MCQOPTIONS
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MCQOPTIONS
This section includes 2670 Mcqs, each offering curated multiple-choice questions to sharpen your Railways knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
Which of the following is commonly used die material? |
| A. | Tungsten |
| B. | Molybdenum |
| C. | Cast iron |
| D. | Hot work tool steel |
| Answer» E. | |
| 602. |
Which of the following is not a type of industrial forging? |
| A. | Drop forging |
| B. | Roll forging |
| C. | Blast forging |
| D. | upset forging |
| Answer» D. upset forging | |
| 603. |
Which of the following among the given options is a single point cutting tool? |
| A. | Milling cutter |
| B. | Hack saw blade |
| C. | Turning tool |
| D. | Grinding wheel |
| Answer» D. Grinding wheel | |
| 604. |
Which one of the following is a single point cutting tool? |
| A. | hack saw blade |
| B. | milling cutler |
| C. | pasting tool |
| D. | grinding wheel |
| Answer» D. grinding wheel | |
| 605. |
Electronic components are often joined by: |
| A. | soldering |
| B. | brazing |
| C. | welding |
| D. | adhesive |
| Answer» B. brazing | |
| 606. |
Sweep pattern is used for moulding parts having |
| A. | rectangular shape |
| B. | elliptical shape |
| C. | uniform symmetrical shape |
| D. | complicated shape having intricate details |
| Answer» D. complicated shape having intricate details | |
| 607. |
Welding process in which two pieces to be joined are over leaped and placed between two electrodes in known as: |
| A. | percussion welding |
| B. | spot welding |
| C. | seam welding |
| D. | projection welding |
| Answer» C. seam welding | |
| 608. |
In oxy-acetylene welding: |
| A. | Pressure is applied |
| B. | Filler metal is applied |
| C. | Both Pressure and filler metal arc applied |
| D. | Neither pressure, nor filler metal is applied |
| Answer» C. Both Pressure and filler metal arc applied | |
| 609. |
Arc stability is better with : |
| A. | AC welding |
| B. | DC welding |
| C. | Both [a] and [b] |
| D. | None of these |
| Answer» B. DC welding | |
| 610. |
Chilled surfaces are marked on the pattern by |
| A. | oblique red strips |
| B. | yellow cross strips |
| C. | black cross strips on yellow |
| D. | oblique red strips on yellow |
| Answer» E. | |
| 611. |
The melting point 01 the tiller metal in brazing should be above |
| A. | \[420{}^\circ C\] |
| B. | \[600{}^\circ C\] |
| C. | \[800{}^\circ C\] |
| D. | \[900{}^\circ C\] |
| Answer» B. \[600{}^\circ C\] | |
| 612. |
Approximate content of Vanadium in H.S.S. cutting tool material is |
| A. | 16% |
| B. | 4% |
| C. | 0.1% |
| D. | 1% |
| Answer» E. | |
| 613. |
Carburising flame is used to weld metals like |
| A. | steel |
| B. | copper and brass |
| C. | aluminium, stainless steel, zinc die castings, nickel, monel etc. |
| D. | carburised steel |
| Answer» D. carburised steel | |
| 614. |
The metal in machining operation is removed by |
| A. | tearing chips |
| B. | distortion of metal |
| C. | shearing the metal across a zone |
| D. | pushing the metal with tool |
| Answer» E. | |
| 615. |
The cutting tool used in the spark erosion machining process is called |
| A. | arc |
| B. | capacitor |
| C. | electrode |
| D. | dielectric |
| Answer» D. dielectric | |
| 616. |
Coining is the operation of |
| A. | cold forging |
| B. | hot forging |
| C. | cold extrusion |
| D. | piercing |
| Answer» B. hot forging | |
| 617. |
The phenomenon of weld decay occurs in |
| A. | cast iron |
| B. | brass |
| C. | bronze |
| D. | stainless steel |
| Answer» E. | |
| 618. |
External taper can be accurately measured with the help of |
| A. | sine bar and slip gauges |
| B. | dividing head |
| C. | precision balls and height gauge |
| D. | combination set |
| Answer» B. dividing head | |
| 619. |
Investment casting is used for |
| A. | shapes which are made by difficulty using complex patterns in sand casting |
