What is powder metallurgy, and why is it better than High Speed Steels?Powder metallurgy is a process where each element to make the steel is processed into a fine powder then mixed and pressed together then heated to produce a high grade alloy steel that could not be made in a conventional manor. CPM 10V (A-11) was made for the industral world, it is used for high wear applications in dies or centerless grinders for example. They have found the hardest and therefore the most abrasion resistant carbides typically found in tool steels are the vanadium carbides, this steel has 9.75% vanadium. M2 for example has less than 2% vanadium. Why is it better than HHS? In short, the process to make the steel and the vanadium content. Therefore the cost to produce this steel is 2-3 times higher than HHS.

Do you need special grinding wheels to sharpen this steel?No! Any grinding wheel that you use now will work.

As a new turner can I start with quality tools or do I buy a cheap set of tools?Yes you can start with quality tools if you follow these steps. First buy a Oneway Wolverine jig and Vari-grind attachment, go to Woodcraft and buy a 8" slow speed grinder, they are on sale all the time. This is a one time buy that will eliminate all problems sharpening your tools. Next download the sharpening guide, read it! Now place the tool in the Vari-grind with the grinder OFF place the tool against the wheel and pratice the side to side sweeping motion needed to grind the cutting edge. To learn how to grind using these tools will waste about 1/4 inch of steel, the secret is a very light touch and that is learned. Cost is about 5 bucks. If you need help contact me by email or phone.

The cost to learn with a good tool.One good tool is worth more than a bunch of cheaper tools. Most professionals only use a couple of tools all the time, tools that they have learned to use well. When starting out ONE 1/2 inch bowl gouge is enough to turn a 12 inch bowl then you add another when you see a need. The cost to learn on a good tool is low when you break it down. -The cost of a 1/2 bowl gouge is $50 -Useable flute length say 4 inches. Cost $12.50 per inch -It can be ground say 50 times per inch. Cost $.25 per grind. -Make a huge mistake and lose a 1/4 inch. Cost $3.12 This is a small price to pay... NOW to compare it with something else we use all the time... sandpaper ONE 2 inch disk is $.20

As a new turner what tools should I buy first?First of all don't buy a lot of tools, stick with the basic tools to turn a bowl. As you learn more you will see a need to add another but don't waste your money on a set. The basic tools are a 3/8 & 1/2 bowl gouge, this is more than enough to turn a 12 inch bowl. The flute shape is a different question, if you ask 100 turners what shape to use you'll get 101 different answers. Ask me I'll say the V shape flute is the best but if you have a friend that is willing to teach you how to turn use the same shape that they do. I'll talk about this more in another question.

The tools are sold UNhandled, what do you recomend?For my personal turning I like a custom made extra long metal handle to turn hats. You could make a wood handle in no time at all, Ron McKinley was kind enough to provide step by step instructions. (Click on HANDLES) Any aftermarket handle will fit the tools but here are a few I like.Dave Peebles (see links page) Dave has a aluminum core vinyl wrapped handle for $35 Trent Bosch ( see link page) sells a aluminum handle that can be filled with shot to any weight needed.Michael Hosaluk has a aluminum and a steel handle to fit your needs.

Cryogenics, why is it so important?This is very involved so let's keep it simple. When steel is first hardened the structure of the steel changes to form austinite which is very brittle. We want to change the austinite that's brittle to a hard structure call martensite, to do this the steel needs to be tempered. This is done by heating the steel then allowing it to cool at a very slow rate. When the austinite is changed to martensite by tempering carbides are formed of each element of the steel. We want vanadium carbides to form and we want lots of them in our steel so after the first temper with heat the steel goes into a cryogenic treatment. Cryogenics is part of the tempering process but when the austinite is changed to martensite by freezing lots and lots of very fine carbides form called "eta" carbides, these are the carbides that we want.

This steel is tripled tempered with heat and a cryogenic treatment after the first temper, what is this? The first temper with heat changes some of the austinite over, then the cryogenics gets a whole bunch more and the second temper with heat is just to make sure all the austinite is gone. The third temper with heat changes all the martensite we just created to "tempered martensite" and that was the goal. It gets no better than this!

