MCQOPTIONS
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MCQOPTIONS
This section includes 1334 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
kilohertz is a unit which measures |
| A. | power used by a current of one ampere |
| B. | electromagnetic radio wave frequencies |
| C. | voltage |
| D. | electric resistance |
| Answer» C. voltage | |
| 2. |
Atoms are composed of |
| A. | electrons and protons |
| B. | electrons only |
| C. | protons only |
| D. | electrons and nuclei |
| Answer» E. | |
| 3. |
The hardest substance available on earth is |
| A. | Gold |
| B. | Iron |
| C. | Diamond |
| D. | Platinum |
| Answer» D. Platinum | |
| 4. |
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products? |
| A. | Television |
| B. | Refrigerator |
| C. | Tube light |
| D. | Cooking gas |
| Answer» C. Tube light | |
| 5. |
The major ingredient of leather is: |
| A. | ollagen |
| B. | arbohydrate |
| C. | olymer |
| D. | ucleic acid |
| Answer» B. arbohydrate | |
| 6. |
Optical fibers are mainly used for which of the following? |
| A. | usical instruments |
| B. | ood industry |
| C. | eaving |
| D. | ommunication |
| Answer» E. | |
| 7. |
Rayon is chemically a |
| A. | ellulose |
| B. | ectin |
| C. | lucose |
| D. | mylase |
| Answer» B. ectin | |
| 8. |
Epoxy resins are used as: |
| A. | etergents |
| B. | nsecticides |
| C. | dhesives |
| D. | oth repellents |
| Answer» D. oth repellents | |
| 9. |
Which of the following is commonly called a 'poly-amide'? |
| A. | erylene |
| B. | ylon |
| C. | ayon |
| D. | rlon |
| Answer» C. ayon | |
| 10. |
According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called: |
| A. | molecule |
| B. | cation |
| C. | n anion |
| D. | n atom |
| Answer» B. cation | |
| 11. |
'No two electrons in an atom can have the same set of four quantum numbers' is stated in |
| A. | ewton's law |
| B. | ohr's law |
| C. | ufbau principle |
| D. | auli's exclusion principle |
| Answer» E. | |
| 12. |
In an atomic nucleus, neutrons and protons are held together by: |
| A. | ravitational forces |
| B. | xchange forces |
| C. | oulombic forces |
| D. | agnetic forces |
| Answer» C. oulombic forces | |
| 13. |
Which of the following rays are the most penetrating? |
| A. | eta rays |
| B. | lpha rays |
| C. | amma rays |
| D. | -rays |
| Answer» D. -rays | |
| 14. |
Nuclear fission is caused by the impact of: |
| A. | eutron |
| B. | roton |
| C. | euteron |
| D. | lectron |
| Answer» B. roton | |
| 15. |
Isotopes are separated by: |
| A. | rystallisation |
| B. | ublimation |
| C. | istillation |
| D. | iltration |
| Answer» D. iltration | |
| 16. |
Atoms are composed of: |
| A. | lectrons and protons |
| B. | lectrons only |
| C. | rotons only |
| D. | lectrons and Nuclei |
| Answer» E. | |
| 17. |
A chronometer measures: |
| A. | olour contrast |
| B. | ound waves |
| C. | ime |
| D. | ater waves |
| Answer» D. ater waves | |
| 18. |
Electric current is measured by: |
| A. | ommutator |
| B. | nemometer |
| C. | mmeter |
| D. | oltmeter |
| Answer» D. oltmeter | |
| 19. |
Kilowatt is a unit to measure: |
| A. | ork |
| B. | ower |
| C. | lectricity |
| D. | urrent |
| Answer» C. lectricity | |
| 20. |
Decibel is the unit used for: |
| A. | peed of light |
| B. | ntensity of heat |
| C. | ntensity of sound |
| D. | adio wave frequency |
| Answer» D. adio wave frequency | |
| 21. |
Newton is the unit of: |
| A. | orce |
| B. | omentum |
| C. | cceleration due to gravity |
| D. | elocity |
| Answer» B. omentum | |
| 22. |
The percentage of oxygen present in air is approximately- |
| A. | 4% |
| B. | 3% |
| C. | 0% |
| D. | 1% |
| Answer» E. | |
| 23. |
What are metal bearing rocks called? |
| A. | itumen |
| B. | auxite |
| C. | etalloids |
| D. | res |
| Answer» E. | |
| 24. |
Which is the absolute temperature scale? |
| A. | elsius |
| B. | ahrenheit |
| C. | elvin |
| D. | ll of these |
| Answer» D. ll of these | |
| 25. |
Which layer protects earth from harmful rays of the Sun? |
| A. | onosphere |
| B. | zone layer |
| C. | roposphere |
| D. | agnetosphere |
| Answer» C. roposphere | |
| 26. |
Which of the following schemes is launched for the school going children: |
| A. | ok Jumbish |
