MCQOPTIONS
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MCQOPTIONS
This section includes 2171 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
The Weldability of the metals in Ascending order |
| A. | Low Alloy Steel, Stainless Steel, Cast Iron, Steel |
| B. | Low Alloy Steel, Cast Iron, Steel, Stainless Steel |
| C. | Stainless Steel, Low Alloy Steel, Cast Iron, Steel |
| D. | Stainless Steel, Low Alloy Steel, Steel, Cast Iron |
| Answer» D. Stainless Steel, Low Alloy Steel, Steel, Cast Iron | |
| 352. |
Which of the following is not included in weldability? |
| A. | Ability of mechanical soundness |
| B. | Serviceability of joint |
| C. | Strain relieving brittleness |
| D. | Metallurgical compatibility of metal |
| Answer» D. Metallurgical compatibility of metal | |
| 353. |
During fabrication joining of two or more components are ___ |
| A. | Temporarily |
| B. | Permanently |
| C. | Temporarily or permanently both |
| D. | None of the above |
| Answer» D. None of the above | |
| 354. |
Full form of OCV is |
| A. | Output current voltage |
| B. | Open command voltage |
| C. | Open current voltage |
| D. | Output command voltage |
| Answer» D. Output command voltage | |
| 355. |
The gap between two plates to be joined with a view to obtain full penetration are |
| A. | 1 to 3 mm |
| B. | 3 to 5 mm |
| C. | 5 to 8 mm |
| D. | 5 to 10 mm |
| Answer» C. 5 to 8 mm | |
| 356. |
Which type of plates cannot be welded in single pass |
| A. | Thick plates |
| B. | Thin Plates |
| C. | all |
| D. | none |
| Answer» B. Thin Plates | |
| 357. |
Which type of Power source is Solid State |
| A. | Static type |
| B. | Rotating type |
| C. | Special type |
| D. | None of them |
| Answer» D. None of them | |
| 358. |
The filling of cement slurry in the space between the machine bed plate and foundation top for the purpose of gripping or holding the machine firmly with the foundation is known as |
| A. | Erection |
| B. | Grouting |
| C. | Installing |
| D. | Alignment |
| Answer» C. Installing | |
| 359. |
Full-Form of the MMAW is |
| A. | Manual metal arc welding |
| B. | Molted metal arc welding |
| C. | Mix Metal arc welding |
| D. | Metal arc welding |
| Answer» B. Molted metal arc welding | |
| 360. |
The concrete mixture of Poor strength is prepared by mixing cement, sandand gravel in proportion of |
| A. | 1 : 3 : 6 |
| B. | 1 :2 : 4 |
| C. | 1 : 5 : 3 |
| D. | 1 : 3 : 5 |
| Answer» B. 1 :2 : 4 | |
| 361. |
During the horizontal position of the weld, the slope would be up to |
| A. | 5º |
| B. | 10º |
| C. | 3º |
| D. | 8º |
| Answer» C. 3º | |
| 362. |
During the welding power require to produce arc to join the metals are |
| A. | Low voltage low ampere |
| B. | Low voltage high ampere |
| C. | High voltage low ampere |
| D. | High voltage high ampere |
| Answer» C. High voltage low ampere | |
| 363. |
The percentage of __ minutes duration during which the power source with necessary output can be used without causing any damage |
| A. | 5 |
| B. | 10 |
| C. | 50 |
| D. | 60 |
| Answer» C. 50 | |
| 364. |
Degree of atomization is better in |
| A. | Air spray painting |
| B. | Airless spray painting |
| C. | all |
| D. | none |
| Answer» C. all | |
| 365. |
Which of the following is an example of plastic welding? |
| A. | Gas welding |
| B. | Arc welding |
| C. | Forge welding |
| D. | Thermit welding |
| Answer» D. Thermit welding | |
| 366. |
In welding using Single-V and Single-U edge beveling angle is of |
| A. | 15º to 30º |
| B. | 30º to 60º |
| C. | 60º to 80º |
| D. | 5º to 15º |
| Answer» D. 5º to 15º | |
| 367. |
Which of the instrument used to checking of alignment |
| A. | Universal bridge |
| B. | Straight edge |
| C. | Dial indicator |
| D. | All of them |
| Answer» E. | |
| 368. |
The metals having good weldability, in descending order are |
| A. | cast steel, iron, carbonsteel, castiron |
| B. | carbon steel, iron, cast steel, castiron |
| C. | iron, carbonsteel, cast steel, castiron |
| D. | castiron, iron, carbon steel, cast steel |
| Answer» B. carbon steel, iron, cast steel, castiron | |
| 369. |
The boiler is heavy but vibration then which type of concrete mixture is their |
| A. | Lean |
| B. | Medium |
| C. | Stronger |
| D. | none |
| Answer» C. Stronger | |
| 370. |
The thickness of raft is taken for hard soil is |
| A. | 10 to 50 cm |
| B. | 50 to 90 cm |
| C. | 90 to 120 cm |
| D. | 120 to 150 cm |
| Answer» D. 120 to 150 cm | |
| 371. |
Laser welds are not influenced by _____ |
| A. | electric field |
| B. | magnetic field |
| C. | radio waves |
| D. | ultraviolet rays |
| Answer» C. radio waves | |
| 372. |
Which of the following is/are surface preparation methods? |
| A. | sand blasting |
| B. | ball blasting |
| C. | both |
| D. | none |
| Answer» D. none | |
| 373. |
Choose the color of acetylene cylinder |
| A. | Maroon |
| B. | Yellow |
| C. | Black |
| D. | Red |
| Answer» B. Yellow | |
| 374. |
