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Instrumentation: FIRST PERIOD

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

State the number 3521.785 x 10³ using decimal notation and round the answers to three significant digits.
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 several different items involved in removing or installing a flanged control valve. Which of the items below provides the seal between the flanges?
Certain categories of tubing has specific applications in industry. Which of the categories below would be used in applications where actuator energy is carried to an FCE?
1 pound force is equal to
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the answers below would be best used to support an in-line instrument?
There are several different ways to apply force to an actuator. Which one of the methods below would use a handwheel for operation?
"An angle is one which is more than 90° but less than 180°" is a description of which mathematical term?
With respect to pressure drop, which control; valve has "high" recovery characteristics?
State the number 4.785 x 10 ⁻⁵ using decimal notation and round the answers to three significant digits.
"Is done when a force that is applied to an object and moves that object." is a description of which mathematical term?
Calculate the gain when a change from 0.25 psig to 1.5 psig in nozzle backpressure and a change from 3 psig to 20 psig in the relay output occurs.
The standard unit of conductance is which of the below?
(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"?
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 trigonometric ratio of tangent is calculated with which mathematical equation?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
Choose the answer below that has the words in order to correctly fill in the blanks. "A ______ in per unit volume temperature of a conductor, offers ______ resistance to current"
(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?
Calculate the gain when a change from 1.25 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 15 psig in the relay output occurs.
Matter that is composed of more than one type of atom is called?
There are several properties to a circuit. Which of the terms below best defines the opposition to a change in current?
Which of the valves below would be used for isolation on each side of a control valve?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "ppwer" rating?
For every gas law there is a corresponding equation. Which of the gas laws below developed with the addition of Avogadro's Gas Law?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a binder?
Materials with four electrons in their valence shell are considered what?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen position adjustment/verification be?
"Is the change in velocity divided by the elapsed time for the change to be completed." is the description of which mathematical term?
What percentage of 35 is 21?
Reduce ³⁴⁰⁄₄₀ and state as a proper or mixed fraction.
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?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
When used to cut mild steel. what is the recommended angle for a cold chisel?
There are many different applications for copper tube. Which of those applications below would have the greatest internal operating pressure ratings?
If heat is removed from a metal, does it contract?
For every gas law there is a corresponding equation. Which of the gas laws below is missing from the Combined Gas Law?
If the total error is 1.3 and the dead band error is 0.7, what is the hysteresis value?
Before entering a container to work, your Journeyman asks for a gas test to be done. The foreman agrees and puts the sniffer close to the floor of the container. Of the following answers, which gas would he be testing for?
(310104d) Control valves have a number of accessories that they can use for a variety of applications. Which of the answers below would be best reflect the common accessory for valve plug placement accuracy?
True force balance negative feedback system consists of:
Section 315(1), (2) and (3) covering guardrails can be found in which piece of legislation below?
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
Covert 3 ⅘ to an improper fraction
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 this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. what is the voltage drop over R2
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?
Use the answers below to fill in the blanks of the following sentence. "The _____ of the plates in a capacitor is _______ to it's capacitance."
Hysteresis can only be calculated.
If a closed tank is pressurized to 121.345 kPa and the pressure gauge at the bottom of the tank reads 175.456 kPa, what head (in feet) of a liquid with a R.D. of 0.56 is contained in the tan
"Can handle pressures more accurately and can handle higher pressures" are two advantages of using which regulator?
There are several grades of iron and steel. Which of the answers below best represents a material that is extremely brittle because of it's high carbon content?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve affixing the work to be done to ensure it doesn't move while working on it?
The volume of a sphere is calculated with which correct equation?
(310103f) Strain type gauges are commonly found in industry. Which of the gauges below is known to be non-linear?
Solder is a vital component of the soldering process. Which of the solders below is most commonly used for repair work done by hand?
From the information given in the diagram below, what is the current flowing on branch R2?
If a fitting increases in cost from $675 to $890, what is the percentage increase of the fitting?
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?
There are many terms for specific electrical components. Which of the components below is best described as a passive electronic component that stores energy in the form of an electrostatic field?
"The ______ is divided between two series resistors in direct proportion to their resistance." The term that best fits to complete the sentence is which of the terms below?
There are several types of measuring elements used in industry. Which of the answers below best represents the letter "C"?
Calculate the gain when a change from 1.55 psig to 2.15 psig in nozzle backpressure and a change from 3 psig to 20 psig in the relay output occurs.
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?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "ƪ" represent?
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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁n₂T₂=P₂V₂n₁T₁"?
Of the adjustments below, which is the most common adjustment made?
"A hazard within the workplace that can harm the body without necessarily touching it. Vibration and noise are examples of this type of hazards." This statement best describes which of the following hazard groups?
State 7 ⁹⁄₁₇ as an improper fraction.
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
Stress affects metals in several different ways. Which of the answers below would best be described as the permanent deformation at a slow rate?
There are several broad categories of tubing applications. Which of the categories below would steel tube be most commonly used for?
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 0-14 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
Purging is an effective means of reducing the potential hazards of an enclosure. Which of the answers below best describes the type of pressure produced in the enclosure by purging?
(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??
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?
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 properties of a gas are unique to its molecular make-up. Which of the terms below would best be defined as "the point at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied."?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area with easily ignitable fibers or flyings, but the concentration of these fibers or flyings are not in quantities that would produce ignitable mixtures?
In the WHMIS system, "Flammable and combustible material" is represented by which hazard class? Choose from the following answers.
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the flexibility of operating modes?
(310105d) Efficiency is one of the benchmarks that is used for rating machines. Which of the measurement units below is used with efficiency itself?
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?
The symbol for a amperes is which of the below?
"To cause the valve to open, an increase in pressure to the actuator is required" is the definition of?
State the number 23.569 x 10¹³ using engineering notation and round the answers to three significant digits.
Biological Hazards can be further broken down into subsections. Of the answers below, one is not a biological hazard, choose the answer that doesn't fit.
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of red represent?
When allowing power to flow to a device, purging may be required beforehand. Which of the answers below best represents the complete volumes of air with positive pressure?
(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?
There are several different types of carbon steel in any piping system. Which of the types below would have more than a 0.6%% carbon content?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁T₂=P₂V₂T₁"?
Determine the voltage V(bd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
How many coulombs of charge pass though a given point in 1 second, if the current is 15mA
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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 R1?
(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?
State the number 7.428 using scientific notation and round the answers to three significant digits.