Before shutting off the fuel supply to stop a medium or high–speed diesel engine, why is it necessary to allow the engine to idle for a few minutes?()
When the lights turn red, the traffic()stop.
You executed the following command in the lsnrctl utility to stop the listener: lsnrctl> STOP L1 What is the effect of this command if L1 is the only listener configured for your database?()
Before the first non-stop flight made in l949, it ______ necessary for all planes to land for refueling.
I saw a ship stop at a(). Which of the following is not correct?
Do you know()at the bus stop?
Stop search and return to().
How should you signal the crane operator to stop in an emergency?().
The gooseneck is (). Stop using it at once.
A few spots of turbocharger can be caused by() ①crash stop of engine ② rapid increased of engine speed