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.
| 2401. |
Consider the following statements: 1. Pulverised fuel gives high and controlled burning rate. 2. Insufficient air causes excessive smoking of exhaust. 3. Excess air is provided to control the flue gas temperature 4. Effect of sulphur in fuel is to give high heat transfer rate. Witch of these statements are correct? |
| A. | 3 and 4 |
| B. | 2 and 3 |
| C. | 1 and 2 |
| D. | 1 and 4 |
| Answer» D. 1 and 4 | |
| 2402. |
High energy rate forming process used for forming components from thin metal sheets or deform thin tubes is: |
| A. | Petro-forming |
| B. | Magnetic pulse forming |
| C. | Explosive forming |
| D. | Electro-hydraulic forming |
| Answer» E. | |
| 2403. |
If in a steam turbine stage, heat drop in moving blade ling is 40 kJ/kg and that in the fixed blade ring is 60 kJ/kg, then the degree of reaction is: |
| A. | 0.2 |
| B. | 0.4 |
| C. | 0.68 |
| D. | 0.7 |
| Answer» C. 0.68 | |
| 2404. |
If in an impulse turbine designed for free vortex flow, the tangential velocity of steam at the root radius of 250 mm is 430 m/s and the Made height is 100 mm, then the tangential velocity of steam at the tip will be: |
| A. | 602 m/s |
| B. | 504 m/s |
| C. | 409 m/s |
| D. | 307 m/s |
| Answer» E. | |
| 2405. |
In large power boilers, soot blowers are used at regular intervals for cleaning the tubes. What is the fluid used for the same? |
| A. | Low pressure steam |
| B. | Hot gases |
| C. | Hot air |
| D. | Boiling water |
| Answer» B. Hot gases | |
| 2406. |
Which one of the following groups of devices are used for part recovery of heat from the flue gases leaving the tube banks in a water tube boiler? |
| A. | Drum internals, super heaters and economiser |
| B. | Economiser, air preheater and electrostatic precipitator |
| C. | Water wall, drum internals and super heaters |
| D. | Super heaters, economiser and air preheater |
| Answer» E. | |
| 2407. |
Consider the following statements: 1. Breeder reactor produces more plutonium than what it consumes. 2. Zirconium is used as a shield material. 3. Lead is the commonly used moderator. Of these, the ones which are not correct will include: |
| A. | 1, 2 and 3 |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1 and 3 |
| Answer» B. 1 and 2 | |
| 2408. |
The boiler used in the Nuclear Station at Tarapor is of the: |
| A. | Pressurized water type |
| B. | Boiling water type |
| C. | Gas cooled type |
| D. | Liquid metal cooled type |
| Answer» B. Boiling water type | |
| 2409. |
An induced draft fan is normally located at the: |
| A. | Outlet of the steam generator before the dust collector |
| B. | Outlet of the steam generator after the dust collector |
| C. | Inlet of the steam generator before the air heater |
| D. | Inlet of the steam generator after the air heater |
| Answer» D. Inlet of the steam generator after the air heater | |
| 2410. |
When inspection doors on the wails of boilers are opened, flame does not leap out because: |
| A. | These holes are small |
| B. | Pressure inside is negative |
| C. | Flame travels always in the direction of flow |
| D. | These holes are located beyond the furnace |
| Answer» D. These holes are located beyond the furnace | |
| 2411. |
The average number of fast neutrons produced in the fission of an U-235 atom is nearly: |
| A. | 1.23 |
| B. | 2.46 |
| C. | 3.69 |
| D. | 4.92 |
| Answer» C. 3.69 | |
| 2412. |
