S. S.
Education Trust ‘s CET Code: E-175 (UG)/T-942 (PG)
S. G. BALEKUNDRI INSTITUTE OF TECHNOLOGY
Shivabasavanagar, Belagavi- 590 010, Karnataka- India
Office: 0831-2407172, 2554559 Fax: 0831-2407152 Website: www.sgbit.edu.in
Department of Mechanical Engineering
Email: hod-mech@sgbit.edu.in , Department Extension:
Form No: SGBIT/Exam/2019-20/3 Revision: R1 w.e.f: 27/9/2019
CONTINUOUS INTERNAL EVALUATION III – (2017/2018 CBCS SCHEME)
B.E (Mechanical Engineering)
Code: 17ME64 Course: DME-2 Semester: VI A, B Max. Marks: 30
Date: 11/06/20 Duration: 60 Mins Course Coordinator: Prof. S N Malagi/Prof. V V Patil
NOTE: Answer Any ONE Full Question from each SECTION
Q.
SECTION A MARKS CO RBT PO
No.
A leather belt 125 mm wide 6mm thick transmit
power from a pulley of diameter 750mm at 500r.p.m.
angle of lap for smaller pulley is 1500,coefficient of
1a. 07 2 3 1,2,3,12
friction is 0.3, mass of the belt is 1000kg/m3 and the
permissible stress is 2.75 MPa. Find the maximum
power that can be transmitted.
It is required to design a V belt drive to connect a 7.5
KW, 1440r.p.m.induction motor to a fan running at
1b. 08 2 3 1,2,3,12
approximately 480rpm for a service of 24hrs/day
space is available for a center distance about 1m.
OR
2a. Select a suitable size of wire rope to lift a cage of
vertical mine hoist of 100m deep. The cage weighs
07 2 3 1,2,3,12
5KN and it has to lift 10KN of ore at a speed of
120m/min. The maximum speed is attained in 1 sec.
2b. Select a suitable roller chain electric motor to transmit
6KW power from an air compressor. The speed of the
motor and compressor are 900r.p.m. and 375rpm
08 2 3 1,2,3,12
respectively. The approximate distance between the
sprockets is 600mm. Take a factor of safety based on
load as 6.
SECTION B
3a. A single plate clutch, effective on both sides, is
required to transmit 25 kW at 3000 r.p.m. Determine
the outer and inner diameters of frictional surface if
the coefficient of friction is 0.255, ratio of diameters is
07 4 3 1,2,3
1.25 and the maximum pressure is not to exceed 0.1
N/mm2. Also, determine the axial thrust to be
provided by springs. Assume the theory of uniform
wear.
3b. Multiple disc clutch, steel on bronze, is to transmit
4.5 kW at 750 r.p.m. The inner radius of the contact
is 40 mm and outer radius of the contact is 70 mm.
The clutch operates in oil with an expected coefficient
of 0.1. The average allowable pressure is 0.35 08 4 3 1,2,3
N/mm2. Find : 1. The total number of steel and
bronze discs; 2. the actual axial force required; 3. the
actual average Pressure; and 4. The actual maximum
pressure.
OR
4a. The block brake, as shown in Fig., provides a braking
torque of 360 N-m. The diameter of the brake drum is
300 mm. The coefficient of friction is 0.3.
Find :
1. The force (P) to be applied at the end of the lever for
the clockwise and counter clockwise rotation of the
brake drum; and
2. The location of the pivot or fulcrum to make the
brake self locking for the clockwise rotation of the
brake drum.
15 4 3 1,2,3,12
All dimensions are in mm.
COURSE OUTCOMES (COs)
Acquire knowledge of applying engineering fundamentals to product design
C414.1
having curved sections & cylinders and cylinder heads
C414.2 Comprehend usage of Engineering fundamentals to design mechanical
systems involved springs ,subjected to static and dynamic loading and also
selection of transmitting elements like flat belts, V-belts, chain drives
& rope drives
C414.3 Explain design procedure of different types of gears using knowledge of
mathematics, Engineering fundamentals for complex problems
C414.4 Select the design procedure of worm gears, brakes and clucthes using
engineering fundamentals for complex problems
C414.5 Illustrate the design procedure of hydrodynamic bearings (journal bearing)
using engineering fundamentals for different applications.
C414.6 Select antifriction bearings for different applications using the
manufacturers, catalogue
REVISED BLOOMS TAXONOMY LEARNING LEVEL (RBT)
L1: Remember L2: Understand L3: Apply L4: Analyze L5: Evaluate L6: Create
PROGRAM OUTCOMES (POs)
1 Engineering Knowledge 5 Modern tool usage 9 Individual and Team-
Work
2 Problem Analysis 6 The Engineer and 10 Communication
Society
3 Design / Development of 7 Environment and 11 Project Management
Solutions Sustainability and Finance
4 Conduct Investigations of 8 Ethics 12 Life-long Learning
Complex problems
Course Coordinator Dept. IQAC Coordinator
