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McqMate
201. |
Feeler gauge is used for measuring clearance between two |
A. | round surfaces |
B. | spherical surfaces |
C. | Parting off |
D. | flat surfaces |
E. | tapering surfaces |
Answer» D. flat surfaces |
202. |
Preheating is usually done while welding |
A. | Cast iron |
B. | Aluminium |
C. | Thin sheets of mild steel |
D. | Thick sheets of mild steel |
E. | Copper |
Answer» A. Cast iron |
203. |
EN series is used to designate |
A. | aluminium alloys |
B. | steels |
C. | organic materials |
D. | Parting off |
E. | copper alloys |
Answer» B. steels |
204. |
Sweep patterns are used for |
A. | Circular shape objects |
B. | Rectangular objects |
C. | Any large size objects |
D. | Ellipucal objects |
E. | Tiny objects |
Answer» A. Circular shape objects |
205. |
Kuock out mechanism in press is used to |
A. | chamfer the edges |
B. | eject out the component |
C. | shift the position of work piece after one operation |
D. | None of the above |
E. | Parting off |
Answer» B. eject out the component |
206. |
While machining cast iron generally cutting fluid is not required because |
A. | Cast iron surface is generally rough |
B. | The cast iron jobs revolves at low speeds |
C. | Cast iron contains graphite which does not allow temperatures to rise |
D. | Cast iron contains carbon which cools the job |
E. | None of the above |
Answer» C. Cast iron contains graphite which does not allow temperatures to rise |
207. |
An idler pulley is used for |
A. | Changing the direction of rotation |
B. | Running during no load period |
C. | For stopping the motion frequently |
D. | For adjusting the belt tension |
E. | None of the above |
Answer» D. For adjusting the belt tension |
208. |
Trepanning operation is used for |
A. | Producing large holes |
B. | Under cutting |
C. | Cutting grooves |
D. | Finishing the ends of the job |
E. | Bevelling the edges |
Answer» A. Producing large holes |
209. |
The difference between a plate and sheet is |
A. | A plate is less than 5 mm in thickness |
B. | A sheet is more than 5 mm in thickness |
C. | A sheet is always more than 5 metres in length |
D. | Sheet and plate are same and thickness is immaterial |
E. | A sheet is always less than 5 mm thick and a plate more than 5 mm thick |
Answer» E. A sheet is always less than 5 mm thick and a plate more than 5 mm thick |
210. |
Arc blow is a welding defect which is encountered |
A. | In thermit welding |
B. | In MIG welding |
C. | In arc welding using a.c. current |
D. | In arc welding using d.c. current |
E. | In gas welding |
Answer» D. In arc welding using d.c. current |
211. |
At what rpm should a lathe be run to give a cutting speed of 25 m/min. When turning a rod of diameter 32 mm. |
A. | Parting off |
B. | 160 rpm |
C. | 100 rpm |
D. | 200 rpm |
E. | 250 rpm |
Answer» E. 250 rpm |
212. |
Mechanical seals are used |
A. | To prevent vibrations |
B. | To prevent leakage |
C. | To reduce friction |
D. | To balance the equipment |
E. | None of the above |
Answer» B. To prevent leakage |
213. |
The thickness of clearance can be checked by |
A. | Shap gauge |
B. | Ring gauge |
C. | Go and not go gauge |
D. | Feeler gauge |
E. | Any of the above |
Answer» D. Feeler gauge |
214. |
A process applying oxide coating on aluminium is known as |
A. | Anodizing |
B. | Oxidizing |
C. | Pickering |
D. | Galvanising |
E. | Blanking |
Answer» A. Anodizing |
215. |
The advantage of mercury switch is |
A. | No mechanical moving parts |
B. | No open contacts |
C. | Sealed from dirt and contamination |
D. | Maintanance free |
E. | All of the above |
Answer» E. All of the above |
216. |
The advantage of electronically operated automatic control system is |
A. | Can be located in hazardous locations |
B. | Needs no maintenance |
C. | Does not require skilled service personnel |
D. | No time lags, no transmission delays |
E. | Does not cost much |
Answer» D. No time lags, no transmission delays |
217. |
International Prototype Meter is made of |
A. | Copper |
B. | Mild steel |
C. | Cast iron |
