Advance your career with help from our practice exams

Instrumentation: FIRST PERIOD

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

In a simple circuit, if E=4 V and R=2 ohms, what is the current of the circuit?
(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, prior to any work, the administrative procedures to be in place?
"A valve that has a low pressure drop at high flow rates.", is the best description of which of the terms below?
If it were required to provide a regulated output that was at a lower set value, which device below would be used?
What is the main purpose of valve positioners?
Certain categories of tubing has specific applications in industry. Which of the categories below would be used in applications where no internal pressures need to be tolerated?
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.
(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?
Convert 0.625 to a fraction.
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "N" represent?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
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 flame-proof enclosure?
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.
"A whole number and a fraction combined into one number", is a description of which type of fraction?
"Increased flow rates occur at the end of the valve stroke, with low flow rates at the initial opening of the valve." is the best description of which of the terms below?
The volume of a cylinder is calculated with which correct equation?
There are subgroups of fuel for fires need to burn. Which of those subgroups would LPGs belong?
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 best described by the following statement, "Defines the direction of current flow in an electrical circuit."?
convert 4 ⁴⁄₁₁ to an improper fraction.
If the total error is 1.7 and the dead band error is is 0.5, what is the hysteresis value?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "V₁n₂=V₂n₁"?
State the number 236.478 x 10¹¹ using scientific notation and round the answers to three significant digits.
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 7 cm diameter filled with gas?
When selecting a hammer to use, what would "weight of head" help determine?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
In a simple circuit, if E=6 V and R=5 ohms, what is the current of the circuit?
The following statement is the best description of which of the terms below, "The electric dynamic that sustains the charge difference in a circuit."?
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?
"Is the side next to the angle of significance." is a description of which right angle triangle mathematical term?
In the SI system of measurements, there are several symbols used for magnetism. Which of the measurement units below would represent "relative permeability"?
"Is the change in velocity divided by the elapsed time for the change to be completed." is the description of which mathematical term?
Isolate the following equation for "v": d=vt
Which type of valve is pictured below?
"An adjustment that progressively increases or decreases reading over the scale, but does not change the base point" is the definition of which adjustment?
(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?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed medical air system?
From the information given in the diagram below, what is the voltage drop over R2, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the the responsibilities of those associated with the work site?
From the information given in the diagram below, what is the voltage drop over R4, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
Stress affects metals in several different ways. Which of the answers below would best be described as the permanent deformation at a slow rate?
7 coulombs of charge require how many electrons?
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 0-9 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
OH&S recognizes that there are a number of hazards on any jobsite. Which of the answers below best represents the number of broad categories that it has grouped those hazards into?
Around most construction tasks, eye protection is important. The selection of eye protection will rest mainly with which of the following answers? Choose the best one that applies.
The desiccant head adsorbes water vapour due to which?
True force balance negative feedback system consists of:
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
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 0-14 meters. What is the fluid level if the transmitter signal is 35 kPa
The two main functions of a negative feedback system are:
8 coulomb of charge requires how many electrons?
There are several different notations on a length of pipe. Which of the notations below would have the thickest pipe wall?
The best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
A battery has a rating of 80Ah, this means it can supply
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an iron core is more preferable than an air one.
Which of the valves below would be used for isolation on each side of a control valve?
Calculate the relative density for a fluid that has a density of 748 kg/m³
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "that at the same temperature and pressure, equal volumes of all gases contain the same number of molecules."?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "7"?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
Which of the terms below is best described by the statement, "Current flows from the positive terminal to the negative"?
(310102g) Energy is lost due to undesirable resistance in any circuit. Which of the terms below refers to the power that is lost in a conductor during the transmission phase?
(310103f) Strain type gauges are commonly found in industry. Which of the arrangements below would be used to compensate for temperature effects?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "3" in the picture below?
The inert purge gases for GMAW and GTAW welding processes are non-toxic, but are still dangerous. In what situation below would these gases be a danger?
"Is done when a force that is applied to an object and moves that object." is a description of which mathematical term?
(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?
Covert 34.5 kPa to psi.
A mass of 6 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
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
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of increasing hardness, but a reduction in ductility?
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."
A moment balance negative feedback system is a force balance system?
If a closed tank is pressurized to 101.345 kPa and the pressure gauge at the bottom of the tank reads 130.456 kPa, what head (in feet) of a liquid with a R.D. of 0.45 is contained in the tank
From the information given in the diagram below, what is the total current if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would intrinsically safe equipment be primary used?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would generally not be used to protect current electronic instrumentation?
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."?
1 pound mass is equal to?
(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?
65% of 765 is equal to?
Matter that is composed of more than one type of atom is called?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type L tube type typically have?
There are a variety of circuit symbols used in electrical designs. Which of the terms is most commonly associated with the symbol below?
All pipe in a piping system can be grouped into two categories. Which of the answers below best represents those categories?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Ethylene belong to?
A moment balance negative feedback system is a motion balance system?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used with a pressurized enclosure that contains equipment which is capable of ignition?
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for receiving an output signal and converting that into a PV value?
(310105i) Any solid has inherent properties associated with it. Which of the terms below would best represent the final amount of stretch or elongation that the material undergoes during tensile testing?
(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?
60% of 54 is what?
From the information given in the diagram below, what is the current flowing on branch R3?
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.
(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?
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a 2.5 mm minimum water gauge flow to be maintained?
State 3 ⅞ as a mixed fraction.
The intensity of sound is measured in dBA. In the workplace the suggested dBA level for wearing hearing protection over an 8 hour day would be which of the below?
"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?