Liberty University Online Academy AVIA400/ AVIA 400 quiz 3 (solved)
Question 1 2 / 2 pts Sensorineural hearing loss (SNHL), or nerve deafness, that arises from loud noise/ sounds that damage the tiny nerve fibers (hairs) in the Cochlea can often be treated with medication or surgery. True False Question 2 2 / 2 pts The frequency range for normal human hearing is between about ________ and ________ Hz. 20; 20,000 500; 3,000 500; 50,000 5,000; 30,000Question 3 2 / 2 pts ________ orientation (sometimes called postural or proprioceptive or kinesthetic orientation) involves sensors in our muscles, tendons, skin, and joints that respond only to acceleration (including gravity) and is often referred to as the “seat of the pants” sensations. Somatosensory Vestibular Otolith Coriolis Question 4 2 / 2 pts When you decelerate in poor visibility conditions or IMC, you may have the illusion of pitching up. True FalseQuestion 5 2 / 2 pts The physical characteristic of sound which gives the physiological and psychological sensation of loudness is called ________. frequency (Hz) intensity (dB) Hertz (Hz) modulation Question 6 2 / 2 pts Acceleration is the rate of change of velocity. True FalseQuestion 7 2 / 2 pts The measurement of sound intensity is logarithmic and a rule of thumb for perceived loudness is that it doubles for every 10 dB increase in sound intensity. True False Question 8 2 / 2 pts The semicircular canals react primarily to steady velocities, not accelerations. True False IncorrectQuestion 9 0 / 2 pts Sound wave energy is substantially reduced when passing from a gas (air in outer ear) to a liquid (fluid in inner ear); but the unique mechanical arrangement of the middle ear makes up for this limitation by amplifying the sound energy by as much as 25 dB.True False Question 10 2 / 2 pts The ________ is one of the most common vestibular illusions. elevator illusion graveyard spiral somatogravic illusion leans Question 11 2 / 2 pts A common response to Type II SD is to suspect that your flight instruments are not working properly. TrueFalse Question 12 2 / 2 pts Excessive noise on the flight deck has caused pilots to miss, or misinterpret, ATC clearances that have led to altitude busts, near midair collisions, and runway incursions. True False IncorrectQuestion 13 0 / 2 pts G-LOC normally occurs at a sustained G of about _________ +GZ. 1 2 35 Question 14 2 / 2 pts Sensory illusions involving primarily the semicircular canals are often referred to as _________ illusions. somatogravic somatogyral somatological G-excess Question 15 2 / 2 pts Normal human speech ranges from about ________ and Hz. 20; 40200; 20,000 500; 4,000 5,000; 40,000 Question 16 2 / 2 pts Conductive hearing loss (CHL) arises out of complications in the outer and middle ear that cannot be treated with medication or surgery. True False Question 17 2 / 2 pts Grayout and blackout are caused by ________ hypoxia. Stagnanthypoxic histotoxic hypemic Question 18 2 / 2 pts The ratio of applied acceleration (a)—or aircraft-maneuver-induced acceleration—over the acceleration of gravity (g), is used to describe the total acceleration (or “G-force”) on an aircraft and its pilot (G = a/g). True False Question 19 2 / 2 pts Which is not one of the three primary sensory systems that provide the information you need to correctly orient yourself in space? Visual systemVestibular system Somatosensory system Circulatory system Question 20 2 / 2 pts The organ in which the back-and-forth movement of tiny hair cells hair cells is converted into neural impulses that are sent to the auditory cortex of the brain and interpreted as sound, is the _________. hammer cochlea anvil semicircular canalsIncorrectQuestion 21 0 / 2 pts The movement of the sensory hairs in the otolith membrane is the same when the head is tilted downward or when it is upright during forward linear acceleration. True False Question 22 2 / 2 pts When both speech and noise levels are about the same (SNR = 1), most speech communication is understood because of the context in which the individual words are used. True False Question 23 2 / 2 pts The ________ bodies, located in the non-auditory portion of inner ear, respond to linear acceleration, while the apparatus, consisting of three semicircular fluid-filled canals, respond to angular th; otolith vestibular; otolith otolith; vestibular vestibular; vestibular IncorrectQuestion 24 0 / 2 pts The most dangerous symptom associated with moderate to high levels of +GZ is ________ . G-LOC Blackout Grayout RedoutIncorrectQuestion 25 0 / 2 pts Type III (incapacitating) SD occurs when you are aware of your disorientation and can properly take positive control of your aircraft. True False Quiz Score: 40 out of 50
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- avia400 quiz 3
- or nerve deafness
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sensorineural hearing loss snhl
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that arises from loud noise sounds that damage the tiny nerve fibers hairs in the cochlea can often be
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