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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 19301. |
In extrusion process, extra shearing occurs in which part of the system?(a) Feed section(b) Pumping section(c) Collapse section(d) Transition section |
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Answer» Right answer is (b) Pumping section Explanation: The section where an additional amount of melting and shearing occurs is called a pumping section. |
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| 19302. |
Which of the following method is used for making wheel discs?(a) Drop forging(b) Press forging(c) Open die forging(d) Closed die forging |
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Answer» Right choice is (b) Press forging The explanation is: Among the following methods, press forging is one method that is the most widely and commonly used method for the manufacture of hollow bodies, wheel discs and panels. |
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| 19303. |
Which of the following is a light metal?(a) Copper base(b) Lead base(c) Nickel base(d) Magnesium base |
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Answer» Correct choice is (d) Magnesium base Explanation: Magnesium base is a light metal. |
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| 19304. |
The following figure represents which rivet head?(a) Conical head(b) Snap head(c) Countersunk head(d) Pan head |
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Answer» The correct choice is (c) Countersunk head The explanation: None. |
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| 19305. |
The following figure represents which rivet head?(a) Pan head(b) Conical head(c) Countersunk head(d) Cup head |
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Answer» The correct choice is (d) Cup head To explain I would say: Riveting is a process that is used for fastening a particular joint permanently. The following figure is that of a Cup head riveting or snap head riveting is the most commonly used method of riveting. |
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| 19306. |
Melting section is another name for which section?(a) Feed section(b) Transition section(c) Pumping section(d) Collapse section |
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Answer» The correct option is (b) Transition section The explanation is: Melting section is one of the types of extrusion in polymers. Extrusion is a process of forcing plastic which is at a very high temperature, through the dies, and gets opened at a required shape. Melting section is another name for transition section. |
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| 19307. |
Which of the following is not an important factor of cooling in extrusion?(a) Reduction in shrinkage(b) Reduction in distortion(c) Ease of adding colours(d) Rate of cooling |
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Answer» The correct option is (c) Ease of adding colours To elaborate: There are various factors of cooling, a few of them are, reduction in shrinkage, reduction in distortion and the rate of cooling too has to be considered. |
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| 19308. |
Which among the following is a heavy metal?(a) Titanium base(b) Aluminium base(c) Zinc base(d) Magnesium base |
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Answer» The correct answer is (c) Zinc base Best explanation: The given metal bases are all non-ferrous metal bases, which are classified under foundry metals and alloys. Among these, the only heavy metal is the zinc base, while all others are light metals. |
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| 19309. |
Which of the following methods cannot be used for welding carbon steel?(a) Arc welding(b) Gas welding(c) Ultrasonic welding(d) Forge welding |
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Answer» Right choice is (c) Ultrasonic welding Easy explanation: For the welding of carbon steel material, one may use the arc welding method. To gas weld carbon steel is also a feasible option and carbon steels can be treated using forge welding also, but it cannot be welded using ultrasonic welding. |
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| 19310. |
Which of the following components are manufactured by the sheet metal forming process?(a) Engine blocks(b) Connecting rods(c) Electric wires(d) Car bodies |
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Answer» Correct answer is (d) Car bodies The best explanation: Sheet metal forming is a process which uses ductile materials like aluminium or low carbon steel to form lightweight products with versatile features. Car bodies are mainly manufactured by sheet metal forming by performing operations like shearing, slitting, cutting, or sawing of thin metal plates. This method is also used for making parts like beverage cans, metal desks, appliances etc. |
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| 19311. |
How are extruded materials cooled?(a) Water(b) Contact with chilled surface(c) Air(d) Oil |
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Answer» Right answer is (d) Oil To explain I would say: On completion of extrusion, the material is very hot and has to be cooled down. There are various agents which are used cooling these materials down, such as, air or water or its direct contact with a very cold surface. |
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| 19312. |
The following figure represents which type of adhesive bonded joint?(a) Scarf better(b) Beveled lap excellent(c) Plain lap good(d) Butt unsatisfactory |
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Answer» Correct answer is (b) Beveled lap excellent The explanation: None. |
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| 19313. |
The following figure represents which rivet head?(a) Conical head by hammering(b) Snap head(c) Pan head(d) Conical head |
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Answer» The correct answer is (d) Conical head Easy explanation: Such an apparatus has a conical head and is produced by hammering. The following figure represents a conical head unlike snap head, pan head and conical head. |
