Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech Aero (Aerospace-Engg) 2020 March 7th and 8th Sem ANE 413 Airplane Design Previous Question Paper
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ANE) (Sem.?8)
AIRPLANE DESIGN
Subject Code : ANE-413
M.Code : 70495
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
1. Distinguish between the following terms (use sketches wherever required) : (10?2)
a. Anhedral &dihedral angle.
b. Camber & camber line.
c. Wash-in & wash-out.
d. Critical & drag divergence Mach number.
e. Low & high wing loading.
f. Equivalent airspeed & true airspeed.
g. Geometric & aerodynamic twist.
h. Range & endurance.
i. Slat & slot.
j. Trim & stability.
SECTION-B
2. Explain the ?gust envelope? of a typical fighter aircraft with help of a neat & labeled
diagram. (5)
3. Explain the features of various types of inlets used in high subsonic & supersonic
aircrafts with the help of neat and labeled sketches. (5)
FirstRanker.com - FirstRanker's Choice
1 | M-70495 (S2)-1173
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ANE) (Sem.?8)
AIRPLANE DESIGN
Subject Code : ANE-413
M.Code : 70495
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
1. Distinguish between the following terms (use sketches wherever required) : (10?2)
a. Anhedral &dihedral angle.
b. Camber & camber line.
c. Wash-in & wash-out.
d. Critical & drag divergence Mach number.
e. Low & high wing loading.
f. Equivalent airspeed & true airspeed.
g. Geometric & aerodynamic twist.
h. Range & endurance.
i. Slat & slot.
j. Trim & stability.
SECTION-B
2. Explain the ?gust envelope? of a typical fighter aircraft with help of a neat & labeled
diagram. (5)
3. Explain the features of various types of inlets used in high subsonic & supersonic
aircrafts with the help of neat and labeled sketches. (5)
2 | M-70495 (S2)-1173
4. Explain the various factors affecting the selection of airfoil section and wing planform. (5)
5. Calculate the stroke of oleo-type shock absorber with the help of data given below for an
aircraft making a touchdown on a runway at sea level at forward and vertical speeds of
35m/s and 5 m/s respectively.
Rolling radius = 40cm Wheel width = 20 cm Wheel diameter = 90 cm
? = 0.8 Tire efficiency = ?
?
= 0.45 Gear Load factor = N
gear
= 3
Also calculate the weight on wheel for a given pressure of 15 bar. (4,1)
6. What are boundary layer diverters? Give two examples with brief description. (5)
SECTION-C
7. A 250 seated jet aircraft with the following given data is flying at10km altitude. (2,8)
M
cruise
= 0.7 Mach M
loiter
= 0.5 Mach Cruise = 6000 km Loiter = 80minutes
(L/D)
max
= 16 C
cruise
= 0.54/hour C
loiter
= 0.44/hour ? = 0.4135 kg/m
3
P = 26000 N/m
2
W
e
/W
0
= 0.97 W
0
?0.06
W
Payload
= 80000N W
Passenger
= 65 kg/passenger
a. Draw Mission segment.
b. Estimate weight of the aircraft.
8. For the aircraft in Q.7.,
a. Find out the length and diameter of the fuselage. Use length = 0.287*W
0
0.43
where W
0
is in kg. Suggest and sketch the seating arrangement for this aircraft. (5)
b. What will be the %age change in weight if the aircraft is to be designed for additional
payload of 20000 N? (5)
9. Write notes on the following :
a. Airworthiness and its responsibility. (5)
b. Role of composite material in modern aircrafts. (5)
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
FirstRanker.com - FirstRanker's Choice
This post was last modified on 21 March 2020