MCQOPTIONS
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MCQOPTIONS
This section includes 467 Mcqs, each offering curated multiple-choice questions to sharpen your Railways knowledge and support exam preparation. Choose a topic below to get started.
| 401. |
A bird flies due east for 600 meters at a constant speed of 10 m/s. What is the bird's acceleration? |
| A. | With no change in velocity, there is no acceleration. |
| B. | 60 m/s |
| C. | 6 m/s/s |
| D. | 60 m/s/s |
| Answer» B. 60 m/s | |
| 402. |
Which of the following controls can change a car's velocity? |
| A. | The gas pedal |
| B. | The brake pedal |
| C. | The steering wheel |
| D. | All of the above |
| Answer» E. | |
| 403. |
What is the acceleration of a car that maintains a constant velocity of 100 km/hr for 10 sees? |
| A. | 0 |
| B. | 10 km/hr(s) |
| C. | 10m/hr(s) |
| D. | 1000 km/hr(s) |
| Answer» B. 10 km/hr(s) | |
| 404. |
A car stops and then a start accelerating uniformly at rate of \[3\,\,m\,\,{{s}^{-2}}\], speed of car after 20 seconds is |
| A. | \[40\,\,m\,\,{{s}^{-2}}\] |
| B. | \[60\,\,m\,\,{{s}^{-2}}\] |
| C. | \[100\,\,m\,\,{{s}^{-2}}\] |
| D. | \[30\,\,m\,\,{{s}^{-2}}\] |
| Answer» C. \[100\,\,m\,\,{{s}^{-2}}\] | |
| 405. |
The part of the car that can change velocity without changing speed is |
| A. | The steering wheel |
| B. | The brake |
| C. | The gas pedal |
| D. | Nonsense, it is impossible to change velocity without changing speed. |
| Answer» B. The brake | |
| 406. |
When a rock thrown straight upward gets to the exact top of its path, its |
| A. | velocity is 0 and its acceleration is about 10 m/s/s |
| B. | velocity is about 10 m/s and its acceleration is 0 |
| C. | velocity is about 10 m/s and its acceleration is about 10 m/s/s |
| D. | velocity is 0 and so is acceleration. |
| Answer» B. velocity is about 10 m/s and its acceleration is 0 | |
| 407. |
A particle moves in straight line with velocity\[{{v}_{1}}\], and\[{{v}_{2}}\] for time intervals which are in ratio 1:2. Find average velocity. |
| A. | \[\frac{{{v}_{1}}}{3}+\frac{2{{v}_{2}}}{3}\] |
| B. | \[\frac{{{v}_{1}}}{3}+\frac{{{v}_{2}}}{3}\] |
| C. | \[\frac{2{{v}_{1}}}{3}+\frac{{{v}_{2}}}{3}\] |
| D. | \[{{v}_{1}}+\frac{2vl2}{3}\] |
| Answer» B. \[\frac{{{v}_{1}}}{3}+\frac{{{v}_{2}}}{3}\] | |
| 408. |
One possible unit of speed is |
| A. | miles per hour |
| B. | meters per second |
| C. | yards per century |
| D. | all of the above |
| Answer» E. | |
| 409. |
A body moves in straight line with velocity \[{{v}_{1}}\] for 1/3rd time and for remaining time with\[{{v}_{2}}\]Find average velocity. |
| A. | \[\frac{{{v}_{1}}}{3}+\frac{2{{v}_{2}}}{3}\] |
| B. | \[\frac{{{v}_{1}}}{3}+\frac{{{v}_{2}}}{3}\] |
| C. | \[\frac{2{{v}_{1}}}{3}+\frac{{{v}_{2}}}{3}\] |
| D. | \[{{v}_{1}}+\frac{2{{v}_{2}}}{3}\] |
| Answer» B. \[\frac{{{v}_{1}}}{3}+\frac{{{v}_{2}}}{3}\] | |
| 410. |
The ball is projected up from ground with speed 30 m/sec. What is the average velocity for time 0 to 4 sec? |
| A. | 10 m/sec |
| B. | 20 m/see |
| C. | 15 m/sec |
| D. | zero |
| Answer» B. 20 m/see | |
| 411. |
A particle moves 2m east then 4m north then 5 m west. The distance is |
| A. | 11 m |
| B. | 10 m |
| C. | -11 m |
| D. | 5 m |
| Answer» B. 10 m | |
| 412. |
If the v-t graph is a straight line inclined to the time axis, then |
| A. | \[a=0\] |
| B. | \[a\ne 0\] |
| C. | \[a=\operatorname{constant}\ne 0\] |
| D. | \[a\ne \operatorname{constant}\ne 0\] |
| Answer» D. \[a\ne \operatorname{constant}\ne 0\] | |
| 413. |
For a moving body at any instant of time |
| A. | if the body is not moving, the acceleration is necessarily zero |
| B. | if the body is slowing, the retardation is negative |
| C. | if the body is slowing, the distance is negative |
| D. | if displacement, velocity and acceleration at that instant are known, we can find the displacement at any given time in future. |
| Answer» E. | |
| 414. |
Free fall of an object (in vacuum) is a case of motion with |
| A. | uniform velocity |
| B. | uniform acceleration |
| C. | variable acceleration |
| D. | constant momentum |
| Answer» C. variable acceleration | |
| 415. |
Choose the wrong statement from the following. |
| A. | The motion of an object along a straight line is a rectilinear motion |