Consider the following statements: 1. Safety valve in boilers will operate as soon as the pressure reaches the rated value. 2. Two safety valves are provided for quick release of pressure. 3. Blow down valve is operated regularly to remove sediments if any. 4. Water level is monitored electrically in all large boilers Of these statements: |
| A. | 1 and 2 are correct |
| B. | 2 and 3 are correct |
| C. | 3 and 4 are correct |
| D. | 1 and 4 are correct |
| Answer» E. | |
| 2413. |
Which one of the following factors has the maximum effect of the equivalent evaporation of a boiler? |
| A. | Steam generator pressure |
| B. | Feed water inlet temperature |
| C. | Heating surface of the boiler |
| D. | Quality of steam produced. |
| Answer» B. Feed water inlet temperature | |
| 2414. |
Consider the following statements: 1. In a nozzle, if the fluid velocity is greater than the local sound velocity, the duct must converge. 2. In a diffuser, if the fluid velocity is greater than the local sound velocity, then the duct must converge. Which of the statements given above is/are correct? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | neither 1 nor 2 |
| Answer» D. neither 1 nor 2 | |
| 2415. |
For a convergent nozzle, what is the correct expression for the critical pressure, if the inlet pressure is \[{{P}_{1}}?\] |
| A. | \[{{p}_{1}}{{\left( \frac{2}{\gamma +1} \right)}^{\gamma /\gamma -1}}\] |
| B. | \[{{p}_{1}}{{\left( \frac{\gamma +1}{2} \right)}^{\gamma /\gamma -1}}\] |
| C. | \[{{p}_{1}}{{\left( \frac{2}{\gamma +1} \right)}^{\gamma -1/\gamma }}\] |
| D. | \[{{p}_{1}}{{\left( \frac{\gamma +1}{2} \right)}^{2\gamma /\gamma -1}}\] |
| Answer» B. \[{{p}_{1}}{{\left( \frac{\gamma +1}{2} \right)}^{\gamma /\gamma -1}}\] | |
| 2416. |
What is the value of the Mach number in the convergent portion of a steam nozzle? |
| A. | One |
| B. | zero |
| C. | > 1 |
| D. | \[>1(\ne 0)\] |
| Answer» D. \[>1(\ne 0)\] | |
| 2417. |
Neutral earthling is provided for |
| A. | the safety of personnel from electric shock |
| B. | reducing the vulgate stress on lines and equipment with respect to earth under various operating and Ault conditions |
| C. | controlling the earth fault currents for protective relaying |
| D. | both [b] and [c] |
| Answer» E. | |
| 2418. |
What is the advantage of the static capacitors? |
| A. | Low losses |
| B. | Easy installation |
| C. | Lower maintenance |
| D. | All of the above |
| Answer» E. | |
| 2419. |
A fault is more severe from the view point of RRRV if it is a |
| A. | Short length fault |
| B. | Medium length line fault |
| C. | Long length line fault |
| D. | None of these |
| Answer» B. Medium length line fault | |
| 2420. |
Draw-in-system of laying underground cables has the drawback (s) of |
| A. | higher cost |
| B. | reduced current carrying capacity of the cables |
| C. | requirements of much deeper and wider trenches |
| D. | All of the above |
| Answer» E. | |
| 2421. |
The power transmitted will be maximum when |
| A. | line reactance is high |
| B. | corona losses are minimum |
| C. | sending end voltage is more |
| D. | receiving end voltage is more |
| Answer» D. receiving end voltage is more | |
| 2422. |
The ripple voltage in dc output is small if |
| A. | frequency of supply voltage is small |
| B. | the filtering capacitor is small |
| C. | load current is small |
| D. | none of these |
| Answer» E. | |
| 2423. |
The function of Lightning arrester is |
| A. | to limiting the short-circuit fault current |
| B. | to provide path to high voltage surge to earth |