D. | Copper-nickel alloy |
E. | Platinum-iridium alloy |
Answer» E. Platinum-iridium alloy |
218. |
Die sinking is |
A. | The process of hardening of dies by sinking in quenching oil |
B. | The local cooling of dies on the dia surface by pouring oil on the spot |
C. | The process of cutting die impression |
D. | The process of scrapping a die impression so that remaining metal may be retrieved for further use |
E. | None of the above |
Answer» C. The process of cutting die impression |
219. |
The mallets used in sheet metal shop are made from |
A. | Parting off |
C. | Cast iron |
D. | Wood, fiber |
E. | Mild steel |
Answer» D. Wood, fiber |
220. |
A circular mill is |
A. | A circle of 1 metre diameter |
B. | A milling operation done on lathe is known as circular mill |
C. | A milling machine used for cutting circular jobs by giving motion to the job during cutting |
D. | Area of a circle of 1 mile radius |
E. | Area of 0.001 inch diameter circle |
Answer» E. Area of 0.001 inch diameter circle |
221. |
The method of joining metals by means of cast iron alloy whose melting point is below 425?C is known as |
A. | Non-ferrous welding |
B. | Soldering |
C. | Brazing |
D. | Galvanising |
E. | Adhesive bonding |
Answer» B. Soldering |
222. |
The important factor to be considered while selecting a bearing is |
A. | Applied load |
B. | Operating speed range |
C. | Required bearing capacity |
D. | All of the above |
E. | None of the above |
Answer» D. All of the above |
223. |
The purpose of sometimes adding exothermic materials to sand is |
A. | To dry the mould |
B. | To produce directional solidification by the generation of heat |
C. | To produce chilled surfaces |
D. | To heat the core |
E. | To heat the sand |
Answer» B. To produce directional solidification by the generation of heat |
224. |
The backlash between gears is expressed in terms of |
A. | Difference between addendum and dedendum |
B. | The difference between PCD of two gears |
C. | The actual gear width on pitch circle minus the standard gear width for given number of teeth on gear |
D. | Clearance between faces of the mating gears |
E. | None of the above |
Answer» D. Clearance between faces of the mating gears |
225. |
In all the following case chips produced are in the form of fragments EXCEPT |
A. | Trepanning of steel |
B. | Facing of bronze |
C. | Shaping of cast iron |
D. | Milling of aluminium |
E. | Parting off |
Answer» A. Trepanning of steel |
226. |
While using HSS tools on a lathe, cutting speed will be maximum when machining |
A. | Mild steel |
B. | Cast iron |
C. | High carbon steel |
D. | High speed steel |
E. | Aluminium |
Answer» E. Aluminium |
227. |
Heating elements for domestic and industrial electrical applications are made of |
A. | Babbit metal |
B. | Invar |
C. | Delta metal |
D. | Duralumin |
E. | Nichrome |
Answer» E. Nichrome |
228. |
The process of joining two slip gauges is known as |
A. | Piercing |
B. | Wringing |
C. | Welding |
D. | Pressing |
E. | Soldering |
Answer» B. Wringing |
229. |
When 50 mm rod is turning at a spindle speed of 200 rpm the cutting speed would be |
A. | 15 - 20 m/min |
B. | 10 - 12 m/min |
C. | 12 - 15 m/min |
D. | 30-35 m/min |
E. | 20 - 28 m/min |
Answer» D. 30-35 m/min |
230. |
The commonly used material for thermocouples is |
A. | Chromel-copper |
B. | Chromel-alumel |
C. | Platinum-rhodium |
D. | Any of the above |
E. | None of the above |
Answer» D. Any of the above |
231. |
It is desired to remove large quantity of material from a job in shortest possible time, on a lathe using high speed steel cutter. Which of the following step will be helpful? |
A. | Reduce spindle speed and increase depth of cut |
B. | Increase spindle speed and take light cuts |
C. | Increase spindle speed and take light cuts |
D. | At the speed corresponding to cutting speed take roughing cuts of maximum possible depth |
E. | None of the above |
Answer» D. At the speed corresponding to cutting speed take roughing cuts of maximum possible depth |
232. |
Which surfaces are usually 'wrung' together? |
A. | Gears |
B. | Slip gauges |