Shanks and Tangs?First of all a shank is round like on a bowl gouge and a tang is flat on scrapers and skews. Why is the shank on all bowl and spindle gouges are turned down to a common fractional size? This is because high quality tool steel is sold .015 oversize so the shank needs to be turned down to a common size to fit all the aftermarket handles and so a common drill bit can be used to bore a wood handle. Example; a 1/2 diameter tool will have a shank that measures .500What is the shank length? On the 3/8 and ½ diameter tools the shank is 2 inches long. The 5/8 and ¾ diameter tools are 2-1/2 inches in length.The 1” and 1-1/4” tools have a ¾ inch diameter shank that is 2-1/2 inches long.All tangs are 2 inches long.

American or European standard to measure the tool?We use the American standard to measure the tools, that is by the diameter of the steel. The European standard measures across the flute. In a world where we use both it does get confusing at times. Here’s a simple chart to show both.American ----- European3/8 ------ ¼½ ------ 3/85/8 ------ ½¾ ------ 5/87/8 ------ ¾1 -------- 7/8

V Shape or U Shape that is the question!If you ask 100 people the same question you’ll get 101 different answers. I prefer a V shape because the V shape flute can be very aggressive when roughing especially on green wood. When you need to remove a lot of stock when roughing a bowl or turning a hat where 99% of the blank ends up as shavings the V shape is the only way to go. The small nose radius is not grabby when entering a cut and can be used to create details. Because the wings tend to be longer on a V shape tool scraping is easily done on the outside of a bowl. In the past a V shape flute was known to clog with shavings, the design of this flute was changed so it doesn’t happen.The U shape flute has some strong points especially when turning dry wood. The large nose radius allows the tool to shear the wood which is good to prevent tear out, the finish cut inside a bowl or long sweeping curves outside a turning are just two examples where this tool excels.

The grind?All tools come sharpened with a basic grind done on a Oneway Wolverine jig. What this means is a useable grind that is a good starting point and can be modified after you receive the tool. Many grind the wings back on the bowl gouges to create a longer cutting edge or change the nose angle slightly.

"Success is never achieved by the size of our brain,But, it is always achieved by the size of our tries and thoughts"

1.A finish cut is given to improve the surface finish of a rough milled workpiece?A.Decrease cutting speed, feed rate and depth of cut B.Increase feed rate, depth of cut and reduce cutting speedC.Increase feed rate, depth of cut and cutting speed D.Increase cutting speed, reduce feed rate and depth of cutAns: D

2.The normal module of a helical gear with real module (m) of 6.62 and having an angle of 25 deg is?A.6.62 x sin 25 deg B.6.62 x cos 25 deg A.6.62 x tan 25 deg A.6.62 x cot 25 deg Ans: B

3.Thread ring gauges are used check external threads. Separate 'Go' and 'No Go' gauging members are provided. Which one of the following screw thread elements is not checked with the ring gauges?

A.Pitch B.Helix angle C.Profile D.Pitch diameterAns: B

4.Morse taper is one of the internationally accepted standard tapers.  The morse taper are available in numbers from?A.0 to 7 B.0 to 8 C.1 to 7 D.1 to 8

Ans: A

5.A gear wheel has 36 teeth (z) and 3 mm module (m) its pitch diameter cutter?A.12 mm B.75 mm C.80 mm D.108 mm

Ans: D

6.A main purpose of using worm and worm wheel drives in machines and their accessories is to?A.Transmit large torque B.Provide large speed reduction from worm shaft to worm wheelC.Transmit higher speeds D.Provide large speed reduction from worm wheel to worm shaftAns: B

7.The tooth thickness of rack is measured by?A.Universal vernier caliper B.Gear tooth vernier caliper C.Flange micrometer D.Gear tester

Ans: B

8.There are two types of milling processes based on the direction of cutter rotation and work feed direction in up cut milling?A.The work is fed in the same direction as the rotation of the cutter B.Chip removal starts at the thickness partC.Machine with backlash eliminator is essential D.The work is fed against direction of the cutter rotationAns: D

9.A Shaft is turned in one finish cut which one of the following parameters will directly influence the machining time?A.Cutting depth B.Setting angle C.Diameter of work piece D.Tool travel distance

Ans: D

10.In a planning machine the depth of cut is given by?A.Adjusting tool slide B.Rotating the feed screw of the tool holderC.Moving cross slide D.Lifting the work piece Ans: B

11.You have to machine a flat surface on a work piece of two metres length.  Which machine will you choose for this?A.Planning B.Slotting C.Milling D.Shaping

