An example of a transducer which can focus at 6 cm is a 4 MHz, near zone length at 10 cm.
What is a transducer?A transducer can be defined as a mechanical device that is designed and developed to convert one form of energy to another.
This ultimately implies that, a transducer has the ability to convert a signal in one form of energy to a signal in another energy form such as an ultrasound transducers which converts electric energy into sound energy and vice-versa.
In conclusion, a 4 MHz, near zone length at 10 cm is an example of a transducer which can focus at 6 cm.
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A technician needs to check the heating operation of a heat pump that has no gauge access ports. The technician should start by:
The technician should start by checking the temperature rise across the indoor coil.
Who is a technician?This is a person who has skill in a particular area of job. A technician is responsible for repairs and also ensure different equipment and systems are working perfectly.
Hence, the technician should start by checking the temperature rise across the indoor coil.
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a. 1.2KΩ =
Ωwhat is the ohms
Answer:
1200
Explanation:
ohms is the si unit for resistance.
hence, 1.2 k(ohms) = 1200 ohms since k = kilo = ×1000
A 20cm-long rod with a diameter of 0.250 cm is loaded with a 5000 N weight. If the diameter of the bar is 0.490 at this load, determine: I. the engineering stress and strain, and [2] II. the true stress and strain
If the diameter of the bar is 0.490 at this load, determine I. the engineering stress and strain, and [2] II. the true stress and strain is 1561. 84 MPa.
What is strain?Strain is a unitless degree of ways a great deal an item receives larger or smaller from an implemented load. Normal stress happens while the elongation of an item is in reaction to an everyday pressure (i.e. perpendicular to a surface), and is denoted via way of means of the Greek letter epsilon.
L = 20 cm d x 1 = 0.21 cmdx 2 = 0.25 cmF=5500 a) σ= F/A1= 5000/(π/4x(0.0025)^2)= 1018.5916 MPa lateral stress= Ad/d1= (0.0021-0.0025)/0.0025 = - 0.1 longitudinal stress (ɛ_l)= -lateral stress/v = -(-0.16)/0.3(assuming a poisson's ration of 0.3) ε_l=0.16/0.3 = 0.5333b) σ_true= σ(1+ ɛ_I)= 1018.5916(1+0.5333 = 1561.84 MPa.Read more about the diameter :
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The most important reason to wear your seat belt is to protect you from:
Answer:
#1. Saves Lives. The bottom line is seatbelts save lives.
Explanation:
What does it mean when your car says engine power reduced?.
Answer:
it means that the power of your car has been intentionally limited
Explanation:
I'm just a smart guy
12. Technician A says that some seam sealers may be applied over bare steel.
Technician B says that some undercoating may be applied over bare steel.
Who is right?
1
A only
OB only
Both A and B
Neither A nor B
Answer:
seam sealers
Explanation:
Undercoating is not required to be done on bare metalsSteel is also counted among metals.So undercoating is not applicableOption A
If particleboard is used as wall sheathing, the grade mark with type _____ or _____ should be stamped on it.
If particleboard is used as wall sheathing, the grade mark with type M1 or M2 should be stamped on it.
What is particle board?Particle board is notably used as floors underlayment or as a base for parquet floors, timber floors, or for carpets. For this purpose, the particle forums are dealt with with unique chemical compounds and resins to cause them to water-resistant or termite proof.
Waferboard, OSB, and composite plywood, while carried out as wall sheathing, offer a nail base for software of shingle siding.
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All of the following statements with respect to manual transmission are true EXCEPT: Group of answer choices gears can be applied only when the clutch is depressed. when in gear, releasing the clutch connects the engine to the transmission. releasing the clutch pedal closes the contacts of the clutch safety switch. the transmission provides the best pulling power in the lowest gear.
All of the following statements with respect to manual transmission are true EXCEPT releasing the clutch pedal closes the contacts of the clutch safety switch.
What is the transmission?Manual automobiles are useful due to the fact they normally value much less and are extra fuel-efficient. You can also see decreased upkeep prices and coverage prices. They additionally provide you higher management of the car for the reason that driver, now no longer the car, is in fee of converting gears.
With the pedal totally released, there's complete touch between the engine and the driveshaft, through the take hold of the plate, because of this the engine can observe energy immediately to the driveshaft. However, it's miles feasible to have the take hold of plate partly engaged, permitting the take hold of to slip.