The followingwelding process is usedtoweldfastener to plateswithout drillingorpunchingholes? |
| A. | Electroslag welding |
| B. | Oxy-acetylene welding |
| C. | Butt welding |
| D. | Stud welding |
| Answer» E. | |
| 375. |
In butt joint, which of the edge preparation is costlier |
| A. | V- shape |
| B. | U-Shape |
| C. | all |
| D. | none |
| Answer» C. all | |
| 376. |
In arc welding voltage is dependent of _____ |
| A. | Arc length |
| B. | Arc gap |
| C. | Both of them |
| D. | None of them |
| Answer» D. None of them | |
| 377. |
In power-sources Transformer can change polarity or not? |
| A. | Yes |
| B. | No |
| C. | all |
| D. | none |
| Answer» C. all | |
| 378. |
Which of power source is Rectifier? |
| A. | Static type |
| B. | Rotating type |
| C. | Special type |
| D. | None of them |
| Answer» B. Rotating type | |
| 379. |
Full form of AISC is |
| A. | American Inspection Of steel Construction |
| B. | American Institute of Structural Construction |
| C. | American Institute of Steel Construction |
| D. | An Indian Institute of Steel Construction |
| Answer» D. An Indian Institute of Steel Construction | |
| 380. |
During the Inclined position of the weld Rotation between |
| A. | 0º-15º |
| B. | 0º-30º |
| C. | 0º-45º |
| D. | 0º-90º |
| Answer» E. | |
| 381. |
For engine, compressor and pump which type of foundation are used |
| A. | Box type foundation |
| B. | Block type foundation |
| C. | Frame type foundation |
| D. | Round type foundation |
| Answer» C. Frame type foundation | |
| 382. |
In erection, the thickness of the bottom plate is kept ___ to the thickness offillet size |
| A. | Half |
| B. | Equal |
| C. | Double |
| D. | 1.5 times |
| Answer» C. Double | |
| 383. |
Which of the following material properties has no effect on laser beam machining? |
| A. | Reflectivity |
| B. | Thermal conductivity |
| C. | Weldability |
| D. | Electrical conductivity |
| Answer» E. | |
| 384. |
The raised portion from the parent metal in welding is known as? |
| A. | Deposition |
| B. | Fusion depth |
| C. | Penetration |
| D. | Reinforcement |
| Answer» E. | |
| 385. |
Ultrasonic testing is a portable process. |
| A. | True |
| B. | False |
| C. | all |
| D. | none |
| Answer» B. False | |
| 386. |
In lap joint thickness of the sheets is up to |
| A. | 3 mm |
| B. | 4 mm |
| C. | 10 mm |
| D. | 15 mm |
| Answer» B. 4 mm | |
| 387. |
Which of the following is affected by weld contour? |
| A. | Fatigue |
| B. | Creep |
| C. | Highpressureproperty |
| D. | Lowpressureproperty |
| Answer» B. Creep | |
| 388. |
The full form of DFW is |
| A. | Direct finish weld |
| B. | Direct fusion welding |
| C. | Diffusion welding |
| D. | Double fusion Welding |
| Answer» D. Double fusion Welding | |
| 389. |
Which ofthe followingwelding process is usedforweldingof sheetmetals in automobile and air craft industries? |
| A. | Shield metal arc welding |
| B. | Gas tungsten arc welding |
| C. | Thermit welding |
| D. | Resistance welding |
| Answer» E. | |
| 390. |
Laser beam weldingis a joining process. |
| A. | fission |
| B. | fusion |
| C. | coherent |
| D. | plastic |
| Answer» C. coherent | |
| 391. |
In resistance welding, two electrodes are made of |
| A. | Aluminium |
| B. | Copper |
| C. | Iron |
| D. | Bronze |
| Answer» C. Iron | |
| 392. |
Choose the color of oxygen cylinder |
| A. | Maroon |
| B. | Yellow |
| C. | Black |
| D. | Red |
| Answer» D. Red | |
| 393. |
In Edge preparation selection of joint is based on the following factors |
| A. | Effect of warping |
| B. | Cost of designing of the product |
| C. | Characteristics of the product |
| D. | All of them |
| Answer» E. | |
| 394. |
In arc welding, arc initiation voltage is of the order |
| A. | 20-60V |
| B. | 60-100V |
| C. | 100-140V |
| D. | 140-180V |
| Answer» C. 100-140V | |
| 395. |
The voltage needed in resistance welding does not depend upon |
| A. | Composition |
| B. | Area |
| C. | Thickness of weld |
| D. | Length of weld |
| Answer» E. | |
| 396. |
For plates of thickness more than 16 mm which weld is used |
| A. | Square butt weld |
| B. | Single V butt weld |
| C. | Double V butt Weld |
| D. | Double U butt Weld |
| Answer» E. | |
| 397. |
Which works are involved in erection |
| A. | Fixing and bringing in their position and to align their centres and angles |
| B. | To carry out the machine adjustments |
| C. | To carry out the leveling of the machine |
| D. | All of them |
| Answer» E. | |
| 398. |
For plates of thickness 3-5 mm which weld is used |
| A. | Square butt weld |
| B. | Single V butt weld |
| C. | Double V butt Weld |
| D. | Double U butt Weld |
| Answer» B. Single V butt weld | |
| 399. |
With the help of brushing ____ weld surface can be finished |
| A. | Internal only |
| B. | External only |
| C. | A & B both |
| D. | none |
| Answer» D. none | |
| 400. |
Which type of process is also known as the fabrication process? |
| A. | Casting |
| B. | Forming |
| C. | Joining |
| D. | None of them |
| Answer» D. None of them | |