Ans: A

12.Why it is necessary to maintain an approach distance between the cutting tool and the work while working on shaping machine?A.To cool down the cutting edge of the tool bit B.To avoid any ridger at the end of workpieceC.To allow the chips to fall and clear the cutting edge D.To enable the clapper box to return to cutting

Ans: D

13.Oil grooves are to be cut in brass half bearings. Which one of the following chisels in suitable?A.Flat chisel B.Cross chisel C.Half round nose chisel D.Web chisel

Ans: C

14.The quality control allows at the most 0.4% defective parts, How many defective parts can be allowed in a production of 500 parts?A.1 B.2 C.10 D.20 Ans: B

15.One which unit the tool setting is done on NC machine?A.On special devices away from the machine B.On the NC machine during idle timeC.On the pre setting devices D.None of above

Ans: C

16.The component of the surface texture upon which the roughness is superimposed is known as?A.Surface roughness B.Surface texture C.Lay D.Waviness

Ans: D

17.Which one of the following groups of properties enables the manufacture of chain hooks from wrought iron?A.Ductillity, malleability and hardness B.Hardness, toughness and ductilityC.Malleability, ductility and toughness D.Hardness, toughness and brittleness Ans: C

18.You have to file an aluminum block to a smooth finish, which one of the following cut of file is most suitable?A.Double cut B.Curved cut C.Rasp cut D.Single cut Ans: A

19.Which one of the following is an artificial abrasive?A.Emery B.diamond C.Corundum D.Silicon carbide

Ans: D

20.The grain size of a grinding wheel is indicated by numbers, which range of grain size referred to as 'Very Fine'?A.10 – 24 B.30 – 60 C.80 – 180 D.220 – 600 Ans: D

21.A high carbon steel has to be forged, which colour indicate the most suitable forging temperature?A.Yellow red B.Dark cherry red C.white D.Light yellow

Ans: A

22.The lead screw pitch of a milling machine is 5mm and the dividing head ratio is 40 : 1 the lead of the milling machine is?A.0.125 mm B.5 mm C.8 mm D.200 mm Ans: D

23.The axis of the plate cam blank and the end mill spindle should always remain?A.Inclined to each other B.Parallel to each otherC.Opposite to each other D.Vertical and inclined

Ans: B

24.Which milling machine is particularly adopted for milling internal or external profiles?A.Pantograph milling machine B.Universal milling machineC.Planetary milling machine D.Tracer controlled milling machine

Ans: D

25.A 42 teeth involute helical gear with a helix angle of 45 deg is to be cut on a milling machine?A.12 to 13 B.35 to 54 C.135 to rake D.17 to 20 Ans: B

26.CNC machine are not manually operated. They are controlled by means of?A.A programme B.An operating C.A cam D.A plug board system

Ans: A

27.Counter boring is done for?A.Deburring hole ends B.Enlarging holes to accurate sizeC.Finishing cored holes D.Accommodating socket head screws Ans: D

28.A point to point control system is suitable only for one of the following applications?A.Milling profile B.Turning C.Drilling D.Grinding

Ans: C

29.A steel workpiece of height tensile strength is to be machined with a HSS milling cutter, which one of the following rake angles is best suited for the cutter?A.8" B.12" C.20" D.28" Ans: A

30.By using quick return mechanism in shaping machine the cutting stroke moves slow and return stroke fast. what is the ratio between cutting stroke and return stroke?A.2:3 B.3:2 C.5:3 D.3:5 Ans: B

31.What will be the result if the clearance angle in drill is increased?A.Poor wedging action B.Weak cutting edgeC.Rough hole surface D.Increased point angle Ans: B

32.An irregularly shaped workpiece is turned on a lathe. which one of the following work holding accessories is used?A.Three jaw chuck B.Two jaw chuck C.Driving plate D.Face plate

Ans: D

33.Solid H.S.S. cutters and carbide inserted tooth cutters are commonly used for milling, the permissible cutting speed of an inserted tooth cutter in relation to that of a HSS cutter is?A.Twice as much B.Five to ten times greater C.smaller D.Same

Ans: A

34.It is required to machine a single start worm of 2 module (m) and 60 mm pitch diameter, the speed ration is 40:1, to what length should the worm be cut?A.21 mm B.14.6 mm C.29.3 mm D.33.3 mm

Ans: C

35.The pattern on the work surface caused by the movement of the cutting tool is called?A.Waviness B.Roughness C.Surface texture D.Lay

Ans: C

36.A product is said to have the quality when?A.Its shape and dimensions are within the limits B.It appears to be very goodC.It is fit for use D.The choice of material is right