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A visual lead of ________ seconds or 1 city block is appropriate when driving in traffic in urban areas.
The answer is
A visual lead of 12-15 seconds or 1 city block is appropriate when driving in traffic urban areas.
Urban driving involves a variety of complex driving situations.
when you driving in urban areas, look at least 12-15 seconds ahead of vehicle.
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Answer: 5
Explanation:
just took it
In a series circuit do each bulb get
the full electrical pressure.
Answer:
The electrical devices or resistors/appliances share the electrical pressure in a Series Circuit. If you add electrical appliances, each one will get less electrical pressure.
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The condensed Q formula may be used for operations in which the friction loss can be determined for:
The condensed Q formula may be used for operations in which the friction loss can be determined for a: 3, 4, or 5 inch hose.
What is a firehose friction loss?A firehose friction loss can be defined as a measure of the effect of the resistance of water against the inner side of a firehose, which typically results in a pressure drop at the terminal end.
Generally, some of the factors that affect the resistance or friction in a firehose include:
Length of hose.Age of hose.Water flow (gpm)Water turbulenceGravityMathematically, the firehose friction loss can be calculated by using this formula:
FL = C × (Q/100)² × L/100.
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Starters that are intended to protect motors that operate on 240 volts should contain ____ load contacts.
which of the following elements does not affect the strength and usefulness of concrete
When is creep important to metals
Answer:
Creep is a type of metal deformation that occurs at stresses below the yield strength of a metal, generally at elevated temperatures. One of the most important attributes of any metal is its yield strength because it defines the stress at which metal begins to plastically deform.
What is the purpose of having a ventilation system on board a motorized vessel?.
The purpose of having a ventilation system on board a motorized vessel is : To remove flammable gas from a vessel to avoid explosions.
Meaning of ventilation systemA ventilation system can be defined as a system that allows for removal of gases from a vessel to the atmosphere.
A Ventilation system is very important in every motorized vessel because they help to eliminate or remove flammable gases that are dangerous and are liable to explode when held in a large amount in the engine.
In conclusion, The purpose of having a ventilation system on board a motorized vessel is to remove flammable gas from a vessel their by avoiding explosions.
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A voltage drop test is being performed on the output wire of the alternator to the battery positive post. Technician A says that the voltage drop should be more than 0.5 volts. Technician B says that during the voltage drop test, the engine should be at the specified rpm and the battery loaded down so the alternator puts out maximum current flow. Who is correct
Assuming a voltage drop test is being performed on the output wire of the alternator to the battery positive post, the technician who would be correct is: B. Technician B.
What is a voltage drop?A voltage drop can be defined as a measure of the decrease in electrical potential in an electrical circuit, especially along the path of a current that is flowing through it.
How to calculate the amount of voltage?In order to determine the amount of voltage that is running through this circuit, we would apply Ohm's law:
V = IR
Where:
I represents the current.R represents the resistance.V represents the voltage.Assuming a voltage drop test is being performed on the output wire of the alternator to the battery positive post, the technician who would be correct is Technician B because the engine should be at the specified rpm.
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Complete Question:
A voltage drop test is being performed on the output wire of the alternator, between the alternator output wire to the battery positive post. Technician A says that the voltage drop should be approximately 12.0 volts. Technician B says that during the voltage drop test, the engine should be at the specified rpm and the battery loaded down so the alternator puts out maximum current flow. Who is correct?
A. Technician A
B. Technician B
C. Both Technician A and B
D. Neither Technician A nor B
Name the force acting on the handles of a plastic shopping bag that is full of groceries.
The answer is
The force acting on the handles of a plastic shopping bag that is full of groceries are gravitational force, muscular force.
Gravitational force works downwards, and muscular force is applied by the hands lifting bucket upwards. Two forces are in the opposite direction and hence balancing each other. As a result net force is zero.
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Technician A says when the resistances in a parallel circuit are not equal, then the current divides in accordance with the value of each resistance, but the total current flow is still the sum of the currents flowing in each branch. Technician B says all components in a parallel circuit are connected directly to the same voltage supply. Who is correct?
Technician A says when resistance in a parallel circuit are not equal, and technician B says all components in a parallel circuit are connected directly to the same voltage supply. Both technicians are correct.
What is a circuit?Circuit is a connection of joined wire, where current is flow from the wires. The circuits are joined in a parallel or series.
