How can test personnel eliminate the effects of backscatter  variations?

1 Answer

Answer :

By performing the OTDR attenuation measurements in each  direction along the test fiber.

Related questions

Description : While assessing your project processes, you have identified some  uncontrolled process variations. Which of the following would be the  appropriate chart you may use for this purpose? Select one: a. Pareto diagram b. PERT chart c. Control chart d. HR personnel chart e. Critical path

Last Answer : c. Control chart

Description : The purpose of a surge tank is (A) To control the pressure variations due to rapid changes in the pipe line flow (B) To eliminate water hammer possibilities (C) To regulate flow of water to turbines by providing necessary retarding head of water (D) All of the above

Last Answer : Answer: Option D

Description : On electrical generators one of the bearings is isolated from the bedplate. This insulating block should not be painted and must be kept clean to ___________. A. protect operating personnel from shock ... the prime mover as it warms up D. eliminate shaft currents to prevent damaging the bearings

Last Answer : Answer: D

Description : What are the three more common types of irregular variations in the ionosphere?

Last Answer : Sporadic E, sudden disturbances, and ionospheric storms.

Description : What is the main difference between these two types of variations?

Last Answer : . Regular variations can be predicted but irregular variations are unpredictable

Description : What are the two general types of variations in the ionosphere?

Last Answer : Regular and irregular variations.

Description : What are the four widely used variations of the NRZ encoding method?

Last Answer : a. Non-return-to-zero level (NRZ-L). b. Enhanced non-return-to-zero level (E-NRZ-L). c. Non-return-to-zero mark (NRZ-M). d. Non-return-to-zero space (NRZ-S).

Description : Air entrainment in the concrete increases (A) Workability (B) Strength (C) The effects of temperature variations (D) The unit weight

Last Answer : (A) Workability

Description : Training requirements for (2M) repair personnel were developed under guidelines established by what organization?

Last Answer : Chief of Naval Operations (CNO).

Description : Electromagnetic radiation is hazardous to personnel in what two ways?

Last Answer : Rf burns and biological, thermal, and neurological effects.

Description : What programs eliminate the need for programmers to write new programs when all they want to do is copy, print, or sort a data file?

Last Answer : Utility programs.

Description : What two methods of manufacture are being used to eliminate bonding wires?

Last Answer : Flip-chip, beam lead

Description : A mode filter is a device that attenuates specific modes propagating in the core of an optical fiber. What mode propagating along single mode fibers do mode filters eliminate?

Last Answer : Second-order mode.

Description : What circuit section is required in the output of a multivibrator modulator to eliminate unwanted output frequencies?

Last Answer : An LCR filter.

Description : Want to know about food and medicine without side effects that increase body strength and eliminate weakness ?

Last Answer : Answer : You can eat Hamdard Suvit , no significant side effects have been observed in the prescribed dose. Suvit is a combination of interactive multivitamins , medicinal herbs and minerals ... relieves stress and anxiety , maintains muscle strength and reduces toxins caused by free-radicals.

Description : Give meaning of the term defect. State effects of it. Also give classification of it and methods to eliminate them.

Last Answer : Ans: Defect - Failure in a general sense can be regarded as a defect   Effects of Defect -Defect results in the reduction of speed or load capacity of the locomotive or which detables the ... taken by manufacturer Defects(2) and (3) can be minimised by restoring to the ideal maintenance practice

Description : You are using a mechanical voltage tester to check the fuses in a three-phase circuit supplying an electric motor. For which of the following reasons must the motor be stopped during the test? A. ... circuit would be indicated by the voltage tester with the circuit energized. D. All of the above.

Last Answer : Answer: B

Description : The external auditor should obtain a sufficient understanding of the internal audit function because a. The understanding of the internal audit function is an important substantive test to be performed by ... factor in determining the nature, timing, and extent of the external auditor's procedures.

Last Answer : The work performed by internal auditors may be a factor in determining the nature, timing, and extent of the external auditor's procedures.

Description : How do uhf tubes counter the effects of transit time?

Last Answer : By reducing the spacing between tube elements.

Description : Are the effects of temperature changes on LDs more or less significant than for LEDs?

Last Answer : More.

Description : Trade-offs between competing effects are necessary for high speed response. Which competing effect (fast transit time, low capacitance, or high quantum efficiency) requires a thin active area?

Last Answer : Fast transit time.

Description : The effects of directed drift take place at what rate of speed?

Last Answer : The speed of light (186,000 miles per second, 300,000,000 meters per second)

Description : Moms: Could you always tell from your baby's cry when he or she was hungry from all of the other variations of crying?

Last Answer : Yes. And when she was tired, hungry, uncomfortable. And yes, I can tell what other babies are crying from, too. And nothing pisses me off more than a kid wailing in the store because he or she is ... way you can tell the difference between an adult crying out of fear, or out of sadness, you know?

Description : Do you have any good variations on macaroni salad?

Last Answer : I always thought every type of pasta salad was disgusting, but now I have discovered one I like. It's on the salad bar at Ruby Tuesday's. It has rotini pasta, peas and ham (I usually try to ... and then I just like it sparingly usually. Since you're making it at home you obviously can adjust it.

