cfi Airplane Instruments, Engines, and Systems

Deviation error of the magnetic compass is caused by

Which statement is true about magnetic deviation of a compass

In the Northern Hemisphere, a magnetic compass will normally indicate a turn toward the north if

In the Northern Hemisphere, if an aircraft is accelerated or decelerated, the magnetic compass will normally indicate

In the Northern Hemisphere, which would be correct about starting the rollout from a turn using a magnetic compass? Start the rollout

What should be the indication on the magnetic compass as you roll into a standard rate turn to the right from a south heading in the Northern Hemisphere?

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

If both the ram-air input and drain hole of the pitot system are blocked, what airspeed indication can be expected?

The Pitot system provides impact pressure for which instrument?

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

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

If a pitot tube is clogged, which instrument would be affected?

What does the lower limit of the white arc on an airspeed indicator represent?

What does the lower limit of the green arc on an airspeed indicator represent?

What airspeed indicator marking identifies the maximum structural cruising speed of an aircraft?

Which airspeed is identified by color coding on an airspeed indicator?

What is an important airspeed limitation not color coded on airspeed indicators?

If the static pressure tubes are broken inside a pressurized cabin during a high-altitude flight, the altimeter would probably indicate

Which statement is true about the effect of temperature changes on the indications of a sensitive altimeter?

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

Excessively high engine temperatures, either in the air or on the ground, will

What action can a pilot take to aid in cooling an engine that is overheating during a climb?

Excessively high engine temperatures will

An abnormally high engine oil temperature indication may be caused by

For internal cooling, air-cooled engines are especially dependent on

If, during flight, you notice that the cylinder head temperature (CHT) indication exceeds the normal operating range, how would you proceed to cool the engine?

If the engine oil temperature and cylinder head temperature gauges have exceeded their normal operating range, you may have been

An abnormally high engine oil temperature indication may be caused by

Air cooled engines dissipate heat

Coolant in a liquid cooled engine is normally circulated by

What is the primary advantage of a constant­ speed propeller?

To absorb maximum engine power and to develop maximum thrust, a constant-speed propeller should be adjusted to a blade angle which will produce a

When operating an aircraft with a constant-speed propeller, which procedure places the least stress on cylinder components?

Which statement is true regarding propeller efficiency? Propeller efficiency is the

The distance a propeller actually advances in one revolution is

Propeller slip is the difference between the

Blade angle of a propeller is defined as the angle between the

The reason for variations in geometric pitch (twisting) along a propeller blade is that it

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

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

If the ground wire between the magneto and the ignition switch becomes disconnected, the most noticeable result will be that the engine

What should be the first action after starting an aircraft engine?

If the ground wire between the magneto and the ignition switch becomes disconnected, the engine

Fuel injection systems, compared to carburetor systems, are generally considered to be

The operating principle of float-type carburetors is based on the

One advantage of fuel injection systems over carburetor systems is

The presence of carburetor ice in an aircraft equipped with a fixed-pitch propeller can be verified by applying carburetor heat and noting

The first indication of carburetor ice in an aircraft with a fixed-pitch propeller is

Which condition is most favorable to the development of carburetor icing?

The first indication of carburetor icing in an aircraft equipped with a constant-speed propeller would most likely be a

Concerning carburetor icing, which statement is true?

The low temperature that causes carburetor ice in an engine equipped with a float-type carburetor is normally the result of the

Generally speaking, the use of carburetor heat tends to

In an aircraft equipped with a fixed-pitch propeller and a float-type carburetor, the first indication of carburetor ice would most likely be

Carburetor ice

Leaving the carburetor heat on during takeoff

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

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

During which stroke of a reciprocating engine is the gaseous mixture expanding within the cylinder?

Fuel and exhaust enter and exit a 4-cycle engine

Four-cycle engines are lubricated by

Many 4-cycle engines utilize what type of lubrication system?

Which statement is true regarding fouling of the spark plugs of an aircraft engine?

Fuel/air ratio is the ratio between the

Proper mixture control and better economy in the operation of a fuel injected engine can be achieved best by use of

The main purpose of the mixture control is to

When the pilot leans the mixture control, what is being accomplished?

The best power mixture is that fuel/air ratio at which

As flight altitude increases, what will occur if no leaning is made with the mixture control?

The basic purpose of adjusting the fuel/air mixture control at altitude is to

The pilot controls the air/fuel ratio with the

At high altitudes, an excessively rich mixture will cause the

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

Fouling of spark plugs is more apt to occur if the aircraft

What is the main reason fuel tank vents must be open? To allow

During preflight, the fuel vent system should always be checked

Detonation in an aircraft engine is most likely to occur whenever the

The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as

If the grade of fuel used in an aircraft engine is lower than that specified, it may cause

Detonation occurs at high power settings when the

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

Detonation occurs in a reciprocating aircraft engine when

Detonation can be caused by

Detonation occurs in a reciprocating aircraft engine when

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

The amount of water absorbed in aviation fuels will

Running a fuel tank dry before switching tanks is not a good practice because

When refueling aircraft, which precaution would be adequate for eliminating the potential hazard of static electricity?

Concerning the advantages of an aircraft generator or alternator, select the true statement.

An electrical system failure (battery and alternator) occurs during flight. In this situation, you would

What precautions should be taken with respect to aircraft oxygen systems?

What type of oxygen should be used to replenish an aircraft oxygen system?

What type of oxygen system is most commonly found in general aviation aircraft?

What is the purpose of the rebreather bag on an oxygen mask in a continuous-flow system?

Which statement is true regarding preheating of an aircraft during cold-weather operations?

Crankcase breather lines of an aircraft engine should receive special attention during preflight in cold weather because they are susceptible to being clogged by

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