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McqMate
301. |
A rack is gear of |
A. | Infinite pitch |
B. | Infinite module |
C. | Infinite diameter |
D. | Infinite number of teeth |
E. | None of the above |
Answer» D. Infinite number of teeth |
302. |
A left hand tool on a lathe cuts most efficiently when |
A. | Automatic feed is connected |
B. | It travels from left to right |
C. | It is operated by compound slide |
D. | It travels from right to left |
E. | It travels across the bed |
Answer» B. It travels from left to right |
303. |
A Bick iron is made of |
A. | High speed steel |
C. | Tool steel and hardened |
D. | While cast iron |
E. | Parting off |
Answer» C. Tool steel and hardened |
304. |
Which of the following is a process of chipless machining? |
A. | Gear shaving |
B. | Honing |
C. | Broaching |
D. | Hobbing |
E. | Cold heading |
Answer» E. Cold heading |
305. |
Which one of the following methods can be used for turning external tapers only? |
A. | Form tool |
B. | Tail stock offset |
C. | Reamer |
D. | Compound rest |
E. | Taper attachment |
Answer» B. Tail stock offset |
306. |
Plain and butt welds may be used on materials upto approximately |
A. | 100 mm thick |
B. | 75 mm thick |
C. | 50 mm thick |
D. | 40 mm thick |
E. | 25 mm thick |
Answer» E. 25 mm thick |
307. |
Greater proportion of heat in a cutting operation is produced in the region of |
A. | tool-chip interface |
B. | shearing plane of chip |
C. | tool and work piece contact |
D. | None of the above |
E. | Parting off |
Answer» B. shearing plane of chip |
308. |
The function of a chip breaker in a cutting tool is |
A. | To provide smooth path for long chips |
B. | To get long curled chips |
C. | To break the chips into short segrments |
D. | To remove chips from bed |
E. | None of the above |
Answer» C. To break the chips into short segrments |
309. |
Continuous chips in ductile metals is promoted by |
A. | Small rake angle |
B. | Reduce the wall thickness and increase the diameter of tubes already made |
C. | Low cutting speed |
D. | Insufficient cooling |
E. | Rine feed |
Answer» E. Rine feed |
310. |
A stub tooth is one that is |
A. | Thicker in proportion to its length than involute tooth |
B. | Smaller in proportion to its length than the involute tooth |
C. | None of these |
D. | Vernier caliper |
E. | Same as involute tooth |
Answer» B. Smaller in proportion to its length than the involute tooth |
311. |
Gear tooth vernier is used to measure |
A. | Pitch line thickness of gear tooth |
B. | Addendum and dedendum |
C. | Gear tooth thickness |
D. | Module |
E. | Gear tooth profile |
Answer» A. Pitch line thickness of gear tooth |
312. |
The moisture content of wood used for patterns should be |
A. | More than 25% |
B. | Zero |
C. | More than 20% |
D. | Less than 15% |
E. | 1% |
Answer» D. Less than 15% |
313. |
The coefficient of friction between chip and tool is the variable. It can be reduced by |
A. | Reducing the width of tool |
B. | Reducing the depth of cut |
C. | Reducing the effective rake angle |
D. | None of these |
E. | None of the above |
Answer» C. Reducing the effective rake angle |
314. |
A collimated light beam is used for producing heat in |
A. | Percussion welding |
B. | TIG welding |
C. | Plasma welding |
D. | MIG welding |
E. | Laser welding |
Answer» E. Laser welding |
315. |
A time switch is |
A. | A switch which operates for a fixed time only |
B. | A switch which gets energised with time |
C. | A 24 hour timing device used to open and close electric circuits according to time of day on a continually repeating schedule |
D. | A switch with records timings of operation of a circuit |
E. | None of the above |
Answer» C. A 24 hour timing device used to open and close electric circuits according to time of day on a continually repeating schedule |
316. |
In instrumentation a correction is |
A. | Reading-error |
B. | Range of error-degree of correctness |
C. | The revision applied to the indicated value so that the final result obtained improves the worth of the result |
D. | Lowest value of input which does not indicate the result |
