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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A bullet is fired vertically upwards with a velocity of 2200 ft/s. Bullet ascends to a height of |
| A. | 56,900 ft |
| B. | 107 dynes |
| C. | 75,000 ft |
| D. | 48.300 ft |
| E. | 65,800 ft |
| Answer» D. 48.300 ft | |
| 2. |
A compressure force in boom in above problem is |
| A. | 107 dynes |
| B. | 1096 kg |
| C. | 886 kg |
| D. | 693 kg |
| E. | 1390 kg |
| Answer» F. | |
| 3. |
The slope on the road generally provided on the curves is known as |
| A. | Angle of repose |
| B. | Angle of friction |
| C. | Angle of banking |
| D. | Angle of reaction |
| E. | None of the above |
| Answer» D. Angle of reaction | |
| 4. |
A projectile is shot straight up with vo = 40 m/s. After how many seconds will it return if drag is neglected? |
| A. | 6 |
| B. | 107 dynes |
| C. | 4 |
| D. | 10 |
| E. | 8 |
| Answer» F. | |
| 5. |
A ball A of mass 0.25 kg moving on a smooth horizontal table with a velocity of 10 m/s strikes an identical stationary ball B on the table. If the impact is perfectly elastic, the velocity of the ball B just after the impact will be |
| A. | 2.5 m/s |
| B. | zero |
| C. | 5 m/s |
| D. | 10 m/s |
| E. | 107 dynes |
| Answer» D. 10 m/s | |
| 6. |
During planetary motion which of the following remains constant? |
| A. | Augular speed |
| B. | Linear velocity |
| C. | Angular acceleration |
| D. | Total angular momentum |
| E. | All of the above |
| Answer» C. Angular acceleration | |
| 7. |
Centroid of the are of circle shown in adjacement figure is |
| A. | r sin (?/2)/2 ?, 0 |
| B. | r sin (?)/?, 0 |
| C. | 2 r sin (?/2)/?, 0 |
| D. | 107 dynes |
| E. | 2r sin (?)/?, 0 |
| Answer» D. 107 dynes | |
| 8. |
What force is necessary to hold a weight of 100 kg suspended on a rope wrapped 3 times around a post ( |
| A. | 0.35 |
| B. | 0.8 |
| C. | 1.46 |
| D. | 2.85 |
| E. | 107 dynes |
| Answer» B. 0.8 | |
| 9. |
A stone weighing 20 N is whirling in a vertical circle at the extremity of a string 100 cm long. The tension in the string will be zero |
| A. | at the highest position |
| B. | at the lowest position |
| C. | at the midway position |
| D. | at none of the above |
| E. | 107 dynes |
| Answer» B. at the lowest position | |
| 10. |
A framed structure is perfect if it contains members equal to |
| A. | n - 3 |
| B. | 2n - 3 |
| C. | 2n - 2 |
| D. | n - 2 |
| E. | 2n - 1 |
| Answer» C. 2n - 2 | |
| 11. |
A hammer gains 50 Ns momentum in 0.05 sec. The average force on the hammer will be |
| A. | 500 N |
| B. | 2000 N |
| C. | 1500 N |
| D. | 107 dynes |
| E. | 1000 N |
| Answer» F. | |
| 12. |
Polar moment of inertia is |
| A. | Applicable to masses whereas moment of inertia is applicable to area only |
| B. | The moment of inertia for an area ralative to a line or axis which is out the plane of area |
| C. | Same as moment of inertia |
| D. | The moment of inertia for an area relative to a line or axis parallel to the centroidal axis |
| E. | The moment of inertia for an area relative to a line or axis perpendicular to the plane of the area |
| Answer» F. | |
| 13. |
The x coordinate of the centroid of the area enclosed by the parabolas y = x2 and x = y2 will be |
| A. | 107 dynes |
| B. | 0.44 |
| C. | 0.43 |
| D. | 0.45 |
| E. | 0.46 |
| Answer» E. 0.46 | |
| 14. |
Coulomb's law for the force between electric charges most closely resembles |
| A. | Newton's laws of motion |
