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Instrumentation: FIRST PERIOD

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

When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described as a measure of how much matter is in an object?
Modification of certain safety enclosures by mechanical means is allowed in certain conditions. Which of the answers below would describe the conditions is required for modification to a flame-proof enclosure?
"Is the measure of the amount of space inside of a solid figure, like a cube, ball, cylinder or pyramid." is the description of which mathematical term?
"At any junction in an electrical circuit, the sum of currents flowing in equal to the sum of currents flowing out ." This statement is the best description of which of the electrical laws below?
A mass of 7 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to depth." is one of the principles of which answer below?
"Having only magnitude, not direction, such as distance", is a description of which mathematical 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."
If a pressure change of 20 kPa to 60 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 7.5 cm and the effective area of the diaphragm is 0.09 m^2
When 150 C passes by a point in a wire in 6 seconds, what is the current in amperes?
If, for every 20 C of charge, 80 J of energy is available, what is the voltage?
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?
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?
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "Newtons"?
The point when increasing current will not increases magnetism in an electromagnet is call?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "5"?
State ⁸⁴⁵⁶⁄₂₄₃ as a mixed fraction.
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a glass core?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "A"?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed air system?
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?
convert 4 ⁴⁄₁₁ to an improper fraction.
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."?
A parallel circuit reacts in specific ways to the addition of a resistive load. Which of the answers below best describes the reaction to an decrease in resistive load?
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 0-15.5 meters. What is the fluid level if the transmitter signal is 78 kPa
With a direct acting actuator, as air pressure increases:
(310105i) Physics has may "laws" that can be applied in industry. Which of the "laws" below would relate best to the strain of a material is proportional to the stress applied
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?
There are several terms that are used specifically with flammable gases and liquids. Which of the terms below is best described as the temperature at which a particular organic compound gives off sufficient vapor to ignite in air?
Of the answers below, which one is a disadvantage of a Pinch valve?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "5" in the picture below?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 145 kPag?
Convert ⅘ to a decimal.
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?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate gravitational potential energy?
There are several parts to a drill bit. Which of the terms below best represents the part of a drill bit that is used to cut into materials?
"The range through which an input can be varied in reverse without initiating an observable response" is the best description of which term?
(310104a) There are numerous components to a valve. Which of the components below would best be referred to as a gland that seals the dynamic portion of the valve against leakage?
In the WHMIS system, "Other poisons" is represented by which hazard class? Choose from the following answers.
There are numerous types and styles of valves in industry. Which of the actuators below best represents the following picture?
Chart recorders have a couple of specific applications. Which application below would best describe the charting of results from a flow rate close to an orifice plate?
"The law that the algebraic sum of the products of the current and resistance in the conductors forming a closed loop in a network is equal to the algebraic sum of the electromotive forces in the loop." This statement is the best description of which electrical law below?
There are some options when deciding to lower the classification of a hazardous atmosphere within an enclosure. Which of the methods below would be the best method for the removal of a hazardous gas?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be moderately sensitive to pressure changes?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁T₂=P₂V₂T₁"?
"An electric circuit in which the normal path of current has been interrupted." is the best description of which of the terms below?
If a closed tank is pressurized to 111.345 kPa and the pressure gauge at the bottom of the tank reads 160.456 kPa, what head (in feet) of a liquid with a R.D. of 0.38 is contained in the tan
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?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with other toxic effects?
Which organization sets standards for boots and safety glasses in Canada?
When wire rope is used for lifting purposes, there are several safety factors involved. Which of the answers below best represents the safety factor for rigging in general?
In the WHMIS system, "Oxidizing material" is represented by which hazard class? Choose from the following answers.
Calculate the gain when a change from 0.85 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 18 psig in the relay output occurs.
Which type of pilot valve has one supply connection and two output connections?
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 3-15 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "A"?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
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?
In the WHMIS system, "Compressed gas" is represented by which hazard class? Choose from the following answers.
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
If tool crib attendant has 8 boxes of fittings, and one person takes 1 3/4 boxes, and another person takes 3 4/5 boxes, and another person brings back 2 1/4 boxes, how many boxes remain?
What percentage of 35 is 21?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
(310105i) Any solid has inherent properties associated with it. Which of the properties below would be referred to as the ability to accept or resist an external force trying to deform it?
A worker is grinding 6m away from another worker refueling a diesel welder. Is there any workplace infraction occurring in this situation? Choose the best answer below for answering this.
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?
746 Watts is equal to which of the terms below?
Convert the following quantities to the units asked for: 1.75 hours to minutes.
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?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a pressure sensing diaphragm in the creation of an output signal?
In the SI system, the unit for length is?
For every gas law there is a corresponding equation. Which of the gas laws below is missing from the Combined Gas Law?
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
What pressure is exerted at the base of a tank that is 6.7 meters high, with a liquid that has a density of 1200 kg/m³?
In the WHMIS system, this symbol represents 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 creation of two equal ranges from standard range?
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?
An I/P transducer is a positioner.
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
Class I, Zone 1 locations can use i, ia and ib intrinsically safe equipment. Which of the answers below correctly identifies the number of faults that the "ia" equipment can withstand?
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a field device that has a maximum of 1.2 volts it can develop or contain?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
In relation to hacksaws, "pitch" is referred to as?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the relationship between the volume and temperature in a fixed mass of gas."?
The trigonometric ratio of cosine is calculated with which mathematical equation?
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 tube straightening out is a direct result of the pressure acting inside the tube" is the principle of operation of which pressure to force converter?
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 257 °F in °C?
From the information given in the diagram below, what is the current flowing on branch R3?
What is the purpose of the PTC switch in a lithium battery?
What item would be used on a pneumatic system to speed up the pneumatic signal?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would use materials that were resistant to corrosion in it's construction?
"To cause the valve to close, an increase in air pressure to the actuator is required" is the definition of?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, isolating all sources of energy to the work area would be which of the steps below?
(310104b)There are many different valves to be used for different processes. Which of the valves below would best be used in a high pressure process?
With a reverse acting actuator, as the pressure increases:
There are several different types of drills tools used in industry. Which of the drills below would be best used for exacting work, hole no bigger than a ½" in diameter?
"This workplace hazard consists of organisms or organic matters produced by these organisms that are harmful to human health." This statement best describes which of the hazards below?
The trigonometric ratio of sine is calculated with which mathematical equation?
Many electrical properties are a measured quantity, needing a unit of measurement. Which of the units below would be the correct unit of measurement for inductance?