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Instrumentation: FIRST PERIOD

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

Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a low purge gas pressure visual indicator only?
(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?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 75 MPag??
"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?
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"
State the number 0.004675 using scientific notation and round the answers to three significant digits.
(310104a)There are numerous components to a valve. Which of the components below would best be referred to as a seal for the static portion of the valve against leakage?
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
Gauge pressure is calculated by?
If a closed tank is pressurized to 30 psig and the pressure gauge at the bottom of the tank reads 45 psig, what head (in meters) of a liquid with a R.D. of 0.45 is contained in the tank?
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the outlet airflow rate be measured for purging times?
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 "4 mm" refer to?
Lifting a load with rigging is an involved and potentially dangerous task. When working with slings, which of the angles below is the commonly used safe lifting angle?
Class I, Zone 1 locations can use i, ia and ib intrinsically safe equipment. Which of the answers below correctly identifies the number of faults that the "i" equipment can withstand?
The MSDS for each controlled product must be:
Which of the terms below is the best definition by the statement, "An electric current in which the flow reverses consistently."?
True force balance negative feedback system consists of:
Gauge pressure is?
(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?
Of the adjustments below, which is the most common adjustment made?
What is the name of the part of a drill bit that gets fitted into the drill spindle?
What is the gain if nozzle backpressure changes from 1.35 psig up to 2.5 psig, and the relay output changes from 4 psig to 17 psig?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "3" in the picture below?
The two main functions of a negative feedback system are:
What are the two types of magnet?
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would capillary or impulse line to the instrument be used?
The law of electrical charges states that unlike charges attract one another and like charges repel one another.
Which type of actuators are widely used where a large amount of mechanical travel is necessary?
If a battery has a rating of 133 Ah, theoretically it could provide 5.75 A for how long?
How is the term "Cv" calculated?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would prevent overshoot of the Zero?
Explosion-proof equipment has several components that make it effective. Which of the components below is a requirement for equipment to be considered explosion-proof?
Although there are numerous type of batteries, they all share a common construction. Which of the answers below contains all the required parts of a battery?
(310101c) There are several categories for connecting tubing. Which of the methods below is never used as a tubing connection method?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
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 as having a blind and a spacer together in one assembly?
Express ³²⁄₄₄ as a percent.
Class 1 or 2 Safety Glasses are typically worn by most warehouse workers. Which of the following do they protect from?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a pressure sensing diaphragm in the creation of an output signal?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
There are several types of measuring elements used in industry. Which of the answers below best represents the letter "C"?
If a closed tank is pressurized to 20 psig and the pressure gauge at the bottom of the tank reads 25 psig, what head (in meters) of a liquid with a R.D. of 0.65 is contained in the tank
Of the methods to render a container safe for hotwork, which of the following is the most common and most effective?
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most common?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen pressure adjustment/verification be?
There are several different ways to apply force to an actuator. Which one of the methods below would a scotch yoke actuator use for operation?
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?
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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
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?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
Covert 6 ¹¹⁄₁₃ to an improper fraction.
"A valve that has a low pressure drop at high flow rates.", is the best description of which of the terms below?
Convert ⅘ to a decimal.
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?
(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?
Determine the voltage V(bc) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "2" in the picture below?
"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?
In the WHMIS system, "Corrosive materials" is represented by which hazard class? Choose from the following answers.
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?
What does the term "Cv" represent in calculating pressure drop?
All pipe in a piping system can be grouped into two categories. Which of the answers below best represents those categories?
The volume of a sphere is calculated with which correct equation?
A "wheel and axle" is an example of which type of machine?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, isolating all sources of energy to the work area would be which of the steps below?
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?
(310103d) There are several different designs of regulator. Which of the elements below are you affecting when you adjust spring compression?
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate mass?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
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?
In the SI system, the unit used for mass is?
The ISA has defined 3 types of installations for purge/pressurization for hazardous applications. Which of the types below would an enclosures classification be reduced from Class I, Zone 1 to non-hazardous?
Hysteresis can only be calculated.
When an atom gains an electron, it is commonly referred to as which of the below?
The standard unit of conductance is which of the below?
What type of fire extinguisher can have a large tapered nozzle?
"Can handle pressures more accurately and can handle higher pressures" are two advantages of using which regulator?
State the number 0.00007342 using engineering notation and round the answers to three significant digits.
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 several different committees in the Alberta apprenticeship system. Which of the committees below would be directly responsible for determining the equivalency of training done outside Alberta?
(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 grounding of less that 50V circuits?
If a pressure change of 20 kPa to 100 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 3.5 cm and the effective area of the diaphragm is 0.05 m^2
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."
If angle "Y" is equal to 28 degrees, solve for angle "X"
There are many terms associated with "Energy". Which term below is correctly described as, "is energy stored in a spring."?
The statement, "Whatever is done to one side of an equation, can be done to the other side of the equation" is false.
From the information given in the diagram below, what is the current flowing on branch R3?
What are the 2 major parts of a control valve?
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?
"The distance traveled divided by the time elapsed to reach final position." is the description of which mathematical term?
746 Watts is equal to which of the terms below?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "B"?
What is the name of the tool that is used on round stock to cut external threads?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "A"?
Factors affecting induced voltage include:
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the Imperial absolute temperature scale?