III B.Tech II Semester Supplementary Examinations, April/May 2005 AEROSPACE STRUCTURES-II (Aeronautical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. Calculate the internal shear flow for the multcell tube system subjected to a torsion of 10,000 N-cm, for 1 mm thick section cells as shown. Take G = 20 Gpa.
2. What is a Neuber tube? Show that a thin walled circular tube of constant thickness is a Neuber tube. 3. Describe Gerard’s method of calculation of crippling stress. 4. Write short notes on (a) Inter-rivet buckling stress (b) Sheet effective width. 5. Locate the shear center ‘O’ for thin unbalanced I – section shown in figure. Assume thickness ‘t’ constant throughout the section.
6. Write short notes on (a) Stress resistant web beams (b) Wagner beams.
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NR
Code No: NR322102
7. A beam of rectangular section, 80 mm wide and 120 mm deep is subjected to a BM of 120 N-m. The trace of the plane of loading is inclined at 450 to the V-V axis of the section. Locate the neutral axis of the section. Find the bending stress by neutral axis method. 8. Figure shows the regular hexagonal cross-section of a thin walled beam of sides ‘a’ and constant wall thickness ‘t’. The beam is subjected to a traverse shear force ‘S’, its line of action being along a side of the hexagon as shown. Find the rate of twist of the beam in terms of ‘t’, ‘a’ and ‘s’ and shear modulus ‘G’. Plot the shear flow distribution around the section, with values in terms of ‘S’ and ‘a’.
Figure shows the regular hexagonal cross-section of a thin walled beam of sides 'a' and constant wall thickness 't'. The beam is subjected to a traverse shear force 'S', its line of action being along a side of the hexagon as shown. Find the rate of twist of the beam in terms of 't', 'a' and 's' and shear modulus 'G'. Plot the shear ...
Calculate the internal shear flow for the multcell tube system subjected to a torsion of 10,000 N-cm, for 1 mm thick section ... BM of 120 N-m. The trace of the plane of loading is inclined at 450 to the V-V axis of the section. Locate the neutral ax
(b) Distinguish between deterministic test pattern generation and probabilistic ... circuit by inserting addition control logic to the following function, obtain the.
250 kN and a minimum value of 100 kN. The properties of the plate material are as follows: · Endurance limit stress = 225 MPa, and yield point stress = 300 MPa.
1.a) Explain with a neat sectional view the operation and advantages of hot blast · cupola. b) Discuss the various types of refractories used for cupola lining.
W/mk] followed by a 25mm layer of fiber-glass insulation [k=0.048 W/mk]. ... boundary layer thickness in the heat transfer over a flat plate tested over its entire ...
5.a) What is sine bar. Sketch an arrangement for any one of the applications. b) Describe the constructional features and working of optical collimator.
3.a) Define a page fault. Explain various steps required to bring a desired page? b) Describe the process of segmentation? 4.a) What are the desirable ...
(b) Discuss and analyze about all the allocation strategies in run-time storage environment . 6. ... (a) Define Address Descriptor and Register Descriptor. (b) Why ...
b) With the help of a neat sketch of psychometric chart show the various psychrometric · processes naming them clearly. c) Explain what effective temperature is ...
The maximum tensile or compressive stress is not to exceed 56 MPa. 2. (a) Discuss the effect of keyways on shafts . (b) A 15kW , 960 rpm motor has a mild steel ...
Code No: NR320802. NR ... 1. (a) Define reaction rate constant. Develop an expression that facilitates calcula- · tion of units of rate constant for any order.
c) Determine the symmetrical components of currents in the following circuit · (contdâ¦3) · AjntuWorld. ... a) Synchronous phase modifiery · b) Insulating materials.
Write a short note on 'compressor surge and its prevention'. 6.a) In rocket propulsion, explain the following: · (i) Thrust coefficient (ii) Characteristic velocity (iii) Specific impulse. b) Derive the 'Generalised Thrust Equation, of a rocket from
Code No: 320452. III-B.Tech II-Semester Supplementary Examination December2002/January 2003 · LINEAR DIGITAL I.C.APPLICATIONS · (Common to Electronics and Communication Engineering, · Electronics and Control Engineering, Electronics Instrumentation ·
IRON PRODUCTION · (Metallurgy and Material Technology) · Time: 3 Hours · Max. Marks: 70 · Answer any FIVE questions · All questions carry equal marks · - - - · 1. Describe the historical evidence of iron making processes? 2. What are the various refr
with 64 addressing modes. The computer has 500 instructions. In one of the · instruction format the First Field represents operator field, Second Field is Mode,.
POWER SYSTEMS-III · (Electrical & Electronic Engineering) · Time: 3 hours ... 1. Discuss the behaviour of traveling wave when it reaches the end of ... (b) Explain the selection of surge arresters with reference to switching surges . [ 8+8].
b) Realize hybrid redundancy with triple modular redundancy core. 4.a) With an example explain the practical fault tolerant system? b) How do you enhance the ...
1. a) With a schematic diagram explain the operation of a hot blast cupola. What is its · application? b) How are the refractories classified? Explain the factors in ...
b) Derive an expression for the heat loss per square metre of the surface area for a · furnace wall when the thermal conductivity varies with temperature ...