Ans: C

37.Which taper is used on spindle nose of the lathe head stock?A.Jerno taper B.Brown and sharp taper C.Pin taper D.Morse taper

Ans: D

38.Why do you hold a workpiece lengthwise while machining in a planning machine?A.It is easier to load workpiece lengthwise B.The idle time will be minimisedC.The surface quality will be improved D.The tool life will be increased Ans: C

39.A hole whose lower deviation is zero is called basic hole, which one of the following letters indicates basic hole?A. E B. F C. G D. H Ans: D

40.Rough and finish boring operations are carried out to machine a hole in a milling machine, for rough boring select?A.High spindle speed and coarse feed B.slow spindle speed and coarse feedC.slow spindle speed and fine feed D.High spindle speed and fine feed

Ans: B41.While machining cast iron coolant should be?A.Dry air B.Kerosence C.Machine oil D.soft water

Ans: A

42.The tool post of a planning machine is mounted on?A.Apron B.Cross rail C.Clapper box D.Saddle

Ans: C

43.The tensile strength of a metal is its ability to resist fracture when subjected to tensile loads, the tensile strength of metals are expressed in?A.N/mm sq. B.Kg/mm sq. C.N. Metre D.Kg. Metre Ans: B

44.Which one of the characteristics of a milling cutter is most suitable for climb milling?A.Left hand cutting B.Teeth material is carbideC.Larger clearance and rake angle D.The teeth are straight to the axis of the cutter

Ans:C

45.A gear wheel has 36 teeth and 3 mm module, its pitch diameter is?A.12 mm B.75 mm C.80 mm D.108 mm

Ans: D

46.Which one of the following thread forms is provided in the threaded parts where the pressure acts on one flank of the threads during transmission?A.V thread B.Square thread C.Knuckle thread D.Buttress thread

Ans: D

47.Which one of the bushes used in a drill jig and permits cutting tools of different diameters?A.Press fit bushes B.Removable bushes(slip) C.Fixed removable bushes

D.Liner bushes Ans: B

48.Which one of the following equipments is used in the shop floor for the checking of the form that is being turned?A.Template B.Snap gauge C.Dial test indicator and slip gauges D.Tool room microscopeAns: B

49.While grinding and lapping cemented carbide tipped tool with diamond wheels a good flow of coolant should be directed to cover the grinding zone, the coolant suitable is?A.Soluable oil B.Mineral oil C.Sulphurised oil D.Mixture of paraffin and water

Ans: A

50.Which one of the following operations can be done on slotting machine?A.External keyway on long shaft B.Internal groovesC.Woodruff keyway on a shaft D.Keyway for feather keys

Ans: C

51.A screw thread is designated as 1" B.S.P. thread, in 1 inch B.S.P. thread what 1" indicates?A.Major diameter of thread B.Minor diameter of threadC.Pitch diameter of thread D.Hole diameter of pipe

Ans: D

52.What will be the result if the clearance angle in drill is increased?A.Poor wedging action B.Weak cutting edge C.Rough hole surface D.Increased point angle Ans: B

53.The temperature to which a work piece is heated depends on the material and the type of forging process, the temperature range for forging low carbon steel is?A.700 - 800 deg Celsius B.650 - 920 deg CelsiusA.800 - 1300 deg Celsius A.450 - 700 deg Celsius

Ans: C

54.It is commonly observed that the face of a grinding wheel becomes shiny and smooth or glazed after some use due to one of the reasons stated below?A.Grade of wheel is too hard B.Abrasive of the wheel not suitable for the purposeC.Grain size is too coarse D.Structure of the wheel is too open

Ans: A

55.A traveling steady is fixed on the saddle of a Lathe. What is the function of this steady rest?A.To prevent bending of long shafts due to cutting forces B.To avoid load on the lathe centres while turning longC.To reduce the load on the cutting tool while turning D.To enables to turn at higher cutting speeds than recommendedAns: A

56.Zero setting of the two point bore dial gauge before the measurement is necessary to?A.Account for the errors in the gauge B.Facilitate comparisonC.Setup initial pressure in the gauge D.Eliminate inaccuracy of the measurement

Ans: D

57.Indexing head mechanism works with?A.Rock and gear B.Worm and worm gear C.Two helical gear D.Two bevel gear

Ans: B

58.Which gear arrangement used to change the circular motion of horizontal to vertical without change in speed ratio?A.Two spur gear B.Two helical gear C.Two bevel gear D.Worm and worm gear

Ans: C

59.What is a built up edge is respect of a turning tool?A.Job material embedded on tool edge B.A carbide tip soldered on a tool shankC.A method of reconditioning worn out cutting tool edge D.A tool cutting edge with a crater on it

Ans:C

60.Slip gauges are used as standards for precision length measurements, the slip gauges are available in four grades as per BIS standard, which one of the following grades is meant only for reference?A. 0 grade B. 1 grade C. 00 grade D. 11 grade Ans: C

61.How do you recognize a drill for soft metal?

