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Instrumentation: FIRST PERIOD

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

There are several different notations on a length of pipe. Which of the notations below would have the thinnest pipe wall?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
Which of the following is not affected by a positioner?
Which type of valve is pictured below?
(310101c) There are a wide variety of tubing fitting types. Which of the fittings below would best be used when terminating tube connections?
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.
With a reverse acting actuator, as the pressure increases:
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "μ" represent?
In the SI system, the unit for length is?
When 20 C passes by a point in a wire in 12 seconds, what is the current in amperes?
convert 4 ⁴⁄₁₁ to an improper fraction.
(310105i) Any solid has inherent properties associated with it. Which of the terms below would best represent the final amount of stretch or elongation that the material undergoes during tensile testing?
Which type of actuators are widely used where a large amount of mechanical travel is necessary?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "C"?
In Unified National nomenclature what does the "12" represent in this bolt class- 1/2-12-UNC 2B
"The results of a devices inelastic quality" is a definition of which term?
Alloy steels are very common in industry. Which of the types of alloy steel would "Austenitic" piping be?
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?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would generally not be used to protect current electronic instrumentation?
WHIMIS was put in place to regulate controlled products in the workplace. Which of the federal regulatory bodies below would oversee the suppliers of these products?
Of the clothes to wear while cutting, welding or grinding, choose from the answers below the best material to have.
There are several different types of drills tools used in industry. Which of the drills below would be best used for exacting work, hole no bigger than a ½" in diameter?
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?
From the information given in the diagram below, what is the current flowing on branch R3?
746 Watts is equal to which of the terms below?
"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?
What percentage of 35 is 21?
The prefix "Milli" can be expressed as?
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"
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a restricting element?
What is the main purpose of valve positioners?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
When a pressure of 15 psi is applied to a diaphragm actuator with a diameter of 18 cm, what is the force in Newtons (N) that is created?
(310105d) When dealing with displacement, there are two qualifiers used. Which of the answers below would be a quantity that is fully described by a numerical value alone?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a refrigeration system?
(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?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be moderately sensitive to pressure changes?
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?
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 "ib" equipment can withstand?
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?
1 mechanical, or imperial, horsepower is equal to which of the below?
Isolate for "v" in the following equation: d=vt
State this fraction as a mixed fraction: ⁵⁵⁄₈.
With a direct acting actuator, as air pressure increases:
"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?
If the total error is 1.7 and the dead band error is is 0.5, what is the hysteresis value?
A welder has set up a temporary fab area in a c-can. He has put 2 portable fans, one in the front and one in the back, in the c-can for ventilation. Based on the information provided, which type of ventilation is he using? Use the terms provided to choose the best answer.
If the total error is 1.9 and the dead band error is is 0.8, what is the hysteresis value?
There are several advantages and limitations to installing a galvanically isolated barrier as an intrinsically safe barrier. Which one of the answers below can be considered an advantage of this style of barrier?
Which term can be defined as the pressure at any point in an atmosphere due solely to the weight of atmospheric gases above the point concerned
From the information given in the diagram below, what is the current flowing on branch R2?
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"?
Materials with four electrons in their valence shell are considered what?
"The displacement divided by the total time to complete the change." is the description of which mathematical term?
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?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
(310104d) Control valves have a number of accessories that they can use for a variety of applications. Which of the answers below would be best reflect the common accessory for valve plug placement accuracy?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would intrinsically safe equipment be primary used?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "4"?
Using the Pythagorean Theorem solves for which mathematical term?
Before entering a container to work, your Journeyman asks for a gas test to be done. The foreman agrees and puts the sniffer close to the roof of the container. Of the following answers, which gas would he be testing for?
Each one of the installations of purge/pressurization has its own requirements for internal equipment. Which of the installations below would be able to use equipment rated as general purpose?
Section 315(1), (2) and (3) covering guardrails can be found in which piece of legislation below?
What type of flux is generally used the most in electronic soldering?
Reduce ³⁴⁰⁄₄₀ and state as a proper or mixed fraction.
To move 75 C across two points. when the voltage is 10 V, how much energy is required?
(310102m) A capacitor's voltage decreases in a very predictable way. Which of the answers below represents the total time constant intervals required to achieve a full discharge in a typical capacitor?
Convert ¹⁰⁄₁₅ to a decimal.
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 7.5 cm and the effective area of the diaphragm is 0.02 m².
True force balance negative feedback system consists of:
State the number 3521.785 x 10³ using decimal notation and round the answers to three significant digits.
1 pound force is equal to
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?
What are the three main elements of a regulator?
(310102m) The relationship between resistors, capacitors and time intervals is an interdependent one. Which of the answers below would be the reaction of a capacitor if you replaced it with a larger one in a simple circuit?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
Convert 0.875 to a fraction.
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of increasing hardness, but a reduction in ductility?
Labels are an important piece of the WHIMS structure. Which of the labels below would be used when damage occurs to the original supplier label?
There are numerous types and styles of valves in industry. Which of the actuators below best represents the following picture?
To move 50 C across two points. when the voltage is 5 V, how much energy is required?
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?
Tube fittings can be put into three general categories, each with distinct components. Which of the categories below requires a flared tube end, nut and sleeve?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the thorough, precise safety details for suppliers?
In the fraction A/B, is A the numerator?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Chart recorders have some specialized applications in industry. Which of those applications would best make use of the multiple temperature inputs available?
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?
Which term can be defined as the pressure measured from absolute zero?
To perform an "Angularity" adjustment, the order of step(s) is/are?
Inductive reactance is the _________________ to change in current created by coil in an AC circuit.
The volume of a rectangle is calculated with which correct equation?
If a closed tank is pressurized to 12 psig and the pressure gauge at the bottom of the tank reads 56 psig, what head (in meters) of a liquid with a R.D. of 0.75 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?
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 at the open end of a process pipe?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "3" in the picture below?