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Instrumentation: FIRST PERIOD

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

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?
(310105i) The reaction a solid has to an external force that is applied to it can be measured. Which of the units below corresponds to "Strain" measurement?
(310102c) Resistors have several construction methods. Which of the resistors below would have 2 fixed terminals and a sliding contact?
(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 require constant replacement?
The inert purge gases for GMAW and GTAW welding processes are non-toxic, but are still dangerous. In what situation below would these gases be a danger?
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a two ferrule style fitting?
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?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
What type of flux is generally used the most in electronic soldering?
Determine the volume of a tank in meters cubed, with the dimensions of 2.56 m, by 4.36 m, by 1.30 m
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a field device that has a minimum of 1.3 volts it can develop or contain?
Alternating current is bi-directional.
In the SI system, the unit for time is?
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?
The supplier label:
"The distance around the outside edge of a two-dimensional shape." is the definition of which mathematical term?
"A fraction that is less than one, with the numerator less than the denominator", is a description of which type of fraction?
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?
There are several different notations on a length of pipe. Which of the notations below would have the thickest pipe wall?
All pipe in a piping system can be grouped into two categories. Which of the answers below best represents those categories?
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?
Magnetism has several terms that must be understood. Which of the terms below would best be defined as a measurement of the total magnetic field which passes through a given area?
Calculate the mass of a substance that has a density of 1479 kg/m³ and occupies a volume of 0.00631 m³
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type K tube type typically have?
Circular chart recorders have several specific accessories. Which of the accessories below would use an ambient compensation capillary?
Calculate the gain when a change from 0.5 psig to 1.35 psig in nozzle backpressure and a change from 3 psig to 12 psig in the relay output occurs.
Calculate ¾ x ⅚, and state answer as a proper or mixed fraction
When wire rope is used for lifting purposes, there are several safety factors involved. Which of the answers below best represents the safety factor for transporting workers?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
State this fraction as a mixed fraction: ⁵⁵⁄₈.
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "Newtons"?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve ensuring contamination free parts and soldering tip?
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?
Reduce ¹²⁄₆₀ and state as a proper or mixed fraction.
In the SI system of measurements, there are several symbols used for magnetism. Which of the measurement units below would represent "relative permeability"?
What is the area of a semi-circle with a diameter of 2.45m?
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
What is the name of the tool used to cut internal threads after drilling a hole?
The basic unit of matter is called?
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 outside the magnet?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of removing oxides and sulfides as well as refining the grain of the steel?
The CEC generates a gas grouping based on the potential combustion, and results of combustion. Which of the groups below would non-metallic dust that is electrically conductive belong to?
What is the formula that the pneumatic relays amplification or gain is expressed by?
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?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
(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?
"The law that the algebraic sum of the products of the current and resistance in the conductors forming a closed loop in a network is equal to the algebraic sum of the electromotive forces in the loop." This statement is the best description of which electrical law below?
A conductor is passed through a magnetic field and a voltage is induced, whose law is this?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "C"?
"A proportion of a whole expressed as a number between 0 and 100 rather than as a fraction."
There are many studies on how pressure and force affect fluids. "Fluid pressure is exerted in all directions." is one of the principles of which answer 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??
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?
"This workplace hazard consists of organisms or organic matters produced by these organisms that are harmful to human health." This statement best describes which of the hazards below?
Calculate the relative density for a liquid whose density is =743.2 kg/m³.
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the addition or release of air from the actuator to achieve proper plug placement?
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to ignition temperatures?
There are many studies on how pressure and force affect fluids. "Horizontal runs do not increase pressure." is one of the principles of which answer below?
Faraday's law of induction states:
There are several definitions used frequently in the CEC."Containing any explosion originating within its housing and prevent sparks from within its housing from igniting vapors, gases, dust or fibers in the air surrounding it." would best describe which of the terms below?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
What is the main purpose of valve positioners?
In the fraction A/B, is B the denominator?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosures classification must be reduced from Class I, Zone 1 to non-hazardous?
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
Pick the answer that will fill the blank. "_______ of the voltage would appear across the open circuit in a ______ circuit."
Which of the terms below is measured in "Joules"
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, removing securing devices and any isolation points once work area is deemed safe, would be which of the steps below?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
Some enclosures have removable coverings to allow maintenance work. Which of the enclosures below would have a round cover?
State ⁸⁴⁵⁶⁄₂₄₃ as a mixed fraction.
If, for every 12 C of charge, 50 J of energy is available, what is the voltage?
Around most construction tasks, eye protection is important. The selection of eye protection will rest mainly with which of the following answers? Choose the best one that applies.
In any intrinsically safe loop there are several main items that are vital to the loop. Which of the answers below contains those items?
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?
"Is an electrical quantity that measures how the device or material reduces the electric current flow through it." is the best description for which of the terms below?
(310102m) There are numerous electrical devices in a circuit. Which of the devices below can be best described as a passive two-terminal component used to store and release electrical energy?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe the largest diameter of the thread?
The Si unit for measuring force is the Newton. Which of the answers below is equal to an object that has a mass of 65830 g?
Reduce and state answer as a proper or mixed fraction: ³⁴⁰⁄₁₆.
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?
The perimeter of a rectangle is calculated with which correct equation?
"An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force." is a description of which one of Newton's laws?
Of the terms below, what is "Work" measured in?
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?
(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 different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
Alloy steels are very common in industry. Which of the types of alloy steel would "Ferritic" piping be?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
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 a Class I, Zone 2?
Of the types of link and lever calibration methods below, which one requires a minimum of 4 adjustments?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the SI relative temperature scale?
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?
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for more than 10, but less than 1000 hours a year?
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?
There are several varieties of manufactured resistors. Which of the answers below is constructed with a ceramic core?