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Instrumentation: FIRST PERIOD

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

If a pressure change of 20 kPa to 80 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 2.7 cm and the effective area of the diaphragm is 0.08 m^2
Of the adjustments below, which is the most common adjustment made?
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Work" use as it's unit of measurement?
"Having only magnitude, not direction, such as distance", is a description of which mathematical term?
There are several advantages and limitations to installing a zener barrier as an intrinsically safe barrier. Which one of the answers below can be considered an advantage of this style of barrier?
The volume of a cylinder is calculated with which correct equation?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Ethylene belong to?
There are several broad categories of tubing applications. Which of the categories below would steel tube be most commonly used for?
Occupational exposure limits have threshold limits. There are three of these threshold limits that are used, of the answers provided, which is not a value used?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "1" in the picture below?
All pipe in a piping system can be grouped into two categories. Which of the answers below best represents those categories?
Synthetic slings can be selected for a task specific application. Which of the sling property below would allow a nylon sling to be used in an explosive atmosphere?
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an iron core is more preferable than an air one.
(310105i) Any solid has inherent properties associated with it. which of the tests below refers to the application of force to a material and measures the specimen's response to the stress.
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the most common of those methods?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
The prefix "Milli" can be expressed as?
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "a localized electric current induced in a conductor by a varying magnetic field."?
Which pilot valve has two common supply connections, and two connections for output?
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
(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 signal circuits that are considered Class 2?
"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?
What size of resistor must be connected in series with a 10k potentiometer to get an output of 7V to 20V if the supply of the circuit is 20V?
(310105d) The amount of power an applied force uses is a measurable quantity. Which of the units below would be equal to 1 hp of power?
Which of these pressure to force converters has two diaphragms soldered together?
There are 3 major components to a zener intrinsically safe barrier. Which of the answers below would be best describe the component that limits the voltage delivered to the field device?
The trigonometric ratio of cosine is calculated with which mathematical equation?
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?
Piping material that is non-ferrous is most common in lower temperature services. Which of the answers below would best be classified as a "non-ferrous" material?
(310105d) For displacement to occur, several forces must act upon a mass. Which of the forces below would oppose the direction an applied force?
"The production of an electromotive force in one circuit by a change in current in a separate circuit." is the best description of which of the terms below?
(310104a) There are only two major parts to a sliding stem control valve assembly. Which of the components below would best be described as a device that regulates flow with differential pressure??
A capacitor discharges it's voltage at a specific rate. How many tau are required for a capacitor to expend 99% of it's original voltage?
In relation to hacksaws, "pitch" is referred to as?
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is the power absorbed by R3?
Convert 18.5 psi into inches W.C.
Which of the terms below is measured in "Joules"
A lithium cell can produce about _____ times the voltage of an alkaline cell.
(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?
A mass of 6 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
There are 3 major components to a zener intrinsically safe barrier. Which of the answers below would be best describe the component that limits the short circuit current?
"An adjustment that shifts the entire scale the same amount up or down" is the definition of which adjustment?
"Changes in temperature of a gas or object with no change in phase." is a description of which physics term?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
Which organization sets standards for boots and safety glasses in Canada?
The best description for "Zero adjustment" in relation to calibrating instruments is which of the following?
There are subgroups of fuel for fires need to burn. Which of those subgroups would LPGs belong?
Before working on a task, you notice that a trench with vertical rebar ends is directly under the work location. Harnesses and anchor points are provided at the task location by the employer, which you are instructed to use. The piece of legislation that best covers the action of the employer is which of the below?
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?
(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 standard set for workers?
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 "0.036" refer to?
What is the name of the tool used to cut internal threads after drilling a hole?
"5 x 7=7 x 5" is an example of which mathematical law?
Which type of actuators are widely used where a large amount of mechanical travel is necessary?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of red represent?
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
CSA approved head, eye, and foot protection is required for all workers. This is best legislated by which of the following acts?
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?
Convert 0.500 to a fraction.
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Power" use as it's unit of measurement?
In the SI system of measurements, there are several symbols used for magnetism. Which of the measurement units below would represent "relative permeability"?
Hysteresis can only be calculated.
If a battery has a rating of 133 Ah, theoretically it could provide 5.75 A for how long?
A control valve is to have a stem travel of 5.6 cm. The diaphragm in use has an area of 0.09m². What strength of spring must be used if the desired pressure change from from 40 kPa to 110 kPa will fully stroke the valve?
There are some troubleshooting issues that can arise while soldering. Which of the issues below would be best described as a heat transfer loss from the soldering tip?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the period when the capacitor gets to 5τ?
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?
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "A" represent?
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?
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 current to an open circuit?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
There are many terms that are used with precise measurements. In the measurement 65.34 cm +/- 0.7 cm, which of the terms below is represented by the "+/- 0.7 cm"
This valve is primarily used in slurry service and is not over 8 inch in general
Bourdon measuring elements have tubes that are classified into three broad categories. which of the tube types below would be the most sensitive to pressure changes?
(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?
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate area?
Heat is based on the movement of molecules. Which of the answers below correctly fills the blank in the following sentence, "Temperature is the measurement of the average _________ of the movement of molecules."
Section 315(1), (2) and (3) covering guardrails can be found in which piece of legislation below?
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 power source is 24V and the resistance is 8Ω what is the current of the circuit?
Solve for the hypotenuse.
To move 100 C across two points. when the voltage is 15 V, how much energy is required?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
Unless otherwise stated by the manufacturer, there are several general practices when installing a chart recorder. Which of the answers below correctly identifies the maximum distance between DPU and recorder?
(310104b) There are many different valves to be used for different processes. Which of the valve types below would be considered self-cleaning?
The desiccant head adsorbes water vapour due to which?
Having to convert between SI and USCS measurements is commonplace in industry today. Which of the answers below is the correct conversion for 65 lbm?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the least common of those methods?
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?
When servicing or troubleshooting a valve there are several terms that are used for specific actions. Which of terms below would be associated with the verification an individual isolation?
If a pressure change of 20 kPa to 60 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 7.5 cm and the effective area of the diaphragm is 0.09 m^2
There are some terms that are associated with capacitors. Which of the terms below is defined as the permittivity of a given material relative to that of the permittivity of a vacuum.
Gauge pressure is calculated by?
Ozone, carbon monoxide, hydrogen chloride and phosgene are all gases that can be created by different types of welding. Of the answers below, choose the best one that they all have in common.
There are several types of soldering irons that are available in industry. Which type of iron below would rely on a voltage being produced when the tip touches the work to be done?
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 is usually referred to when loading an ammeter?
What are the three main elements of a regulator?