Thus, the technician A says when resistance in a parallel circuit are not equal, and technician B says all components in a parallel circuit are connected directly to the same supply. Both technicians are correct.
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How many pounds in 32 kilograms?
Answer:
it is 70 lbs...........
.
Answer:
Explanation:
The standard conversion factor for pounds and kg is 2.20462 pounds make 1 kg
This is a proportion question. A proportion consists of 2 equal ratios. If 3 of the 4 parts are known, the 4th part can be found.
Givens
1 kg = 2.20462 pounds (that's 2 of the 4 parts)
32kg = x 32 kg is our 3rd part.
Solution
1/32 = 2.20462/x Cross Multiply
x = 32*2.20462
x = 70.55 pounds rounded to the nearest hundredth
Tech A says that water soaked brake shoes can be a cause of brake fade. Tech B says that disc brakes dissipate heat faster than drum brakes. Who is correct
Explanation:
perturbateur ( le temps, le lieu, les personnages[description], la victime, l'enqueteur )
les peripeties
le denouement
the diagram illustrates a method of producing plastics called
Answer:
polymerisation,
Explanation:
what is difference between baseband transmission and broadband transmission
The difference between the baseband and the broadband connection is made with the transmission of signal over the frequency.
What is data transmission?The data transmission is given as the transfer of the data from one digital device to another. The transmission can take place with the baseband transmission and the broadband transmission.
The major difference between the two transmissions is that the baseband utilizes a complete frequency for transmission of signal, while the transmission with the broadband is made with multiple signals over multiple frequencies.
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A discharging lead-acid battery is best described as.
Answer: chemical cells that produce an electrical current
Explanation:
All aspects of the Kirby-Bauer test are standardized to assure reliability. What might be the consequence of pouring the plates 2mm deep instead of 4mm deep
Answer:
it would affect the distance the antiantibodies diffuse from the disk
Explanation:
If the piston in problem 3 had an input of 50 psi, what would the total amount of work performed by one piston be?
Answer:
Applied pressure on piston (P) = 50 psi. We know that work done is given by W = Force x displacement. S Force = Pressure x Areas > W = ( PXA ) X L W = PX ( AL ) W = PX AV = 50x 43.7088. W= 2185.
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A dice is thrown 420 times and the number 6 is obtained 63 times; express the frequency of obtaining
the number 6 as a percentage.
Answer: 15%
Explanation:
Frequency of obtaining = 63/420 = 0.15 = 15%
A 25-horsepower, three-phase induction motor has a nameplate rating of 32 amperes. The nameplate also shows a temperature rise of 30 degrees C. What is the overload size for this motor in amperes
Based on the calculation, the overload size for this inductor motor in Amperes is equal to 40 amperes.
Given the following data:
Power rating = 25-horsepower.Nameplate rating = 32 amperes. Temperature rise = 30°C.How to determine overload size for this motor?According to Section 430.32(A)(1) of the National Electrical Code (NEC), the overload size is 125% (1.25) of the full-load current rating of a polyphase (three-phase) inductor motor.
Therefore, the overload size for this inductor motor in Amperes is given by:
Overload size = 32 × 1.25
Overload size = 40 amperes.
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Technician A says that if drum brake shoes become saturated with gear oil or grease, they should be replaced. Technician B says that drum brake shoes can be cleaned and reused if the lining becomes contaminated with gear oil or grease. Who is correct
Technician A is wrong and Technician B words that drum brake shoes need to be cleaned and reused when lining is stained with gear oil or grease is correct.
Can contaminated brake shoes be reused?In a situation when they are said to be soaked in anything that is bad then one can be said to not reuse them but in other cases, it can be reused.
Note that Technician A is wrong and Technician B words that drum brake shoes need to be cleaned and reused when lining is stained with gear oil or grease is correct.
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Who is the first engineer of world ? and why?
Answer:
Imhotep
Explanation:
The first engineer known by name and achievement is Imhotep because he had builded the step pyramid of Egypt.
When a technician is ohming out a load in a circuit, what reading should the technician get if the load is good
When a technician is ohming out a load in a circuit, the reading that the technician should get if the load is good is some numbers.
What does Ohming out a circuit mean?The term “Ohming out a motor” is known to be the act of measuring the electrical resistance that is present in the motor windings and comparing it with the normal values.
Note that When a technician is ohming out a load in a circuit, the reading that the technician should get if the load is good is some numbers as it will tell if there is a measure of comparison or not.
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