E. | An error |
Answer» C. The revision applied to the indicated value so that the final result obtained improves the worth of the result |
317. |
A 12 mm drilling machine means |
A. | It can drill holes in 12 mm thick plates |
B. | It can drill holes maximum 12 mm in diameter |
C. | It can be used for crilling holes having cross-sectional area of 12 sq mm |
D. | All of the above |
E. | None of the above |
Answer» B. It can drill holes maximum 12 mm in diameter |
318. |
A sprue is |
A. | A process of cleaning castings |
B. | A chemical added to molten materials to get sound castings |
C. | A tool used in mould repairing |
D. | A special type of non-ferrous core used in centrifugal castings only |
E. | A vertical passage through the cope and connecting the pouring basin to the runner or gate |
Answer» E. A vertical passage through the cope and connecting the pouring basin to the runner or gate |
319. |
Which one of the following methods is generally not used in welding of chromium molybdenum steels |
A. | 100 mm thick |
B. | Thermit |
C. | Submerged arc |
D. | Oxyacetylene |
E. | Resistance |
Answer» E. Resistance |
320. |
Which of the following is the most rapid quenching medium? |
A. | Solution of caustic soda |
B. | High flash point oil |
C. | Parting off |
D. | Air |
E. | Water |
Answer» A. Solution of caustic soda |
321. |
The length of hacksaw blades is |
A. | Parting off |
B. | 200 - 300 mm |
D. | 300 mm - 400 mm |
E. | 150 mm - 250 mm |
Answer» B. 200 - 300 mm |
322. |
In production work where several castings are required |
A. | Parting off |
B. | match plate patterns are used |
C. | split patterns are used |
D. | loose piece patterns are used |
E. | gated patterns are used |
Answer» E. gated patterns are used |
323. |
In following operations are to be performed on a job, which one would be performed first |
A. | Tapping |
B. | Sport facing |
C. | Boring |
D. | Drilling |
E. | Counter sinking |
Answer» D. Drilling |
324. |
Toole life cannot be defined as |
A. | number of minutes after which tool failed |
B. | machine time in minutes for which tool performed satisfactorily |
C. | average length of cut per cutting edge |
D. | None of the above |
E. | Parting off |
Answer» A. number of minutes after which tool failed |
325. |
Which of the following press is best suited for embossing? |
A. | Knuckle joint press |
B. | Toggle action press |
C. | Double action press |
D. | None of the above |
E. | Parting off |
Answer» A. Knuckle joint press |
326. |
Coarse feed, low rake angle, low cutting speed and insufficient cooling help produce |
A. | continuous chips with built up edges in ductile materials |
B. | discontinuous chips in brittle materials |
C. | discontinuous chips in ductile materials |
D. | continuous chips in ductile materials |
E. | Parting off |
Answer» A. continuous chips with built up edges in ductile materials |
327. |
The chisels used in sheet metal work have |
A. | Rounded cutting edge |
B. | Straight cutting edge |
C. | Any of (A) or (B) |
E. | Parting off |
Answer» A. Rounded cutting edge |
328. |
The processes used for the machining of sintered and tungsten carbide is |
A. | Grinding process |
B. | Electroforming process |
C. | Explosive forming process |
D. | Turning process |
E. | None of the above |
Answer» B. Electroforming process |
329. |
Nitrided steel is used for gears where |
A. | Variable load operation is desired |
B. | Low speed operation is desired |
C. | Varying stresses are expected on teeth |
D. | High hardness is desired on teeth |
E. | Variable speed operation is desired |
Answer» D. High hardness is desired on teeth |
330. |
Which one of the following cannot be used as a moulding material |
A. | Wood |
B. | Cement |
C. | Glass |
D. | Paper |
E. | Rubber |
Answer» C. Glass |
331. |
Severe quenching may lead to |
A. | superficial hardness |
B. | blow holes |
C. | formation of cracks |
D. | warping |
E. | Parting off |
Answer» C. formation of cracks |
332. |
Steel balls are required in large quantities. Which process would you select for the manufacture? |
