is the purpose of the PTC switch in a lithium battery?
If, for every 20 C of charge, 60 J of energy is available, what is the voltage?
The equation to compute mechanical advantage is which one of the below?
There are subgroups of fuel for fires need to burn. Which of those subgroups would LPGs belong?
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as the degree to which the result of a measurement that conforms to the required standard.
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of improving the resistance to metal fatigue and facturing?
(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 4 tubes together?
To alter the pressure setting of a regulator, you would adjust what?
In fluid mechanics, there is always a loss in pressure due to several factors. Which of the factors below would most affect this loss in pressure?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "2"?
Determine the voltage V(bd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop at R1?
(310104a) There are only two major parts to a sliding stem control valve assembly. Which of the components below would best be described a a device that produces linear motion from a source of power to control the flow of .energy of a process?
(310105i) Any solid has inherent properties associated with it. Which of the properties below would be referred to as the ability to accept or resist an external force trying to deform it?
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the least capacitance?
Convert ¹⁰⁄₁₅ to a decimal.
Of the terms below, what is "Power" measured in?
Circular chart recorders have several specific accessories. Which of the accessories below would use an ambient compensation capillary?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
Which of the electrical terms below can be best described as one that "internally converts stored chemical energy into electrical potential 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 conductor type and use?
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
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
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?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an air core is less preferable than an iron one.
Which pressure to force converter is typically used in dial indicating pressure gauges?
The statement, "Whatever is done to one side of an equation, can be done to the other side of the equation" is false.
(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?
Solve for the missing side.
A true force balance negative feedback system is a force balance system?
Reduce ⁹⁄₁₄ and state as a proper or mixed fraction.
From the information given in the diagram below, what is the current flowing on branch R2?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "C"?
The ability of a material to concentrate magnetic lines of force within a material is called?
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?
What pressure does a column of liquid exert with a density of 56.7 lbs per cubic foot and a height of 54 inches