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Instrumentation: FIRST PERIOD

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

In the SI system, the unit used for mass is?
(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 employers?
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
The statement, "Whatever is done to one side of an equation, can be done to the other side of the equation" is false.
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?
In the WHMIS system, the two types of labels that are the most commonly used are? Use the answers provided.
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?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the most common of those methods?
"The removal of lead sulfate crystals, which reduces the effectiveness of lead-acid, sealed AGM or flooded (wet cell-filler caps) batteries." is the best definition of which of the terms below?
If a closed tank is pressurized to 145.345 kPa and the pressure gauge at the bottom of the tank reads 156.456 kPa, what head (in feet) of a liquid with a R.D. of 0.67 is contained in the tan
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
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 increase in resistive load?
There are a number of common parts to any valve. Which of the terms below would best be described as the object supplying the opening or closing motion of the valve?
What is the density of water?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with immediate and serious toxic effects?
OH&S recognizes that there are a number of hazards on any jobsite. Which of the answers below best represents the number of broad categories that it has grouped those hazards into?
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
Factors affecting induced voltage include:
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
34.450 in engineering notion is what?
(310103f) Strain type gauges are commonly found in industry. Which of the strain gauges below is the most accurate?
With a direct acting actuator, as air pressure increases:
What is the area of a semi-circle with a diameter of 2.45m?
There are several different ways to apply force to an actuator. Which one of the methods below would a vane actuator use for operation?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the volume of a mass of gas is inversely proportional to its pressure."?
The best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
(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??
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?
"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?
The basic unit of matter is called?
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?
The result of a _______ actuator is installed with a ________ valve will be air-to-close
Convert ⅘ to a decimal.
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=nRT"?
The height of a free standing or rolling scaffold is restricted to no more than 3 times the smallest base dimension. This guideline comes from which of the acts below?
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 257 °F in °C?
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
The desiccant head adsorbes water vapour due to which?
(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?
(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 power circuits that are considered low energy?
A control valve is to have a stem travel of 5.6 cm. The diaphragm in use has an area of 0.09m². What strength of spring must be used if the desired pressure change from from 40 kPa to 110 kPa will fully stroke the valve?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 75 MPag??
(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, prior to any work, the administrative procedures to be in place?
(310103d) There are several different designs of regulator. Which of the elements below are you affecting when you adjust spring compression?
In the WHMIS system, "Infectious materials" is represented by which hazard class? Choose from the following answers.
In the WHMIS system, "Other poisons" is represented by which hazard class? Choose from the following answers.
What is the main purpose of valve positioners?
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?
"A method of expressing numbers in terms of a number between 1 and 10 multiplied by a power of base 10" is a definition of what?
(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?
The equation to calculate density is?
"A two ratios that are equal in an equation." is a description of which mathematical term?
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?
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?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
(310102m) The charging and discharging of a capacitor is a mathematical relationship. In the equation, τ=R x C, which of the answers below would best refer to the "C"?
(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?
When making a span adjustment, what is the first adjustment made?
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?
(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 power circuits that are extremely low voltage?
The volume of a sphere is calculated with which correct equation?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Convert ⁸⁄₁₉ to a decimal.
(310104a)There are numerous components to a valve. Which of the components below would best be referred to as a seal for the static portion of the valve against leakage?
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.
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?
All safety enclosures are tested in the factory to certify the maximum pressure released in an explosion that it can withstand. Which of the answers below would describe the testing required for a explosion-proof enclosure?
There are numerous types and styles of valves in industry. Which of the additions to a scotch yoke valve allows for proportional positioning?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the minimum safety standards set for employers?
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?
In the WHMIS system, "Acute poisons" is represented by which hazard class? Choose from the following answers.
Newton's second law is also known as?
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a O-ring seal style fitting?
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
Calculate the relative density for a liquid whose density is =743.2 kg/m³.
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
(310101c) There are a wide variety of tubing fitting types. Which of the fittings below would best be used when terminating tube connections?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as a refinement in a measurement?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
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?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, verifying a physical lock or securing method is placed on all isolating devices, would be which of the steps below?
If a pressure gauge is reading 54 kPag and the local atmospheric pressure is 99 kPaa, the the absolute pressure gauge reading will be?
The symbol for resistance is which of the below?
In a simple circuit, if E=3 V and R=5 ohms, what is the current of the circuit?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
How is the term "Cv" calculated?
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?
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
What is the term used to describe the total opposition to current flow in an AC circuit?
The volume of a cylinder is calculated with which correct equation?
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?
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?
The symbol for a amperes is which of the below?
(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?
Certain categories of tubing has specific applications in industry. Which of the categories below would be used in applications where no internal pressures need to be tolerated?
With a reverse acting actuator, as the pressure increases:
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?