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Instrumentation: FIRST PERIOD

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

"A proportion of a whole expressed as a number between 0 and 100 rather than as a fraction."
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?
Synthetic slings can be selected for a task specific application. Which of the sling property below would allow a nylon sling to be used in an explosive atmosphere?
If a pressure change of 20 kPa to 60 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 0.09 m^2
To move 250 C across two points. when the voltage is 20 V, how much energy is required?
"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?
What is the basic unit of matter?
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 decrease in resistive load?
"A whole number and a fraction combined into one number", is a description of which type of fraction?
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
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.
The basic unit of matter is called?
"Is a triangle with two congruent sides and congruent base angles." is a description of which mathematical term?
If a closed tank is pressurized to 135.345 kPa and the pressure gauge at the bottom of the tank reads 172.456 kPa, what head (in feet) of a liquid with a R.D. of 0.14 is contained in the tan
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?
What is the term used to describe the total opposition to current flow in an AC circuit?
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?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the least common of those methods?
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?
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?
If, for every 20 C of charge, 60 J of energy is available, what is the voltage?
Tubing has many distinctive applications in industry. Which of the associations below provides the standards commonly used for tubing in instrumentation?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "A"?
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 voltage delivered to the field device?
To move 75 C across two points. when the voltage is 10 V, how much energy is required?
From the information given in the diagram below, what is the total current if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
Convert 4 ⅞ to an improper fraction.
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 numerous steps to drilling with a power drill. Which answer below correctly identifies the size of the center punch mark in a piece to be drilled?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the workers rights and responsibilities?
What pressure is exerted at the base of a tank 6.5 meters high when filled with a liquid with a density of 1200kg/m³?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a binder?
(310105i) Any solid has inherent properties associated with it. When measuring the force applied to the entire area of a solid, which of the answers below are you trying to measure?
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?
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?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "C"?
(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 government agencies?
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
In the WHMIS system, "Infectious materials" is represented by which hazard class? Choose from the following answers.
Isolate the following equation for "v": d=vt
Newton's first law is also known as?
In what kind of circuit would all of the applied voltage appear across an open circuit?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type ACR tube type typically have?
To perform a "Zero" adjustment the order of step(s) is/are?
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a 2.5 mm minimum water gauge flow to be maintained?
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to density." is one of the principles of which answer below?
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most common?
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?
(310103d) There are several different designs of regulator. The setpoint in a spring-loaded regulator is controlled by which of the answers below?
What is the name of the tool that is used on round stock to cut external threads?
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
"The longest side of a right triangle, opposite the right angle." is a definition of which right angle triangle mathematical term?
Solve for the hypotenuse.
Stress affects metals in several different ways. Which of the answers below would best be described as the permanent deformation at a slow rate?
What volume does a substance that has a density of 1369 kg/m³ and has a mass of 4.50 kg?
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 3-15 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
There are many studies on how pressure and force affect fluids. "Container shape does not affect fluid pressure." is one of the principles of which answer below?
(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??
Magnets have been classified into two distinct groups. Which of the answers below is best described as an electromagnet which only retains magnetism when an electrical current is running through it?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
(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 a resistor with a smaller one in a simple circuit?
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.
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 "SS" refer to?
A standard pipe size chart will have piping up to 24". At which pipe size does the OD in inches, match the NPS in inches?
There are several components to a properly soldered joint. Which of the components below would be used during soldering to remove the oxide layer?
If the total error is 1.7 and the dead band error is is 0.5, what is the hysteresis value?
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below can be best described as the the process of expending the accumulated energy in a capacitor?
"This type of breathing apparatus is designed to allow a reserve of air for 5-10 minutes." The answer below that this statement best describes is which one?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Acetylene belong to?
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?
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?
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 letter "A" in the picture below?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the the responsibilities of those associated with the work site?
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?
Locking out energy sources physically is a vital part of servicing valves. Which of the valves below would you use a circular lockout device on the handle?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below is best defined as "The only method that avoids the propagation of combustion to the surrounding atmosphere by allowing the explosion to occur, but confining it to a well-defined area."?
"An electric circuit in which the normal path of current has been interrupted." is the best description of which of the terms below?
The result of a _______ actuator is installed with a ________ valve will be normally closed, fail open
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?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
Having to convert between SI and USCS measurements is commonplace in industry today. Which of the answers below is the correct conversion for 45 lbf?
There are many terms associated with "Energy". Which term below is correctly described as, "done on an object when an applied energy moves it through a distance"?
"Is not designed for continuous occupancy, and has limited or restricted means for entry or exit." This statement best describes which of the following terms?
(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 2 circuits that are controlled remotely?
(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?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the methods below would be best to run tubing to location?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
Interpretation and use of correct installation standards is vital to the success of an instrument technician. Which of the associations below have set out the standards that must be followed?
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?
Proper choices need to be made with the mounting of instruments. Which of the answers below would be a disadvantage of a instrument stand that has a cable mount?
From the information given in the diagram below, what is the voltage across each resistor?
What are the two main systems of negative feedback?
"This workplace hazard consists of substances, mixtures and materials that can be classified according to their health risks and dangers." 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 the process fluid need to pass through the instrument for accurate measurements?
State the number 469.4 x 10¹⁵using engineering notation and round the answers to three significant digits.
In the fraction A/B, is B the denominator?
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?
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?
"The relationship between valve position and flow in the in an operational process system.", is the best description of which term below?
Worker education is the responsibility of the: