This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
a pair of scissors has its blades 15 cm long it's handles are 7.5 cm long what is the mechanical advantage |
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Answer» MECHANICAL ADVANTAGE is EQUAL to LOAD by effort. 15 by 7.5 It is equal to 2 |
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| 2. |
Q-20 Calculate the total torque acting on the body shown in given figure about the point O.Rotational mechanics (HCV) |
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Answer» Given in the question :- We have to take Anticlockwise TORQUE = + ve clockwise torque = - ve Now, Torque = TOTAL force × perpendicular DISTANCE to the force (clockwise and anticlockwise ) Total torque = 20× 0.02 + 15 × 0.036-0.40 = 0.40+ 0.54- 0.40 N-m = 0.54 N-m (Anticlockwise direction ) Hence RESULTANT torque acting on the point is 0.54 N-m (Anticlockwise) HOPE it Helps :-) |
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| 3. |
Question number 27 plz |
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Answer» Here is your ANSWER.... |
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| 4. |
Why is parllel arrangement used in domestic wiring? |
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Answer» It provides DIFFERENT amount of CURRENT to operate |
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| 7. |
Write the conculsion on concave mirror |
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Answer» The mirror have BIG |
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| 8. |
Range for horizontal range |
| Answer» ASK MEANINGFUL SENTENCE what to FIND its not CLEAR | |
| 9. |
X=18t+5t^2 calculate instantaneous velocity at t=2 sec instantaneous acceleration at t=3 sec |
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| 10. |
Write the dimensional formula of specific gravity physical quantities |
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| 11. |
Why does spanner have a long handle |
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Answer» For creating a huge TURNING EFFECT it CONTAIN a long HANDLE. |
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| 12. |
Why the dead body is not to sink in water ? |
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Answer» Hey.... |
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| 13. |
What is plasma medium |
| Answer» PLASMA is one of the FOUR fundamental state of MATTER and was first described by chemist IRVING langmuir in the 1920S.... | |
| 14. |
which of the following substance have a tendency to move from stronger to the weaker part of an external magnetic field |
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Answer» Hope This is answer which you desire for. Final Answer : All Diamagnetic Substances like Bismuth,Zinc,Silver,Gold,lead,Water,Hydrogen Solution: 1) Diamagnetic Substances have TENDENCY to MOVE from stronger to weaker PART of magnetic field. =>Unlike,the way MAGNET attract metals like iron,it would REPEL (weakly) a diamagnetic substance. =>These Substances are faintly magnetised when placed opposite to the direction of magnetic field .' |
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| 15. |
New unit of force is 10newton New unit of energy is 100J find New unit of lenght |
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Answer» 100 = 10×S |
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| 16. |
Why sensitivity of voltmeter not expressed in mili ohms? |
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Answer» Voltmeters GIVE readings of ELECTRIC POTENTIAL, while mili ohms is a measure of resistance. |
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| 17. |
Why our head does not crush despite it carries a weight of 1000kg air? |
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Answer» HEYA ANSWER is here....... |
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| 18. |
If a man is taking load on his head so why there is no force |
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Answer» Because it can't do WORK |
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| 19. |
Why is the effect of beta particles on a photographic plate more than that of alpha particle? |
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Answer» Beta PARTICLES are more radioactive and ENERGETIC than the alpha PARTICLE and HENCE, their effect on a photographic PLATE is more than that of alpha particle. |
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| 21. |
Why does surface tension and viscosity decrease with temperature? |
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Answer» Surface tension and viscosity result due to the inmolecular attractions or more simply vander waal's forces.when temperature of a body is raised the particles of the body start gaining more kinetic energy that is they start MOVING more vigorously.since the volume of any body increases on heating therefore the intermolecular attractions become more and more less resulting in decrease of surface tension and viscosity which are due to attraction of a molecule by its neighboring MOLECULES or bottom molecules as in the case of surface tension.the SUMMARY is that more the kinetic energy of a body,more is the motion of particles and the faster the particles move the lesser is the intermolecular attractions........ |
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| 22. |
What is the earth's layer where which we live is called................. |
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| 23. |
Why we should not keep magnet near television or computer r? |
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Answer» Earlier TVs USED to have a cathode RAY tube (CTR) which are affected by MAGNETS. But lcd or led screen tvs dont have this problem. |
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| 24. |
Why black blankets are hotter than soft blankets of the same kind? |
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Answer» Black COLOUR absorbs more HEAT than any other colour and HENCE is HOOTER most of the times. |
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| 25. |
Whivh unit of concerntration does noy depend on temperature |
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Answer» MOLALITY doesn't DEPEND on TEMPERATURE |
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| 26. |
a car travels with speed v1 for the first half of the journey time during the second half of the journey time it traveled with a speed of v2 for the half of the distance and with a speed of v3 for remaining journey distance find the average speed. |
