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Instrumentation: FIRST PERIOD

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

Convert 45.9 kPa into psi
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
The area of a circle is calculated with which correct equation?
There are numerous types and styles of valves in industry. Which of the actuators below best represents the following picture?
Calculate the relative density for a liquid whose density is =743.2 kg/m³.
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?
"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?
Matter that is composed of more than one type of atom is called?
(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 tube to tube?
(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?
State the number 479.3 using engineering notation and round the answers to three significant digits.
How many coulombs of charge pass though a given point in 1 second, if the current is 16mA
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=nRT"?
If a pressure change of 20 kPa to 90 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 5.5 cm and the effective area of the diaphragm is 0.065 m^2
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would a "hose test" pass be required?
The supplier label:
(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 several types of measuring elements used in industry. Which of the answers below is best represented by the picture 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 the grounding circuits that are isolated?
In fluid mechanics, there is always a loss in pressure due to several factors. Which of the factors below would most affect this loss in pressure?
"An adjustment that progressively increases or decreases reading over the scale, but does not change the base point" is the definition of which adjustment?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, testing of the isolation to all sources of energy to the work area, would be which of the steps below?
Piping material that is non-ferrous is most common in lower temperature services. Which of the answers below would best be classified as a "non-ferrous" material?
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?
Isolating process lines with a physical barrier is one of the steps for safe field servicing of a control valve. Which of the blank types below would best be described a physical barrier between two flanges of sufficient diameter to fill the entire diameter of the pipe to prevent the passing of material beyond that point?
A mass of 7 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
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?
"An adjustment that shifts the entire scale the same amount up or down" is the definition of which adjustment?
If a pressure change of 20 kPa to 80 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 2.7 cm and the effective area of the diaphragm is 0.08 m^2
All objects have mass which is affected by gravity. Which of the answers below represents the SI approximate value for acceleration due to gravity?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "3"?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a binder?
"The distance traveled divided by the time elapsed to reach final position." is the 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?
"This piece of legislation came into effect in 1915. This act deals primarily with compensation, medical aid and rehabilitation of a worker due to a job-related injury." Which of the answers below is best described by this statement?
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 general purpose?
(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?
In the WHMIS system, "Compressed gas" is represented by which hazard class? Choose from the following answers.
In fluid mechanics, there is always a loss in pressure due to several factors. Which of the factors below would most affect this loss in pressure?
Which of the following is not affected by a positioner?
The trigonometric ratio of sine 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 6 cm diameter filled with gas?
Which are the two major categories of pressure regulators?
What is usually referred to when loading an ammeter?
The MSDS for each controlled product must be:
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 7 cm diameter filled with gas?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
State the number 0.00007342 using engineering notation and round the answers to three significant digits.
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would move as the direct result of the rotation of the torque shaft?
(310101c) For higher working pressures, generally the wall thickness of tubing will increase. Which of the answers below would best relate to the effect of a tube's increased wall thickness?
State the following number, 0.005687 using scientific notation and round the answers to 3 significant digits.
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 dealing with welding gases and fumes, it is a good practice to limit your exposure to them. The first option to reduce exposure to these fumes and gases is to weld in which of the following locations?
There are many terms associated with "Energy". Which term below is correctly described as, "is the energy of physical positioning."?
If a closed tank is pressurized to 16 psig and the pressure gauge at the bottom of the tank reads 31 psig, what head (in meters) of a liquid with a R.D. of 0.37 is contained in the tank
Which of the laws below can be best described by the following statement, "The strength or intensity of an unvarying electric current is directly proportional to the electromotive force and inversely proportional to the resistance of the circuit"?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
In Unified National nomenclature what does the "1/2" represent in this bolt class- 1/2-12-UNC 3A
"A fraction that is less than one, with the numerator less than the denominator", is a description of which type of fraction?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
"_________ is an injury caused by freezing of the skin and underlying tissues. First your skin becomes very cold and red, then numb, hard and pale." Use the answers provided to fill in the blank.
State the number 0.003402 using decimal notation and round the answers to three significant digits.
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.
In the WHMIS system, "Oxidizing material" is represented by which hazard class? Choose from the following answers.
The CEC generates a air grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Propane belong to?
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?
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:
The symbol for a amperes is which of the below?
If side "A" is equal to 45mm and side "B" is equal to 76mm, solve for side "C".
If there was a need to control the process pressure upstream of the regulator, which one of the devices below would be used?
Of the adjustments below, which is the most common adjustment made?
(310104b) Valves are a piece of equipment that needs to be replaced over time. Before removing,or servicing, an high pressure in-line valve, which of the procedures is the worker also responsible for?
If, for every 20 C of charge, 80 J of energy is available, what is the voltage?
There are several different notations on a length of pipe. Which of the notations below would have the smallest pipe ID?
Batteries come in two common varieties. Which of the terms below can relate best to a non-rechargeable cell?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
If the total error is 1.7 and the dead band error is is 0.5, what is the hysteresis value?
Batteries come in two common varieties. Which of the terms below can relate best to a rechargeable cell?
Solve for the hypotenuse.
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 tight seal to the face is required by all respirators. This is a critical element in which of the following type(s) of respirator? Of the options below, choose the best answer.
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
convert 4 ⁴⁄₁₁ to an improper fraction.
What are the three main elements of a regulator?
Which pilot valve has two common supply connections, and two connections for output?
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be best suited to a valve that would be leak-proof at any temperature or pressure
A mass of 6 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
1 kPa is equal to _____ psi
Use the answers below to correctly fill in the blanks. "Resistance of a conductor is________ to it's ______."
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed medical air system?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "ppwer" rating?
Convert 88 PSI to kPa
Piping material that is non-ferrous is most common in lower temperature services. Which of the answers below would best be classified as a "non-ferrous" material?
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."?
The industry committee network is made up of three bodies. Which of the bodies below acts as a link between the AIT Board and the LACs?
What is the formula that the pneumatic relays amplification or gain is expressed by?
The ability of a material to concentrate magnetic lines of force within a material is called?
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?