| B. | The speed in general is less than the magnitude of the velocity |
| C. | The slope of the displacement-time graph gives the velocity of the body |
| D. | The area under the velocity-time graph gives the displacement of the body |
| Answer» C. The slope of the displacement-time graph gives the velocity of the body | |
| 416. |
An object accelerated downward under the influence of force of gravity. The motion of object is said to be |
| A. | uniform motion |
| B. | free fall |
| C. | non uniformly accelerated motion |
| D. | None of these |
| Answer» C. non uniformly accelerated motion | |
| 417. |
The area under acceleration time graph gives |
| A. | distance travelled |
| B. | change in acceleration |
| C. | force acting |
| D. | change in velocity |
| Answer» E. | |
| 418. |
Acceleration of a particle changes when |
| A. | direction of velocity changes |
| B. | magnitude of velocity changes |
| C. | speed changes |
| D. | Both [a] and [b] |
| Answer» D. Both [a] and [b] | |
| 419. |
What determines the nature of the path followed by the particle? |
| A. | Speed |
| B. | Velocity |
| C. | Acceleration |
| D. | Both [b] and [c] |
| Answer» E. | |
| 420. |
Which of the following can be zero, when a particle is in motion for some time? |
| A. | Distance |
| B. | Displacement |
| C. | Speed |
| D. | None of these |
| Answer» C. Speed | |
| 421. |
Which of the following is a one dimensional motion? |
| A. | Landing of an aircraft |
| B. | Earth revolving around the sun |
| C. | Motion of wheels of a moving train |
| D. | Train running on a straight track |
| Answer» E. | |
| 422. |
The equation relating the heat transfer rate glass window consists of: |
| A. | surface area |
| B. | thickness |
| C. | thermal conductivity value |
| D. | All the above |
| Answer» E. | |
| 423. |
Stainless steel pans are usually provided with copper bottoms. The reason for this could that. |
| A. | copper bottom makes the pan more durable |
| B. | such pans appear colorful |
| C. | copper is a better conductor of heat than the stainless steel |
| D. | none of the above |
| Answer» D. none of the above | |
| 424. |
Which of the following is a poor conductor of heat? |
| A. | Copper |
| B. | Concrete |
| C. | Mercury |
| D. | Air |
| Answer» E. | |
| 425. |
Which of the following will expand the most for same rise in temperature? |
| A. | Aluminium |
| B. | Glass |
| C. | Wood |
| D. | All will expand same |
| Answer» B. Glass | |
| 426. |
When water is heated from 0°C to 4°C, its volume |
| A. | increases |
| B. | decreases |
| C. | does not change |
| D. | first decreases and then increases |
| Answer» E. | |
| 427. |
Expansion during heating |
| A. | occurs only in solids |
| B. | increases the weight of a material |
| C. | generally decreases the density of a material |
| D. | occurs at the same rate for all liquids and solids |
| Answer» D. occurs at the same rate for all liquids and solids | |
| 428. |
Which of the following pairs may give equal numerical values of the temperature of a body? |
| A. | Fahrenheit and Celsius |
| B. | Celsius and Kelvin |
| C. | Kelvin and Reaumur |
| D. | None of these |
| Answer» B. Celsius and Kelvin | |
| 429. |
The materials which allow heat to pass through them easily are called as: |
| A. | insulators |
| B. | conductors of heat |
| C. | semi conductors |
| D. | none of the above |
| Answer» C. semi conductors | |
| 430. |
A good example of a second class lever is the... |
| A. | Can-opener |
| B. | Wheel barrow |
| C. | Hammer |
| D. | Tongs |
| Answer» C. Hammer | |
| 431. |
Which of the following is an example of a third-class lever? |
| A. | a nutcracker |
| B. | a screw |
| C. | a hand-held boat paddle |
| D. | a crow bar |
| Answer» D. a crow bar | |
| 432. |
Which of the following is an example of a wheel and axle? |
| A. | a pulley |
| B. | a screwdriver |
| C. | a block and tackle |
| D. | a nutcracker |
| Answer» C. a block and tackle | |
| 433. |
What two parts might make a pulley? |
| A. | wheel and axle |
| B. | wheel and wire |
| C. | wheel and screw |
| D. | wheel and fulcrum |
| Answer» C. wheel and screw | |
| 434. |
A screw is made up of__ wrapped around a post or rod. |
| A. | tracks |
| B. | springs |
| C. | threads |
| D. | strings |
| Answer» D. strings | |
| 435. |
