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Instrumentation: FIRST PERIOD

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

(310104d) There are several features available on valve positioners in industry today. Which of the features below can be best described as one that uses negative feedback in it's operation?
An I/P transducer is a positioner.
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "A"?
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?
Newton's second law is also known as?
(310103f) Strain type gauges are commonly found in industry. Which of the gauges below is known to be non-linear?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop over R3?
A car traveling west has an initial speed of zero, and accelerates at a rate of 4 m/s² for 6 seconds. What is the displacement of the car?
Which type of valve is pictured below?
(310105i) Any solid has inherent properties associated with it. Which of the properties below would be measured as a result of a tensile test on it??
"A particular material or class of materials, that is a hazardous substance in workplace air, has an upper limit on the acceptable concentrations." This statement best describes which of the following answers?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for combustible material?
What power of soldering station is used for electronic soldering?
If a closed tank is pressurized to 103.345 kPa and the pressure gauge at the bottom of the tank reads 145.456 kPa, what head (in feet) of a liquid with a R.D. of 0.37 is contained in the tank?
There are numerous types and styles of valves in industry. Which of the actuators below best represents the following picture?
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?
In a simple circuit, if I= 4 A and R=2 ohms, what is the voltage drop over the resistor of the circuit?
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
Convert ⁸⁄₁₉ to a decimal.
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
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?
Having to convert between SI and USCS measurements is commonplace in industry today. Which of the answers below is the correct conversion for 65 lbm?
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 at the open end of a process pipe?
If a battery has a rating of 75 Ah, theoretically it could provide 6.8 A for how long?
What is the area of a rectangles with sides measuring 15.5 cm, and 12.6 cm?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
(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?
There are several varieties of manufactured resistors. Which of the answers below is generally regarded as the most common resistor?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
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?
Stress affects metals in several different ways. Which of the answers below would best be described as the permanent deformation at a slow rate?
(310105i) In a common stress diagram, there are several points that are noted. Which of the points below would best be described as a change in shape of a material at low stress that is recoverable after the stress is removed?
Lifting a load with rigging is an involved and potentially dangerous task. When working with slings, which of the angles below is the commonly used safe lifting angle?
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be use "J" as it's unit of measurement?
"The relationship between valve position and flow in the in an operational process system.", is the best description of which term below?
A fire is burning in a pile of weathered, oily blankets. Which of the following extinguishers should you use to fight this fire?
"2+(9+7)=(2+9)+7" is an example of which mathematical law?
The Alberta AIT Board has many responsibilities. Which of the answers below represents the Boards main responsibility?
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?
The ISA has defined 3 types of installations for purge/pressurization for hazardous applications. Which of the types below would an enclosures classification be reduced from Class I, Zone 1 to non-hazardous?
All objects have mass which is affected by gravity. Which of the answers below represents the USCS approximate value for acceleration due to gravity?
What is the formula that the pneumatic relays amplification or gain is expressed by?
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
State ⁶⁵⁄₁₄ as a mixed fraction.
In industry, electrostatic hazards are very important to understand. Which of the terms below is best described as a swift discharge of electric current between two objects with different charges and different numbers of electrons?
Moment balance Negative feedback system consists of:
If you have 40 hammers and 50 chisels, what is your ratio of hammers to chisels?
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?
When 20 C passes by a point in a wire in 12 seconds, what is the current in amperes?
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?
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?
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to certification markings
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?
Convert 0.125 to a fraction.
From the following answers, choose the best one that represents the radiant energy hazard produced by Non-destructive testing.
All objects have mass which is affected by gravity. Which of the answers below represents the SI approximate value for acceleration due to gravity?
In what kind of circuit would all of the applied voltage appear across an open circuit?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a loading element?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a single ferrule style fitting?
In a simple circuit, if I= 3 A and R=5 ohms, what is the voltage drop over the resistor of the 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?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area where combustible dust, rather than gases or liquids, may be present in varying hazardous concentration?
What is the SI unit of force?
In the fraction A/b, is A the denominator?
The perimeter of a square is calculated with which correct equation?
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.
Calculate 4/7 + 2/5, and state answer as a proper or mixed fraction
Of the list below, what is the standard unit of quantity of electricity in the International System of Units (SI)?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "2"?
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?
(310101c) There are a wide variety of tubing fitting types. Which of the fittings below would best be used when terminating tube connections?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosure needs do be reduced from a Class I, Zone 1 to a Class I, Zone 2?
State the number 4.785 x 10 ⁻⁵ using decimal notation and round the answers to three significant digits.
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the least common of those methods?
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for less than 10 hours a year?
(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?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "7"?
Magnets have been classified into two distinct groups. Which of the answers below is best described as an electromagnet which only retains magnetism when an electrical current is running through it?
An extraction hood attached to a system of flexible ductwork would be an example of which of the answers below? Use the options below to choose the best answer.
(310104b) Some valves require specialized components. Which of the components below would best be used to eliminate "end play".
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?
14.696 psia is equal to?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a medical gas system?
Calculate ¾ x ⅚, and state answer as a proper or mixed fraction
There are subgroups of fuel for fires need to burn. Which of those subgroups would NGLs belong?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the Imperial relative temperature scale?
Convert the following quantities to the units asked for: 4572 cm to yards.
Oxygen is a vital component of the combustion process. Which of the answers below best describes the effects of combustion if an amount of gas and oxygen are equal in volume?
(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 4 tubes together?
The CEC has classified hazardous areas by a specific set of terms. Which of the answers below contains those terms in the correct order?
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?
There are several different ways to apply force to an actuator. Which one of the methods below would use a solenoid for operation?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe a thread with a 16 TPI?
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?
The desiccant head adsorbes water vapour due to which?
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be equal to "J" as a of measurement?
Newton's third law is also known as?
In a simple circuit, if E=6 V and R=5 ohms, what is the current of the circuit?