MCQOPTIONS
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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. |
To cause troops etc to spend out in readiness for battle: |
| A. | Align |
| B. | Collocate |
| C. | .Deploy |
| D. | Disperse |
| Answer» D. Disperse | |
| 2. |
The custom of having many wifes |
| A. | Monogamy |
| B. | Bigamy |
| C. | Polygamy |
| D. | Matrimony |
| Answer» D. Matrimony | |
| 3. |
Fission of one U-235 nucleus releases 3.2X10-11 J of energy. How much energy is released by 1 mole of Uranaium-235? |
| A. | 16X1011 J |
| B. | 19.24X1012 J |
| C. | 6X106 J |
| D. | None of these |
| Answer» C. 6X106 J | |
| 4. |
When a Uranium-235 undergoes fission,what all is formed? |
| A. | Barium nucleus |
| B. | krypton nucleus |
| C. | Neutrons |
| D. | All the above |
| Answer» E. | |
| 5. |
which of these is used as moderator in Nucleur reactor? |
| A. | Boron |
| B. | D2O |
| C. | H2O |
| D. | Cadmium |
| Answer» C. H2O | |
| 6. |
which of these are incorrect? |
| A. | A small nucleus is stable as the distance between the nucleus particle(neutron + proton) are small due to which nuclear force are large compared to electrostatic force of repulsion |
| B. | In large nucleus,electrostatic forces are higher then nuclear forces |
| C. | Chemical reaction involve only the outermost electrons while nuclear reaction ,nucleus undergoes the change |
| D. | none of these |
| Answer» E. | |
| 7. |
Which of these are not fissile material? |
| A. | Uranium-235 |
| B. | plutonium -239 |
| C. | Uranium-238 |
| D. | None of these |
| Answer» D. None of these | |
| 8. |
Which of these are correct? |
| A. | When a radioactive substance emit alpha particle,its atomic mass and atomic number decrease by 4 and 2 respectively |
| B. | When a radioactive substance emit beta particle,its atomic mass decrease by 1 |
| C. | In beta decay,a proton changes into electron and neutron |
| D. | None of the above |
| Answer» B. When a radioactive substance emit beta particle,its atomic mass decrease by 1 | |
| 9. |
Statement A: LPG mainly contain butane. Statement B: CNG mainly contains methane. |
| A. | A is correct only |
| B. | B is correct only |
| C. | A and B both are correct |
| D. | A and B both are incorrect |
| Answer» D. A and B both are incorrect | |
| 10. |
What is true for 92235X? |
| A. | X contains 92 protons |
| B. | X contains 143 neutrons |
| C. | the atomic no is 92 |
| D. | All the above |
| Answer» E. | |
| 11. |
What is true of coal? |
| A. | it is present in infinite quantity is earth |
| B. | it a complex mixture of compounds of carbon,hydrogen and oxygen |
| C. | peat coal has the highest percentage of carbon |
| D. | anthracite has the lowest percentage of carbon |
| Answer» C. peat coal has the highest percentage of carbon | |
| 12. |
A small enclosure for cattle, sheep, poultry etc, |
| A. | Cellar |
| B. | Pen |
| C. | Sty |
| D. | Lair |
| Answer» D. Lair | |
| 13. |
which of these is not fossil fuel? |
| A. | Coal |
| B. | petroleum |
| C. | Natural gas |
| D. | wood |
| Answer» E. | |
| 14. |
which gas is not present in Biogas? |
| A. | Methane |
| B. | Carbon dioxide |
| C. | Hydrogen solphine |
| D. | Nitrogen |
| Answer» E. | |
| 15. |
What is true about hydroelectric power plants? |
| A. | water is converted into steam and the it is used to rotate turbine |
| B. | it uses fossils fuels to generate electrictyu003e |
| C. | The potential energy of the water is converted into kinetic energy of water and which is then used to rotate turbin to generate electricty |
| D. | None of these |
| Answer» D. None of these | |
| 16. |
The power generated in a windmill_____ |
| A. | Depends on the height of the tower. |
| B. | Depends on wind velocity |
| C. | Can be increased by planting tall trees close to the tower |
| D. | none of these |
| Answer» C. Can be increased by planting tall trees close to the tower | |
| 17. |
what are the drawback of solar energy heating devices? |
| A. | It can not be used in night |