| B. | Law of conservation of energy |
| C. | Gauss's theorem |
| D. | Newton's law of gravitation |
| E. | None of the above |
| Answer» E. None of the above | |
| 15. |
An automobile is travelling at 25 m/s. It takes 0.3 second to apply the brakes after which the deceleration is 6 m/s2. How far, in meters, does the automobile travel before it stops? |
| A. | 45 |
| B. | 107 dynes |
| C. | 40 |
| D. | 50 |
| E. | 60 |
| Answer» F. | |
| 16. |
In the second system of pulleys, if there are two pulley blocks having 'n1' and 'n2' pulleys in the first and second pulley blocks respectively, then the velocity ratio of the whole system will be equal to |
| A. | 2n1 + n2 |
| B. | n1 - n2 |
| C. | 107 dynes |
| D. | 2n1 + 2n2 |
| E. | n1 + n2 |
| Answer» C. 107 dynes | |
| 17. |
A 5 m ladder of mass 25 kg is placed in a position where its inclination to a vertical wall is at 30?. A 100 kg man is to climb the ladder. If the coefficient of static friction is 0.25 the height along ladder at which the slipping will be induced would be |
| A. | 2.4 m |
| B. | 1.6 m |
| C. | 0.8 m |
| D. | 1.2 m |
| E. | 0.5 m |
| Answer» D. 1.2 m | |
| 18. |
According to principle of transmissiblity of forces, when a force acts upon a body, its effect is |
| A. | maximum when it acts at C.G. of the body |
| B. | minimum when it acts at C.G. of the body |
| C. | different at different points of the body |
| D. | 107 dynes |
| E. | same at every point in its line of action |
| Answer» F. | |
| 19. |
A rope of weight 0.5 kg/m hangs from a drum for a height of 6 m. The work done in winding up the rope will be |
| A. | 9 kg-m |
| B. | 3 kg-m |
| C. | 12 kg-m |
| D. | 18 kg-m |
| E. | 6 kg-m |
| Answer» B. 3 kg-m | |
| 20. |
A plane is inclinea at angle ? to horizontal. If a body can just rest on a plane, determine the least force to draw the body up the plance |
| A. | W sin2? |
| B. | 2 W cos2? |
| C. | 107 dynes |
| D. | W cos2? |
| E. | 2 W sin2? |
| Answer» B. 2 W cos2? | |
| 21. |
The ideal angle of banking provided on roads |
| A. | Depends on (velocity)2 of vehicle |
| B. | Depends on the nature of road surface |
| C. | Depend on coefficient of friction between the road and the vehicle cantact point |
| D. | Depends on weight of the vehicle |
| E. | All above |
| Answer» B. Depends on the nature of road surface | |
| 22. |
A boy sitting in a rail road car throws a ball straight up into the air. The ball will fall back into his hands when the rail road car is |
| A. | moving at constant velocity |
| B. | accelerating forward while going around a curve of radius equal to the maximum height attained by the ball |
| C. | 107 dynes |
| D. | accelerating forwardA block A is dropped down a smooth inclined plane, while another identical block B is released for free fall from the same height |
| E. | decelerating |
| Answer» B. accelerating forward while going around a curve of radius equal to the maximum height attained by the ball | |
| 23. |
If four turms of rope around a horizontal post will hold a 100 kg weight with a pull of 1 kg, then |
| A. | 107 dynes |
| B. | 0.25 |
| C. | 0.18 |
| D. | 0.3 |
| E. | 0.11 |
| Answer» D. 0.3 | |
| 24. |
Let the only force acting on two bodies be their mutual interactions. If both bodies start from rest, the distances travelled by each will be a |
| A. | proportional to the respective masses of the bodies |
| B. | 107 dynes |
| C. | inversely proportional to the respective masses of the bodies |