Description : What are some neat variations of rock-paper-scissors?

Last Answer : I want to answer but the only idea I have is obscene. lol

Description : Can you create some variations on the phrase "when pigs fly"?

Last Answer : When fish ride bicycles.

Description : Why are there so many spelling variations for Gaddafi?

Last Answer : Arabic does not have any of our vowel sounds, and based on the variation in spelling, other sounds that we pronounce. As far as I know, Arabic does not even have a phonetic counterpart in the English Alphabet, such as the Japanese do. (In Japanese you can write in Japanese using our ABC’s).

Description : Are variations in blood pressure readings in the same sitting normal?

Last Answer : answer:Yes, variations are normal, particular if you take the second reading immediately following the first one. When you take your blood pressure you squeeze a band of pressure around your arm. It takes ... of points lower. That being said, the variation in the readings you show are not that big.

Description : Great Question versus Flag; other possible options and variations?

Last Answer : I suggested this on the Suggestions thread, but here it goes again: On Ravelry, instead of just Great Answer (or Question ), there are other ways to show lurve : Educational , Interesting , ... akin to this would be an excellent path for Fluther to take-and a great way to achieve new awards.

Description : Are there any variations on/ additions to the Kraft Macaroni and Cheese Dinner that you enjoy?

Last Answer : Occassionally I add a little ketchup.

Description : If Starbucks sold french fries, how many annoying variations on an order might they offer?

Last Answer : there’d only be one type of fry but they’d be covered in milk and cost $8. and they wouldn’t taste like french fries.

Description : Briefly trace the geographical and ethnic variations of Balkan region. -SST 10th

Last Answer : (i) The Balkan was a region of geographical and ethnic variation comprising of modern-day Romania, Bulgaria, Albania, Greece, Macedonia, Croatia, Bosnia-Herzegovina, Slovenia, Serbia and Montenegro, and ... , and extending its own control over the area, which culminated in the First World War.

Description : Why are there great variations in the climate of the Indian sub-continent. -SST 10th

Last Answer : India has diverse conditions. There are sharp variations in temperature and precipitation from place to place and Season to Season. The Indian climate is controlled by the following factors: (i) Situation (ii) Relief (iii) Surface winds (iv) Upper current.

Description : Why are there great variations in the climate of the Indian sub-continent? -SST 10th

Last Answer : (i) There are great variations in the climate of the Indian sub-continent because of the vast longitudinal extent and different topographical features. (ii) Mango showers-Good for the growth of ... -Hot dry winds from Rajasthan to Western U.P. Kalbaisakhi-Thunderstorms in West Bengal and Assam.

Description : Give two reasons for the appearance of variations among the progeny formed by sexual reproduction. -Biology

Last Answer : Now, the two major reasons for appearance of variation among the progeny formed from sexual reproduction are; crossing over in which the DNA gets exchanged between the homologous chromosomes during the meiosis that causes variation in the offspring.

Description : Answer: Genetics is the study of heredity and variations.

Last Answer : Who said, “A bird is an instrument working according to the mathematical laws”?

Description : What are the variations of carbon ?

Last Answer : 2 variants of carbon 1. diamond 2. graphite.

Description : Task: Given a combination padlock number 0000-9999. How to unlock?

Last Answer : I think there are 10,000 Variations, but I may be wrong.

Description : Assertion :- Any population has built in variation in characteristics. Reason :- Variations are always stable and inheritable.

Last Answer : Assertion :- Any population has built in variation in characteristics. Reason :- Variations are always ... D. If both Assertion & Reason are false.

Description : Variations during mutations of meiotic recombinations are

Last Answer : Variations during mutations of meiotic recombinations are A. Random and directionless B. Randonm and ... and small D. Randonm, small adn directional

Description : The basic cause of variations is

Last Answer : The basic cause of variations is A. Mutations B. Out crossing C. Incrossing D. Recombinations

Description : Somaclonal variations can be obtained by

Last Answer : Somaclonal variations can be obtained by A. application of colchicines B. irradiations with gamma rays C. tissue culture D. hybridisation

Description : What is the term for the energy responsible for the variations in the reaction rates of chemical processes?

Last Answer : It's hard to know precisely what is meant by this question. You may be thinking of activation energy, the minimum energy needed to start the reaction, which explains why one reaction may go ... reaction going faster and slower depending on the energy supply, then that's most often thermal energy.

Description : What variations do giraffes?

Last Answer : a variation of a giraffe is its long neck

Description : Why does sexual reproduction result in more genetic variations in a species?

Last Answer : Because the offspring have genetic material from bothparents

Description : Why must there be variations in the population in order for natural selection to occur?

Last Answer : Without the subtle differences on organisms phenotypes whatwould natural selection select from?All organisms in a population are variants and some survive andreproduce better than other against the background of the immediateenvironment and these are selected by that environmentalpressure.

Description : Is both of sexual and asexual have genetic variations?

Last Answer : Yes, there will always be mutations.However, with sexualreproduction, there is a tendency for greater geneticvariations.

Description : What is the particle model of matter and how does it explain the changes of state that occur with variations in temperature or pressure?

Last Answer : Need answer

Description : What factor cause variations in climate and vegetation in the US?

Last Answer : g