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Answer» Explanation: In classical theories of GRAVITATION, the changes in a gravitational field propagate. A CHANGE in the distribution of energy and momentum of matter RESULTS in subsequent alteration, at a DISTANCE, of the gravitational field which it PRODUCES. |
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| 27. |
Write different methods for conversion of states of matter |
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Answer» -from solid to liquid. MELTING or fusion |
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| 28. |
Why one use soap in order to remove a tight ring from finger? |
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Answer» The SOAP WATER REDUCES the friction so the ring can come out. |
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| 29. |
Symbol of Kelvin answer fast |
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Answer» HELLO here is your ANSWER by SUJEET yaduvanshi K thanks for the |
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| 30. |
Which colour of visible light has minimun velocity in glass? |
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| 31. |
a150 train is moving with a uniform velocity of45km/h the time taken by the train to cross a bridge of length 850 meters |
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| 32. |
(i) Distance =Speed X time , Speed/time ,time/Speed.(ii)The distance travelled in a unit time in a specified direction is called-(iii)Abody moving with a constant velocity will have- |
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Answer» 1)=SPEED X time 2)displacement 3)uniform velocity |
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| 33. |
World largest particle physics laboratory in switzerland |
| Answer» WORLD's BIGGEST Particle Physics LabMay Idle All Accelerators in 2012. PARIS—Particle physicists and science fans EVERYWHERE knew that the EUROPEAN particle physics laboratory, CERN, near Geneva, Switzerland, WOULD shut down the Large Hadron Collider (LHC), the world's largestatom smasher, for all of 2012 for repairs | |
| 34. |
A sound wave travels at a speed of 340 m/s. If its wavelength is 2cm, what is the frequency of the wave? Will it be in the audible range? |
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Answer» Frequency=velocity/wavelength |
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| 35. |
Please define me velocity time graph |
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Answer» The slope of a velocity graphrepresents the ACCELERATION of the OBJECT. So, the VALUE of the slope at a PARTICULAR time represents the acceleration of the object at that INSTANT. |
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| 36. |
The grandparents and parents of two-year old girl are playing with her in a room. A sound source produces a 28-kHz sound. Who in the room is most likely to hear the sound? |
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Answer» Non of them can HEAR this SOUND ... but animals like MOSQUITO DOGS and BATS can hear them |
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| 37. |
When a wave enters a new medium which property remain unchanged? |
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Answer» When a WAVE ENTERS a new MEDIUM its frequency REMAINS unchanged. |
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| 38. |
the current rating of a fuse wire is i if its length is doubled and radius s made one fourth of its value what will be its new current rating? |
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Answer» Since RESISTANCE is directly proportional to length and indirectly proportional area of CROSS section. |
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| 39. |
What would happen if there werevno standard units of measurement? |
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Answer» If there were no standard units of measurement then our lives would be miserable because measurement helps in STITCHING clothes and building houses and other OBJECTS that we use in our DAILY lives and it is NECESSARY as it is CONSIDERED by the whole world. |
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| 40. |
What will happen to a balloon that has been fully inflated and is put in a hot place? |
| Answer» IPL PLAYERS will PUT the HOT PLACE | |
| 41. |
The characteristic of the sound that describes how the brain interprets the frequency of sound is called,Pick the correct answer.A) Pitch B) loudness C) quality D) sound |
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Answer» B)Loudness I THINK this is CORRECT... |
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| 42. |
What type of lubrication regime used for friction bearings? |
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| 43. |
45 meters of copper wire cost is 3240 and what will be thw cost of 24 meters copper wire |
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Answer» 45 METERS COPPER COST 3240 1 METER copper cost 3240/45 24 meters copper cost 3240/45×24=1728 |
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| 44. |
When we increase the loudness of sound of a TV, the property of sound that changes is,Pick the correct answer.A) amplitude B) frequency C) wavelength D) speed |
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| 45. |
18. light from bulb falls on a wodden table but no photon electrons are emitted why |
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| 46. |
Hertz stands for oscillations per,Pick the correct answer.A) second B) minute C)hour D) milli second |
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Answer» The ANSWER is A) oscillations per SECOND. |
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| 47. |
When the net force acts on an object the object will be accelarated in the direction of force |
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Answer» The OBJECT will ACCELERATE in the DIRECTION of net FORCE.because the opposite force or components of force will CANCEL out. |
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| 48. |
What is the name of principle behind working of pendulum clock? |
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| 49. |
What is the most accurate measurement of glomerular filtration rate? |
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Answer» Hiiiiiiii........ |
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