| D. | directly proportional to the square of the respective masses of the bodies |
| E. | inversely proportional to the square of the respective masses of the bodies |
| Answer» D. directly proportional to the square of the respective masses of the bodies | |
| 25. |
Kinetic friction is |
| A. | Maximum value of frictional force when a body is about to move |
| B. | Friction between two well lubricated bodies |
| C. | Friction force acting when the body is in motion |
| D. | Driction force which keeps a body in motion |
| E. | None of the above |
| Answer» D. Driction force which keeps a body in motion | |
| 26. |
A body weighing 500 kg falls 8 cm and strikes a 500 kg/cm spring. The deformation of the spring will be |
| A. | ?8 cm |
| B. | 8 cm |
| C. | 4 cm |
| D. | 20.5 cm |
| E. | 2 cm |
| Answer» D. 20.5 cm | |
| 27. |
The angular velocity of earth is |
| A. | 0.00727 sec-1 |
| B. | 0.000727 sec-1 |
| C. | 0.0000727 sec-1 |
| D. | 0.00000727 sec-1 |
| E. | None of the above |
| Answer» D. 0.00000727 sec-1 | |
| 28. |
Given that the area of a figure varies as square of mean ordinate. The area of the figure is 154 sq. cm when the mean ordinate is 7 cm. The area of the figure when mean ordinate is 10.5 cm will be |
| A. | 364.9 cm |
| B. | 364.5 cm |
| C. | 360.6 cm |
| D. | 346.5 cm |
| E. | 356.3 cm |
| Answer» E. 356.3 cm | |
| 29. |
A 2 kg block is dropped from a height of 4 metre onto a spring of force constant k = 1960 N/m. The spring will be compressed through |
| A. | 1 cm |
| B. | 4.5 cm |
| C. | 3 cm |
| D. | 8 cm |
| E. | 107 dynes |
| Answer» E. 107 dynes | |
| 30. |
Maximum acceleration in above problem is |
| A. | 107 dynes |
| B. | 2?2/3 m/s2 |
| C. | ?2/s m/s2 |
| D. | 3?2 m/s2 |
| E. | 4?2/9 m/s2 |
| Answer» F. | |
| 31. |
The angular velocity of hour hand of a watch is |
| A. | 0.0001745 sec-1 |
| B. | 0.0001455 sec-1 |
| C. | 0.0000145 sec-1 |
| D. | 0.1045 sec-1 |
| E. | 0.001745 sec-1 |
| Answer» C. 0.0000145 sec-1 | |
| 32. |
A satellite orbits around the earth due to |
| A. | Celestial force |
| B. | Gravitational force |
| C. | Centrifugal force |
| D. | Centripetal force |
| E. | All of the above |
| Answer» D. Centripetal force | |
| 33. |
If w is the angular velocity of the pulley and T1 and T2 are tensions of driving and driven side then power transmitted equals |
| A. | (T1 + T2) w |
| B. | (T1 + 2T2) w |
| C. | 107 dynes |
| D. | (T1 - T2) w |
| E. | wT1 |
| Answer» E. wT1 | |
| 34. |
A cannon of weight 10 tonnes fires a shell of 50 kg with a muzzle velocity of 900 m/sec at an angle of 30?. The time taken for the shell to emerge from the barrel is 0.004 sec. The velocity of the cannon would be |
| A. | 3.9 m/sec |
| B. | 7.8 m/sec |
| C. | 8.95 m/sec |
| D. | 1.95 m/sec |
| E. | 5.85 m/sec |
| Answer» B. 7.8 m/sec | |
| 35. |
The angle which an inclined surface makes with the horizontal when a body placed on it is on the point moving down is known as |
| A. | Angle of friction |
| B. | Angle of limiting friction |
| C. | Angle of inclination |
| D. | Angle of repose |
| E. | None of the above |
| Answer» E. None of the above | |
| 36. |
A 2 m long shaft rotates about one end at 20 rad/s. It begins to accelerate with ? = 10 rads/s2. After how long, in seconds, will the velocity of the free end reach 100 m/s? |
| A. | 3 |
| B. | 107 dynes |
| C. | 5 |
| D. | 6 |
| E. | 7 |
| Answer» B. 107 dynes | |
| 37. |
One newton is equal to |
| A. | 106 dynes |
| B. | 105 dynes |
| C. | 104 dynes |
| D. | 103 dynes |
