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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.
| 19251. |
He made a rush at the door without realizing it ___ by me earlier. A) locks B) is locked C) was locked D) am locking E) had been locked |
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Answer» Correct option is E) had been locked |
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| 19252. |
People Who Wear UniformsPeople who put out fires are called ___. |
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Answer» Correct answer is firefighters |
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| 19253. |
Someone who breaks into houses is a ______ |
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Answer» Correct option is burglar |
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| 19254. |
What do we call someone whose job is to repair taps and baths? A) tailor B) carpenter C) bricklayer D) plumber |
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Answer» Correct option is D) plumber |
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| 19255. |
Enumerate the benefits of security lighting. |
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Answer» The benefits of security lighting are as under: 1. It acts as deterrent against the intruders 2. Helps in detection of intruders 3. It is useful for safety 4. It is convenient to patrolling staff |
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| 19256. |
Enumerate four benefits of drills. |
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Answer» 1) Drills help to develop team work 2) Drills help to develop Self confidence 3) Drills help to prepare emergency team to work under pressure 4) Drills help to prepare crew to work effectively in emergency situation. |
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| 19257. |
Write a short note on boxing. |
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Answer» Boxing is a contact sport, in which two opponents fight with each other under a referee. Players wear gloves and other safety gears. Boxing fight is called bout divided into normally three rounds of three minutes each. Players fight as per weight category. Boxing is played worldwide including the Olympics. |
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| 19258. |
What is the difference between infants and toddler? |
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Answer» Infants- 0 to 1-year-old Toddler- 1 to 3-year-old. |
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| 19259. |
In schools, colleges, offices, malls, drills are getting practiced. What can be the benefits of drills? |
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Answer» Benefits of Drills ● Drills help develop teamwork. ● Drills help develop self-confidence. ● Drills help to prepare crew for responding rapidly and effectively in an emergency. ● Drills can help prepare the crew to make decisions under pressure. ● Drills can help to identify how procedures might be improved. ● Drills help the crew to become familiar with the equipment and procedures and whether they are working properly. |
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| 19260. |
State the rescue and evacuation drills that are commonly conducted. |
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Answer» Common rescue and evacuation drills are: 1. Fire drill 2. Drills on use of rescue equipment like ropes, knots, stretchers, fire extinguishers, first aid kit, etc. 3. Use of floatation devices 4. Use of personal protection equipment |
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| 19261. |
How can you close any presentation? |
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Answer» A presentation can be closed in any one of the following ways: • Select Close option from the File menu. • Click the Close Document button on the right side of the Menu bar. |
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| 19262. |
Describe the roles and functions of Indo-Tibetan Border Police (ITBP). |
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Answer» Roles and functions of Indo-Tibetan Border Police (ITBP) are: 1. keep vigil on Northern borders and detection and prevention of border violation 2. check illegal immigration and trans-border smuggling and crimes 3. provide security to sensitive installation, banks and designated persons 4. restore and preserve order in any area in the event of disturbance 5. come in the aid of civil authority, in the event of natural disaster |
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| 19263. |
To "catch on" means _____. A) to understand B) to be punished C) to grab something |
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Answer» Correct option is A) to understand |
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| 19264. |
______ was more than mere nervousness: it was a real phobia. A) He was afraid of flying B) His fear of flying C) Afraid of flying D) If he was afraid of flying |
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Answer» Correct option is B) His fear of flying |
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| 19265. |
The decision of the judges in the final round of selection of participants will make or break him. (a) to bring success or ruin (b) will cause injury (c) will mitigate pain (d) will help |
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Answer» (a) to bring success or ruin |
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| 19266. |
A photographic print is made from a ______ |
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Answer» Correct option is negative |
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| 19267. |
Which of the following manufacturing processes is mainly considered for producing the components of very high strength?(a) Casting(b) Forging(c) Extrusion(d) Rolling |
