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Instrumentation: FIRST PERIOD

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

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?
A volume booster is not a positioner.
"A fraction in which the numerator is greater than the denominator", is a description of which type of fraction?
A fume extracting welding gun works well with which other source of ventilation? Choose the best answer from the choices below
Some enclosures have removable coverings to allow maintenance work. Which of the enclosures below would have a square cover?
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?
Batteries come in two common varieties. Which of the terms below can relate best to a rechargeable cell?
(310101c) For higher working pressures, generally the wall thickness of tubing will increase. Which of the answers below would best relate to the effect of a tube's increased wall thickness?
The equation to compute mechanical advantage is which one of the below?
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
Convert ¹⁸⁄₅ to a decimal.
There are many electrical terms that have symbols to describe them in equations. Which of the terms below is best referred to as "Ꜫᵣ" in an equation?
A car traveling west has an initial speed of zero, and accelerates at a rate of 4 m/s² for 6 seconds. What is the final velocity of the car?
There are several different ways to apply force to an actuator. Which one of the methods below would a vane actuator use for operation?
With the proper formula, "Work" is a measurable quantity. Which answer below represents the "work" part of that equation?
Of the answers below, which one is a disadvantage of a Pinch valve?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
Which of the following measurements cannot be performed by a sliding caliper?
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
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?
"Is the rate of doing work, it is the amount of energy consumed per unit time", is the description of which mathematical term?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=ZnRT"?
Calculating absolute pressure is achieved by?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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?
A key component of removing or field servicing a control valve is the lockout device. Which of the devices below is best described as one that has no possibility for accidental removal?
In the SI system, the unit used for mass is?
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?
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be best suited to a valve that would be connected to a flange that was one-holed?
(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?
(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?
In the fraction A/B, is A the numerator?
(310103f) Strain type gauges are commonly found in industry. Which of the gauges below is known to be non-linear?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the most common of those methods?
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 several different types of carbon steel in any piping system. Which of the types below would have less than a 0.3% carbon content?
How many electrons does 134.5 x 10¹⁹ represent?
The ability of a material to concentrate magnetic lines of force within a material is called?
"A hazard within the workplace that can harm the body without necessarily touching it. Vibration and noise are examples of this type of hazards." This statement best describes which of the following hazard groups?
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?
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 0-9 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
1 mechanical, or imperial, horsepower is equal to which of the below?
The trigonometric ratio of tangent is calculated with which mathematical equation?
(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?
There are several common precision measurement tools available in industry. Which of the answers below best represents the tool pictured below?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
Determine the voltage V(bd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
There are several terms that are used specifically with flammable gases and liquids. Which of the terms below is best described as the minimum or maximum concentration levels of a flammable or combustible material for ignition?
There are several different types of scribers used in industry. Which of the scribers below best represents the following picture?
Gauge pressure is?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
Which of the following is not affected by a positioner?
Newton's first law is also known as?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "5" in the picture below?
What is the smallest charged particle?
A 3 kg mass is placed on a 4 cm diameter diaphragm, what is the pressure on the air under the diaphragm?
"The distance traveled divided by the time elapsed to reach final position." is the description of which mathematical term?
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?
Covert 6 ¹¹⁄₁₃ to an improper 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 the maintenance of instruments in hazardous locations of instruments?
Which are the two major categories of pressure regulators?
In the WHMIS system, "Acute poisons" is represented by which hazard class? Choose from the following answers.
What does the term "Cv" represent in calculating pressure drop?
Of the types of link and lever calibration methods below, which one requires a minimum of two types of adjustments?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
(310105d) Heat is produced when friction occurs during motion. Which of the terms below correctly identifies the type of friction that produces of this heat?
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
The best description for "Span error" in relation to calibrating instruments is which of the following?
A mass of 6 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
Convert 45.9 kPa into psi
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.
A car traveling west has an initial speed of zero, and accelerates at a rate of 4 m/s² for 6 seconds. What is the average velocity of the car?
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?
A magnetic field is set up between the the two poles of a magnet. Which of the answers below would the represent the flow direction inside the magnet?
The prefix "Milli" can be expressed as?
When higher operating pressures are used, this type of actuator produces higher thrust than diaphragm actuators.
A true force balance negative feedback system is a force balance system?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type DWV tube type typically have?
"An electrical circuit that allows a current to travel along an unintended path with no or a very low electrical impedance." is the best description of which of the terms below?
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"
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?
Calculate the gain when a change from 1.25 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 15 psig in the relay output occurs.
There are subgroups of fuel for fires need to burn. Which of those subgroups would sulfur belong to?
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=8 V and R=3 ohms, what is the current of the circuit?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would use materials that were resistant to corrosion in it's construction?
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.
Gasses react to the increase or decrease of pressure in measurable ways. Which of the terms below describes the reaction of an enclosed gas to a pressure increase?
What is the density of water?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a restricting element?
From the information given in the diagram below, what is the total resistance if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a binder?
A moment balance negative feedback system is a force balance system?
"The tube straightening out is a direct result of the pressure acting inside the tube" is the principle of operation of which pressure to force converter?
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?
"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 making an angularity adjustment, what is the first adjustment made?
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.