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| 19314. |
Which of the following is not produced using impression die forging?(a) Levers(b) Handles(c) Gears(d) Turbine blades |
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Answer» Correct choice is (b) Handles To explain I would say: Impression die forging finds itself into variety of applications. They are used in making a few automobile parts also. Among the following, levers, gears and turbine blades can be produced using impression die forging, but not handles. |
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| 19315. |
What is the amount of carbon present in high carbon steel?(a) More than 0.5%(b) More than 0.7%(c) More than 0.4%(d) More than 0.2% |
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Answer» Right option is (a) More than 0.5% Best explanation: More than 0.5% amount of carbon present in high carbon steel. |
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| 19316. |
Which current is helpful in detecting surface breaking indication?(a) High frequency AC(b) Low frequency AC(c) Full wave DC(d) Half wave DC |
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Answer» The correct option is (d) Half wave DC Explanation: None. |
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| 19317. |
When an AC current is used for magnaflux test, what is its frequency?(a) 35 cycles/sec(b) 45 cycles/sec(c) 55 cycles/sec(d) 65 cycles/sec |
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Answer» The correct option is (c) 55 cycles/sec The best explanation: A magnaflux test is the one which is used for testing and detecting for any kind of thermal defect or any kind of quenching crack. For doing this, an alternating current can be used. The frequency of the alternating current is in the range of 50 to 60 cycles every second. |
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| 19318. |
Which of the following processes is mainly used for making the connecting rods?(a) Casting(b) Deep drawing(c) Rolling(d) Forging |
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Answer» Correct option is (d) Forging Explanation: Connecting rods are generally manufactured by the forging operation. In forging, a hammer is used which strikes on the heated metallic part to get into the desired shape. The properties like strength, toughness, etc are greatly enhanced by performing the forging operation. Forging can be open die forging or closed die forging. |
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| 19319. |
Which of the following cannot be counted among the advantages of a crucible?(a) Uniform heating(b) Low flexibility(c) Low installation cost(d) No contamination of charge |
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Answer» Right choice is (b) Low flexibility To elaborate: Melting various materials through crucibles is an old process. This process has the advantage of uniform heating and no contamination of charge by the product obtained from combustion. The operation is inexpensive, and the flexibility is high. |
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| 19320. |
What is the size range of dry particle powder?(a) 5 to 170 micrometers(b) 15 to 185 micrometers(c) 45 to 215 micrometers(d) 65 to 250 micrometers |
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Answer» Right option is (a) 5 to 170 micrometers The best I can explain: Dry particle powder is basically applied in the form of a spray or a cloud. This powder is designed to be seen in white light. The particle size of dry particle powder is 5 to 170 micrometers. |
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| 19321. |
What is the tensile strength of grade 220 iron?(a) 220 Dyne/mm^2(b) 220 N/m^2(c) 220 N/mm^2(d) 220 Dyne/cm^2 |
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Answer» The correct option is (c) 220 N/mm^2 Easiest explanation: According to the standards of UK, the castings are made in a specified grade of iron. Hence, iron having a grade of 220, is equivalent to iron having a tensile strength of 220 N/mm^2. |
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| 19322. |
In which of the following operations is a dummy block used?(a) Indirect extrusion(b) Direct extrusion(c) Impact extrusion(d) Hydrostatic extrusion |
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Answer» Correct option is (b) Direct extrusion For explanation: In direct extrusion or forward extrusion, a dummy block is used during the functioning of the extrusion process. |
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| 19323. |
On what voltage do the X-rays operate?(a) 350 kV(b) 375 kV(c) 400 kV(d) 475 kV |
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Answer» Correct option is (c) 400 kV The best explanation: The X-ray are waves are having very short wavelength. The object which has to be tested is exposed to the X-rays, for doing this, high voltage supply is required. The X-rays ideally operate on 400 kV. |
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| 19324. |
Eddy currents are not used for the measure of which of the following properties?(a) Electrical conductivity(b) Magnetic resistivity(c) Hardness(d) Grain size |
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Answer» Correct option is (b) Magnetic resistivity For explanation: The inspection of structures done by eddy current method is based on the principle of electromagnetic induction. This method of detecting defects can be used for knowing the measure of electrical conductivity, grain size, hardness and magnetic permeability. |
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| 19325. |
What is the minimum frequency accepted for the spark gap converter, used in current production of high frequency induction furnace?(a) 10,000 cycles/second(b) 15,000 cycles/second(c) 20,000 cycles/second(d) 25,000 cycles/second |
