multi engine class b Enroute and descent

#1. For a multi-engine class B aeroplane, the en-route phase extends from:

• A1,000 ft above the take-off surface to 1,500 ft above the landing surface.
• B1,500 ft above the take-off surface to 1,000 ft above the landing aerodrome level.
• CFrom the start of level flight to the end of level flight.
• D50 ft above the take-off surface to 1,500 ft above the landing aeroplane level.

#2. Following engine failure in the cruise, what is the name given to the descent procedure from the cruise altitude to the one engine inoperative ceiling?

• ADescent profile.
• BDescent procedure
• CDriftdown
• DEmergency descent.

#3. Why does the descent profile of the driftdown procedure steadily become shallower?

• AAs density increases, the remaining engine generates more thrust.
• BDrag starts to decrease towards the end of the driftdown procedure.
• CWeight apparent thrust decreases with increasing density.
• DThe increase in gravitational acceleration causes the weight apparent thrust to increase.