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39. An indication of the presence of carburetor ice is: ^[[reduced Man Pres.]] 40. The two methods used to combat carburetor icing are: a. ^[[Heat]] b. ^[[Alcohol]] [[underlined]] OIL SYSTEM [[/underlined]] 41. The usable oil capacity is ^[] gallons and the oil tanks are located ^[[on each engine nacelle]] 42. The minimum oil temperature and fuel pressure for run-up are ^[[40°C]] and ^[[16 psi]] respectively. 43. Minimum oil pressure for flight is: a. 40 PSI. b. 70 PSI. [[circled]] c. [[/circled]] 60 PSI. 44. Normal oil temperature should read: a. 60°C to 90°C. [[circled]] b. [[/circled]] 60°C to 80°C. c. 40°C to 100°C. 45. The procedure for oil dilution is: ^[[1. Engines 1000-1200 rpm. 2. Oil temp below 50°C. 3. Dilute sw 2-4-7 min. 4. Prop controls. 5. Accelerate 10 sec. 6. Idle cut-off, holding dil s.w ON. [[underlined]] FUEL SYSTEM [[/underlined]] 46. The total usable fuel in US fallons in the C-47 is: a. 402 gallons mains; 400 gallons auxs. [[circled]] b. [[/circled]] 404 gallons mains; 398 gallons auxs. c. 800 gallons all tanks. 47. The selector handle on the fuel quantity indicator is turned ^[[clockwise]] when checking the fuel tank quantities. 48. Minimum fuel pressure for flight is: [[circled]] a. [[/circled]] 16 PSI. b. 18 PSI. c. 20 PSI. 49. What is the normal usage of fuel with full tanks, and why? ^[[Mains - then aux - C.G.]] 5
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