A randomized 100 question test from a pool of 1236 questions, good luck!
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would be to used in squaring the drive arm and link as well as the range arm?
There are several types of measuring elements used in industry. Which of the answers below best represents the letter "C"?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the period while the capacitor gets to 5τ?
Stress affects metals in several different ways. Which of the answers below would best be described as the permanent deformation at a slow rate?
(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?
A "wheel and axle" is an example of which type of machine?
Even though explosion safety equipment must be able to deal with extreme pressures, maintenance must also be allowed to occur. Which of the enclosures below would allow for both maintenance and protection from explosion?
If field servicing, or removing, a control valve from a piping system it is important to recognize the piping isolations. Which of the isolations below correctly identifies the following picture?
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?
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?
(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?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the Imperial relative temperature scale?
Solve for the hypotenuse.
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for corrosive material?
The best description for "Span error" in relation to calibrating instruments is which of the following?
If a battery has a rating of 90 Ah, theoretically it could provide 4.5 A for how long?
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.
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to depth." is one of the principles of which answer below?
Solve for the missing side.
"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?
A pressure gauge at the bottom of a tank indicates a pressure of 7.9 psi. The relative density of the liquid is 0.87. What is the depth of the liquid in feet?
(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 4 tubes together?
When making an angularity adjustment, what is the first adjustment made?
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for converting a measured PV into an output signal?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "2"?
In a simple circuit, if I= 6 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
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.
The CEC generates a hazardous area result by investigating the contents of the area. Which of the designations below is based on an explosive atmospheres duration and frequency of occurrence?
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?
(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 1?
The radius of a circle is calculated with which correct equation?
From the information given in the diagram below, what is the current flowing on branch R1?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
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"?
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?
"Change (variance) In total amounts expressed as percentages." is the description of which term?
There are several varieties of manufactured resistors. Which of the answers below is generally regarded as the most common resistor?
(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?
(310101c) Although soldered fittings for tube can be used on pressure and DWV applications, there are some differences between the fittings. Which of the answers below describes one of the major differences that the DWV fittings have when compared to pressure fittings??
Gauge pressure is?
Calculate the force, in newtons, which is developed to a circular diaphragm with a diameter of 75 cm, when a a pressure of 56 kPa is applied:
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
Electromagnetism is a property of electrical charges moving through materials. Use one of the answers below to correctly fill in the blanks of the following sentence, "A magnetic fields strength in close proximity to conductor is _________ to the amount of current flowing through it."
If a battery has a rating of 60 Ah, theoretically it could provide 3.3 A for how long?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for compressed gases?
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would have two tube ends in line and one pipe connector?
The trigonometric ratio of cosine is calculated with which mathematical equation?
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?
Before entering a confined space for the first time or re-entering after a break, it is a good practice to do which of the following?
Two pieces of eye protection should be used together when grinding or chipping. Choose the best answer from the selection below.
There are several different ways to apply force to an actuator. Which one of the methods below would use a piston for operation?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
A change in dielectric material in a capacitor, will change it's capacitance. Which of the dielectric materials below has the least capacitance?
The following statement is the best description of which of the terms below, "The electric dynamic that sustains the charge difference in a circuit."?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type L tube type typically have?
If a closed tank is pressurized to 26 psig and the pressure gauge at the bottom of the tank reads 53 psig, what head (in meters) of a liquid with a R.D. of 0.15 is contained in the tank
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of improving the resistance to metal fatigue and facturing?
From the information given in the diagram below, what is the voltage drop over R3, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
A multi-wheel cutter is used when
"The quantity of motion of a moving body, measured as a product of its mass and velocity," is the description of which mathematical term?
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
The CEC has classified hazardous areas by a specific set of terms. Which of the answers below contains those terms in the correct order?
What does the term "Cv" represent in calculating pressure drop?
Some enclosures have removable coverings to allow maintenance work. Which of the enclosures below would have a square cover?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of green represent?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "tolerance" rating?
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate mass?
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?
Which of the welding processes below would welding goggles be worn?
There are several different items involved in removing or installing a flanged control valve. Which of the items below provides the seal between the flanges?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "A"?
An instrument technician sometimes has to do calibrations while the process is still running. Which of the terms below identifies a calibration done on a live process?
Tubing has many distinctive applications in industry. Which of the associations below provides the standards commonly used for tubing in instrumentation?
State the number 45.7258 x 10¹¹ using engineering notation and round the answers to three significant digits.
8 coulomb of charge requires how many electrons?
What is the density of water?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=ZnRT"?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
"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?
If it were necessary to operate an 50-300 kPa valve actuator, but you had a 20-80 kPa control signal, the relay used would be?
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.
A battery has a rating of 80Ah, this means it can supply
If, for every 15 C of charge, 45 J of energy is available, what is the voltage?
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?
There are many terms for specific electrical components. Which of the components below is best described as a passive electrical component with the primary function to limit the flow of electric current?
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.
There are two very common types of metric vernier calipers. If the caliper that you are using has 0.5mm graduations on the beam, which of the answers below represents the graduations required on the Vernier scale?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the answers below would be best describe a major difference between metal conduit and cable tray?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
Calculate the gain when a change from 0.85 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 18 psig in the relay output occurs.
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious biohazardous material?
The 3 key elements of the WHIMIS system are, worker education, labels and ________. Choose from the answers below to fill in the blank.
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
"The heat required to raise the temperature of the unit mass of a given substance by a given amount with no change in it's phase:, is a description of which physics term?
(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 Class 1 circuits that are controlled remotely?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 1 MPag?
"This physical factor within the environment that harms the musculoskeletal system." This statement best describes which of the hazard groups below?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the increased speed of supplying the actuator with air?
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?