2024 Private Pilot Test Prep accurate Questions & Answers

2024 Private Pilot Test Prep accurate Questions & Answers Should it become necessary to handprop an airplane engine, it is extremely important that a competent pilot... - ANSWER be at the controls in the cockpit What should be the first action after starting an aircraft engine? - ANSWER Adjust for roper RPM and check for desired indications on the engine gauges What is one purpose for using reciprocating engines? - ANSWER They are relatively simple and inexpensive to operate. One purpose of the dual ignition system on an aircraft engine is to provide for - ANSWER improved engine performance An electrical system failure (battery and alternator) occurs during flight. In this situation, you would - ANSWER experience avionics equipment failure. If the ground wire between the magneto and the ignition switch becomes disconnected, the most noticeable result will be that the engine - ANSWER cannot be shut down by turning the switch to the OFF position. The operating principle of float-type carburetors is based on the - ANSWER difference in air pressure at the Venturi throat and the air inlet. The basic purpose of adjusting the fuel/air mixture at altitude is to - ANSWER decrease the fuel flow in order to compensate for decreased air density. While cruising at 9,500 feet MSL, the fuel/air mixture is properly adjusted. What will occur if a descent to 4,500 feet MSL is made without readjusting the mixtures? - ANSWER The fuel/air mixture may become excessively lean. During the run-up at a high-elevation airport, a pilot notes a slight engine roughness that is not affected by the magneto check but grows worse during the carburetor heat check. Under these circumstances, what would be the most logical initial action? - ANSWER Check the results obtained with a linear setting of the mixture. If an aircraft is equipped with a fixed-pitch propeller and a float-type carburetor, the first indication of carburetor ice would most likely be - ANSWER loss of RPM. The presence of carburetor ice in an aircraft equipped with a fixed-pitch propeller can be verified by applying carburetor heat and noting - ANSWER a decrease in RPM and then a gradual increase in RPM. Which condition is most favorable to the development of carburetor icing? - ANSWER Temperature between 20 and 70°F and high humidity. The possibility of carburetor icing exists even when the ambient air temperature is as - ANSWER high as 70°F and the relative humidity is high. Carburetor icing can occur with an OAT as high as - ANSWER 20°C and high relative humidity. Applying carburetor heat will - ANSWER enrich the fuel/air mixture. What change occurs in the fuel/air mixture when carburetor heat is applied? - ANSWER The mixture becomes richer. Generally speaking, the use of carburetor heat tends to - ANSWER decrease engine performance. With regard to carburetor ice, float-type carburetor systems in comparison to fuel injection systems are generally considered to be - ANSWER more susceptible to icing. On aircraft equipped with fuel pumps, when is the auxiliary electric driven pump used? - ANSWER In the event engine-driven fuel pump fails. If the grade of fuel used in an aircraft engine is lower than specified for the engine, it will most likely cause - ANSWER detonation. Detonation may occur at high-power settings when - ANSWER the fuel mixture ignites instantaneously instead of burning progressively and evenly. Detonation occurs in a reciprocating aircraft engine when - ANSWER the unburned charge in the cylinders explodes instead of burning normally. The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as - ANSWER pre-ignition. What type fuel can be substituted for an aircraft if the recommended octane is not available? - ANSWER The next higher octane aviation gas. Filling the fuel tanks after the last flight of the day is considered a good operating procedure because this will - ANSWER prevent moisture condensation by eliminating airspace in the tanks. To properly purge water from the fuel system of an aircraft equipped with fuel tank sumps and a fuel strainer quick drain, it is necessary to drain fuel from the - ANSWER fuel strainer drain and the fuel tank stumps. If a pilot suspects that the engine (with a fixed-pitch propeller) is detonating during climb-out after takeoff, the initial corrective action to take would be to - ANSWER lower the Mose slightly to increase airspeed. Excessively high engine temperatures will - ANSWER cause loss of power, excessive oil consumption, and possible permanent internal engine damage. Excessively high engine temperatures, either in the air or on the ground, will - ANSWER cause loss of power, excessive oil consumption, and possible permanent internal engine damage. If the engine oil temperature and cylinder head temperature gauges have exceeded their normal operating range, the pilot may have been operating with - ANSWER too much power and with the mixture set too lean. Which would most likely cause the cylinder head temperature and engine oil temperature gauges to exceed their normal operating ranges? - ANSWER Using fuel that has a lower-than-specified fuel rating. For internal cooling, reciprocating aircraft engines are especially dependent on - ANSWER the circulation of lubricating oil. An abnormally high engine oil temperature indication may be caused by - ANSWER the oil level being too low. What action can a pilot take to aid in cooling an engine that is overheating during a climb? - ANSWER Reduce rate of climb and increase airspeed. What is one procedure to aid in cooling an engine that is overheating? - ANSWER Enrichen the fuel mixture. The most important rule to remember in the event of a power failure after becoming airborne is to - ANSWER immediately establish the proper gliding attitude and airspeed. How is engine operation controlled on an engine equipped with a constant-speed prop