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Instrumentation: FIRST PERIOD

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

What pressure does a column of liquid exert with a density of 56.7 lbs per cubic foot and a height of 54 inches
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with immediate and serious toxic effects?
Convert the following quantities to the units asked for: 1.75 hours to minutes.
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 "i" equipment can withstand?
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a compressed air system?
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?
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.
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the thorough, precise safety details for government agencies?
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?
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?
There are several different notations on a length of pipe. Which of the notations below would have the thinnest pipe wall?
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
What does the term "Cv" represent in calculating pressure drop?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve coating the iron tip with a small amount of solder?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
In a simple circuit, if I= 5 A and R=4 ohms, what is the voltage drop over the resistor of the circuit?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a loading element?
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 visual indicator only?
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?
Calculate the gain when a change from 1.25 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 15 psig in the relay output occurs.
"The quantity of motion of a moving body, measured as a product of its mass and velocity," is the description of which mathematical term?
(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?
(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?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
There are several varieties of manufactured resistors. Which of the answers below is constructed with a glass core?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
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?
"This type of respirator has two different types that are available. These are continuous flow, and pressure demand respirators. " This statement best describes which of the following respirators?
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
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?
State the number 0.004675 using scientific notation and round the answers to three significant digits.
(310102m) The relationship between resistors, capacitors and time intervals is an interdependent one. Which of the answers below would be the voltage across a steady state capacitor after 1 tau of it discharging?
If angle "Y" is equal to 28 degrees, solve for angle "X"
True force balance negative feedback system consists of:
If, for every 12 C of charge, 50 J of energy is available, what is the voltage?
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?
Convert 0.875 to a fraction.
Use the answers below to fill in the blanks of the following sentence. "The _____ of the plates in a capacitor is _______ to it's capacitance."
If a closed tank is pressurized to 125.345 kPa and the pressure gauge at the bottom of the tank reads 186.456 kPa, what head (in feet) of a liquid with a R.D. of 0.05 is contained in the tan
An instrument technician sometimes has to do calibrations while the process is still running. Which of the terms below identifies a calibration done on a live process?
The prefix "Milli" can be expressed as?
(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 offset and one pipe connector?
(310101c) Although soldered fittings for tube can be used on pressure and DWV applications, there are some differences between the fittings. Which of the answers below describes one of the major differences that the DWV fittings have when compared to pressure fittings??
What percentage of 35 is 21?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a glass core?
Reduce and state answer as a proper or mixed fraction: ¹²⁄₄₈.
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?
"An electric circuit in which the electric passes through each circuit element in order." is the best description for which of the terms below?
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?
A moment balance negative feedback system is a motion balance system?
"Is a triangle with two congruent sides and congruent base angles." is a description of which mathematical term?
When making an angularity adjustment, what is the first adjustment made?
"This workplace hazard consists of substances, mixtures and materials that can be classified according to their health risks and dangers." This statement best describes which of the following hazard groups?
Solve for the missing angle.
The supplier label:
From the information given in the diagram below, what is the voltage across each resistor?
"Control devices that use the fluid medium that they control to obtain their energy" is a description of what?
"This piece of legislation came into effect in 1915. This act deals primarily with compensation, medical aid and rehabilitation of a worker due to a job-related injury." Which of the answers below is best described by this statement?
(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?
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?
(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?
(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 be leak-proof at any temperature or pressure
Calculate the force, in newtons, which is developed to a circular diaphragm with a diameter of 75 cm, when a a pressure of 56 kPa is applied:
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?
A _________ has the air connection usually above the diaphragm
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?
Reduce and state answer as a proper or mixed fraction: ³⁴⁰⁄₁₆.
Which are the two major categories of pressure regulators?
Batteries come in two common varieties. Which of the terms below can relate best to a rechargeable cell?
If a battery has a rating of 75 Ah, theoretically it could provide 6.8 A for how long?
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"?
To move 175 C across two points. when the voltage is 30 V, how much energy is required?
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 general purpose?
When dealing with servicing or maintaining of valves, there are some terms that need to be understood. Which of the terms below is best described as a mechanical device that physically prevents the transmission or release of energy?
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "a localized electric current induced in a conductor by a varying magnetic field."?
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?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
"Can handle pressures more accurately and can handle higher pressures" are two advantages of using which regulator?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁T₂=P₂T₁"?
"The range through which an input can be varied in reverse without initiating an observable response" is the best description of which term?
34.450 in engineering notion is what?
(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?
Loss of pressure is a by product of several factors in a piping system. If the length of a straight section of pipe was shortened by half, which of the answers below would be the result?
Two pieces of eye protection should be used together when grinding or chipping. Choose the best answer from the selection below.
A _________ has the air connection usually under of the diaphragm.
(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 circuits that are isolated?
(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 3 tubes together?
"A flow characteristic that provides maximum change in flow rate at initial valve stroke opening." is the best description of which of the terms below?
(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 "R"?
The symbol for a voltage source is which of the below?
If a pressure change of 20 kPa to 80 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 2.7 cm and the effective area of the diaphragm is 0.08 m^2
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the minimum safety standard set for workers?
Many electrical properties have specific symbols attached to them. Which of the symbols below would be the correct for inductance?
Pick the answer that will fill the blank. "_______ of the voltage would appear across the open circuit in a ______ circuit."
(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?
To preform a "Span" adjustment the order of the step(s) is/are?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "B"?
In the fraction A/B. is B the numerator?
Convert 0.500 to a fraction.