Embry ASCI310 Module 9.4.1 - Final Exam Part 1 latest 2016 December

Question # 00456599 Posted By: katetutor Updated on: 01/05/2017 07:23 AM Due on: 01/05/2017
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Question 1

0 / 5 pts

What are the "basic units" in the British Gravitational System (BGS) for Energy?

ft/sec

ft-lb

ft-lb/sec

lb-sec

None of the above (neither A, B, C, or D)

Question 2

0 / 5 pts

Find the Potential Energy (ft-lb) of an aircraft weighing 300,000 lbs at 5,000 ft true altitude and 200 KTS True Air Speed.

1.5 x 109 ft-lb

6 x107 ft-lb

1 x 106 ft-lb

4.67 x 107 ft-lb

Question 3

5 / 5 pts

How does a decrease in Density altitude affect parasite and induced drag airborne?

Decreases both parasite and induced Drag

Density altitude does not affect drag

Increases Parasite Drag and decreases Induced Drag

Decreases Parasite Drag and increases Induced Drag

Question 4

0 / 5 pts

Find Glide Angle at Best L/D

Given:

Weight: 300,000 lb

Wing Area: 3050 ft2

Altitude: Sea level

Temperature: Standard

CL vs. AOA Curve Figure 4.3

CL vs. CD Curve Figure 4.12

Configuration: Flaps-30 Gear Down

8 .02 deg

5.5 deg

1.37 deg

7.13 deg

Question 5

0 / 5 pts

Find best Lift-to-Drag ratio.

Givens:

Weight: 300,000 lb

Wing Area: 3,050 ft2

Altitude: Sea level

Temperature: Standard

CL vs. AOA Curve Figure 4.3

CL vs. CD Curve Figure 4.12

Configuration: Flaps-30, Gear Down

15:1

20:1

8:1

10:1

Question 6

0 / 5 pts

In order to maximize cruise range the pilot or aircraft designer should do want with the CG?

Move the CG as far aft as possible

Move the CG as far forward as possible

CG has no affect on Range; so do nothing

Move the CG as high as you can

Question 7

0 / 5 pts

What is the maximum allowable payload for this flight considering the following information?

Given:

Basic operating weight: 100,500 lb.

Maximum zero fuel weight: 138,000 lb.

Maximum landing weight: 142,000 lb.

Maximum takeoff weight: 184,200 lb.

Fuel tank load: 28,000 lb.

Estimated fuel burn en route: 25,000 lb.

37,500 lb.

38,500 lb.

55,700 lb.

27,500 lb

Question 8

0 / 5 pts

How is turbojet Thrust Specific Fuel Consumption (TSFC) affected by outside air temperature?

TSFC decreases with decreasing temperature

TSFC is unaffected by changes in temperature

TSFC increases with decreasing temperature

Question 9

5 / 5 pts

Find Fuel Flow to maintain Level Flight.

Given:

Weight: 250,000 lb

Altitude: FL250

Temperature: Standard

Airspeed: Best Endurance

CL vs. CD Curve Figure 4.5

Turbofan Thrust Figure 6.5

Configuration: Flaps 0

8575 lb/hr

6500 lb/hr

6875 lb/hr

13,000 lb/hr

Question 10

0 / 5 pts

Find Thrust Specific Fuel Consumption (TSFC).

Givens:

Altitude: FL250

Temperature: Standard

Airspeed: 0.55 Mach

Turbofan TSFC Figure 6.5

0.55

0.32

0.42

0.60

Question 11

5 / 5 pts

What is the speed of sound at sea level on a standard day?

573.80 KTAS

603.23 KTAS

661.74 KTAS

Question 12

0 / 5 pts

Find Temperature Ratio at Cruising Altitude.

Givens:

Cruising Indicated Altitude:FL 350

Outside Air Temperature at altitude: -40 deg C

Atmosphere Table 2.1

0.8091

0.7594

0.2353

0.8253

Question 13

5 / 5 pts

Given a standard day, at what altitude is the true airspeed of an aircraft approximately twice what the airspeed indicator reads?

sea level

18,000 ft MSL

20,000 ft MSL

40,000 ft MSL

Question 14

0 / 5 pts

Find Equivalent Airspeed (KEAS).

Given:

Pressure Altitude: FL350

Indicated Airspeed: 250 KIAS

Atmosphere Table 2.1

Compressibility Correction Figure 3.2

Position error correction Figure 3.1

240 KEAS

236 KEAS

260 KEAS

264 KEAS

Question 15

0 / 5 pts

What factor causes an increase in the airspeed envelope of a transport aircraft?

Decreased Weight

Increased available thrust

A & B above

Question 16

5 / 5 pts

In preparing Range and Endurance Performance Charts, what the four most important parameters?

Fuel Flow, Color of airplane, Mass, and Airspeed

Weight, Passenger loading, Altitude, and Airspeed

Fuel Flow, Weight, Pressure Altitude, and Airspeed

Sea level Pressure, Weight, Fuel Flow and Airspeed

Question 17

0 / 5 pts

What method of flight test is used to determine V2, Vx and Vy?

Saw tooth Climb

Maximum Unstick tests

Fuel Flow vs Weight

Vmc

Question 18

0 / 5 pts

Find Fuel Flow One Engine.

Given:

Weight: 300,000 lb

Cruise Chart Figure 12.8

Temperature: ISA +10 deg C

Pressure Altitude: FL 350

4983 lb/hr

5267 lb/hr

5132 lb/hr

5832 lb/hr

Question 19

0 / 5 pts

Find V1, VR , V2.

Givens:

Transport Takeoff Chart: Figure 9.19

Pressure Altitude: 5,000 ft

Temperature: 30 deg C

Configuration: Flaps 15

Weight: 300,000 lb

No wind

129, 134, 142

134, 137, 142

136, 141, 148

132, 135, 142

Question 20

0 / 5 pts

Find Descent Time (min) using the profile found on Figure 10.11 from FL350.

21 min

25 min

23 min

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