A.By the large helix angle B.By the small helix angleC.By the chisel edge angle D.By the point angle which is 90 deg

Ans: A

62.Dressing and turning of a grinding wheel are?A.Exactly the same operation B.Done with the same equipmentC.Done only for coarse grinding wheels D.Only for form grinding

Ans: B

63.The web of twist drill, due to repeated grinding causes resistance to feeding while drilling a 12 mm diameter hole, the above effect is reduced by providing?A.Negative rake of web B.Thinning of web C.Less feeding force D.More feeding force Ans: C

64.It is required to finish grind a dia 50mm hardened steel shaft on a cylindrical grinding machine, if the recommended surface speed of the work is 33 metres/minute, the rpm of the work is?A. 190 B. 150 C. 210 D. 250 Ans: C

65.A 1.5mm displacement of tool point in boring operation will result in a change in the diameter equal to?A.0.75 mm B.1.5 mm C.3 mm D.6 mm Ans: C

66.The position of gear cutter on the arbor for rack milling is?A.Nearer to the column B.Nearer to the arbor support C.At the middle D.At any point on the arbor Ans: B

67.Various alloying elements are added to produce different alloy steels, which one of the following combination of alloying elements is using for HSS?A.Chromium, nickel and molybdenum B.Nickel, molybdenum and siliconC.Chromium, vanadium and manganese D.Chromium, vanadium and tungsten

Ans: D

68.Which is the correct expression for the unit of feed rate in milling?A. m/min B. mm/rev C. mm/sec D. mm/min Ans: A

69.In a shaping machine with mechanical driven ram the ram speed is not uniform?A.At the beginning of the cutt9ing stroke B.In the middle of the cutting strokeC.At the end of the return stroke D.In the middle of the return stroke

Ans: D

70.Thread measurement with inserts fitted in the anvil and spindle of screw tread micrometer are selected on the basis of one the following elements of a thread being measured?A.Major diameter B.Minor diameter C.Effective diameter D.Pitch

Ans: A

1.Which file is used for filing rough edges of soft metal castings?A.Bastard file B.smooth file C.Second cut file D.Dead smooth file

Ans: A

2.Trepanning type cutters are used for making holes on sheets is?A.Large B.Small C.Medium D.All of above Ans: A

3.The operation performed for reducing the web thickness is called?A.Making a pilot B.Thinning the point C.Draw centre line D.None of above

Ans: B

4.Hacksaw blades is made by?A.Mild steel B.Cast iron C.High carbon D.Pig iron Ans: C

5.The taper shank drills are held on the machine means of?A.Drift B.vice C.Sleeves D.Chucks Ans: C

6.A sine bar is used for?A.Measuring the diameter of holes B.Checking the profile of a threadC.Levelling the job for drilling D.Finding the angle of a taper job

Ans: D

7.The slight convexity is given to the cutting edge to?A.Allow the lubricant to enter B.Cut curved surfaces

C.Prevent digging of the ends D.Cut sharp corners Ans: C

8.Which is used for dressing fine and delicate wheels?A.Star wheel B.Grinding wheel C.Spindle wheel D.None of these

Ans: A

9.The component of the surface texture upon which the roughness is superimposed?A.Waviness B.Primary texture C.Roughness D.Lay

Ans: A

10.A jig is a special device?A.Which holds, supports, locates and also guides the cutting tool B.Which locates the cutting toolC.Which holds the job D.Which guides the tool Ans: A

11.The portion of the shaft carried in the bearing is often referred to as?A.Journal B.Cage C.Thrust D.Race

Ans: D

12.The part of a vernier bevel protractor on which main scale divisions are marked is the?A.Adjustable blade B.Disc C.Dial D.Stock Ans: C