C. | Threads |
D. | Drill shanks and collets |
E. | Bed guides for lathe |
Answer» B. Slip gauges |
233. |
Which of the following is often used as flux in brazing process? |
A. | Fevicol |
B. | Iron dust |
C. | Borax |
D. | Ammonia chloride |
E. | Turpentine |
Answer» C. Borax |
234. |
A crater is a pit formed on |
A. | flank of tool |
B. | face of tool |
C. | surface of work piece |
D. | None of the above |
E. | Parting off |
Answer» B. face of tool |
235. |
Green colour on a pattern indicates |
A. | Seats for loose core prints |
B. | Fillets |
C. | Surface to be machined |
D. | Core prints |
E. | Surface to be left unmachined |
Answer» A. Seats for loose core prints |
236. |
Shear angle varies with |
A. | Feed |
B. | Depth of cut |
C. | Material of tool |
D. | Work piece materials and tool geometry |
E. | Cutting speed |
Answer» D. Work piece materials and tool geometry |
237. |
Weld spatter is |
A. | A flux |
B. | A filler material used in gas welding |
C. | A welding defect |
D. | An electrode used in inert atmosphere |
E. | A filler material used in soldering |
Answer» C. A welding defect |
238. |
In centreless grinding, work piece is clamped in |
A. | Chuck |
B. | Bed |
C. | Vice |
D. | Not clamped |
E. | Collet |
Answer» D. Not clamped |
239. |
Straight fluted drills are used for |
A. | Amorphous materials |
B. | Ferrous materials |
C. | Brass and soft materials |
D. | Very hard materials |
E. | Brittle materials |
Answer» C. Brass and soft materials |
240. |
Carbondioxide is |
A. | Neutral gas |
B. | Combustible gas |
C. | Rare gas |
D. | Inactive gas |
E. | Ionic gas |
Answer» D. Inactive gas |
241. |
Necking is |
A. | Preparation of surface for brazing |
B. | Hole drilled for riveting |
C. | Drilling a hole in a plate |
D. | Machining a groove around cylindrical shaft |
E. | Initial spot welding to position jobs |
Answer» D. Machining a groove around cylindrical shaft |
242. |
The main advantage of investment casting is |
A. | It can be conveniently adopted for heavy castings |
B. | High degree of accuracy and surface finish |
C. | There is no sophisticated technology involved |
D. | No special tooling is required |
E. | Raw materials required are cheap |
Answer» B. High degree of accuracy and surface finish |
243. |
Cutting speeds for some materials are given as |
A. | 30 m/min |
B. | 20 m/min |
C. | 100 m/min |
D. | 40 m/min |
E. | 80 m/min |
Answer» D. 40 m/min |
244. |
Large size bolt heads are made by |
A. | Hammering |
B. | Roll forging |
C. | Upset-forging |
D. | Swaging |
E. | Casting |
Answer» C. Upset-forging |
245. |
Cyaniding |
A. | A process of annealing a ferrous alloy |
B. | A process of case hardening |
C. | A process of removing carbon from metals |
D. | A process of hardening and tempering |
E. | A process used on non-ferrous materials for improving surface quantities |
Answer» B. A process of case hardening |
246. |
In climb milling |
A. | Work moves in same direction as rotation of the cutter |
B. | Tool climbs on the work piece for cutting operation |
C. | Cutting takes place in two planes simultaneoudly |
D. | Work is fed to cutter in lateral direction |
E. | Work moves in opposite direction as rotation of the cutter |
Answer» A. Work moves in same direction as rotation of the cutter |
247. |
Which of the following is basically a polishing operation? |
A. | Lapping |
B. | Soft grinding |
C. | Honing |
D. | Parting off |
E. | Buffing |
Answer» E. Buffing |
248. |
When a thin job is to be machined on a shaper, in order to prevent warping, which one of the following steps should be taken first? |
A. | Light cut |
B. | Heavy cut |
C. | Single heavy cut |
D. | Any of the above |
E. | Vernier caliper |
Answer» A. Light cut |
249. |
Which of the following metal is best suited for electro forming? |
A. | Lead |
B. | Silver |
C. | Mild steel |
D. | Aluminium |
E. | Zinc |
Answer» B. Silver |
250. |
Discontinuous chips in brittle materials are promoted by |
A. | low cutting speed and insufficient rake angle |
B. | coarse feed and low cutting speed |
C. | low cutting speed and insufficient coolant |