| B. | it can not be used if the sky is covered with clouds |
| C. | the direction has to be changed after short interval in order to have devics always facing sun |
| D. | All the above |
| Answer» E. | |
| 18. |
Which of these is true for solar energy? |
| A. | The energy obtained from sun is called solar energy |
| B. | Ultra voilet rays are completely absorbed and eliminated by the atomosphere |
| C. | it is a renewable source of energy |
| D. | All the above |
| Answer» E. | |
| 19. |
Fuel used in thermal power plants is? |
| A. | Fossil fuel |
| B. | biomass |
| C. | water |
| D. | Uranaium |
| Answer» B. biomass | |
| 20. |
One who forcibly seizes control of a bus or an aircraft. |
| A. | Pirate |
| B. | Hijacker |
| C. | Swindler |
| D. | Pilferer |
| Answer» C. Swindler | |
| 21. |
What is true of electric generator? |
| A. | it works on the principle of electromagnetic induction |
| B. | converts mechanical energy into electrical energy |
| C. | it can be used to produced both direct and alternaing current |
| D. | all the above |
| Answer» E. | |
| 22. |
A copper wire can not used as fuse wire why? |
| A. | it has high melting point |
| B. | it offers low resistance |
| C. | it is a good conductor of electricity |
| D. | None of these |
| Answer» B. it offers low resistance | |
| 23. |
Statement A: Fleming left hand rule is used to determine the force on a current carrying conductor in magnetic field Statement B: Fleming right hand rule is used to determine the induced current for moving conductor in magnetic field |
| A. | A is correct only |
| B. | B is correct only |
| C. | A and B both are correct |
| D. | A and B both are incorrect |
| Answer» D. A and B both are incorrect | |
| 24. |
which of these will not experience force in magnetic field? |
| A. | Moving charge |
| B. | Bar magnet |
| C. | stationary charge |
| D. | current carrying conductor |
| Answer» D. current carrying conductor | |
| 25. |
All the electrical appliances liks fans and socket are connected in parallel across the live and neutral wire in the household circuit? |
| A. | True |
| B. | false |
| C. | another |
| D. | none |
| Answer» B. false | |
| 26. |
The magnitude and direction of magnetic field produced by a straight current carrying wire at a given point depends on? |
| A. | Current in the wire |
| B. | Direction of the current |
| C. | Distance of the point from the wire |
| D. | All the above |
| Answer» E. | |
| 27. |
what is true about earth magnetism? |
| A. | Earth is a huge electromagnet |
| B. | Angle of dip at poles is 00u003c.supu003e |
| C. | The angle betweem magnetic meridain and geograhic meridian at a place is called angle of dip |
| D. | None of these |
| Answer» B. Angle of dip at poles is 00u003c.supu003e | |
| 28. |
which of these is untrue about magnetic lines of force? |
| A. | A stronger magnetic field indicates magnetic lines of forces are closer |
| B. | magnetic lines of forces originate from the north pole of a magnet and end at its south poel |
| C. | The magnetic lines of forces do not intersect one another |
| D. | none of these |
| Answer» E. | |
| 29. |
which of these is true for electrical motor? |
| A. | Converts electrical energy into mechanical energy |
| B. | it works on principle of electromagnetic induction |
| C. | converts mechanical energy into electrical energy |
| D. | None of these |
| Answer» B. it works on principle of electromagnetic induction | |
| 30. |
Force on a current conductor in a magnetic field depends on ? |
| A. | Length of the conductor |
| B. | Current in the conductor |
| C. | Magnetic Field |
| D. | All the above |
| Answer» E. | |
| 31. |
Why will a sheet of paper fall slower than one that is crumpled into a ball? |
| A. | The sheet of paper expeirence more air resistance then crumpled one |
| B. | The crumpled one will have more gravitional force then sheet of paper |
| C. | another |
| D. | None of these |
| Answer» B. The crumpled one will have more gravitional force then sheet of paper | |
| 32. |