| B. | mass production |
| C. | shapes which are very complex and intricate and can't be cast by any other method |
| D. | None of the above |
| Answer» D. None of the above | |
| 620. |
Hot tear refers to |
| A. | casting defect |
| B. | process of fabrication |
| C. | process of heat treatment |
| D. | weathering of non-ferrous materials |
| Answer» B. process of fabrication | |
| 621. |
V-block is used in the workshop to check |
| A. | roundness of a cylindrical work |
| B. | surface roughness |
| C. | dimensions of oval job |
| D. | taper on a job |
| Answer» B. surface roughness | |
| 622. |
Rotary swaging is used for |
| A. | manufacturing bolts and rivets |
| B. | manufacturing seamless tubes |
| C. | improving fatigue resistance |
| D. | reducing diameter of round bars and tubes by rotating die which open and close rapidly on the work |
| Answer» E. | |
| 623. |
In braze welding, the tiller metal is |
| A. | distributed by capillary attraction |
| B. | melted and deposited at the point where the weld is to be made |
| C. | both of the above |
| D. | not required |
| Answer» C. both of the above | |
| 624. |
Which of the following machines does not require quick return mechanism |
| A. | Slotter |
| B. | Planer |
| C. | Shaper |
| D. | Broaching |
| Answer» E. | |
| 625. |
Different types of insulators used for transmission lines are |
| A. | pin type only |
| B. | suspension type only |
| C. | strain type only |
| D. | pin type, suspension type and shackle type |
| Answer» E. | |
| 626. |
In which of the following cases are delay fuses used? |
| A. | For the protection of light circuits |
| B. | For the protection of power out-let circuits |
| C. | For the protection of fluorescent lamps |
| D. | Tor the protection of motors |
| Answer» E. | |
| 627. |
For constant voltage transmission, the voltage drop along the line is maintained constant by installing |
| A. | capacitors |
| B. | inductors |
| C. | resistors |
| D. | synchronous phase modifiers at the receiving end |
| Answer» E. | |
| 628. |
Annual operating cost of a generating plant consists of |
| A. | Fixed charges |
| B. | Semi fixed charges |
| C. | Operating or running charges |
| D. | All of these |
| Answer» E. | |
| 629. |
Skin effect in conductor is proportional to |
| A. | \[{{(diameter\,\,of\,\,conductor)}^{1/2}}\] |
| B. | diameter of conductor |
| C. | \[{{(diameter\,\,of\,\,conductor)}^{2}}\] |
| D. | \[{{(diameter\,\,of\,\,conductor)}^{4}}\] |
| Answer» D. \[{{(diameter\,\,of\,\,conductor)}^{4}}\] | |
| 630. |
What are fixed charges? |
| A. | Cost of investment irrespective of energy generated. |
| B. | Operating cost of the fuel along with cost of investment plant. |
| C. | Operating cost only. |
| D. | None of the above |
| Answer» B. Operating cost of the fuel along with cost of investment plant. | |
| 631. |
What is tariff? |
| A. | The rate at which electrical energy is produced in the plant. |
| B. | The rate at which electrical energy is supplied to the consumers. |
| C. | Both [a] and [b]. |
| D. | None of these. |
| Answer» C. Both [a] and [b]. | |
| 632. |
Which tariff is most ideal tariff for the consumer? |
| A. | Two part tariff |
| B. | Three part tariff |
| C. | Both [a] and [b] |
| D. | None of the above |
| Answer» C. Both [a] and [b] | |
| 633. |
What is the power factor tariff? |
| A. | It considers only maximum demand. |
| B. | It considers only semi fixed charges and the power factor. |
| C. | It considers only power factor. |
| D. | It considers the load factor. |
| Answer» D. It considers the load factor. | |
| 634. |
What is maximum value of power factor? |
| A. | 0.5 |
| B. | 1 |
| C. | 1.5 |
| D. | 0.95 |
| Answer» C. 1.5 | |
| 635. |
Lower power factor is usually not due to ____. |
| A. | Discharge lamp |
| B. | Arc lamps |
| C. | Incandescent lamps |
| D. | Induction furnace. |
