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Instrumentation: FIRST PERIOD

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

(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would have two tube ends in line and one pipe connector?
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?
(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 conductor type and use?
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
"An electric circuit in which the normal path of current has been interrupted." is the best description of which of the terms below?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the answers below would be best describe a major difference between cable tray and metal conduit?
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?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
From the information given in the diagram below, what is the current flowing on branch R1?
Calculate the density of a substance that has a mass of 9.8 kg and is contained in a space that has a volume of 0.00756 m³
Calculate the relative density for a liquid whose density is =743.2 kg/m³.
What pressure is exerted at the base of a tank 6.5 meters high when filled with a liquid with a density of 1200kg/m³?
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 R2?
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.
(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?
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "Newtons"?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate gravitational potential energy?
(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 larger one in a simple circuit?
There are a number of factors determining the resistance to current of a material. Which one of the terms below would be best described as "A greater amount of free electrons reside in a conductor of greater diameter per linear unit."
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as electrical/electronic circuitry that is incapable, under normal operating conditions, of causing ignition of a specified flammable gas-air, or vapor-air,mixture?
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?
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?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
When selecting a valve for a piping system, several factors must be considered. Which of the terms below can be correctly described by the statement, "Constitutes the pressure differential generated between two defined points through various ares of loss."
The area of a circle is calculated with which correct equation?
1 mechanical, or imperial, horsepower is equal to which of the below?
Pick the answer that will fill the blank. "_______ of the voltage would appear across the open circuit in a ______ circuit."
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of traps dissolved oxygen and enhancing casting characteristics?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type DWV tube type typically have?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a fixed restrictor as well as a feedback bellows in the creation of an output pressure signal?
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?
The following statement is the best description of which of the terms below, "The electric dynamic that sustains the charge difference in a circuit."?
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?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 3 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 grounding of transformer circuits for instruments?
If a closed tank is pressurized to 14 psig and the pressure gauge at the bottom of the tank reads 30 psig, what head (in meters) of a liquid with a R.D. of 0.87 is contained in the tank
(310104b) Valve disassembling is a fundamental part of the Instrumentation trade. Which of the hazards below would be of primary importance to eliminate when disassembling a sliding stem actuator?
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to ignition temperatures?
To move 75 C across two points. when the voltage is 10 V, how much energy is required?
What are the 2 major parts of a control valve?
When servicing or troubleshooting a valve there are several terms that are used for specific actions. Which of terms below would be associated with the verification an individual isolation?
The perimeter of a Triangle is calculated with which correct equation?
A mass of 6 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
State the number 479.3 using engineering notation and round the answers to three significant digits.
A _________ has the air connection usually under of the diaphragm.
Convert 88 PSI to kPa
14.696 psia is equal to?
"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?
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below relates best to the plotting of a capacitor that is alternately charging and discharging?
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for more than 1000 hours a year?
Convert 175 psi to mmW.C. Barometer is 99.6 kPa(a)
Calculate ¾ x ⅚, and state answer as a proper or mixed fraction
In what kind of circuit would all of the applied voltage appear across an open circuit?
Newton's second law is also known as?
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described an interaction that causes an affected object to This results in an alteration to the state of the object's momentum?
If a battery has a rating of 120 Ah, theoretically it could provide 12 A for how long?
Isolate for "v" in the following equation: d=vt
Batteries come in two common varieties. Which of the terms below can relate best to a non-rechargeable cell?
What power of soldering station is used for electronic soldering?
Before working on a task, you notice that a trench with vertical rebar ends is directly under the work location. Harnesses and anchor points are provided at the task location by the employer, which you are instructed to use. The piece of legislation that best covers the action of the employer is which of the below?
A vacuum gauge indicates a pressure of 15" Hg. What will the pressure be , in kPaa, if the atmospheric pressure is 13.9 psia?
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Work" use as it's unit of measurement?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
There are two different classification of magnets. Which of the items below would be considered a permanent magnet?
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"?
"Having only magnitude, not direction, such as speed", is a description of which mathematical term?
To keep your back healthy, there are several steps in lifting objects. Of the following, choose the one that would not apply.
The trigonometric ratio of cosine is calculated with which mathematical equation?
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?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type K tube type typically have?
The volume of a sphere is calculated with which correct equation?
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a low purge gas pressure audible alarm and fuse only?
In the fraction A/B, is B the denominator?
"The production of an electromotive force in one circuit by a change in current in a separate circuit." is the best description of which of the terms below?
1 psi is equal to _____ kPa
(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 require constant replacement?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
When 125 C passes by a point in a wire in 8 seconds, what is the current in amperes?
"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?
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for more than 10, but less than 1000 hours a year?
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
A 15 kg wagon is moving west with a speed of 3 m/s. Determine it's momentum.
What is the density of water?
The CEC generates a dust grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would metallic, hazardous dust belong to?
If a tool increases from $43 to $76, what is the percentage increase?
Interpretation and use of correct installation standards is vital to the success of an instrument technician. Which of the associations below have set out the standards that must be followed?
"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?
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?
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 only a few parts to a capacitor. Which of the following terms best describes the insulator between two plates of a capacitor?
What item would be used on a pneumatic system to speed up the pneumatic signal?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a restricting element?
"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."
Convert ⅘ to a decimal.
"The results of a devices inelastic quality" is a definition of which term?
(310105d) The amount of power an applied force uses is a measurable quantity. Which of the units below would be equal to 1 hp of power?
"Having only magnitude, not direction, such as distance", is a description of which mathematical term?
There are subgroups of fuel for fires need to burn. Which of those subgroups would LPGs belong?
60% of 54 is what?