13.The thread angle of I.S.O. metric thread is?A.55 B.60 C.45 D.None of above

Ans: B

14.Which among the following is not a capability of reamers?A.Finishing any machined profiles B. Producing high quality surface finishC.Finishing small holes D.Accuracy to closer limits

Ans: B

15.As per BIS standard sheet strips are designated by?A.Thickness x ISST x width as per IS 1730 B.ISST x Thickness x width as per IS 1730C.ISST x width x Thickness as per IS 1730 D.width x ISST x Thickness as per IS 1730

Ans: C

16.Parallel blocks are used for?A.Setting workpieces horizontal B.Levelling machine toolsC.Marking parallel lines along an edge D.Cutting parallel keyways

Ans: C

17.Which among the following is not a characteristic of granite surface plates?A.Burrs are formed when scratched B.Rust proofC.Dense and stable material D.Retains high accuracy

Ans: A

18.The convexity of files helps?A.To file convex surfaces B.The file to become straight when pressure is appliedC.To file concave surfaces D.To prevent rounding of edges of work

Ans: B

19.Tab washers are used for?A.Locking the nuts B.Preventing vibration C.Self locking D.Fastening structural fabrication work Ans: A

20.The principle of working of a dial test indicator is?A.The linear motion is converted into a rotary motion using rack and pinions B.Magnification by electronic meansC.The linear motion is converted into a reciprocating motion, using slotted link D.Magnification of small variation using lensesAns: A

21.The equivalent of 1" in metric is?A.24.5 mm B.25.04 mm C.2.54 mm D.25.4 mm Ans: D

22.The feeler gauge is used for?A.Checking the accuracy of the hole locators. B.Checking surface roughnessC.Checking the gap between mating parts D.Checking the radius of workpieces

Ans: C

23.A drilling machine used by a carpenter for cabinet making is a?A.Breast drilling machine B.Sensitive drilling machineC.Ratchet drilling machine D.Radial drilling machine

Ans: A

24.Formation of a chip while cutting is based on the?A.Clearance and wedge angle of the tool B.Clearance angle of the toolC.Rake angle of the tool D.Clearance angle of the tool

Ans: C

A.The rake angle is less B.The clearance angle is moreC.The rake angle is more D.The clearance angle is less

Ans: D

26.The least count of a vernier metric micrometer is?A.0.0001 mm B.0.001 mm C.0.01 mm D.0.1 mm Ans: B

27.The wearing of machine parts is due to?A.Abrasion B.Impact C.Corrosion D.Erosion

Ans: D

28.One yard is equal to?A.36 inches B.42 inches A.12 inches A.6 inches Ans: A

29.The point angle for a standard drill is?A.108 deg B.135 deg C.60 deg D.118 deg

Ans: D

30.The suitable cutting fluid for drilling mild steel drilling machine is?A.Coolant oil B.Distilled water C.Neat oil D.Soluble oil

Ans: D

31.Curved cut file used for?A.Filing wood, rubber etc. B.Filing brass, aluminium, bronze etc.C.Filing tin, copper, lead etc. D.Removes hard materials faster

Ans: C

32.Which one is quick drying and sticks to surfaces well?A.Copper sulphate B.Prussian blue C.Whitewash D.Cellulose lacquer Ans: D

33.Which is used for location of divider points?A.Scriber B.Centre punch C.Prick punch 30 deg D.Caliper

Ans: C

34.One millimetre is equal to?A.0.0001 m B.0.001 m C.0.01 D.None of above

Ans: B

35.Which caliper is can be set quickly?A.Long point caliper B.Adjustable caliper C.Spring type caliper D.None of these

Ans: C

36.Drill chucks are fitted on the drilling machine by means of a?A.Pinion and key B.Drift C.Knurled ring D.Arbor

Ans: D

37.The morse taper provided on drill range between?A.MT0 to MT4 B.MT1 to MT5 C.MT0 to MT5 D.MT1 to MT4 Ans: C

38. A drift is used for?A.Removing the drill from the machine spindle B.Drawing a drill locationC.Removing a broken drill from the work D.Axing chuck on the machine spindle

Ans: A

39.The distance a drill advances into the work in one minute is?