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Answer» Correct option is (b) Forging The explanation: Forging is a deformation process in which the material is compressed between the dies by using the impact load or hydraulic load. This process includes large forces that gradually or instantly deformed the material resulting in production of variety of high strength components like connecting rods, gears, jet engine turbine parts, aircraft parts etc. |
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| 19268. |
Which of the following materials is used for the manufacturing of dies and punches in the sheet metal forming?(a) Grey cast iron(b) Copper(c) Aluminium(d) Carbide |
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Answer» Correct choice is (d) Carbide Easiest explanation: Carbide is mainly used for the manufacturing of dies and punches in the sheet metal forming operations. Sometimes tool steel is also preferred to maintain the lateral rigidity in the tools. Dies and punches must possess mechanical properties such as hardness, strength, rigidity, toughness, machinability etc. |
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| 19269. |
With an increase in the density of the material who does it affect the power loss in eddy current?(a) Increases(b) Decreases(c) Does not change(d) Not related |
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Answer» Correct answer is (b) Decreases The explanation is: According to the power dissipation formula for eddy currents, power loss experienced is inversely related to the density of the material, that is, with an increase in the density of the material, there is a decrease in the power loss. |
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| 19270. |
With an increase in starting thickness, how would it affect the reduction?(a) Increases(b) Decreases(c) Won’t change(d) Not related |
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Answer» The correct option is (b) Decreases To elaborate: When the starting thickness of the workpiece gets increased, the reduction of correspondingly gets decreased. |
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| 19271. |
With an increase in the heat input of arc welding method, how does it affect the voltage applied?(a) Increases(b) Decreases(c) Remains same(d) No relation |
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Answer» Right choice is (a) Increases For explanation I would say: None. |
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| 19272. |
What is the molarity of 245.0 g of H2SO4 dissolved in 1.000 L of solution?(a) 2.408 M(b) 2.508 M(c) 2.598 M(d) 2.498 M |
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Answer» Correct answer is (d) 2.498 M For explanation I would say: MV = grams / molar mass (x) (1.000 L) = 245.0 g / 98.0768 g mol^-1 x = 2.49804235 M to four sig figs, 2.498 M. |
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| 19273. |
Which of the following manufacturing processes operates under the influence of external forces?(a) Metal forming(b) Powder metallurgy(c) Casting(d) Welding |
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Answer» Right option is (a) Metal forming Explanation: In the metal forming process, the raw material is converted into a desired shape by the application of external force. The metal work piece is subjected to plastic deformation which results in changing of shape and size of the work piece or specimen under the influence of external forces or stresses. |
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| 19274. |
What is the melting point of pure iron?(a) 1500°C(b) 1535°C(c) 1570°C(d) 1605°C |
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Answer» Right answer is (b) 1535°C For explanation: Iron exists in many allotropic forms, and every such allotropic form has a different melting, boiling and solidifying point. But, for pure iron, the melting point is 1535°C. |
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| 19275. |
Which of the following type of yield is referred to as “Maximum possible yields”?(a) Instantaneous yields(b) Theoretical yields(c) Observed yields(d) Non- instantaneous yields |
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Answer» The correct choice is (b) Theoretical yields Best explanation: Theoretical yields are sometimes referred to as maximum possible yields because they represent the yield in the absence of competing reactions. |
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| 19276. |
Which of the following types of iron represents purest form of iron in the manufacturing process?(a) Pig iron(b) White cast iron(c) Wrought iron(d) Grey cast iron |
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Answer» Correct choice is (c) Wrought iron Explanation: The purest form of iron is wrought iron which has negligible amount of carbon in it. It is highly malleable and tough material which can be used for making products by rolling or forging operation instead of casting process. It is basically obtained by melting pig iron which is also called crude iron. |
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| 19277. |
Which of the following represents the approximate percentage of metal loss during the blanking operation?(a) 2%(b) 5%(c) 10%(d) 30% |
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Answer» Right option is (d) 30% The best I can explain: In the blanking operation, the material loss is approximately 30 % of the metal sheet used in the cutting off operations. To reduce the waste or metal loss, the shapes to be cut are arranged on the metal sheet properly, this process of reducing metal loss is called as nesting. Nowadays, CAD software is used for this purpose. |
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| 19278. |
Which of the following materials cannot be used for making a core box?(a) Aluminium(b) Steel(c) Zinc(d) Cast iron |
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Answer» Correct option is (c) Zinc The explanation is: None. |
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| 19279. |