D. | None of the above |
E. | Parting off |
Answer» A. low cutting speed and insufficient rake angle |
251. |
Which turning aluminium the side rake angle is nearly |
A. | Parting off |
B. | 5? |
C. | 15? |
D. | 10? |
E. | 0? |
Answer» C. 15? |
252. |
The moisture content of moulding sand generally varies from |
A. | 40-50 percent |
B. | 2-8 percent |
C. | 10-25 percent |
D. | 50-65 percent |
E. | 25-40 percent |
Answer» B. 2-8 percent |
253. |
LASER is |
A. | an electromagnetic radiation |
B. | a magnetic radiation |
C. | a light radiation |
D. | Parting off |
E. | an atomic radiation |
Answer» A. an electromagnetic radiation |
254. |
Which of the following does not represent the number of slip gauges in a metric set? |
A. | 110 |
B. | 45 |
C. | 88 |
D. | 65 |
E. | 103 |
Answer» D. 65 |
255. |
In lost wax casting for non-ferrous materials, the material of the mould is |
A. | Sodium silicate |
B. | Silica |
C. | Plaster of Paris |
D. | Ethyl silicate |
E. | Parting off |
Answer» C. Plaster of Paris |
256. |
Oxygen cylinders are |
A. | Cast iron cylinders |
B. | Seamless steel cylinders |
C. | Die cast |
D. | Steel cylinders, welded structure |
E. | Alloy steel cylinders, thermit welded |
Answer» B. Seamless steel cylinders |
257. |
A work piece of 100 mm diameter is to be machined at a cutting speed of 100 metres per minute. The rpm of the work piece should be |
A. | 636 |
B. | 318 |
C. | 100 |
D. | 200 |
E. | 159 |
Answer» B. 318 |
258. |
Point angle of drill is usually more while drilling |
A. | Slate |
B. | Marble |
C. | Hard alloys |
D. | Soft cast iron |
E. | Mild steel |
Answer» C. Hard alloys |
259. |
In drilling operation if the drill point is outside the drill axis, the effect on the drilled hole will be |
A. | The hole will be rough |
B. | The hole will be smooth |
C. | The hole will become too large |
D. | The hole will become elliptical |
E. | The drilled hole will be normal |
Answer» C. The hole will become too large |
260. |
Black broken lines on a pattern indicates |
A. | Surface to be left unmachined |
B. | Surfaces to be machined |
C. | Seats for loose core prints |
D. | Core prints |
E. | Fillets |
Answer» E. Fillets |
261. |
Spherodising is a |
A. | annealing process |
B. | surface treatment process |
C. | Parting off |
D. | age-hardening process |
E. | hardening process |
Answer» A. annealing process |
262. |
A tool is said to have worn if |
A. | it produces discontinuous chips |
B. | its cutting angles have changed |
C. | heat produced in cutting is large |
D. | None of the above |
E. | Parting off |
Answer» B. its cutting angles have changed |
263. |
Which of the following is not a 'drawing' process? |
A. | Spinning |
B. | Bulging |
C. | Embossing |
D. | Tube drawing |
E. | Lancing |
Answer» E. Lancing |
264. |
To break the continuous chips |
A. | Use a chip breaker in the tool |
B. | Cut the metal intermittently |
C. | Use high cutting speed and low feed |
D. | None of the above |
E. | Small fragments |
Answer» A. Use a chip breaker in the tool |
265. |
Hard, tough, fragile and heat sensitive metals can be processed by |
A. | Explosive forming |
B. | Intraform machining |
C. | Electrical discharge machining |
D. | Cold heading |
E. | High energy rate forming |
Answer» C. Electrical discharge machining |
266. |
In which grinding operation the peripheral speed of the grinding wheel will be highest? |
A. | Circular grinding |
B. | Face grinding |
C. | Internal grinding |
D. | Surface grinding |
E. | Part off grinding |
Answer» E. Part off grinding |
267. |
Which of the following pattern can be used for symmetrical objects only? |
A. | Gated pattern |
B. | Split pattern |
C. | Sweep pattern |
D. | All of the above |
E. | Parting off |
Answer» C. Sweep pattern |
268. |
When the capacity of a power press is expressed in 100 tonnes, it implies that |
A. | Dead weight of the press is 100 tonnes |
B. | Total production of material will be 100 tonnes in a day |
C. | The maximum load that the press can apply is 50 tonnes |
D. | All of the above |
E. | None of the above |
