Tough questions...
Here are some real doozies I've been asked since I started my training...
You apply Carb heat during the runup and the RPM increases...What does this indicate?
You lose hydraulic pressure and the gear pump is inop...What will the gear do? Is there any way to lower it?
You lower flaps and discover that the settings are split...What do you do?
When you cycle the prop during the runup, does the MP increase, decrease, or stay the same? Why?
Can you lean out an engine with a constant speed prop without an EGT or a fuel flow guage at altitude? If so, how?
You encounter icing at cruise...Do you climb or descend to avoid the ice buildup? Why one and not the other?
Describe what happens to the prop when oil pressure is lost...
The static port(s) are iced over and there is no alternate static source in the cockpit...Is there any way to supply static pressure to the altimeter? If so, how is it done?
Is there any other instrument that will give an approxamate indication of altitude?
While climbing out after takeoff, you pitch for Vy and notice the airspeed is continually increasing...What does this indicate?
Why do aft CG loadings increase fuel efficiency in comparison to forward CG loadings? How does this affect overall stability?
What is the difference between a loadmeter, ampmeter, and a voltmeter?
Why does the battery have a lower total voltage than the electrical system?
What are the three types of hydroplaning and when is each likely to occur?
You have an electrical malfunction and shut down the alternator...What effect, if any, will this have upon the magnetic compass?
You are in cruise when you realize you have runaway trim...How do you maintain aircraft control?
The throttle is stuck in the full open position...How do you land at the airport?
You are on final approach and you get rolled to a 80' degree bank from wake turbulence...How do you recover?
What is the difference between a slot and a slat?
What are the differences between leading edge flaps and trailing edge flaps?
What happens when the airframe itself is "failed"?
How many counterweights are there on the aircraft?
Is it possible to do a complete roll and keep the engine running? (No using the boost pump)
You find out your rudder is jammed full left in flight...What effect, if any, will this have on the position of the nose wheel when you finally land?
Right about here is where the examiner looks at you and says
"Are we having fun yet?"