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Answer» Right answer is (c) 20,000 cycles/second To elaborate: Spark gap converters which are equipped for the production of high frequency current can have a minimum frequency of 20,000 cycles every second, in high frequency induction furnace. |
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| 19326. |
Penetrants of which colour are not used?(a) Red(b) Blue(c) Green(d) Yellow |
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Answer» The correct choice is (a) Red To elaborate: The application of penetrant is one of the steps of inspection of dye penetrant test. It is an important feature that one must take care of, that the penetrant used, must not be of red colour, as defects are identified using red colour. |
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| 19327. |
Which of the following is not an excess penetrant remover?(a) Solvent removable(b) Water washable(c) Lipophilic pre-emulsifiable(d) Lipophilic post-emulsifiable |
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Answer» The correct choice is (c) Lipophilic pre-emulsifiable The best explanation: A penetrant remover material highly depends on the type of material by which the penetrant is made. Among the following, a lipophilic pre-emulsifiable is not a type of excess penetrant remover. |
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| 19328. |
What is the heat generated in eddy current operations?(a) VI(b) VIR(c) I^2RT(d) I^2R |
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Answer» The correct choice is (d) I^2R The best I can explain: Eddy current method of inspection and heating techniques is used for metal heating. The heat generated by this method can be given by I^2R, I is current and R is the resistance. |
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| 19329. |
In which of the following process, does the die have a concave surface?(a) Fullering(b) Edging(c) Cogging(d) Cavitising |
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Answer» Right option is (b) Edging Explanation: Among the following processes, that are fullering, edging, cogging and cavitising, edging is a process in which, the die has a concave shape. |
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| 19330. |
Which of the following is also called as forward hot extrusion?(a) Direct extrusion(b) Indirect extrusion(c) Impact extrusion(d) Hydrostatic extrusion |
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Answer» The correct choice is (a) Direct extrusion To elaborate: Direct extrusion is also called as forward hot extrusion. This method is most widely used and maximum production is done by this method in extrusion. |
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| 19331. |
Carbon picks up can be of what order?(a) 10%(b) 15%(c) 20%(d) 25% |
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Answer» Right option is (b) 15% Easy explanation: In carbon pick up, there is an increase in the carbon content because of absorption from coke, but there is a reduction also, because of oxidation. The order of carbon pick up can be of 15%. |
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| 19332. |
For measuring glue line thickness between aluminium sheets, what should the thickness of the sheet be?(a) 1.2 mm(b) 1.4 mm(c) 1.6 mm(d) 1.8 mm |
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Answer» The correct answer is (c) 1.6 mm The best I can explain: For measuring the glue line thickness of aluminium sheets using eddy current method, initially the surface has to be vitally cleaned. The thickness of the aluminium sheet for calculating glue line thickness is 1.6mm. |
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| 19333. |
Incomplete welding may cause which of the following defect?(a) Folds(b) Laminations(c) Wavy edges(d) Zipper cracks |
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Answer» The correct answer is (b) Laminations The best I can explain: Because of incomplete welding in the blow holes and the pipes, small laminations occur, causing the strength of the material to reduce. |
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| 19334. |
How many dies are used in reciprocating flat die machines?(a) 2(b) 3(c) 4(d) 5 |
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Answer» Right option is (a) 2 To explain: In a reciprocating flat die machine, there are only two dies which are used, one of them is stationery, while the other is reciprocating. |
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| 19335. |
What is the conductivity of a 7075-T6 aluminium sheet with an average thickness of 1.6 mm?(a) 30 IACS(b) 31 IACS(c) 32 IACS(d) 33 IACS |
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Answer» The correct answer is (b) 31 IACS Explanation: None. |
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| 19336. |
What is the minimum capacity of an air furnace?(a) 5 tons(b) 7 tons(c) 9 tons(d) 11 tons |
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Answer» The correct choice is (a) 5 tons To explain I would say: Reverberatory furnace is used for the production of malleable iron and gray iron castings. The minimum capacity of an air furnace or a reverberatory furnace is around 5 tons. |
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| 19337. |
Which of the following is a metal shaping process?(a) Press forging(b) Broaching(c) Riveting(d) Lapping |
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Answer» Correct choice is (a) Press forging To explain I would say: Among the following, broaching is a metal machining process or a metal removal process, riveting is a metal joining process, lapping is a surface finishing process and press forging is a shaping process. |
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| 19338. |
Which of the following is not a surface finishing process?(a) Honing(b) Grinding(c) Boring(d) Lapping |
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Answer» Right answer is (c) Boring The explanation: Honing, grinding, anodizing, lapping, polishing and metal spraying are a few of the surface finishing techniques. But, boring is not one of them, it is a technique that is used for metal removal process. |
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| 19339. |