| C. | to reduce arcing |
| D. | none of these |
| Answer» C. to reduce arcing | |
| 2424. |
The function of steel wire in an ACSR conductor is to |
| A. | compensate for skin effect |
| B. | take care of surges |
| C. | provide additional mechanical strength |
| D. | reduce inductance |
| Answer» D. reduce inductance | |
| 2425. |
An alternate name for the completely interconnected network topology is |
| A. | Mesh |
| B. | Star |
| C. | Tree |
| D. | Ring |
| Answer» B. Star | |
| 2426. |
Which of the following extends a private network across public networks? |
| A. | Local area network |
| B. | Virtual private network |
| C. | Enterprise private network |
| D. | Storage area network |
| Answer» C. Enterprise private network | |
| 2427. |
'Bluetooth' technology allows |
| A. | Satellite communication |
| B. | Signal transmission on mobile phones only |
| C. | Wireless communication between equipment?s |
| D. | Landline phone to mobile phone communication |
| Answer» D. Landline phone to mobile phone communication | |
| 2428. |
A device that connects to a network without the use of cables is said to be |
| A. | distributed |
| B. | free |
| C. | centralized |
| D. | open source |
| Answer» C. centralized | |
| 2429. |
The first computers were programmed using ____. |
| A. | assembly language |
| B. | machine language |
| C. | spaghetti code |
| D. | source code |
| Answer» C. spaghetti code | |
| 2430. |
8085 Microprocessor has how many pins |
| A. | 30 |
| B. | 39 |
| C. | 40 |
| D. | 41 |
| Answer» D. 41 | |
| 2431. |
What is SIM? |
| A. | Select interrupt mask. |
| B. | Sorting interrupt mask. |
| C. | Set interrupt mask. |
| D. | None of these. |
| Answer» D. None of these. | |
| 2432. |
A time standard for a date entry clerk is to be set. A job is rated at 120 percent, it takes 30 seconds to enter each record and the allowances are 15%. What is the normal time? |
| A. | 25 seconds |
| B. | 30 seconds |
| C. | 36 seconds |
| D. | 40 seconds |
| Answer» D. 40 seconds | |
| 2433. |
Match List-I (Limits in normal distribution) with List-II (Population covered) and select the correct answer using the codes given below the lists: List-I (Limits in normal distribution) List-II (Population covered) A. \[\pm 3\sigma \] 1. 03413 B. \[\pm 2\sigma \] 2. 06826 C. \[\pm 1\sigma \] 3. 0.9973 4. 0.9545 Codes: |
| A. | A\[\to \]3, B\[\to \]4, C\[\to \]2 |
| B. | A\[\to \]3, B\[\to \]2, C\[\to \]4 |
| C. | A\[\to \]4, B\[\to \]2, C\[\to \]3 |
| D. | A\[\to \]4, B\[\to \]3, C\[\to \]2 |
| Answer» B. A\[\to \]3, B\[\to \]2, C\[\to \]4 | |
| 2434. |
A 60-foot gear when hobbed on a differential hobber with a two-start hob, the index change gear ratio is governed by which one of the following kinematic balance equations? |
| A. | 1 revolution of gear blank \[=1/60\] of hob revolutions |
| B. | 1 revolution of gear blank \[=1/60\] of hob revolutions |
| C. | 1 revolution of hob\[=2/60\] of hob revolutions |
| D. | 1 revolution of hob \[=1/60\] of blank revolutions. |
| Answer» D. 1 revolution of hob \[=1/60\] of blank revolutions. | |
| 2435. |
Match List-I with List-II and select the correct answer using the codes given below the lists: List-I List-II A. OC curve 1. Acceptance sampling B. AOQL 2. Dodge rooming table C. Binomial distribution 3. P-charts D. Normal curve 4. Control charts for variables Codes: |
| A. | A\[\to \]1, B\[\to \]2, C\[\to \]3, D\[\to \]4 |
| B. | A\[\to \]1, B\[\to \]3, C\[\to \]2, D\[\to \]4 |
| C. | A\[\to \]4, B\[\to \]2, C\[\to \]3, D\[\to \]1 |