Which of the following stresses is takes place during performing the wire drawing operation?(a) Tensile stress(b) Bending stress(c) Indirect compressive stress(d) Shear stress |
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Answer» Correct answer is (c) Indirect compressive stress The explanation is: Wire drawing is a forming process in which a round metallic bar is pulled by a machine by generating indirect compressive stresses in the bar. This causes thinning of bar and results in the formation of thin wires that further used as a cable or for electricity purposes. Wire drawing is most suitable for ductile materials. |
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| 19280. |
What is the temperature in a core box typically?(a) 120°C – 160°C(b) 180°C – 260°C(c) 200°C – 270°C(d) 290°C – 350°C |
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Answer» The correct option is (b) 180°C – 260°C Easiest explanation: None. |
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| 19281. |
Thermite contains which metal?(a) Zinc(b) Copper(c) Aluminium(d) Manganese |
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Answer» Correct option is (c) Aluminium To elaborate: The reaction that takes place in between compounds and elements is known welding with solid reactants. These reaction are exothermic, that is give out heat as a product. Thermit reaction is a common example for this, which is mixture of aluminium and rust. |
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| 19282. |
Which of the following plot is also known as a double reciprocal plot?(a) Line-weaver burk plot(b) Eadie-Hofstee plot(c) Michaelis-menten plot(d) Langmuir plot |
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Answer» Right answer is (a) Line-weaver burk plot For explanation I would say: The double-reciprocal equation is obtained by taking the reciprocal of both sides of the Michaelis-Menten equation. The double-reciprocal (also known as the Lineweaver-Burk) plot is created by plotting the inverse initial velocity (1/V0) as a function of the inverse of the substrate concentration (1/[S]). The vmax can be accurately determined and thus KM can also be determined with accuracy because a straight line is formed. The slope of the resulting line is KM/vmax, the y-intercept is 1/vmax, and the x-intercept is -1/KM. |
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| 19283. |
What is the density of the plastic used in speed tip welding?(a) 916 kg/m^3(b) 923 kg/m^3(c) 946 kg/m^3(d) 982 kg/m^3 |
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Answer» The correct option is (c) 946 kg/m^3 Explanation: The plastic which is used in the process of speed tip welding is polypropylene or polypropene. It is classified under thermoplastics materials. The density of polypropylene is 946 kg/m^3 and it starts melting at 130°C. |
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| 19284. |
For how long is the heated steel held in full annealing process?(a) 1 minute(b) 3 minutes(c) 6 minutes(d) 9 minutes |
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Answer» Right answer is (b) 3 minutes To explain: The heated steel is held at the critical temperature for about 3 to 4 minutes. By doing this, the steel gets enough time to make the internal changes desired. |
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| 19285. |
Which of the following property is considered for controlling the porosity of the metal?(a) Solid solubility(b) Liquid solubility(c) Gas solubility(d) Flame solubility |
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Answer» Correct choice is (c) Gas solubility The explanation: The amount of solubility of gas in liquid or solid welded metals is considered to be an essential criteria for the control of porosity of the weld. The gas reactions which occur, then regulate porosity. |
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| 19286. |
Which of the following equipment is used for controlling the temperature of polymer material in the extrusion process?(a) Thermo resister(b) Thermometer(c) Thermocouple(d) Glass tube |
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Answer» Correct answer is (c) Thermocouple The best explanation: In extrusion process, polymer material pellets are fed into an extruder by a hopper. Then the material is conveyed by a feeding screw and forced through a shaped die that converts polymer materials into continuous polymer products. Heating elements are placed on the barrel which soften and melt the polymer. The temperature of the polymer material is mainly controlled by thermocouples. |
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| 19287. |
What is the amount of electric energy required per kg in dc welding operation?(a) 1-4 kWh(b) 3-7 kWh(c) 4-9 kWh(d) 6-10 kWh |
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Answer» The correct option is (d) 6-10 kWh Easy explanation: The amount of electrical energy consumed required per kg for a D.C. welding operation, is 6 kWh to 10 kWh. Direct current provides the advantage of distribution of the heat needed inside the arc. |
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| 19288. |
Which of the following materials are not suited for cold welding?(a) Brass(b) Steel(c) Silver(d) Gold |
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Answer» Right option is (b) Steel Easiest explanation: Cold welding process is not very suitable for alloys like steel, the reason being, cold welding cannot take place excellently in ferrous materials. Steel contains high amount of iron, hence it cannot be cold welded. |
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| 19289. |
Which of the following is not a type of solid state welding?(a) Projection(b) Ultrasonic(c) Friction(d) Diffusion |
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Answer» Correct option is (a) Projection Easiest explanation: Among the following, ultrasonic, friction and diffusion are a few of the types of related processes. Percussion is one of the forms of resistance welding processes. |