A ball is thrown vertically upwards with a velocity of 49 m/s.g=9.8 m/s2 11. Calculate the max height it rises up to? |
| A. | 112.5m |
| B. | 245m |
| C. | 122.5m |
| D. | none of thes |
| Answer» D. none of thes | |
| 33. |
There are two statements: A: The weight of the body is not constant and it changes with acceleration due to gravity. B :The mass of the objects can never be zerp. Which one of the following is correct? |
| A. | A only |
| B. | B only |
| C. | Both A and B are correct |
| D. | Both A and B are wrong |
| Answer» D. Both A and B are wrong | |
| 34. |
Two bodies fall from the same height on the surface of the earth. Which body will strike the surface first? |
| A. | Heavier body |
| B. | lighter body |
| C. | Both will reach same at the same time |
| D. | none of these |
| Answer» D. none of these | |
| 35. |
Murder of king or queen is called |
| A. | Matricide |
| B. | Parricide |
| C. | Regicide |
| D. | Uxoricide |
| Answer» D. Uxoricide | |
| 36. |
What is true of g? |
| A. | it is vector quantity and has unit m/s2 |
| B. | it is scalar quantity and has unit m/s2 |
| C. | it is vector quantity and has unit m/s |
| D. | it is scalar quantity and has unit m/s |
| Answer» B. it is scalar quantity and has unit m/s2 | |
| 37. |
The value of g at three places A,B,C which are above the surface of the earth are in the following order A u003e B u003e C what can be said about the distance of these places from the surface of the earth? |
| A. | A u003e B u003e C |
| B. | A=B=C |
| C. | Cu003e Bu003e A |
| D. | None of the above |
| Answer» D. None of the above | |
| 38. |
Murder of one's children is called |
| A. | Foeticide |
| B. | . Fillicide |
| C. | Fratricide |
| D. | Homicide |
| Answer» C. Fratricide | |
| 39. |
Fear of medicine : |
| A. | Phasmophobia |
| B. | Pharamacophobia |
| C. | Xenophobia |
| D. | Pyrophobia |
| Answer» C. Xenophobia | |
| 40. |
Fear of number thirteen : |
| A. | Hodophobia |
| B. | Geraphobia |
| C. | Triskaidekaphobia |
| D. | Theomania |
| Answer» D. Theomania | |
| 41. |
Fear of old memories : |
| A. | Maieusiophobia |
| B. | Metrophobia |
| C. | Monophobia |
| D. | Menemophobia |
| Answer» E. | |
| 42. |
Fear of old age : |
| A. | Genophobia |
| B. | Geraphobia |
| C. | Gamophobia |
| D. | Ergophobia |
| Answer» C. Gamophobia | |
| 43. |
What will be Gravitational Force between the two objects if distance is increased two times and both the masses are doubled? |
| A. | F/4 |
| B. | 2F |
| C. | F/2 |
| D. | F |
| Answer» E. | |
| 44. |
Fear of heights : |
| A. | Acrophobia |
| B. | Aerophobia |
| C. | Aglophobia |
| D. | Altiphobia |
| Answer» B. Aerophobia | |
| 45. |
Value of G in the formula of Gravitational force ..... |
| A. | depends on radius of earth |
| B. | depends on radius of earth and mass of the earth |
| C. | depends neither on radius of earth and mass of the earth |
| D. | depends on mass of earth |
| Answer» D. depends on mass of earth | |
| 46. |
What will be Gravitational Force between the two objects if distance is increased two times? ? |
| A. | F/4 |
| B. | 2F |
| C. | F/2 |
| D. | 4F |
| Answer» B. 2F | |
| 47. |
A wire whose length L and area of crossection A has R resistance. If the length of a wire is doubled, and its cross section is also doubled, then what will be its resistance? ? |
| A. | R |
| B. | 2R |
| C. | R/2 |
| D. | 4R |
| Answer» B. 2R | |
| 48. |
How many joules are there in one kilowatt-hour? |
| A. | 3.6X106 J |
| B. | 1.6X106 J |
| C. | 3.6X104 J |
| D. | None of these |
| Answer» B. 1.6X106 J | |
| 49. |
What is the power of an electric lamp, if it draws 20 A current when connected to 220 V line? ? |
| A. | 110Watt |
| B. | 240watt |
| C. | 4400Watt |
| D. | none of thes |
| Answer» D. none of thes | |
| 50. |
There are two statements, A: Formula for Power is P=VI .B: Formula for Power is P=I2R. Which one of the following is correct? |
| A. | A only |
| B. | B only |
| C. | Both A and B are correct |
| D. | Both A and B are wrong |
| Answer» D. Both A and B are wrong | |