1) What are the primary functions of the field frame (yoke) in a DC generator? a) To generate electrical current   b) To complete the magnetic circuit and provide mechanical support   c) To regulate voltage output 2) Why are field poles laminated in a DC generator? a) To increase eddy current losses   b) To reduce mechanical strength   c) To reduce eddy current losses 3) Why do practical DC generators use electromagnets instead of permanent magnets? a) To reduce the physical size of the generator   b) B) To increase the cost of production   c) C) To decrease the efficiency of the generator 4) What is the purpose of the armature assembly in a DC generator? a) To regulate voltage output   b) To complete the magnetic circuit   c) To convert mechanical energy into electrical energy 5) What is the significance of laminating the core of the armature in a DC generator? a) To increase the circulation of eddy currents   b) To reduce the mechanical safety of the armature   c) To prevent the circulation of eddy currents 6) How are the coil ends of a drum-type armature connected to the generator's output? a) Through metal wires   b) Welded to the core   c) Brought out to individual segments of the commutator 7) What is the function of the risers on the segments of a commutator in a DC generator? a) To increase mechanical stability   b) To provide electrical contact with the armature coils  c) To facilitate soldering of leads 8) How are the brushes in a DC generator typically held in place? a) Welded to the commutator   b) Clamped by steel V-rings   c) Tied with braided-copper conductors 9) Why are brushes in a DC generator made of high-grade carbon? a) To increase friction   b) To decrease wear   c) To reduce contact resistance 10) Why are generators known for their relative simplicity and durable construction? a) Due to advanced technology   b) Because of routine inspection   c) To minimize aircraft downtime 11) How often is routine inspection and service typically recommended for generators? a) Monthly   b) At each 100-hour or annual inspection interval  c) Only during engine overhaul 12) Why is generator overhaul often synchronized with engine overhaul? a) To increase aircraft downtime   b) To minimize aircraft downtime   c) To reduce the overall lifespan of the generator 13) What is one of the key items to inspect during the 100-hour and/or annual inspection of a generator? a) Inspect the battery condition   b) Inspect the generator for security of mounting and mounting flange   c) Inspect the fuel system for leaks 14) During the inspection of the brushes and commutator, what should be checked using a spring scale? a) A) Brush composition   b) B) Tension of the brush springs c) C) Commutator temperature 15) What does the absence of residual voltage in a generator indicate? a) Normal operation   b) Overheating of the generator   c) Possible need for "flashing the field" 16) If the generator produces voltage with the regulator shorted, what is likely the issue? a) Faulty ground connection   b) Generator malfunction   c) Voltage regulator malfunction 17) Why might the generator be replaced with a new unit instead of servicing and adjusting some vibrator-type generator controls? a) To save time and expense   b) To improve generator efficiency   c) To enhance safety precautions 18) When is generator overhaul typically performed? a) Only during scheduled maintenance intervals   b) Whenever the aircraft's engine is overhauled   c) At the discretion of the pilot 19) Who is often responsible for the generator overhaul? a) Aircraft owners   b) FAA Certified Repair Stations   c) Pilots 20) What are the common steps involved in the overhaul of a generator? a) Inspection, testing, and reassembly   b) Disassembly, cleaning, and inspection   c) Repair, reassembly, and testing 21) What source provides specific disassembly instructions for units during a generator overhaul? a) FAA regulations   b) Manufacturer's overhaul instructions   c) Pilot's handbook 22) Why might specialized tools be required for removing pole shoes during disassembly? a) To increase disassembly speed   b) To prevent accidental backing out of screws   c) To minimize the use of force during removal 23) Why is it crucial to follow the manufacturer's instructions when removing bearings during disassembly? a) To speed up the overhaul process   b) To avoid damage to the bearings or their seating area   c) To reduce the need for specialized tools 24) What should be done to the painted finish on the exterior of the frame prior to generator reassembly? a) Leave it as is   b) Restore it   c) Remove it entirely 25) Why is it important to renew special insulated coatings on the interior surfaces in some cases during reassembly? a) To enhance visual appearance   b) To improve electrical conductivity   c) To maintain insulation properties 26) What is the purpose of the pigtail on brushes during generator reassembly? a) To restrict free motion of the brushes   b) To conduct the current and prevent overheating of the brush spring   c) To increase sparking of the brush guides

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