A. | Cold heading |
B. | Turning on a Capstan of Turret lathe |
C. | Casting |
D. | Turning on a lathe |
E. | Turning on a automatic lathe |
Answer» A. Cold heading |
333. |
A half nut is |
A. | A double start nut for a quick shift |
B. | Mechanism that locks the lathe carriage to the lead screw for thread cutting |
C. | Nut with half the standard pitch |
D. | Damaged nut |
E. | Nut manufactured in parts |
Answer» B. Mechanism that locks the lathe carriage to the lead screw for thread cutting |
334. |
Out of the following materials which one will have lowest temperature of freezing? |
A. | Copper |
B. | Zinc |
C. | Gold |
D. | Lead |
E. | Tungsten |
Answer» D. Lead |
335. |
Trepanning tool is used on |
A. | Milling machine |
B. | Planers |
C. | Lathes |
D. | Power presses |
E. | Cold heading machine |
Answer» B. Planers |
336. |
A blunt tool is used in |
A. | knurling |
B. | piercing |
C. | Parting off |
D. | gear shaving |
E. | hot spinning. |
Answer» E. hot spinning. |
337. |
Suitable change wheels for cutting 17 T.P.I. on 4 T.P.I. lead screw lathe are |
A. | 10 to 65 |
B. | 15 to 85 |
C. | 20 to 85 |
D. | 30 to 105 |
E. | None of the above |
Answer» C. 20 to 85 |
338. |
For the measurement of velocity, the transduction method could be |
A. | Capacitive |
B. | Inductive |
C. | Magneto-electric |
D. | Photoelectric |
E. | Any of the above |
Answer» E. Any of the above |
339. |
Burnishing operation is done with the help of |
A. | Abrasives |
B. | Dielectrics |
C. | Balls |
D. | Lubricating oils |
E. | Any of the above |
Answer» C. Balls |
340. |
Which of the following process connot be carried out on lathe machine? |
A. | Notching |
B. | Riveting |
C. | Punching |
D. | Blanking |
E. | All of the above |
Answer» B. Riveting |
341. |
Which of the following operations is known as 'sweating' |
A. | Tinning the two surfaces to be joined, applying flux and heating |
B. | Heating two surfaces to be joined, to the high temperature in presence of flux |
C. | Heating two surfaces at low temperature |
D. | Joining of two surfaces without use of flux |
E. | None of the above |
Answer» A. Tinning the two surfaces to be joined, applying flux and heating |
342. |
The stake used for making conical shapes is known as |
A. | Parting off |
B. | Hatchet stake |
C. | Funnel stake |
E. | Moon stake |
Answer» C. Funnel stake |
343. |
A special form of piercing in which the entire contour is not cut, is known as |
A. | Lancing |
B. | Notching |
C. | Trimming |
D. | Slotting |
E. | None of the above |
Answer» A. Lancing |
344. |
Carbon tool steels generally loose their hardness above |
A. | 50?C |
B. | 200?C |
C. | 100?C |
D. | Parting off |
E. | 125?C |
Answer» B. 200?C |
345. |
Loading of grinding wheel occurs when |
A. | Parting off |
B. | part of grinding surface gives way |
C. | long cracks develop on grinding wheel from centre to outer diameter |
D. | abrasive grains become clogged with particles of metal being ground |
E. | follow cavities are formed on the surface of grinding wheel |
Answer» D. abrasive grains become clogged with particles of metal being ground |
346. |
Preferred numbers are the numbers in |
A. | arithmetic progression |
B. | Parting off |
C. | harmonic progression |
D. | Logarithmic progression |
E. | geometric progression |
Answer» E. geometric progression |
347. |
Surveying tapes are generally made of |
A. | Invar |
B. | Nichrome |
C. | Constantan |
D. | Nicheloy |
E. | Muntz metal |
Answer» A. Invar |
348. |
In gas welding, the welding rods of 30 mm diameter are available. What will be the maximum thickness of material that can be welded with this rod? |
A. | 3 mm |
B. | 25 mm |
C. | 12 mm |
D. | 6 mm |
E. | 30 mm |
Answer» A. 3 mm |
349. |
The temperature scanning system are used |
A. | Where temperature control at a point is important |
B. | Where temperature difference between two points is important |
C. | Where system is capable of working without temperature control |
D. | Where monitoring of a relatively large number of temperatures is needed |
E. | None of the above |