Answer» C. The maximum load that the press can apply is 50 tonnes |
269. |
Which of the following welding process is preferred for wrought iron? |
A. | Spot welding |
B. | Mig welding |
C. | Forge welding |
D. | Lesser welding |
E. | Thermit welding |
Answer» C. Forge welding |
270. |
The operation of cutting holes in sheet by a press is known as |
A. | Punching |
B. | Shearing |
C. | Slitting |
D. | Drilling |
E. | Trimming |
Answer» A. Punching |
271. |
The sheet metals which can be cut by a hand shear have a thickness |
A. | Any value of s.w.g. |
B. | Upto 5 s.w.g. |
D. | Parting off |
E. | Upto 165 s.w.g. |
Answer» E. Upto 165 s.w.g. |
272. |
Chip breakers are used while machining |
A. | ductile materials |
B. | brittle materials |
C. | Both (A) and (B) |
D. | None of the above |
E. | Parting off |
Answer» A. ductile materials |
273. |
Usually the range of an instrument is selected such that |
A. | Minimum reading coincides with average value of working parameter |
B. | Minimum reading coincides with minimum value of the working parameter |
C. | For the working parameter the pointer direction is vertical |
D. | For the working parameter the pointer deflection is about ? of the full scale |
E. | None of the above |
Answer» D. For the working parameter the pointer deflection is about ? of the full scale |
274. |
The weight of hammers used in a fitting ship is |
B. | 0.25 kg - 0.50 kg |
C. | Parting off |
D. | 0.45 kg - 0.70 kg |
E. | 0.75 kg - 1 kg |
Answer» D. 0.45 kg - 0.70 kg |
275. |
Core prints are provided to |
A. | Form seat to support and hold the core |
B. | Direct the flow of molten material during pouring |
C. | Form trade mark of company on castings |
D. | Reinforce the core to withstand the force of buoyancy of molten metal |
E. | Produce castings with specific surface design |
Answer» A. Form seat to support and hold the core |
276. |
For the measurement of viscosity the transduction method could be |
A. | Electron tube |
B. | Magneto-electric |
C. | Photoelectric |
D. | Radioactive |
E. | Capacitive |
Answer» E. Capacitive |
277. |
A rammer is |
A. | A measuring tool |
B. | A tool used in powder metallurgy for shaping the mixture |
C. | A tool used in foundry to pack the sand in mould |
D. | A tool used in press work to lift the pressed components |
E. | A tool used n welding for cleaning purpose |
Answer» C. A tool used in foundry to pack the sand in mould |
278. |
Device used in the fitting shop used for holding round bars during marking/centre drilling thin faces is known as |
B. | Parting off |
C. | Bench vice |
D. | Surface plate |
E. | V-block |
Answer» E. V-block |
279. |
Filler metal is essentially used in which of the following welding process? |
A. | Spot welding |
B. | Seam welding |
C. | Projection welding |
D. | Gas welding |
E. | All of the above |
Answer» D. Gas welding |
280. |
Which of the following is not a part of gating system? |
A. | Vents |
B. | Pouring basin |
C. | Sprue |
D. | Gates and riser |
E. | Parting off |
Answer» A. Vents |
281. |
When small castings are to be produced in large numbers, the type of pattern generally used is |
A. | Split pattern |
B. | Loose piece pattern |
C. | Sweep pattern |
D. | Match-plate pattern |
E. | Solid pattern |
Answer» D. Match-plate pattern |
282. |
Hardness of work surface affects honing by |
A. | varying the rate of stock removal |
B. | poor surface finish |
C. | coolant consumption |
D. | All of the above |
E. | Parting off |
Answer» A. varying the rate of stock removal |
283. |
The tool used for marking the location of bend line on thick metal/marking centres of holes is termed as |
A. | Hollow punch |
B. | Centre punch |
D. | Prick punch |
E. | Parting off |
Answer» B. Centre punch |
284. |
Warping may be avoided when quenching a long slender piece of work by |
A. | Holding the piece between clamps |
B. | Holding the piece vertically over the quenching both and plunging it straight down |
C. | Holding the piece on horizontally adequate supports |
D. | Pulling the piece from both ends |
E. | None of the above |
