123id 100"Grey out" can be observed if a pilot is subjected to more than:a + 3 Gyb - 3 Gzc + 3 Gxd + 3 Gz124id 101The negative (radial) acceleration of an airplane affects the sitting pilot with inertiaalong :a the transverse body axis to the rightb the vertical body axis downwardsc the vertical body axis upwardsd the transverse body axis to the left125id 102How can a pilot increase his tolerance to +Gz ?a Take an upright seat position.b Tighten shoulder harness.c Tightening of muscles, ducking the head and perform a kind of pressure breathing.d Relax the muscles, ducking the head and lean upper body forward.126id 103Oxygen in the blood is primarily transported bya the blood plasmab the hemoglobin in the red blood cellsc attaching itself to the hemoglobin in the red blood plasmad attaching itself to the hemoglobin in the white blood cells12740.2. Basic aviation physiology and health maintenance 2002/12/22 Page 20 of 139id 104Large amounts of carbon dioxide are eliminated from the body whenhyperventilating. This causes the blooda to accelerate the oxygen supply to the brainb to turn more acid thus eliminating more oxygen from the hemoglobinc to become more alkaline increasing the amount of oxygen to be attached to thehemoglobin at lung aread not to change at all128id 105Hypoxia is caused bya a higher affinity of the red blood cells (hemoglobin) to oxygenb reduced partial pressure of nitrogen in the lungc an increased number of red blood cellsd reduced partial oxygen pressure in the lung129id 106Hypoxia can be caused by: 1. low partial pressure of oxygen in the atmospherewhen flying at high altitudes without pressurisation and supplemental oxygen 2. adecreased saturation of oxygen in the blood due to carbon monoxide attached tothe hemoglobin 3. blood pooling in the lower extremities due to inertia (+ Gz) 4.malfunction of the body cells to metabolize oxygen (i.e. after a hangover)a 1 and 2 are correct, 3 and 4 are falseb 1, 2, 3 and 4 are correctc 1 is false, 2, 3 and 4 are correctd 1, 2, 3 are correct, 4 is false130id 107A pilot will get hypoxiaa after decompression to 30 000 feet and taking 100 % oxygen via an oxygen mask