(refer to figure 34.) you have 80 gallons of usable avgas. you know it takes 20 gallons of
avgas for start, taxi, takeoff, descent, and landing. what would be your maximum cruise flight
time with day, vfr reserves?
given:
pressure altitude 6,000 ft
temperature 3 °c
power 2,400 rpm - 24" mp
a) 2 hours and 47 minutes.
b) 3 hours and 30 minutes.
c) 3 hours and 58 minutes.

Asimply supported beam abc of length l has ab of length hl and second moment of area / and bc of length hl and second moment of area i2. determine the strain energy stored in the beam when it is subject to a vertical load f at its midpoint and the consequential central deflection.

An inventor claims to have developed a reversed heat engine (ie. a heat pump) which is able to deliver 10 kj heat into the room at 20°c from outside ambient temperature of -10°c by consuming only 2 kj electricity in winter. this claim is a)-impossible b)-possible only if the heat pump is ideal c)-practically possible d)-unable to be assessed as it depends on the working fluid used in the heat pump.

Steam enters a converging-diverging nozzle at 1.0 mpa and 500°c with a negligible velocity at a mass flow rate of 2.5 kg/s, and it exits at a pressure of 200 kpa. assuming the flow through the nozzle to be isentropic, determine: the exit area and (a) (b) the exit mach number