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Instrumentation: FIRST PERIOD

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

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?
"A valve that has a low pressure drop at high flow rates.", is the best description of which of the terms below?
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?
Gasses react to the increase or decrease of pressure in measurable ways. Which of the terms below describes the reaction of an enclosed gas to a pressure increase?
There are several different ways to apply force to an actuator. Which one of the methods below would a pneumatic source of air not be required for operation?
A 15 kg wagon is moving west with a speed of 3 m/s. Determine it's momentum.
The circumference of a circle is calculated with which correct equation?
To move 175 C across two points. when the voltage is 30 V, how much energy is required?
In the fraction A/B. is B the numerator?
A mass of 6 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
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
The volume of a sphere is calculated with which correct equation?
If field servicing, or removing, a control valve from a piping system it is important to recognize the piping isolations. Which of the isolations below correctly identifies the following picture?
"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?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would positively pressurized equipment be primary used?
How is the term "Cv" calculated?
A mass of 7 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
In a simple circuit, if I= 4 A and R=2 ohms, what is the voltage drop over the resistor of the circuit?
Solve for x: (3)(5)+9=x
(310104b) Some valves require specialized components. Which of the components below would best be used to eliminate "end play".
The symbol for resistance is which of the below?
The statement, "Whatever is done to one side of an equation, can be done to the other side of the equation" is false.
14.696 psia is equal to?
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?
What is the area of a rectangles with sides measuring 15.5 cm, and 12.6 cm?
In a simple circuit, if E=4 V and R=1.75 ohms, what is the current of the circuit?
"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?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "B"?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, testing of the isolation to all sources of energy to the work area, would be which of the steps below?
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?
A volume booster is not a positioner.
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
There are two very common types of metric vernier calipers. If the caliper that you are using has 1mm graduations on the beam, which of the answers below represents the graduations required on the Vernier scale?
Which type of actuators are widely used where a large amount of mechanical travel is necessary?
Good trade practice is a 4:1 ratio when using an extension ladder. From which piece of legislation does the practice originate from?
The prefix "Micro" can be expressed as?
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.
(310105i) The reaction a solid has to an external force that is applied to it can be measured. Which of the units below corresponds to "Strain" measurement?
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 fluid level if the transmitter signal is 56 kPa
What are the three areas of WHMIS?
Reduce and state answer as a proper or mixed fraction: ³⁴⁰⁄₁₆.
(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?
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 "SS" refer to?
(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?
(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?
State the number 0.003402 using decimal notation and round the answers to three significant digits.
What pressure does a column of liquid exert with a density of 48.9 lbs per cubic foot and a height of 6.5 feet
With the proper formula "Work" is a measurable quantity. Which answer below represents the "displacement" part of that equation?
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 roof of the container. Of the following answers, which gas would he be testing for?
"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?
(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 tube to tube?
If a pressure gauge is reading 54 kPag and the local atmospheric pressure is 99 kPaa, the the absolute pressure gauge reading will be?
There are many terms that are used with precise measurements. Which of the answers below is the term used when the answer to a problem has more significant digits that the measurements that have been recorded?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the least common of those methods?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁T₂=P₂T₁"?
State the number 479.3 using engineering notation and round the answers to three significant digits.
Hysteresis can only be calculated.
"_________ is an injury caused by freezing of the skin and underlying tissues. First your skin becomes very cold and red, then numb, hard and pale." Use the answers provided to fill in the blank.
In fluid mechanics, there is always a loss in pressure due to several factors. Which of the factors below would most affect this loss in pressure?
A true force balance negative feedback system is a motion balance system?
What are all the variables that can be measured when dealing with gases?
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
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 final velocity of the car?
(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?
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?
Convert ⅘ to a decimal.
Loss of pressure is a by product of several factors in a piping system. If the length of a straight section of pipe has the diameter doubled, which of the answers below would be the result?
(310105d) The output of an applied force uses is a measurable quantity. Which of the terms below would be use "W" as it's unit of measurement?
There are subgroups of fuel for fires need to burn. Which of those subgroups would NGLs belong?
In a simple circuit, if E=8 V and R=3 ohms, what is the current of the circuit?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of traps dissolved oxygen and enhancing casting characteristics?
If, for every 12 C of charge, 50 J of energy is available, what is the voltage?
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?
Before working on a task, you notice that a trench with vertical rebar ends is directly under the work location. Harnesses and anchor points are provided at the task location by the employer, which you are instructed to use. The piece of legislation that best covers the action of the employer is which of the below?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "2" in the picture below?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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?
"A two ratios that are equal in an equation." is a description of which mathematical term?
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 Zone 2?
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?
In the SI system, the unit for time is?
When an atom loses an electron, it is commonly referred to as which of the below?
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?
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an air core is less preferable than an iron one.
Calculate the relative density for a liquid whose density is =743.2 kg/m³.
What does the term "Cv" represent in calculating pressure drop?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=ZnRT"?
State the number 40.021 x 10⁻¹ using decimal notation and round the answers to three significant digits.
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a restricting element?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
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
There are many terms associated with "Energy". Which term below is correctly described as, "is energy stored in a spring."?
A column of water at 4C, 6.5 meters in height exerts what amount of pressure?