Compressibility - Study guides, Class notes & Summaries

ATPL EXAM 2024 WITH QUESTIONS AND ANSWERS. What are the forces acting on an aircraft in flight? - ANSWER Drag. Thrust. Lift and Weight What is direct lift control? - ANSWER The elevator / stabilizer provide the direct lift control. What are high lift devices? - ANSWER Trailing edge flaps. Leading edge flaps. Slots Define the two major types or Drag. - ANSWER Profile and induced drag which equals total drag What are high drag devices? - ANSWER Trailing edge flaps, spoilers, landing gear...

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Maternity Nursing question n answers graded A+amniotic fluid - correct answer helps maintain a constant body temperature for the fetus. The fetus modifies the amniotic fluid through the process of swallowing, urinating, and movement through the respiratory tract ballottement - correct answer examiner feels a rebound when fetus falls back Chadwick's Sign - correct answer Probable sign of pregnancy Blue Color of the mucous membranes of the cervix, vagina, and vulva at about 4 weeks. ...

Sound waves are: a) electric b) mechanical, transverse c) spectral d) longitudinal, mechanical -answers - D The speed of sound of ultrasound in soft tissue is closest to: a) 1,540 km/sec b) 1.54 km/sec c) 1,500 m/s d) 1,540 mm/sec -answers - C Which is not an acoustic variable? a) density b) pressure c) distance d) intensity -answers - D The effects of soft tissue on ultrasound are called: a) acoustic proliferation properties b) dynamic effects c) acoustic pr...

Q 9959) Which of the following fluids has the highest compressibility? a) Water b) Air at 1 atm. pressure c) A gas at 5 atm. Pressure d) All of (1), (2) & (3) correct answers C More Q 9957) For air flow at room temperature to be incompressible, the fluid velocity must not exceed a) 100 m/sec b) 70 m/sec c) 50 m/sec d) 25 m/sec correct answers A More Q 9956) A measure of the effect of compressibility in fluid flow is the magnitude of a dimensionless parameter kn...

NIFE AERO QUESTIONS AND ANSWERS RATED A+ What is a vector? direction and magnitude What is air density? Total mass of air particles per unit volume. m/v What is a moment? Force that is moved some distance. What are the requirements for an airplane to be in equilibrium flight? Sum of all forces and all moments around the center of gravity are equal to 0 Can equilibrium flight be achieved in a turn? No. Acceleration is occurring. There are moments What are the requirements for an a...

solids atomic/molecular motion? atomic/molecular spacing? shape? volume? compressibility? - correct answer oscillation/vibration about a fixed point close together definite definite incompressible liquids atomic/molecular motion? atomic/molecular spacing? shape? volume? compressibility? - correct answer free to move relative to one another close together indefinite definite incompressible gases atomic/molecular motion? atomic/

SPI PRACTICE QUESTIONS WITH 100% CORRECT ANSWERS ALREADY PASSED A+ 2024 Sound waves are: - ANS-longitudinal, mechanical The speed of sound in soft tissue is closest to: - ANS-1,500 m/s The frequency closest to the lower limit of ultrasound is: - ANS-15,000 Hz Which is not an acoustic variable? - ANS-intensity The effects of soft tissue on ultrasound are called: - ANS-acoustic propagation properties All of the following are true EXCEPT: - ANS-two waves with identical frequencies mus...

SPI MOCK EXAM Questions and Correct Answers | Latest Update 2024/2025 | Graded A+ When the ELASTICITY of a medium is HIGH, the _____ is HIGH - stiffness - prop. speed - compressibility - reflectivity - Answer -compressibility What term describes the # of cycles that an acoustic variable completes in a second? - period - freq. - PRP - variable rate - Answer -freq.What happens to venous flow return to the HEART when a person INHALES? - Answer -increases What establishes the freq. of...

When the ELASTICITY of a medium is HIGH, the _____ is HIGH - stiffness - prop. speed - compressibility - reflectivity -answers - compressibility What term describes the # of cycles that an acoustic variable completes in a second? - period - freq. - PRP - variable rate -answers - freq. What happens to venous flow return to the HEART when a person INHALES? -answers - increases What establishes the freq. of an US wave? - transducer - medium through which sound travels ...