| B. | id day meal |
| C. | arva Shiksha Abhiyan |
| D. | yush |
| Answer» C. arva Shiksha Abhiyan | |
| 27. |
BACK TO VILLAGES slogan was given by: |
| A. | enin |
| B. | ao |
| C. | ehru |
| D. | atel |
| Answer» C. ehru | |
| 28. |
What cause a moving body to resist a change in its state of motion? |
| A. | isplacement |
| B. | cceleration |
| C. | nertia |
| D. | elocity |
| Answer» D. elocity | |
| 29. |
Glass is made of the mixture of: |
| A. | uartz and mica |
| B. | and and silicates |
| C. | alt and quartz |
| D. | and and salt |
| Answer» C. alt and quartz | |
| 30. |
One kilometer is equal to how many miles? |
| A. | 0.84 |
| B. | 0.5 |
| C. | 0.6 |
| D. | 0.62 |
| Answer» E. | |
| 31. |
Very small time intervals are accurately measured by |
| A. | hite dwarfs |
| B. | uartz clocks |
| C. | tomic clocks |
| D. | ulsars |
| Answer» D. ulsars | |
| 32. |
The two elements that are frequently used for making transistors are: |
| A. | oron and Aluminium |
| B. | ilicon and Germanium |
| C. | ridium and Tungsten |
| D. | iobium and Columbium |
| Answer» C. ridium and Tungsten | |
| 33. |
Permanent hardness of water may be removed by the addition of: |
| A. | odium Carbonate |
| B. | lum |
| C. | otassium Permanganate |
| D. | ime |
| Answer» B. lum | |
| 34. |
Carbon, diamond and graphite are together called: |
| A. | llotrope |
| B. | somers |
| C. | somorphs |
| D. | sotopes |
| Answer» B. somers | |
| 35. |
Sodium metal is kept under: |
| A. | etrol |
| B. | lcohol |
| C. | ater |
| D. | erosene |
| Answer» E. | |
| 36. |
Most soluble in water is: |
| A. | amphor |
| B. | ulphur |
| C. | ommon salt |
| D. | ugar |
| Answer» E. | |
| 37. |
Among the various allotrope of carbon |
| A. | okeis the hardest, graphite is the softest |
| B. | iamond is the hardest, coke is the softest |
| C. | iamond is the hardest, graphite is the softest |
| D. | iamond is the hardest, lamp black is the softest |
| Answer» D. iamond is the hardest, lamp black is the softest | |
| 38. |
The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of: |
| A. | romine |
| B. | luorine |
| C. | hlorine |
| D. | ulphur |
| Answer» E. | |
| 39. |
Heavy water is: |
| A. | euterium oxide |
| B. | H7 |
| C. | ain water |
| D. | ritium oxide |
| Answer» B. H7 | |
| 40. |
The variety of coal in which the deposit contains recognizable traces of the original plant material is |
| A. | itumen |
| B. | nthracite |
| C. | ignite |
| D. | eat |
| Answer» E. | |
| 41. |
Water is a good solvent of ionic salts because: |
| A. | t has a high specific heat |
| B. | t has no colour |
| C. | t has a high dipole moment |
| D. | t has a high boiling point |
| Answer» D. t has a high boiling point | |
| 42. |
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned inIndia, is used in which of the following domestic products? |
| A. | elevision |
| B. | efrigerator |
| C. | ube light |
| D. | ooking gas |
| Answer» C. ube light | |
| 43. |
Permanent hardness of water can be removed by adding: |
| A. | hlorine |
| B. | ashing Soda |
| C. | otassium Permanganate |
| D. | leaching Powder |
| Answer» C. otassium Permanganate | |
| 44. |
Electric bulb filament is made of |
| A. | opper |
| B. | luminum |
| C. | ead |
| D. | ungsten |
| Answer» E. | |
| 45. |
The tree which sends down roots from its branches to the soil is known as: |
| A. | ak |
| B. | ine |
| C. | anyan |
| D. | alm |
| Answer» D. alm | |
| 46. |
Q: Who has the maximum field of vision? |
| A. | plane mirror |
| B. | convex mirror |
| C. | concave mirror |
| D. | All of them |
| Answer» C. concave mirror | |
| 47. |
Q: Who is called the father of modern chemistry? |
| A. | Dalton |
| B. | Lavoisier |
| C. | Mendeleev |
| D. | None of these |
| Answer» C. Mendeleev | |
| 48. |
Q: Who is considered as the ultimate source of all forms of energy? |
| A. | Coal |
| B. | Atom |
| C. | Water |
| D. | Sun |
| Answer» E. | |
| 49. |
Q: Whose unit is Farad? |
| A. | Conductivity |
| B. | resistance |
| C. | Motivation |
| D. | Capacity |
| Answer» E. | |
| 50. |
Q: Why are white dresses worn in summer? |
| A. | Bad absorbers of heat are |
| B. | are cheap |
| C. | are attractive |
| D. | None of these |
| Answer» B. are cheap | |