| E. | 107 dynes |
| Answer» C. 104 dynes | |
| 38. |
The shape of a suspended cable under its own weight is |
| A. | Catenary |
| B. | Elliptical |
| C. | Cycloidal |
| D. | Semi-circle |
| E. | Parabolic |
| Answer» B. Elliptical | |
| 39. |
The mass, in kg, of the earth if its radius is 6400 km, will be |
| A. | 6 x 1024 |
| B. | 6 x 1025 |
| C. | 107 dynes |
| D. | 6 x 1023 |
| E. | 6 x 1022 |
| Answer» B. 6 x 1025 | |
| 40. |
A car is travelling at 90 km/hour on a rough road where the coefficient of friction between the road and the tyre is 0.5. The distance the car will skid before stopping when the brakes are jammed suddenly would be |
| A. | 127.4 m |
| B. | 95.55 m |
| C. | 63.7 m |
| D. | 31.85 m |
| E. | 90 m |
| Answer» D. 31.85 m | |
| 41. |
Ice is slippery when a man walks on it because |
| A. | Increase of pressure causes it to melt |
| B. | Ice is brittle |
| C. | There is no friction |
| D. | It is very chill |
| E. | Its surface is smooth |
| Answer» B. Ice is brittle | |
| 42. |
A man pulls a cart with 100 N force from rest with an acceleration of 10 m/sec2 for 10 seconds. The work done by him is |
| A. | 500 KJ |
| B. | 50.96 KJ |
| C. | 101.92 KJ |
| D. | None of the above |
| E. | Tapered bearing |
| Answer» B. 50.96 KJ | |
| 43. |
A horizontal load of 120 kg/mt is to be carried by a cable suspended between supports at same level and 60 mts apart. If the maximum permissible tension is 36,000 kg the required length of cable is |
| A. | 63.3 mets |
| B. | 62.5 mts |
| C. | 60.8 mts |
| D. | 107 dynes |
| E. | 60.1 mts |
| Answer» F. | |
| 44. |
If you want to stop the car in the shortest distance on an icy road, you should |
| A. | 107 dynes |
| B. | not apply the brakes |
| C. | pump' the brakes |
| D. | push hard the brakes to lock the wheels |
| E. | push just hard enough to prevent slipping |
| Answer» F. | |
| 45. |
In the third system of pulleys, if there are n number of pulleys then the velocity ratio of the system will be |
| A. | 2n - 2 |
| B. | n |
| C. | 107 dynes |
| D. | 2n-1 |
| E. | 2n |
| Answer» E. 2n | |
| 46. |
TIES : STRUTS : |
| A. | purlins : piers |
| B. | angle : tee |
| C. | rolle support : hinge |
| D. | compression : tension |
| E. | 107 dynes |
| Answer» E. 107 dynes | |
| 47. |
What will be the duration of day and night if the earth shrinks to half the present radius? |
| A. | 6 hours |
| B. | 12 hours |
| C. | 107 dynes |
| D. | 3 hours |
| E. | 24 hours |
| Answer» B. 12 hours | |
| 48. |
Which of the following could be the unit of rotational inertia of a body in CGS system? |
| A. | cm4 |
| B. | gm-cm2 |
| C. | 107 dynes |
| D. | kg-cm2 |
| E. | gm-cm4 |
| Answer» C. 107 dynes | |
| 49. |
A bullet is fired from a fifle. If the rifle recoils freely, the kinetic energy of the rifle |
| A. | will be the same as the kinetic energy of the bullet |
| B. | will be less than the kinetic energy of the bullet |
| C. | 107 dynes |
| D. | will be more than the kinetic energy of the bullet |
| Answer» C. 107 dynes | |
| 50. |
A uniform cylinder of weight W is rolling while slipping on a rough horizontal surface under the influence of a horizontal force. The force of friction between the cylinder and the surface is |
| A. | Indeterminate |
| B. | Proportional to the coefficient of dynamic friction |
| C. | Determinate but depends on the acceleration of the cylinder |
| D. | 107 dynes |
| E. | Proportional to the coefficient of static friction |
| Answer» D. 107 dynes | |