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Instrumentation: FIRST PERIOD

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

The standard unit of resistance is which of the below?
The result of a _______ actuator is installed with a ________ valve will be air-to-open
Alternating current is bi-directional.
The symbol for a voltage drop is which of the below?
There are several different notations on a length of pipe. Which of the notations below would have the largest pipe diameter?
"Any point on a circuit where two or more current flows meet or are split." is the best description of which of the terms below?
What is the main purpose of valve positioners?
The prefix "Milli" can be expressed as?
The types of tube available in industry are somewhat application specific. Which of the tube types would be best suited for a corrosive process?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
The properties of a gas are unique to its molecular make-up. Which of the terms below would best be defined as "is the pressure required to liquefy a gas at its critical temperature."?
What is the SI unit of force?
With a reverse acting actuator, as the pressure increases:
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?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the SI absolute temperature scale?
From the information given in the diagram below, what is the voltage drop over R1, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most maintenance free?
How many coulombs of charge pass though a given point in 1 second, if the current is 16mA
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?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Hydrogen belong to?
If a closed tank is pressurized to 134.345 kPa and the pressure gauge at the bottom of the tank reads 169.456 kPa, what head (in feet) of a liquid with a R.D. of 0.24 is contained in the tan
State the number 0.003402 using decimal notation and round the answers to three significant digits.
In the WHMIS system, "Corrosive materials" is represented by which hazard class? Choose from the following answers.
What power of soldering station is used for electronic soldering?
"A two ratios that are equal in an equation." is a description of which mathematical term?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the relationship between the volume and temperature in a fixed mass of gas."?
If a closed tank is pressurized to 30 psig and the pressure gauge at the bottom of the tank reads 45 psig, what head (in meters) of a liquid with a R.D. of 0.45 is contained in the tank?
Soldering is a common method of joining metals. To be effective the which of the items below must have a lower melting point than the parent metals?
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 Zone 2?
Convert 88 PSI to kPa
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?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
In the SI system, the unit used for mass is?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a glass core?
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?
"Two external forces acting on an object or surface that are not in opposition of each other;" is a description of what type of stress?
(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 larger OD tube to a smaller OD tube?
"Having only magnitude, not direction, such as mass", is a description of which mathematical term?
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?
Reduce ⁹⁄₁₄ and state as a proper or mixed fraction.
Movement of the actuator stem by air pressure applied to a flexible membrane is a characteristic of which actuator?
"Control devices that use the fluid medium that they control to obtain their energy" is a description of what?
Chart recorders still have a place in industry for specific applications. Which of the applications below would be used to fulfill ABSA requirements?
The result of a _______ actuator is installed with a ________ valve will be normally open, fail closed
One coulomb is equal to how many electrons?
State the number 45.7258 x 10¹¹ using engineering notation and round the answers to three significant digits.
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
(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 installation of an electrical communication system?
Solve the equation:(4)(5)+4
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
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?
The area of a circle is calculated with which correct equation?
In a baffle-nozzle-restrictor motion detector the:
Which of the welding processes below would welding goggles be worn?
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 "⅜" refer to?
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a single ferrule style fitting?
There is a safe ratio for the use of extension ladders. If there is a ladder extending 18 ft vertically, how far from the wall should the base of the ladder be?
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.
A "wheel and axle" is an example of which type of machine?
From the information given in the diagram below, what is the total parallel resistance of the circuit?
Materials with four electrons in their valence shell are considered what?
Give the absolute pressure in a vessel given a vacuum gauge reading of 5.3 inches of Hg and a local barometric reading of 43.5 inches of Hg.
If a closed tank is pressurized to 125.345 kPa and the pressure gauge at the bottom of the tank reads 186.456 kPa, what head (in feet) of a liquid with a R.D. of 0.05 is contained in the tan
Circular chart recorders have several specific accessories. Which of the accessories below would use an ambient compensation capillary?
In Unified National nomenclature what does the "12" represent in this bolt class- 1/2-12-UNC 2B
Which of the valves below would be used for isolation on each side of a control valve?
(310102g) Energy can transition between various forms. Which of the terms below can be best described as the percentage of total energy input to a machine or equipment that is consumed in useful work and not wasted as useless heat?
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a refrigeration system?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁T₂=P₂T₁"?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 6 cm diameter filled with gas?
Solve for x: (3)(5)+9=x
Calculate ⁶⁄₇ ÷ ⁴⁄₅, and state answer as a proper or mixed fraction
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for oxidizing material?
The two main functions of a negative feedback system are:
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
In the WHMIS system, "Flammable and combustible material" is represented by which hazard class? Choose from the following answers.
If the total error is 1.4 and the dead band error is is 0.6, what is the hysteresis value?
The basic unit of matter is called?
What pressure does a column of liquid exert with a density of 48.9 lbs per cubic foot and a height of 6.5 feet
(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?
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?
When making an angularity adjustment, what is the first adjustment made?
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
Alloy steels are very common in industry. Which of the types of alloy steel would "Martensitic" piping be?
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?
In the WHMIS system, "Oxidizing material" is represented by which hazard class? Choose from the following answers.
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the least common of those methods?
Covert 34.5 kPa to psi.
7 coulombs of charge require how many electrons?
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 "C" in the picture below?
"An angle of 90°" is a description of which mathematical term?
The CEC generates a hazardous area result by investigating the contents of the area. Which of the designations below would be used based on the explosive characteristics of the material?
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for receiving an output signal and converting that into a PV value?
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?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious material with other toxic effects?
State ⁴⁷⁸⁄₉₈ as a mixed fraction.
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?