Answer» D. Where monitoring of a relatively large number of temperatures is needed |
350. |
A good cutting action is indicated by |
A. | High cutting ratio |
B. | Low cutting ratio |
C. | Low chip reduction coefficient |
D. | None of the above |
E. | Bakelite |
Answer» B. Low cutting ratio |
351. |
The facting sand used in foundry generally consists of |
A. | Alumina, clay and silica |
B. | Aluminium and silica |
C. | Silica and clay |
D. | Alumina and clay |
E. | Silica and binder |
Answer» C. Silica and clay |
352. |
A massometer is |
A. | An instrument for the measurement of mass |
B. | An instrument of measurement of specific gravity of flowing fluids |
C. | An instrument for the measurement of mass of fluid flowing through a pipes |
D. | An instrument used for measuring mass of free flowing solids through conveyor pipes |
E. | None of the above |
Answer» D. An instrument used for measuring mass of free flowing solids through conveyor pipes |
353. |
Carbon tool steel are broadly classified into two categories as |
A. | hard and soft |
B. | warping and non-warping |
C. | Parting off |
D. | water hardening and oil hardening |
E. | hard and brittle |
Answer» D. water hardening and oil hardening |
354. |
Green sand moulds are |
A. | Painted with green paint |
B. | Made out of green coloured sand |
C. | Green in colour |
D. | Made from damp moulding sand |
E. | Skin dried moulds |
Answer» C. Green in colour |
355. |
The fuel used in pit furnace is generally |
A. | Charcoal |
B. | Wood |
C. | Coke |
D. | Coal |
E. | Oil |
Answer» C. Coke |
356. |
A pair of tumbler gears is used in |
A. | Milling machine |
B. | Shaper |
C. | Capstan lathe |
D. | Grinding machines |
E. | Centre lathe |
Answer» E. Centre lathe |
357. |
Cast iron pipes are cast by |
A. | Investment casting process |
B. | Vacuum moulding process |
C. | Centrifugal casting process |
D. | Loam moulding process |
E. | Die casting process |
Answer» C. Centrifugal casting process |
358. |
Thermocouples are generally used for accurate temperature measurement upto |
A. | 1000?C |
B. | 200?C |
C. | 100?C |
D. | 1600?C |
E. | 500?C |
Answer» D. 1600?C |
359. |
Discontinuous chip in ductile material is produced because of |
A. | Insufficient cooling |
B. | Sharp cutting edge |
C. | Sintering |
D. | Low friction |
E. | Large rake angle |
Answer» A. Insufficient cooling |
360. |
In power presses bolster plate is used to |
A. | Parting off |
B. | mount the press tool |
C. | cut the edges |
D. | eject the pressed component |
E. | position the piece |
Answer» B. mount the press tool |
361. |
Draft allowance on castings is generally |
A. | 20 - 30 mm/M |
B. | 5 - 10 mm/M |
C. | 2 - 5 mm/M |
D. | 10 - 15 mm/M |
E. | 1 - 2 mm/M |
Answer» D. 10 - 15 mm/M |
362. |
Railway rails are generally made of |
A. | Mild steel |
B. | Alloys steel containing 0.8 to 0.9% carbon |
C. | High carbon steel |
D. | Medium carbon steel |
E. | Deam mild steel |
Answer» B. Alloys steel containing 0.8 to 0.9% carbon |
363. |
Sweep patterns are used for |
A. | Tiny objects |
B. | Objects of circular shapes |
C. | Elliptical objects |
D. | Rectangular objects |
E. | Irregularly shaped objects |
Answer» B. Objects of circular shapes |
364. |
The linear characteristics of valve is |
A. | In which the length of valve is more than 10 times the width |
B. | In which the longest parameter of valve is not less than 20 times the widest part of the valve |
C. | In which the valve steam operates linearly |
D. | One in which the flow is directly proportional to the valve lift |
E. | None of the above |
Answer» D. One in which the flow is directly proportional to the valve lift |
365. |
Which of the following is not true for diamond? |
A. | Parting off |
B. | If the hardest substance known |
C. | Expensive to be shaped |
D. | It is ductile |
E. | It is also used as a cutting tool |
Answer» D. It is ductile |
366. |
Which of the following material connot be forged? |
A. | Cast iron |
B. | Low carbon steel |
C. | Dead mild steel |
D. | Eutectoid steel |
E. | Carbon chrome steel |
Answer» A. Cast iron |
367. |