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| 19290. |
At what temperature, does fusion welding takes place?(a) 850°C(b) 900°C(c) 950°C(d) 1000°C |
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Answer» The correct answer is (b) 900°C Explanation: The process of fusion welding can be used for joining metal to a metal or a metal can be joined to a ceramic. For the joining of this process, a temperature of 900°C is provided for the approach. |
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| 19291. |
What is the minimum strength of mild steel arc welds on addition of microelements in the slag?(a) 43 kgf/mm^2(b) 39 kgf/mm^2(c) 45kgf/mm^2(d) 48 kgf/mm^2 |
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Answer» Right answer is (a) 43 kgf/mm^2 The best explanation: When there is an addition of some microelements in the slag along with a few materials being present which are not metals, there is an increase in the strength of the mild steel arc weld. The minimum amount of strength goes up to 43 kgf/mm^2, which is 430 N/mm^2. |
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| 19292. |
Which of the following types of fuel gas is commonly used in gas welding?(a) Biogas(b) Coal gas(c) Acetylene(d) Methane |
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Answer» The correct choice is (c) Acetylene To explain I would say: Gas welding is usually referred as oxy welding or oxy-fuel welding which is a process of joining metallic materials by application of heat produced by the gas flame. In gas welding, acetylene is commonly used as fuel gas which mixed with proper proportion of oxygen in a mixing chamber of welding torch. Gas welding can produce a hot flame of temperature about 3000-3500 ⁰C. |
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| 19293. |
What is the maximum strength of mild steel arc welds on addition of microelements in the slag?(a) 53 kgf/mm^2(b) 49 kgf/mm^2(c) 57kgf/mm^2(d) 61 kgf/mm^2 |
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Answer» Correct option is (c) 57kgf/mm^2 For explanation I would say: When there is an addition of some microelements in the slag along with a few nonmetallic inclusions, there is an increase in the strength of the mild steel arc weld. The maximum amount of strength goes up to 57 kgf/mm^2, which is 570 N/mm^2. |
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| 19294. |
Which of the following materials is required in a technique of decarburizing the molten steel?(a) Calcium carbonate(b) Sodium chloride(c) Carbon ferrochrome(d) Sodium ferrochrome |
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Answer» The correct choice is (c) Carbon ferrochrome The explanation: Decarburization technology uses high carbon ferrochrome to decarburize the molten steel at lower temperatures. If carbon oxidizes first with respect to chromium at low temperatures, then the reduction in pressure from atmosphere to a lower value will be required. Reduction in pressure is mostly done by vacuum oxygen decarburization (VOD) method. |
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| 19295. |
In which of the following processes most vibration is produced?(a) Press forging(b) Drop forging(c) Open die forging(d) Closed die forging |
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Answer» Right option is (b) Drop forging Easiest explanation: None. |
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| 19296. |
What is the source of fuel of the boiler in process energy?(a) Waste from FA processing(b) Waste from CO2 production(c) Waste from SO2 production(d) Waste from NO2 production |
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Answer» The correct option is (a) Waste from FA processing For explanation I would say: The waste that is achieved after processing of furfural alcohol is used to fuel the boiler in the process energy. |
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| 19297. |
Which of the following is not an advantage in low volume core production?(a) High production(b) Consistency(c) Mould rigidity(d) Hardenability |
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Answer» The correct choice is (d) Hardenability To elaborate: In low volume core production, it offers high rate of production, better consistency and mould rigidity, but not hardenability. |
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| 19298. |
What is the amount of silicon present in cast carbon steels?(a) 0.25% – 0.6%(b) 0.25% – 0.8%(c) 0.45% – 0.9%(d) 0.45% – 0.1% |
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Answer» The correct choice is (b) 0.25% – 0.8% To explain I would say: The amount of silicon that is present in terms of percentage composition is found to be 0.25% to 0.8%. Elements like silicon and manganese are added in the steel alloys for the purpose of deoxidation. |
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| 19299. |
Which of the following can help in determining the behaviour of the material in metal forming?(a) Size of material(b) Shape of material(c) Stress-strain curve(d) Color of material |
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Answer» Right choice is (c) Stress-strain curve The best I can explain: The behaviour of materials during metal forming can be determined by the stress-strain curve. The stress-strain curve for most of the materials is divided into an elastic region and a plastic region. In metal forming, the plastic region is the main consideration because the material is plastically deformed during the forming process. |
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| 19300. |
Which of the following is not a type of resistance welding?(a) Seam(b) Projection(c) Electro-slag(d) Spot |
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Answer» The correct option is (c) Electro-slag The best explanation: Among the following, seam, projection and spot are few of the types of resistance welding. Electro-slag is one of the forms of gas welding processes. |
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