Commercial – Chapter 2 – Airplane Instruments, Engines, and Systems

Which statement is true about magnetic deviation of a compass? Deviation

Maximum structural cruising speed is the maximum speed at which an airplane can be operated during

Why should flight speeds above VNE be avoided?

Refer to figure 5 below. The horizontal dashed line from point C to point E represents the

Refer to figure 5 below. The vertical line from point E to point F is represented on the airspeed indicator by the

Refer to figure 5 below. The vertical line from point D to point G is represented on the airspeed indicator by the maximum speed limit of the

Refer to figure 5 below.  Point C references

Which airspeed would a pilot be unable to identify by the color coding of an airspeed indicator?

Calibrated airspeed is best described as indicated airspeed corrected for

True airspeed is best described as calibrated airspeed corrected for

What is an advantage of an electric turn coordinator if the airplane has a vacuum system for other gyroscopic instruments?

What is an operational difference between the turn coordinator and the turn-and-slip indicator? The turn coordinator

What is a benefit of flying with a glass cockpit?

What steps must be taken when flying with glass cockpits to ensure safe flight?

An aircraft which is equipped with an Electronic Flight Display (EFD) can

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

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

What will occur if no leaning is made with the mixture control as the flight altitude increases?

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

At high altitudes, an excessively rich mixture will cause the

The pilot controls the air/fuel ratio with the

Fuel/air ratio is the ratio between the

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

The mixture control can be adjusted, which

What effect, if any, would a change in ambient temperature or air density have on gas turbine engine performance?

Which statement is true concerning the effect of the application of carburetor heat?

Applying carburetor heat will

Leaving the carburetor heat on during takeoff

Detonation occurs in a reciprocating aircraft engine when

Detonation can be caused by

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

Detonation may occur at high-power settings when

Before shutdown, while at idle, the ignition key is momentarily turned OFF. The engine continues to run with no interruption; this

A way to detect a broken magneto primary grounding lead is to

The most probable reason an engine continues to run after the ignition switch has been turned off is

A detuning of engine crankshaft counterweights is a source of overstress that may be caused by

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

For internal cooling, reciprocating aircraft engines are especially dependent on

An abnormally high engine oil temperature indication may be caused by

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

Propeller efficiency is the

A fixed-pitch propeller is designed for best efficiency only at a given combination of

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

Which statement best describes the operating principle of a constant-speed propeller?

When referring to a constant speed propeller, the pitch setting is

To develop maximum power and thrust, a constant-speed propeller should be set to a blade angle that will produce a

In aircraft equipped with constant-speed propellers and normally-aspirated engines, which procedure should be used to avoid placing undue stress on the engine components? When power is being

For takeoff, the blade angle of a controllable-pitch propeller should be set at a

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 propeller rotating clockwise as seen from the rear, creates a spiraling slipstream. The spiraling slipstream, along with torque effect, tends to rotate the airplane to the