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Instrumentation: FIRST PERIOD

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

A multi-wheel cutter is used when
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
101.325 kPa is equal to?
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?
State the number 40.021 x 10⁻¹ using decimal notation and round the answers to three significant digits.
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 transporting workers?
(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 installation of cathodic protection?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of yellow represent?
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described as a measurement that compares the amount of matter an object has to compared its volume.
If, for every 15 C of charge, 45 J of energy is available, what is the voltage?
65% of 765 is equal to?
What provides the seal on the valve stem to prevent leakage of the process?
Soldering is a common method of joining metals. To be effective the which of the items below must have a lower melting point than the parent metals?
The 3 key elements of the WHIMIS system are, material safety data sheets, labels and ________. Choose from the answers below to fill in the blank.
State the number 236.478 x 10¹¹ using scientific notation and round the answers to three significant digits.
When an atom gains an electron, it is commonly referred to as which of the below?
Express ³²⁄₄₄ as a percent.
A _________ has the air connection usually above the diaphragm
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 many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of refining the grain of the steel to allow for greater resistance to corrosion and temperature extremes?
The symbol for a voltage source is which of the below?
From the information given in the diagram below, what is the voltage across each resistor?
Solve for the hypotenuse.
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."
(310105d) When dealing with displacement, there are two qualifiers used. Which of the answers below would be a quantity that is fully described by a numerical value alone?
Using the Pythagorean Theorem solves for which mathematical term?
(310102m) There are numerous electrical devices in a circuit. Which of the devices below can be best described as a passive two-terminal component used to store and release electrical energy?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of increasing erosion and wearing down resistance?
Express 60% as a reduced fraction.
Chart recorders still have a place in industry for specific applications. Which of the applications below would be used to fulfill ABSA requirements?
Convert 14 "Hg to kPa(a). Barometer is 18.6 psi
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 as having a blind and a spacer together in one assembly?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
The ability of a material to concentrate magnetic lines of force within a material is called?
The trigonometric ratio of sine is calculated with which mathematical equation?
What is the main purpose of valve positioners?
What is the absolute pressure of a vessel given a barometric pressure of 78 kPa and a gauge reading of 90 kPa
CSA approved head, eye, and foot protection is required for all workers. This is best legislated by which of the following acts?
1 pound mass is equal to?
There are several broad categories of tubing applications. Which of the categories below would steel tube be most commonly used for?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "6" in the picture 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?
There are 3 major components to a zener intrinsically safe barrier. Which of the answers below would be best describe the component that limits the current?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
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 a simple circuit, if E=4 V and R=2 ohms, what is the current of the circuit?
With a direct acting actuator, as air pressure increases:
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "5"?
"Having only magnitude, not direction, such as distance", is a description of which mathematical term?
(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?
"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."
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most able to discharge loads at high rates for an extended period of time?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the methods below would be best to run cable to location?
In the fraction A/B. is B the numerator?
In the WHMIS system, the two types of labels that are the most commonly used are? Use the answers provided.
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as equipment or circuits that are tested under fault situations?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type M tube type typically have?
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?
there are numerous pieces of rigging equipment. Which of the answers below correctly identifies the item in the picture that follows?
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?
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
(310102m) The charging and discharging of a capacitor is a mathematical relationship. In the equation, τ=R x C, which of the answers below would best refer to the "C"?
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
The trigonometric ratio of cosine is calculated with which mathematical equation?
There are subgroups of fuel for fires need to burn. Which of those subgroups would sulfur belong to?
(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 several different types of layout tools used in industry. Which of the tools below best represents the following picture?
"Is the change in velocity divided by the elapsed time for the change to be completed." is the description of which mathematical term?
"A triangle in which all three sides are equal." is a description of which mathematical term?
In a baffle-nozzle-restrictor motion detector the:
A column of water at 4C, 6.5 meters in height exerts what amount of pressure?
The result of a _______ actuator is installed with a ________ valve will be normally closed, fail open
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below would best be described as,"the measure of the intensity of the force imposed on this object by the local gravitational field"?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
Convert ⁸⁄₁₉ to a decimal.
In Unified National nomenclature what does the "12" represent in this bolt class- 1/2-12-UNC 2B
(310104b) Some valves require specialized components. Which of the components below would best be used to eliminate "end play".
"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?
In the contract of apprenticeship, there are several responsibilities that all parties have. Which of the parties below would have the responsibility to permit the apprentice to register and attend technical training?
There are many different types and styles of tubing in industry, but they can all be grouped into categories. Which of the answers below best represents all of the categories of tubing?
There are several types of soldering irons that are available in industry. Which type of soldering iron below would be used for speedy repairs where electrical power is restricted or unavailable?
The MSDS for each controlled product must be:
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
Which are the two major categories of pressure regulators?
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?
In the SI system, the unit used for mass is?
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?
Reduce ¹²⁄₆₀ and state as a proper or mixed fraction.
When higher operating pressures are used, this type of actuator produces higher thrust than diaphragm actuators.
From the information given in the diagram below, what is the total resistance if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
(310104a) The valve body contains some of the vital components in a valve. Which of the components below would be responsible for a valves flow characteristic?
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the outlet airflow rate be measured for purging times?
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 increase in resistive load?
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 a Class I, Zone 2?
Convert the following quantities to the units asked for: 4572 cm to yards.
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
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 sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "2"?