COMMERCIAL PILOT QUIZ #4

Instructor's Name________________________

 

Student's Name__________________________ Date_________________

 

 

Instructions: Answer the multiple-choice question with the best possible answer. Write the answer to the essay question in the space provided. Email the quiz to your instructor for evaluation.

 

 

1. If an airplane is consuming 12.5 gallons of fuel per hour at a cruising altitude of 8,500 feet and the groundspeed is 145 knots, how much fuel is required to travel 435 NM?

A. 27 gallons.

B. 34 gallons.

C. 38 gallons.

 

2. GIVEN:

True course 105°

True heading 085°

True airspeed 95 kts

Groundspeed 87 kts

Determine the wind direction and speed.

A. 030° and 38 knots.

B. 020° and 32 knots.

C. 200° and 32 knots.

 

 

3. You have flown 52 miles, are 6 miles off course, and have 118 miles yet to fly. To converge on your destination, the total correction angle would be

A. 6°.

B. 10°.

C. 3°.

 

 

4. What are Five Purposes of engine oil?

e.

 

5. True course measurements on a Sectional Aeronautical Chart should be made at a meridian near the midpoint of the course because the

A. angles formed by lines of longitude and the course line vary from point to point.

B. values of isogonic lines change from point to point.

C. angles formed by isogonic lines and lines of latitude vary from point to point.

 

 

6. How should the pilot make a VOR receiver check when the aircraft is located on the designated checkpoint on the airport surface?

A. With the aircraft headed directly toward the VOR and the OBS set to 000°, the CDI should center within plus or minus 4° of that radial with a TO indication.

B. Set the OBS on 180° plus or minus 4°; the CDI should center with a FROM indication.

C. Set the OBS on the designated radial. The CDI must center within plus or minus 4° of that radial with a FROM indication.

 

 

7. When the CDI needle is centered during an airborne VOR check, the omnibearing selector and the TO/FROM indicator should read

A. within 4° of the selected radial.

B. within 6° of the selected radial.

C. 0° TO, only if you are due south of the VOR.

 

 

8. Unless adjusted, the fuel/air mixture becomes richer with an increase in altitude because the amount of fuel

A. decreases while the volume of air decreases.

B. remains constant while the density of air decreases.

C. remains constant while the volume of air decreases.

 

9. At high altitudes, an excessively rich mixture will cause the

A. engine to overheat.

B. engine to operate smoother even though fuel consumption is increased.

C. fouling of spark plugs.

 

 

 

10. Frequent inspections should be made of aircraft exhaust manifold-type heating systems to minimize the possibility of

A. exhaust gases leaking into the cockpit.

B. a power loss due to back pressure in the exhaust system.

C. a cold-running engine due to the heat withdrawn by the heater.

 

 

11. To establish a climb after takeoff in an aircraft equipped with a constant-speed propeller, the output of the engine is reduced to climb power by decreasing manifold pressure and

A. increasing RPM by decreasing propeller blade angle.

B. decreasing RPM by decreasing propeller blade angle.

C. decreasing RPM by increasing propeller blade angle.

 

 

12. When taxiing during strong quartering tailwinds, which aileron positions should be used?

A. Aileron down on the side from which the wind is blowing.

B. Neutral.

C. Aileron up on the side from which the wind is blowing.

 

 

13. When computing weight and balance, the empty weight includes the weight of the airframe, engine(s), and all items of operating equipment permanently installed. Empty weight also includes

A. the unusable fuel, hydraulic fluid, and undrainable oil or, in some aircraft, all of the oil.

B. all usable fuel and oil, but does not include any radio equipment or instruments that were installed by someone other than the manufacturer.

C. all usable fuel, maximum oil, hydraulic fluid, but does not include the weight of pilot, passengers, or baggage.

 

 

14. The CG of an aircraft can be determined by which of the following methods?

A. Multiplying total arms by total weight.

B. Dividing total moments by total weight.

C. Dividing total arms by total moments.

 

15. During preflight in cold weather, crankcase breather lines should receive special attention because they are susceptible to being clogged by

A. ice from crankcase vapors that have condensed and subsequently frozen.

B. congealed oil from the crankcase.

C. moisture from the outside air which has frozen.

 

 

16. Which is true regarding preheating an aircraft during cold weather operations?

A. The cabin area should not be preheated with portable heaters.

B. Hot air should be blown directly at the engine through the air intakes.

C. The cabin area as well as the engine should be preheated.

 

 

17. If necessary to take off from a slushy runway, the freezing of landing gear mechanisms can be minimized by

A. delaying gear retraction.

B. increasing the airspeed to VLE before retraction.

C. recycling the gear.

 

 

18. Which instrument would be affected by excessively low pressure in the airplane's vacuum system?

A. Heading indicator.

B. Airspeed indicator.

C. Pressure altimeter.

 

 

19. Pitot-static system errors are generally the greatest in which range of airspeed?

A. Low airspeed.

B. High airspeed.

C. Maneuvering speed.

 

 

20. During power-off stalls with flaps full down, the stall occurs and the pointer on the airspeed indicator shows a speed less than the minimum limit of the white arc on the indicator. This is most probably due to

A. a low density altitude.

B. a malfunction in the pitot-static system.

C. installation error in the pitot-static system.

 

 

21. A possible result of using the emergency alternate source of static pressure inside the cabin of an unpressurized airplane is the

A. airspeed indicator may indicate less than normal.

B. altimeter may indicate an altitude lower than the actual altitude being flown.

C. altimeter may indicate an altitude higher than the actual altitude being flown.

 

 

22. Prior to starting the engine, the manifold pressure gauge usually indicates approximately 29" Hg. This is because the

A. pointer on the gauge is stuck at the full-power indication.

B. throttle is closed, trapping high air pressure in the manifold.

C. pressure within the manifold is the same as atmospheric pressure.

23. What energy source is used to drive the turbine of a turbocharged airplane?

A. Ignition system.

B. Engine compressor.

C. Engine exhaust gases.

 

 

24. During climbing flight using a turbocharged airplane, the manifold pressure will remain approximately constant until the

A. engine's critical altitude is reached.

B. airplane's service ceiling is reached.

C. waste gate is fully open and the turbine is operating at minimum speed.

 

 

25. In addition to an added safety factor, dual ignition systems also provide

A. better combustion.

B. increased spark plug life.

C. shorter engine warmup periods.

Misc. Commercial References