B.TechSemester 32022-23Engineering MechanicsKOE-031

Engineering Mechanics (KOE-031) - AKTU Question Paper 2022-23

B.Tech · Semester 3 · Free PDF Download

This is the official AKTU Engineering Mechanics Previous Year Question Paper for B.Tech Semester 3, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 3

Session:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Engineering Mechanics (KOE-031) — complete question paper

Section AAttempt all questions in brief. 2 x 10 = 20

a
What is the difference between collinear and concurrent forces ?
b
State the concept of impending motion
c
Explain perfect and imperfect truss
d
Define point of contraflexure
e
Differentiate between centroid and centre of gravity
f
State parallel axis theorem
g
Distinguish between relative velo city and resultant velocity
h
State work energy equation. (i) Define the term strain energy. (j) What do you understand by the term section modulus?

Section BAttempt any three of the following: 10x3=30

a
A smooth weightless cylinder of radius 600 mm rests on a horizo ntal plane and is kept from rolling by an inclined string of length 1000 mm. A bar AB of length 1500 mm and weight 1200 N is hinged at A and placed against the cylinder of negligible weight. Determine tension in the string shown in Figure 1. Fig. 1
b
For the overhanging beam shown in figure 2. Draw its shear forc e and bending moment diagram. Fig. 2
c
Locate the centre of gravity of the right circular cone having radius R and height
d
Three loads W, 2W and 3W are connected by a weightless inex tensible string passing over a smooth pulley as s hown in figure3. The coefficie nt of friction between table and the weights is 0.15. What is acceleration of w eight W and the magnitude of tension in the string connecting the weight 2W and 3W. Fig. 3
e
State the assumptions used in simple bending and derive the bending equation

Section CAttempt any one part of the following: 10x1=10

a
Define and explain the terms: Pri nciple of equilibrium, force law of equilibrium and moment law of equilibrium
b
An effort of 180 N is required just to move a certain body up a n inclined plane of angle 15 0, the force being parallel to the plane. If the angle of inclin ation of the plane is made 20 0, the effort required, again app lied parallel to the plane, is found to be 210 N. Find the weight of the body and co-efficient of friction
a
For the truss shown in the figure 4, the forces F 1 a n d F2are 9 kN and 3 kN respectively. The force (in kN) in the member QS is (All dimensions are in m)
b
Drawshear force and bending moment diagram for the cantilever b eam loaded as shown in figure 5. Fig. 5
a
A semicircular area is removed fr om a trapezium as shown in fig ure 6determine the centroid of the remaining area. Fig. 6
b
Find the moment of inertia of the shaded area (figure 7) with r espect to the centroidal axis parallel to AB. Fig. 7
a
A 10 gm bullet is shot horizontally in a wood block of mass 1 k g. the bullet gets embedded in the block and the block is displaced on a rough hor izontal table (µ = 0.2) through 1 m. What was the velocity of bullet?
b
Two disc A and B with identical mass (m) radius (R) are initial ly at rest. They roll down from the top of identi cal inclined planes without sli pping. Disc A has all of its mass concentrated at the rim, while Disc B has its m ass uniformly distributed at the bottom of the plane, determine the ratio of velocity of the center of disc A to the velocity of the center of the disc B
a
Determine the diameter of rod 200 m long length vertically and subjected a axial p u l l o f 3 2 5 k N a t i t s l o w e r e n d i f i t s w e i g h t p e r c u b i c m e t e r is 80 kN and working stress is 75 MPa. Also de termines the total elongation of rod. Take E = 210 GPa
b
A hollow shaft of 1 m length is d esigned to transmit a power of 30 kW at 700 rpm. The maximum permissible angle of twist in the shaft is 1 0. The inner diameter of the shaft is 0.7 times the outer diameter. The modu lus of rigidity is 80 GPa. Calculate the outside diameter of the shaft

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

Repeated Questions — KOE-031

Questions that appeared in more than one session, found by comparing 2 years of Engineering Mechanics papers (2021-22, 2022-23)

What is the difference between collinear and concurrent forces ?

Appeared in: 2021-22 · 2022-23

Drawshear force and bending moment diagram for the cantilever b eam loaded as shown in figure 5. Fig. 5

Appeared in: 2021-22 · 2022-23

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