A.RPM B.Cutting speed C.Feed D.None of aboveAns: C

40.The name of the standard taper provided on drills is?A.Cutting tool B.Shank C.Drift D.Morse taper

Ans: D

41.The cutting angle for chipping cast iron is?A.90 deg B.37.5 deg C.60 deg D.55 deg

Ans: C

42.Which one among the following is not depended upon for locating and holding?A.The number of components to be machine B.The material of the workpieceC.The size and shape of the component D.The nature of machining operations Ans: B43.The datum, from which the measurements of vernier height gauge are taken, is?A.The vernier slide B.The base C.Above the scriber point D.The beam

Ans: B

44.The length of a sine bar is the distance between?A.Outside to outside distance between rollers B.One end to another end of the sine barC.Centre to centre distance between rollers D.Diagonal cross length of the sine bar

Ans: C

45.The distance, which the cutting edge of a passes over the material in a minute which making, is known as?A.Cutting speed B.RPM C.Machine Speed D.Feed

Ans: A

46.A fixture is a production tool that?A.Locates and holds the component B.Locates the componentC.Holds the component D.Controls the cutting tool

Ans: C

47.In a plain bush bearing, to prevent the rotation of bush in the housing, it should be fitted by means of?A.Brazing B.Soldering C.Welding D.Key or screw Ans: D

48.The part of a vernier height gauge on which the main scale divisions are graduated is the?A.The vernier plate B.Base C.Beam D.Fine setting device Ans: C

49.The reamer teeth are unevenly spaced because?A.The help to cut metal gradually B.They are easy to manufactureC.They help to remove the reamer easily D.They can reduce chattering

Ans: A

50.The size of the angle plates is stated by?A.Length x width B.Weight C.Length D.Size number

Ans: A

51.The dial test indicator shows the measurement as?A.The direct reading of the dimension B.The magnified small variations in sizes through a pointerC.The actual size of the component D.The difference between the two steps of 5mm

Ans: B

52.The equivalent of 1 metre in the inch system is?A.37.39" B.0" C.39.37" D.36"

Ans: C

53.A set of number drill series consists of drills in the following ranges. Indicate the correct range?A.1 to 80 B.0 to 100 C.1 to 40 D.0 to 50 Ans: A

54.Which instrument is used for checking the parallelism of filed surfaces?A.Caliper B.Steel rule C.Try square D.None of above

Ans: C

55.The common sizes of an engineer's steel rule?A.6 inch B.24 inch C.12 inch D.All of above

Ans: D

56.The common pitches of hacksaw blade is?A.1.8 mm B.1.4 mm C.0.8 mm D.All of above Ans: D

57.The materials from which the marking table is made?A.Medium carbon B.Cast iron C.Mild steel D.None of above

Ans: B

58.The size of the dividers are specified by the?A.Distance between the pints when fully opened B.Total length of the legsC.Distance between the pivot and the point D.Length of legs without the points

Ans: C

59.When the taper shank of the drill is larger than the machine spindle, the device to hold the drill is?A.Chuck and key B.Drill drift C.Taper socket D. Drill sleeve

Ans: C

60.The clearance angle of a drill is between?A.12 deg to 20 deg B.3 deg to 5 deg C.15 deg to 20 deg D.8 deg to 12 deg

Ans: D

61.The least count of a vernier bevel protractor is?A.1 deg B.1 inch C.5' D.5 deg

Ans: C

62.Name of the chemical solution used for cleaning the parts of a micrometer after it is dismantled?A.Thinner B.Carbon tetrachloride C.Clean oil D.None of above

Ans: B63.The pattern on the work surface caused by the movement of the cutting tool is called?A.Roughness B.Surface texture C.Waviness D.Roughness spacing

Ans: B

64.A sine bar is made of?A.Nickel steel B.High carbon steel C.Stabilized chromium steel D.High speed steel Ans: C

65.The process of bevelling the end of the hole is called?A.Counterboring B.Spot facing C.Countersinking D.Reaming

Ans: C

66.The included angle of the groove of 'V' block is always?A.45 deg B.90 deg C.60 deg D.120 deg

Ans: D

67.Surface plates are made of?A.Alloy steels B.Fine grained cast iron C.High grade cast steel D.Wrought iron Ans: B

68.In the number drill series, the largest drill size is?A.8.59 mm B.5.791 mm C.5.80 mm D.102 mm Ans: B

69.The depth micrometer is used for the measurement of a wide range of sizes because?A.It has a very lengthy spindle B.It has adjustable stock for different size settingsC.It has a lengthy graduated sleeve D.It has a number of extension rods for the different range of sizesAns: D

70.The relief angle provided behind the cutting edge is called?A.Helix angle B.Poing angle C.Clearance angle D.Chisel edge angle

Ans: C