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Instrumentation: FIRST PERIOD

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

Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 1 MPag?
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?
A vacuum gauge indicates a pressure of 15" Hg. What will the pressure be , in kPaa, if the atmospheric pressure is 13.9 psia?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a medical gas system?
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?
The ratio 3.4:2.5 equal to?
(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 it with a smaller one in a simple circuit?
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
If field servicing, or removing, a control valve from a piping system it is important to recognize the piping isolations. Which of the isolations below correctly identifies the following picture?
Linear motion negative feedback system consists of:
(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?
Express ³²⁄₄₄ as a percent.
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?
Solve for the hypotenuse.
"The results of a devices inelastic quality" is a definition of which term?
(310105d) Hp is a common term seen to rate power. Which of the answers below reflects the amount of work done in 15 mins by a 45 hp motor?
The use of process seals is required in some applications. Which one of the terms below is best described as a seal that has contacts the process?
In the fraction A/b, is A the denominator?
In the WHMIS system, "Acute poisons" is represented by which hazard class? Choose from the following answers.
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the period while the capacitor gets to 5τ?
In the WHMIS system, "Oxidizing material" is represented by which hazard class? Choose from the following answers.
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for converting a measured PV into an output signal?
There are two different classification of magnets. Which of the items below would be considered a permanent magnet?
The common methods for classifying pipe is by NPS and DN. Which of the answers below are these methods used for the classification of piping?
"A proportion of a whole expressed as a number between 0 and 100 rather than as a fraction."
(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?
14.696 psia is equal to?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 212 °F?
There are several definitions used frequently in the CEC. "Limitation of current and voltage in the circuit prevents excessive heat and the formation of ignitable sparks" would best describe which of the answers below?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious material with other toxic effects?
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 "A method that attempts to physically separate or isolate the electrical parts or hot surfaces from the explosive mixture."?
It is a good trade practice to transport gas cylinders secured and upright. From which act below did this practice come from?
What is the absolute pressure of a vessel given a barometric pressure of 78 kPa and a gauge reading of 90 kPa
Tubing has many distinctive applications in industry. Which of the associations below provides the standards commonly used for tubing in instrumentation?
Alloy steels are very common in industry. Which of the types of alloy steel would "Martensitic" piping be?
Convert 0.625 to a fraction.
What is the pressure generated by a mass of 5 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most common?
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?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the current of the circuit?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of removing oxides and sulfides as well as refining the grain of the steel?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "2" in the picture below?
In the SI system, the unit for time is?
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."?
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??
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as the difference between the highest and lowest error values
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
There are only a few parts to a capacitor. Which of the following terms best describes the insulator between two plates of a capacitor?
Although there are numerous type of batteries, they all share a common construction. Which of the answers below contains all the required parts of a battery?
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.
In relation to hacksaws, "pitch" is referred to as?
State the number 789342.61 using decimal notation and round the answers to three significant digits.
If there was a need to provide a regulated output pressure with no distrubances from varying inlet and downstream pressures, which of the devices below would be used?
(310103d) There are several different designs of regulator. Which of the loading element designs below would have to slowest response to changes in downstream pressures?
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?
CSA approved head, eye, and foot protection is required for all workers. This is best legislated by which of the following acts?
Convert ¹⁸⁄₅ to a decimal.
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 distance from the crest of one thread to another crest measured along the length of the thread?
(310104d) A control valve is one of many FCEs that are used in industry. Which of the answers below reflects the relationship between a control valve and the process variable?
there are numerous pieces of rigging equipment. Which of the answers below correctly identifies the item in the picture that follows?
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is the power delivered by the battery?
A "wheel and axle" is an example of which type of machine?
The CEC has classified hazardous areas by a specific set of terms. Which of the answers below contains those terms in the correct order?
Newton's third law is also known as?
"Having only magnitude, not direction, such as speed", is a description of which mathematical term?
Loss of pressure is a by product of several factors in a piping system. If the length of a straight section of pipe was shortened by half, which of the answers below would be the result?
Covert 6 ¹¹⁄₁₃ to an improper fraction.
What is the formula to calculate Hydrostatic peressure
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?
There are two very common types of metric vernier calipers. If the caliper that you are using has 0.5mm graduations on the beam, which of the answers below represents the graduations required on the Vernier scale?
"Is the rate of doing work, it is the amount of energy consumed per unit time", is the description of which mathematical term?
"Is the quantity that expresses the extent of an enclosure of a two-dimensional figure or shape." is the description of which mathematical term?
"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?
"Which of the electrical terms below can be best described as "consisting of one or more electrochemical cells, which transform stored chemical energy directly into electrical energy."
(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?
(310105i) The reaction a solid has to an external force that is applied to it can be measured. Which of the units below corresponds to "Strain" measurement?
"A characteristic where flow capacity increases linearly with valve travel. Flow is directly proportional to valve travel." is the best description of which of the terms below?
A lithium cell can produce about _____ times the voltage of an alkaline cell.
All objects have mass which is affected by gravity. Which of the answers below represents the SI approximate value for acceleration due to gravity?
"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?
Using the Pythagorean Theorem solves for which mathematical term?
Solve for x: 45-200÷10=x
Occupational exposure limits have threshold limits. There are three of these threshold limits that are used, of the answers provided, which is not a value used?
In the WHIMIS system, the workplace labels must display 3 pieces of information. Of the answers provided, choose the one that is not needed.
(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??
A capacitor discharges it's voltage at a specific rate. How many tau are required for a capacitor to expend 99% of it's original voltage?
(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?
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?
Which of the terms below is the best definition by the statement, "An electric current in which the flow reverses consistently."?
"An adjustment that, without affecting the base point, changes the shape of the curve" is the definition of which adjustment?
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?
"A hollow cylindrical trim element that is sometimes used as a guide to align the movement of a valve plug with a seat ring." is the best description of which of the terms below?
A _________ has the air connection usually above the diaphragm
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
Calculate ⁶⁄₇ ÷ ⁴⁄₅, and state answer as a proper or mixed fraction
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would explosion-proof equipment be primary used?
(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?
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?
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?
There are several different notations on a length of pipe. Which of the notations below would have the largest pipe diameter?