Which is a characteristic of simple machines? |
| A. | They run on electricity. |
| B. | They take a long time to make. |
| C. | They have few or no moving parts. |
| D. | They are not very large |
| Answer» D. They are not very large | |
| 436. |
The Occupational Safety and Health Act applies to all employees who work for an employer that is engaged in a business affecting: |
| A. | internal security. |
| B. | interstate commerce. |
| C. | surrounding environment and natural ecosystems. |
| D. | overall health and safety of civilians. |
| Answer» C. surrounding environment and natural ecosystems. | |
| 437. |
The Occupational Safety and Health Act created three federal agencies for administration and enforcement. Which of the following is not one of them? |
| A. | The Occupational Safety and Health Administration (OSHA) |
| B. | The National Institute of Occupational Safety and Health (NIOSH) |
| C. | State Employee Health Commission (SEHC) |
| D. | The Occupational Safety and Health Review Commission (OSHRC) |
| Answer» D. The Occupational Safety and Health Review Commission (OSHRC) | |
| 438. |
What is an example of a personal factor that can lead to an accident? |
| A. | Insufficient stress-resistance. |
| B. | Insufficient preparation. |
| C. | An incorrect working method. |
| D. | None of these. |
| Answer» B. Insufficient preparation. | |
| 439. |
When the employee perceives threat in the environment even if there is no such threat existing in the environment, it is normally described as |
| A. | Organizational stressor |
| B. | Individual stressor |
| C. | Extra-organizational stressor |
| D. | None of these. |
| Answer» C. Extra-organizational stressor | |
| 440. |
Industrial safety management if that branch of management which is concerned with ____ hazards from the industries. |
| A. | Reducing |
| B. | Controlling |
| C. | Eliminating |
| D. | All of the above |
| Answer» E. | |
| 441. |
The following is indirect cost of accident |
| A. | Money paid for treatment of worker |
| B. | Compensation paid to worker |
| C. | Cost of lost time of injured worker |
| D. | All of the above |
| Answer» D. All of the above | |
| 442. |
The Occupational Safety and Health Review Commission is a: |
| A. | neutral agency. |
| B. | appellate body. |
| C. | legislative body |
| D. | quasi-judicial agency. |
| Answer» E. | |
| 443. |
Protection of organizational facilities and employees is called |
| A. | adverse situation |
| B. | security |
| C. | safety |
| D. | health |
| Answer» C. safety | |
| 444. |
Way of protecting individuals' well-being of health is classified as |
| A. | safety |
| B. | health |
| C. | adverse situation |
| D. | security |
| Answer» B. health | |
| 445. |
What is the best way to protect an employee working at a noisy machine? |
| A. | Allow the machine to only be used for short periods of time |
| B. | Provide a pair of ear defenders |
| C. | Reduce or eliminate noise from the machine |
| D. | Shout really loudly at them when they do something wrong |
| Answer» D. Shout really loudly at them when they do something wrong | |
| 446. |
Which of the following is NOT a factor that influences health and safety? |
| A. | Occupational factors e.g. work risks |
| B. | Environmental factors e.g. workplace noise |
| C. | Superstition factors e.g. walking under ladders, black cats etc. |
| D. | Human factors e. g error or haste |
| Answer» D. Human factors e. g error or haste | |
| 447. |
Which of the following is not a type of health hazard? |
| A. | Chemical |
| B. | Biological |
| C. | Magical |
| D. | Ergonomic |
| Answer» D. Ergonomic | |
| 448. |
What is the cause of most accidents? |
| A. | Poisoning |
| B. | Slips, trips and falls |
| C. | Electrocution |
| D. | Suffocation |
| Answer» C. Electrocution | |
| 449. |
Electrical fires are best tackled with a? |
| A. | Water fire extinguisher |
| B. | \[C{{O}_{2}}\]fire extinguisher |
| C. | Wet chemical fire extinguisher |
| D. | Foam fire extinguisher |
| Answer» C. Wet chemical fire extinguisher | |
| 450. |
Who should report unsafe working practices at work? |
| A. | Your supervisor only |
| B. | Your health and safety rep only |
| C. | Anyone who notices it |
| D. | Your line manager only |
| Answer» D. Your line manager only | |