For cylindrical grinding the peripheral speed will be of the order of |
A. | 800 m/min |
B. | 180 m/min |
C. | 9000 m/min |
D. | 18000 m/min |
E. | 1800 m/min |
Answer» E. 1800 m/min |
368. |
Generally the pattern used in manufacturing cast iron pipes are |
A. | Solid pattern |
B. | Match-plate pattern |
C. | Split pattern |
D. | Sweep pattern |
E. | None of the above |
Answer» E. None of the above |
369. |
Which of the following non-traditional machining process will have inferior surface finish as compared to the remaining processes? |
A. | Electro discharge machining |
B. | Plasma arc machining |
C. | Electron beam machining |
D. | Chemical machining |
E. | Ultrasonic machining |
Answer» B. Plasma arc machining |
370. |
The type of bearing suitable for high temperature applications where lubrication is impossible and where corrosion or chermical action limits choice of material, would be |
A. | Carbon graphite bearing |
B. | Needle bearing |
C. | Aluminium bearing |
D. | Cast iron bearing |
E. | Jewel bearing |
Answer» A. Carbon graphite bearing |
371. |
The selection of non-traditional machining process for a particular application depends on |
A. | Physical parameters of the process |
B. | Shspes to be machined |
C. | Process capability |
D. | Economics |
E. | All of the above |
Answer» E. All of the above |
372. |
The cutting speed is usually low in case of |
A. | Soft material |
B. | Regular shaped materials |
C. | Castings |
D. | Stepped shafts |
E. | None of the above |
Answer» C. Castings |
373. |
Continuous chips may be formed while machining |
A. | Ductile material |
B. | Non-ferrous material |
C. | Hard material |
D. | Tough material |
E. | Brittle materials |
Answer» A. Ductile material |
374. |
Solder contains |
A. | Lead and tin |
B. | Lead and silver |
C. | Silver and nickel |
D. | Nickel and lead |
E. | Tin and silver |
Answer» A. Lead and tin |
375. |
A swab is |
A. | A tool used in foundry for moistening the sand |
B. | A pneumatic tools |
C. | A tool used in foundry for repairing the mould |
D. | A tool used in foundry for smoothening the mould |
E. | A tool used on shaper |
Answer» A. A tool used in foundry for moistening the sand |
376. |
Hardness tester used for determining the hardness of a core is bearly identical to which of the following? |
A. | Vickers hardness tester |
B. | Rockwell hardness tester |
C. | Brinell hardness tester |
D. | Shore's scleroscope |
E. | Parting off |
Answer» C. Brinell hardness tester |
377. |
In gang milling |
A. | Work is fed into the rotation of cutter |
B. | A cutter generates two or more plain surface simultaneously |
C. | Work moves in the opposite direction as the rotating of the cutter |
D. | Work moves in the same direction as the rotation of the cutter |
E. | More than one cutter is simultaneously used |
Answer» E. More than one cutter is simultaneously used |
378. |
A gagger is |
A. | A tool used in clearing material before welding |
B. | A, L shaped metal accessory used in floor moulds to support hanging bodies of sand in cope |
C. | A device for removing foreign particles from sand |
D. | A tool used in clearing welds |
E. | A tool used in foundry for cleaning of castings |
Answer» B. A, L shaped metal accessory used in floor moulds to support hanging bodies of sand in cope |
379. |
Which of the following is gear finishing process? |
A. | Gear lapping |
B. | Gear shaving |
C. | Gear grinding |
D. | All of the above |
E. | None of the above |
Answer» D. All of the above |
380. |
Abrasive GC indicates |
A. | White Al2O3 |
B. | Parting off |
C. | Al2O3 |
D. | Green grit SiC |
E. | SiC |
Answer» D. Green grit SiC |
381. |
The primary detector in a pressure gauge is usually |
A. | Bellows |
B. | Diaphragm |
C. | Spring |
D. | Bourdon tube |
E. | Coil spring |
Answer» D. Bourdon tube |
382. |
Which type of gears can be manufactured by extrusion process? |
A. | Spur gears |
B. | Bevel gears |
C. | Helical gears |
D. | Worm gears |
E. | Herringbone gears |
Answer» C. Helical gears |
383. |
Chip breaker is |
A. | an obstruction attached to face of the tool |
