Noble Group of Institutions, Junagadh.
Faculty of Engineering
Department of Mechanical Engineering
Semester: BE 3rd
Subject: MP-I (2131903)
Faculty: Mr. Pratik Y. Oza
Year: 2016
Class: MA
Assignment
Sr. No.
Question
Marks
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Define machine tool. Classify machine tools in detail. Explain types of
motions in machine tools with Examples.
Explain different factors affecting the tool life.
A cutting tool cutting at 22 m/min, gave a life of 60 minutes between regrinds
when
operating on roughening cuts with mild steel. What will be its
probable life when engaged on light finishing cuts? Take n = 1/8 and 1/10 for
roughening and finishing cuts
Respectively in Taylor‟s tool life equation.
Draw front view, top view and side view of single point cutting tool. Indicate
all elements and important angles on it. Identify following tool signature 814-6-6-20-15-4.
Draw simple sketch of engine lathe. List main parts of it and state functions of
each part.
Write short note on different type of chucks used in a lathe.
Explain in brief different types of Lathe-centers used on tailstock side of a
lathe machine
Explain different operations performed with the help of a lathe.
List the methods of taper turning on lathe machine. Explain different taper
turning methods. State limitations of each method.
Explain difference between capstan & turret lathe.
Explain working of vertical turret lathe.
Explain turret indexing mechanism and bar feeding mechanism both with neat
sketch
Explain „setting of tailstock center for taper turning‟ operation and „thread
cutting‟ operation both with neat sketch.
Explain instruments used in the alignment test of a lathe.
5
Explain in brief various alignment tests carried out on Lathe-Machine to
check accuracy level specified by the supplier.
Draw a neat sketch of a radial drilling machine and name the important
parts.What are advantages of radial drilling machine?
Sketch the twist drill with its nomenclature.
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Explain the difference between: “Multispindle drilling machine “& “Gang
drillingmachine.
Draw a neat schematic diagram of upright drill machine. Describe deephole
drilling.
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Mechanical Engg. Dept. – NGI - Junagadh.
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Noble Group of Institutions, Junagadh.
Faculty of Engineering
Department of Mechanical Engineering
By drawing neat sketches explain following operations which are
performedon drilling machine: (1) Counter boring (2) Counter sinking (3)
Spot-facing (4) Tapping.
Explain various operations carried out on boring machines.
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With the help of neat sketch explain the “Jig Boring Machine” with its
applications.
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What do you mean by precision boring machine? Explain theircharacteristics
features.
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Explain with neat sketch working of horizontal boring machine. State
itsadvantages and limitations.
Explain plain and universal milling.
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Draw a neat sketch with label of following operation and indicate direction of
cutting parameters on it. i) Plain or slab milling ii) Face milling iii) Angular
milling iv) Form milling v) Straddle milling vi) Gang milling vii) End
milling. Viii)Helical milling operation.
Explain the difference between: (1) „Socket‟ & „Sleeve „(2) “Up-milling &
“Down-Milling “(3) Gang-Milling & Straddle-Milling.
Explain with neat sketch up milling and down milling process. Describeits
advantages and limitations.
Enlist different types of milling cutters. Explain T- Slot milling with neat
sketch
Draw neat sketch of column & knee type milling machine. Label themain
parts. State functions of each part.
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Explain in brief the various „Indexing – Methods „used on milling machine
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Explain the elements of plain milling cutter.
Explain the alignment test on milling machine.
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Explain the principle of quick return motion in the shaper. Explain
withworthquick return mechanism.
State comparison of shaper and planer. What are advantages
anddisadvantages of shaping and planning as compared to other operations?
Explain with neat sketch crank and slotted link quick return mechanism in
shaper. And draw velocity diagram.
Explain with neat sketch quick return motion in the hydraulic shaper. What
are advantages and disadvantages of hydraulically driven shaper?
Discus various broaching methods in details with its applications.
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Define broaching. (a) Write advantages, limitation & applications. (b) Define
Sawing. Write advantages, limitation & applications.
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List the principal types of metal cutting saws. Describe working of
reciprocating and circular sawing machine.
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Write advantages, limitations and applications of “Broaching-Machines”.
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Noble Group of Institutions, Junagadh.
Faculty of Engineering
Department of Mechanical Engineering
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With the help of neat sketches explain the “Setting of band saw teeth “.
WithThe help of neat sketch explain the principle of operation of a horizontal
bandSaw machine.
Sketch a typical broach tooth profile and name its elements.
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Explainworking of pull type and push type broaching.
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How grinding wheel is specified? Explain in details.
Grinding wheel characteristics or performance of a grinding wheel dependson
types of abrasive, grain size, structure and bonding material. Discuss theeffect
of each.
Classify surface grinders. Explain with neat sketch the relative work,
grindingwheel and table movements on reciprocating table type surface
grinder.
Explain standard marking system of grinding wheels
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State classification of grinding machine.
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Explain working of universal and plain center type cylindrical
grindingmachines.
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State the marking system for grinding wheels recommended by Bureau of
India Standards (IS: 551-1989).Identify grinding wheel. 220 X 25 X 30 W A
40 L 4 V 18
Explain the following terms: i) Glazing ii) Loading iii) Dressing iv) Truing.
ii) Name & draw neat sketch of various grinding wheel, also write its
application.
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Mechanical Engg. Dept. – NGI - Junagadh.
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