| D. | A\[\to \]4, B\[\to \]3, C\[\to \]2, D\[\to \]1 |
| Answer» E. | |
| 2436. |
The standard time of an operation has been calculated as 10 min. The worker was rated at 80%. If the relaxation and other allowances were 25%, then the observed time would be: |
| A. | 12.5 min |
| B. | 10 min |
| C. | 8 min |
| D. | 6.5 min |
| Answer» C. 8 min | |
| 2437. |
Match List-I (Charts) with List-II (Details) and select the correct answer using the codes given below the lists: List-I List-II A. Multiple activity 1. Work factor chart system B. SIMO chart 2. Movement of material C. String diagram 3. Motion analysis D. MTM 4. Working an idle time of two or more men/machines Codes: |
| A. | A\[\to \]4, B\[\to \]3, C\[\to \]2, D\[\to \]1 |
| B. | A\[\to \]3, B\[\to \]4, C\[\to \]2, D\[\to \]1 |
| C. | A\[\to \]4, B\[\to \]3, C\[\to \]1, D\[\to \]2 |
| D. | A\[\to \]3, B\[\to \]4, C\[\to \]1, D\[\to \]2 |
| Answer» B. A\[\to \]3, B\[\to \]4, C\[\to \]2, D\[\to \]1 | |
| 2438. |
Process I requires 20 units of fixed cost and 3 units of variable costs per piece, while process II required 50 units of fixed costs and I units of variable cost per piece. For a company producing 10 pieces per day: |
| A. | Process I should be chosen |
| B. | Process II should he chosen |
| C. | Either of the two processes should he chosen |
| D. | A combination of process 1 and process II should be chosen |
| Answer» B. Process II should he chosen | |
| 2439. |
Determination of standard time in complex job system is best done through: |
| A. | Stop watch time study |
| B. | Analysis of micromotion |
| C. | Group timing techniques |
| D. | Analysis of standard data system. |
| Answer» B. Analysis of micromotion | |
| 2440. |
Match List-I with List-II and select the correct j answer List-I (Object) List-II (Tool) A. Improving utilization of supervisory staff 1. Micromotion study B. Improving plant layout 2. Work sampling C. Improving work layout 3. Flow process chamber D. Improving highly repetitive hand movements 4. Chronocyclegraph. Codes: |
| A. | A\[\to \]2, B\[\to \]3, C\[\to \]1, D\[\to \]4 |
| B. | A\[\to \]3, B\[\to \]2, C\[\to \]1, D\[\to \]4 |
| C. | A\[\to \]2, B\[\to \]3, C\[\to \]4, D\[\to \]1 |
| D. | A\[\to \]3, B\[\to \]2, C\[\to \]4, D\[\to \]1 |
| Answer» D. A\[\to \]3, B\[\to \]2, C\[\to \]4, D\[\to \]1 | |
| 2441. |
Consider the following factors: 1. Adequate incentive 2. Ease of administration 3. Flexibility 4. Guaranteed basic pay 5. Higher wages 6. Simplicity Among these, the factors which are to be considered while developing a good wage incentive plan would include: |
| A. | 1, 2, 3 and 5 |
| B. | 2, 3, 4 and 5 |
| C. | 1, 2, 4 and 6 |
| D. | 1, 2, 5 and 6 |
| Answer» D. 1, 2, 5 and 6 | |
| 2442. |
Earning in Rowan system\[=R\times {{T}_{\alpha }}+\frac{{{T}_{s}}-{{T}_{a}}}{{{T}_{s}}}\,{{T}_{\alpha }}R,\] Earning in \[50%\] Halsey plan \[=R\times {{T}_{\alpha }}+p({{T}_{s}}-{{T}_{a}})\,R,\] where R = hourly rate, \[{{T}_{\alpha }}\]actual completion time of tank, \[{{T}_{s}}\]= standard time of task, p = percentage allowed. Both Rowan system and \[50%\] Halsey plane will provided the same bearing when the actual time is: |
| A. | Equal to standard time |
| B. | Half the standard time |
| C. | One-quarter of standard time |
| D. | Twice the standard time. |
| Answer» C. One-quarter of standard time | |
| 2443. |
Consider the following steps: 1. Method time measurement 2. Work sampling 3. Work factor system. PMTS (predetermined motion time systems) in work study would include: |