| Answer» D. Induction furnace. | |
| 636. |
Power factor can be improved by connecting which among these? |
| A. | Static capacitors. |
| B. | Resistors. |
| C. | Synchronous condensers. |
| D. | Both [a] and [c]. |
| Answer» E. | |
| 637. |
What is the main disadvantage of phase advancers? |
| A. | Cannot be used for motors below 200 H.P |
| B. | Produces noise |
| C. | Can be used where synchronous motor is un admissible |
| D. | None of these |
| Answer» B. Produces noise | |
| 638. |
Resistance witching is normally resorted in case of |
| A. | Air blast CB |
| B. | Bulk oil CB |
| C. | Minimum oil CB |
| D. | All types of CBs. |
| Answer» B. Bulk oil CB | |
| 639. |
Which statement about the daily load curve is valid? |
| A. | The area under the curve gives the average demand. |
| B. | The ratio of the area under the curves to the total area of rectangle in which it is contained gives the load factor for the day. |
| C. | The peak of the curve gives the installed capacity of the plant |
| D. | The area of the curves divided by the number of hours gives load factor. |
| Answer» E. | |
| 640. |
The connected load of a consumer is 2 kW and his maximum demand is 1.5 kW. The load factor of the consumer is |
| A. | 0.75 |
| B. | 0.375 |
| C. | 1.33 |
| D. | None of these |
| Answer» E. | |
| 641. |
Fuses have got advantages of |
| A. | cheapest type of protection |
| B. | inverse time-current characteristic |
| C. | no maintenance |
| D. | current limiting effect under short-circuit conditions |
| E. | all of the above |
| Answer» F. | |
| 642. |
Use of additional shunt capacitor can be made for increasing the capability of line as it |
| A. | reduces surge impedance \[{{Z}_{0}}\] |
| B. | increases phase shift \[\beta \] |
| C. | increase in \[\alpha \] |
| D. | all of the above |
| Answer» B. increases phase shift \[\beta \] | |
| 643. |
By transmitting power at high voltage |
| A. | it will give poor voltage regulation |
| B. | it will give better voltage regulation |
| C. | it will not effect voltage regulation |
| D. | None of these |
| Answer» C. it will not effect voltage regulation | |
| 644. |
The conductor carries more current on the surface in comparison to its core. This phenomenon is called the |
| A. | Skin effect |
| B. | Corona |
| C. | Ferranti effect |
| D. | Lenz's effect |
| Answer» B. Corona | |
| 645. |
The sage of a transmission line is least affected owing to |
| A. | weight of the conductor |
| B. | current through the conductor |
| C. | atmospheric temperature |
| D. | ice deposited on the conductor |
| Answer» C. atmospheric temperature | |
| 646. |
The passive element that is used as interconnecting element for the stable operation of interconnected system is |
| A. | reactor |
| B. | resistor |
| C. | capacitor |
| D. | resistor and capacitor |
| Answer» B. resistor | |
| 647. |
Protective resistance to be connected between the sphere gap and the test equipment is required while measuring |
| A. | power frequency and higher frequency [a] [c] voltage |
| B. | power frequency and impulse voltage |
| C. | all kinds of voltages |
| D. | none of these |
| Answer» B. power frequency and impulse voltage | |
| 648. |
Corona loss in a transmission line is dependent on |
| A. | diameter of the conductor |
| B. | material of the conductor |
| C. | height of the conductor |
| D. | none of these |
| Answer» B. material of the conductor | |
| 649. |
High voltage Schring bridge is used to measure |
| A. | large capacitance without additional element |
| B. | small capacitance without additional element |
| C. | medium value capacitance |
| D. | None of these |
| Answer» C. medium value capacitance | |
| 650. |
Which fault gives rise to symmetrical fault currents? |
| A. | Single line to ground fault |
| B. | line to line fault |
| C. | Double line to ground fault |
| D. | Three phase fault |
| Answer» E. | |