B. | a hammer used to break the chips |
C. | a coolant forced under pressure on the chip |
D. | None of the above |
E. | Parting off |
Answer» A. an obstruction attached to face of the tool |
384. |
Point angle of 135 to 150? is used on drills while drilling |
A. | hard steels |
B. | nickel alloys |
C. | thin sheet metals |
D. | Any of the above |
E. | Parting off |
Answer» D. Any of the above |
385. |
Back rake angle while turning brass is |
A. | 5? |
B. | 10? |
C. | Parting off |
D. | 22? |
E. | 0? |
Answer» E. 0? |
386. |
The cutting tool is |
A. | Goose neck tool |
B. | Parting tool |
C. | Threading tool |
D. | Boring tool |
E. | Drilling tool |
Answer» B. Parting tool |
387. |
The standard taper provided on the tapered shank of drills is known as |
A. | Chapman taper |
B. | Morse taper |
C. | Jarno taper |
D. | Taper No. 1 |
E. | None of the above |
Answer» B. Morse taper |
388. |
A gear has a pitch diameter of 5.732 inches and circular pitch |
A. | 5 |
B. | 9 |
C. | 7 |
D. | 3 |
E. | 1 |
Answer» A. 5 |
389. |
Which of the following material is difficult to be spot welded? |
A. | Cold rolled mild steel sheet |
B. | Hot rolled mild steel sheet |
C. | Stainless steel |
D. | Copper |
E. | None of the above |
Answer» D. Copper |
390. |
Hardness of diamond can be determined by |
A. | Brinell hardness tester |
B. | Rockwell hardness tester |
C. | Vickers hardness tester |
D. | None of the above |
E. | Parting off |
Answer» D. None of the above |
391. |
In case of turning or milling, the surface roughness is expected to be in the range |
A. | 20 to 50 |
B. | 5 to 15 |
C. | 50 to 100 |
D. | 100 to 250 |
E. | 250 to 500 |
Answer» D. 100 to 250 |
392. |
True centrifugal casting is used to |
A. | Get accurate castings |
B. | Get chilled castings |
C. | Get dynamically balanced castings |
D. | Get statistically balanced castings |
E. | Cast objects symmetrical about an axis |
Answer» E. Cast objects symmetrical about an axis |
393. |
While using high speed steel tools, the cutting speed will be highest for which of the following steel? |
A. | Alloy |
B. | Stainless steel |
C. | Parting off |
D. | Medium carbon steel |
E. | Mild steel |
Answer» E. Mild steel |
394. |
If a piece of steel is reheated to a temperature of 200?C to 250?C immediately after quenching, the process is known as |
A. | Hardening |
B. | Cyniding |
C. | Normalizing |
D. | Tempering |
E. | Annealing |
Answer» D. Tempering |
395. |
Spot facing is |
A. | Localised machining of a component |
B. | None of above |
C. | A spot prepared on shaper or milling machine |
D. | Machining of a spot to fit other parts |
E. | Mahining of spol on the surface of a part to furnish a flat bearing or the head of a holt or nut |
Answer» E. Mahining of spol on the surface of a part to furnish a flat bearing or the head of a holt or nut |
396. |
Hollow punches are used for making holes upto |
A. | 10 mm and above |
C. | Parting off |
D. | (5 - 8) mm |
E. | (6 - 9) mm |
Answer» A. 10 mm and above |
397. |
A plug gauge is used for measuring |
A. | Spherical holes |
B. | None of above |
C. | Screw threads |
D. | Cylindrical bores |
E. | Taper bores |
Answer» D. Cylindrical bores |
398. |
Angle plate is |
A. | Used for measurement of angles |
B. | Used for cutting angles on jobs on shaper |
C. | Used for holding angular jobs in milling machine. |
D. | Cast iron jig used to hold work in a vertical position of layout or machining |
E. | None of above |
Answer» A. Used for measurement of angles |
399. |
Ablation mechanism is used in which of the following machining process? |
A. | Water jet machining |
B. | Chemical machining |
C. | Laser beam machining |
D. | Ultrasonic machining |
E. | Electron beam machining |
Answer» B. Chemical machining |
400. |
A photo-electric device in which the resistance of the metal changes directly proportional to the ligh striking on it is known as |
A. | Photo-cell |
B. | Photo-emission |
C. | Photo-voltaic cell |
D. | Photo-conductive cell |
E. | None of the above |
Answer» D. Photo-conductive cell |
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