| A. | 1, 2 and 3 |
| B. | 1, 3 and 4 |
| C. | 1, 2 and 4 |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 2444. |
Consider the following objective: 1. To train the individual regarding motion economy 2. To assist in research projects in the field of work study 3. To help in the collection of motion time data The objectives of Micromotion study would include: |
| A. | 1, 2 and 3 |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1 and 3 |
| Answer» E. | |
| 2445. |
Match List-I with List-II and select the correct answer using the code given below the lists: List-I (Technique) List-II (Suitable for) A. Time study 1. Short-cycle nonrepetitive jobs B. Work sampling 2. Manual operations C. Analytical estimation 3. Short-cycle repetitive jobs D. MTM 4. Long-cycle jobs/ heterogeneous operations/operations involving team work Codes: |
| A. | A\[\to \]2, B\[\to \]4, C\[\to \]1, D\[\to \]3 |
| B. | A\[\to \]3, B\[\to \]1, C\[\to \]4, D\[\to \]2 |
| C. | A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3 |
| D. | A\[\to \]3, B\[\to \]4, C\[\to \]1, D\[\to \]2 |
| Answer» E. | |
| 2446. |
The following data is available form time study on a job: Observed time \[=0.75\] min., rating = 110% relaxation allowance = 10% personal allowance = 3%, delay allowance = 2%. All allowances are expressed in % of normal time. What is the approximate standard time for this job? |
| A. | 0.95 minutes |
| B. | 0.625 minutes |
| C. | 0.825 minutes |
| D. | 0.74 minutes |
| Answer» B. 0.625 minutes | |
| 2447. |
For a manual operation observed time data are given below: Recorded time : 15 minute Rating of the worker : 80% Personal allowance : 0.6 minute Basic fatigue allowance : 0.8 minute Contingency work allowance : 12 minute Unavoidable delay allowance : 11 minute What is the standard time for the operation? |
| A. | 16.4 minute |
| B. | 175 minute |
| C. | 185 minute |
| D. | none of the above |
| Answer» E. | |
| 2448. |
What is a chart that shows the step-by-step procedure used and the inter-relationship between anyone Or more persons, forms or products when the procedure involves movement from place to place, called: |
| A. | Multi activity chart |
| B. | simo chart |
| C. | Flow process chart - man analysis |
| D. | Process chart - combined analysis |
| Answer» B. simo chart | |
| 2449. |
Match List-I with List-II and select the correct answer using the code given below the lists: List-I (Type of Job) List-II (Appropriate Method-study Technique) A. Complete sequence of operations 1. Flow diagram B. Factory layout: movement of materials 2. Flow process chart C. Factory Layout: movement of workers 3. Multiple activity chart D. Gang work 4. String diagram Codes: |
| A. | A\[\to \]4, B\[\to \]3, C\[\to \]2, D\[\to \]1 |
| B. | A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3 |
| C. | A\[\to \]4, B\[\to \]1, C\[\to \]2, D\[\to \]3 |
| D. | A\[\to \]2, B\[\to \]3, C\[\to \]4, D\[\to \]1 |
| Answer» C. A\[\to \]4, B\[\to \]1, C\[\to \]2, D\[\to \]3 | |
| 2450. |
For a manual operation of study the total processing standard time using a chronometer, following observations were made: Processing time : 16 minutes Rating of the worker : 120% Personal allowance : 0.6 minutes Basic fatigue allowance : 1.92 minutes Unavoidable delay allowance : 1.08 minutes What is the standard operation time for the operation? |
| A. | 16 minutes |
| B. | 17.92 minutes |
| C. | 21.52 minutes |
| D. | none of the above |
| Answer» E. | |