Answer» B. Holding the piece vertically over the quenching both and plunging it straight down |
285. |
What multiple of basic unit is 'atto'? |
A. | 10--18 |
B. | 10--15 |
C. | 10--12 |
D. | 10--20 |
E. | 10--9 |
Answer» A. 10--18 |
286. |
A vent wire is |
A. | is used in cold heading |
B. | A kind of wire used in hot forging |
C. | A sharp pointed wire used in foundry for punching holes through the rammed sand |
D. | A wire for providing airflow |
E. | None of the above |
Answer» C. A sharp pointed wire used in foundry for punching holes through the rammed sand |
287. |
Which one of the following is not a vector quantity? |
A. | Acceleration |
B. | Impulse |
C. | Time |
D. | Force |
E. | Momentum |
Answer» C. Time |
288. |
In which of the following welding process, flux is used in the form of granules? |
A. | Submerged arc welding |
B. | Gas arc welding |
C. | DC arc welding |
D. | Argon arc welding |
E. | All of the above |
Answer» A. Submerged arc welding |
289. |
A set hammer is made of |
A. | Mild steel |
B. | Parting off |
D. | High carbon steel |
E. | Tool steel and hardened |
Answer» E. Tool steel and hardened |
290. |
Material used for resistances is generally |
A. | Nichrome |
B. | Duralumin |
C. | Constantan |
D. | Monel metal |
E. | Elinvar |
Answer» C. Constantan |
291. |
A kentometer is |
A. | A manometric device used for measurement of vacumms |
B. | A simple device used for measurements of kinetic energy |
C. | A device used for measurement of kinetic energy |
D. | A device used for the measurement of temperature |
E. | A device used for the measurement of mass |
Answer» A. A manometric device used for measurement of vacumms |
292. |
Ezy out is |
A. | A tool for making round objects |
B. | A taper reamer |
C. | An instrument for measurement of out of roundness of objects |
D. | A tool for removing broken bolts and studs from a hole |
E. | A drill having two diameters |
Answer» D. A tool for removing broken bolts and studs from a hole |
293. |
Swab is |
A. | A welding defect |
B. | A forging die |
C. | A rocess of manufacturing grinding wheels |
D. | A tool used in foundry |
E. | A gear cutter |
Answer» D. A tool used in foundry |
294. |
The function of a coolant in a metal cutting operation is |
A. | To cool the job |
B. | To cool the tool |
C. | To reduce the friction at cutting point |
D. | To obtain bright shining surface on the job |
E. | None of the above |
Answer» C. To reduce the friction at cutting point |
295. |
In deriving relationship between thickness ratio, angle of shear plane and tool rake angle, which assumption is not required in orthogonal cutting |
A. | tool cuts at constant speed |
B. | the edge of the cutting tool is larger than width of the chip |
C. | the width of chip is larger than its thickness |
D. | None of the above |
E. | Parting off |
Answer» A. tool cuts at constant speed |
296. |
The impedance of piezo-electric crystals is |
A. | High |
B. | Negligible |
C. | Low |
D. | Very low |
E. | Average |
Answer» A. High |
297. |
Machining allowance in case of die casting is |
A. | Same as in other methods of casting |
B. | Generally not provided |
C. | Small |
D. | Very small |
E. | Large |
Answer» B. Generally not provided |
298. |
Which of the following process has least power consumption in kW/cm2/min? |
A. | Electro discharge machining |
B. | Laser beam machining |
C. | Plasma arc machining |
D. | Ultrasonic machining |
E. | Abrasive jet machine |
Answer» C. Plasma arc machining |
299. |
Extrusion is the process of |
A. | Metal shaping on presses |
B. | Pushing the heated billet of metal through the orifice |
C. | Producing holes by arc |
D. | Welding two dissimilar metals |
E. | Marking cup shaped articles using the force of explosion |
Answer» B. Pushing the heated billet of metal through the orifice |
300. |
In electrical resistance welding cleaning of metals to be welded |
A. | Is immaterial |
B. | Is important |
C. | Can be neglected |
D. | Does not have any effect on the welding |
E. | None of the above |
Answer» B. Is important |
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