Which of the following metal is used in the wire drawing process in die making?(a) Copper(b) Iron(c) Tungsten(d) Magnesium |
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Answer» Correct answer is (c) Tungsten Explanation: For making dies in the wire extrusion process, copper or iron or magnesium cannot be used, but the compound tungsten carbide is used. |
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| 19340. |
In the following figure of the air furnace, what does the question mark represent?(a) Bungs(b) Hearth(c) Fire bridge(d) Fire bars |
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Answer» The correct choice is (c) Fire bridge To explain I would say: The question mark in the picture is depicting a fire bridge. This bridge is used for holding the molten metal. The given figure is that of an air furnace or a reverberatory furnace. |
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| 19341. |
_________ is a collection of inorganized facts.a .Application b. System c. Information d. Data |
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Answer» The correct option is (d) Data. Data is the collection of unorganized facts, which can include words, numbers, images and sounds. E Computer manipulates and processes the data to create information. |
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| 19342. |
After how many heats, should the refractory lining be renewed?(a) 50-100(b) 100-200(c) 200-300(d) 300-400 |
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Answer» Right option is (c) 200-300 Easy explanation: The refractory lining must be renewed, as the constant heating processes may cause it to damage. After approximately, 200 to 300 heats, the refractory lining should be renewed for a smooth operation. |
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| 19343. |
Aman, a freelance web site developer, has been assigned a task to design few web pages for a book shop. Help Aman in deciding out of static web page and dynamic web page, what kind of web pages should be designed by clearly differentiating between static and dynamic web pages on at least two points. ORPriyanka, a beginner in IT field has just started learning web technologies. Help her in understanding the difference between website and web pages with the help of a suitable general example of each. |
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Answer» Differentiation between static and dynamic web pages:
OR The difference between a website and a web page is that a website is a collection of different web pages containing information on a particular topic. A web page is an individual page of a big website usually containing more specific information. If we compare a website with a book, then a webpage can be compared with a single page of that book. |
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| 19344. |
Which of the following is not a metal removing process?(a) Grinding(b) Milling(c) Swaging(d) Hobbing |
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Answer» Correct choice is (c) Swaging For explanation I would say: Grinding, milling, hobbing, planning, reaming, shaping, boring, turning and broaching are a few of the techniques of metal removing process. But, swaging is not a part of them, it is a type of metal shaping process. |
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| 19345. |
How many times will the loop execute? int value1 =7,value2=19; do { JOptionPane.showMessageDialog(null,value1+value2); value1=value1+2; value2=value2-2; } while(value1<=value2); |
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Answer» The answer is 4 times. |
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| 19346. |
Albert works as a website developer in Global Website Designers company. Currently he has created following tags in XML:<STUDENT>... </STUDENT><Studen> .... </Student>Are these tags part of HTML code or XML code? Are these same same or different? |
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Answer» These tags are part of XML code. These tags are different. |
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| 19347. |
Up to what size can wires can be drawn by wire drawing process?(a) 0.01mm(b) 0.02mm(c) 0.03mm(d) 0.04mm |
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Answer» Correct answer is (c) 0.03mm To explain I would say: It may be counted among one of the limitations of drawing process, that very thin wires can only be drawn from it. In wire drawing process, wires can be drawn up to the size of 0.03mm. |
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| 19348. |
In an automobile engine, up to what percent of parts are manufactured by casting?(a) 65%(b) 75%(c) 80%(d) 90% |
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Answer» Right answer is (d) 90% Best explanation: Casting is one of the most all round process used in manufacturing. Up to 90% of the automobile engine parts are manufactured using casting, and around 50% of the total weight of the tractor is manufactured using casting. |
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| 19349. |
Which of the following is not made using extrusion?(a) Window frames(b) Doors(c) Helmets(d) Rods |
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Answer» Correct choice is (c) Helmets Best explanation: Among the following, helmets are not manufactured using extrusion, whereas all other products can be manufactured using extrusion. |
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| 19350. |
Which of the following is not a type of a foundry?(a) Captive foundry(b) Jobbing foundry(c) Semi Production foundry(d) Auto production foundry |
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Answer» Right choice is (d) Auto production foundry Easy explanation: Foundries are classified according to their type of work and the form of constitution and structure of their organization. The foundries are hence classified into four types namely, captive foundry, jobbing foundry, semi production foundry and production foundry. |
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