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. |
The chemical formula for water is |
| A. | NaCl |
| B. | Cl |
| C. | O2 |
| D. | H2O |
| Answer» E. | |
| 2. |
A molecule of pure water contains one atom of oxygen and two atoms of |
| A. | nitrogen atom |
| B. | carbon atom |
| C. | hydrogen atoms |
| D. | neon atom |
| Answer» D. neon atom | |
| 3. |
In second stage, the petroleum gas is passed to a condensing column, in which it becomes cooler as the height |
| A. | decrease |
| B. | constant |
| C. | increases |
| D. | none of them |
| Answer» D. none of them | |
| 4. |
Gold, silver, copper and carbon are examples of |
| A. | element |
| B. | electron |
| C. | neutron |
| D. | carbon |
| Answer» B. electron | |
| 5. |
The most common classifications of elements in the periodic table are, metal and |
| A. | non-elastic |
| B. | non-metal |
| C. | solid |
| D. | liquid |
| Answer» C. solid | |
| 6. |
Compounds always contain the same ratio of |
| A. | mixture |
| B. | atom |
| C. | compound |
| D. | molecule |
| Answer» C. compound | |
| 7. |
In filtration the liquid (and anything dissolved in the liquid) passes through holes in the filter paper but the solid particles are too big and |
| A. | get stuck |
| B. | go through |
| C. | torn off |
| D. | dissolve |
| Answer» B. go through | |
| 8. |
Hydrogen atoms do not have |
| A. | electron |
| B. | neutron |
| C. | carbon |
| D. | atom |
| Answer» C. carbon | |
| 9. |
The third naturally occurring allotrope of carbon is |
| A. | Copper |
| B. | stone |
| C. | diamond |
| D. | pearl |
| Answer» D. pearl | |
| 10. |
A substance formed when two or more elements are mixed together without chemical reaction is known as |
| A. | molecule |
| B. | mixture |
| C. | atom |
| D. | compound |
| Answer» C. atom | |
| 11. |
The most common type of sugar is |
| A. | fructose |
| B. | sucrose |
| C. | gluten |
| D. | glucose |
| Answer» E. | |
| 12. |
In steel and iron industries, the gas used for cutting, welding and melting of metal is |
| A. | oxygen |
| B. | nitrogen |
| C. | helium |
| D. | hydrogen |
| Answer» B. nitrogen | |
| 13. |
The elements that does not conduct heat and electricity very well are known as |
| A. | solid |
| B. | metal |
| C. | non-elastic |
| D. | non-metal |
| Answer» E. | |
| 14. |
The non-metals exist in two of the three states of matter i.e. gas and solid, at |
| A. | room temperature |
| B. | freezing point |
| C. | sunshine |
| D. | oven |
| Answer» B. freezing point | |
| 15. |
An element can exist as either atoms or |
| A. | molecule |
| B. | atom |
| C. | compound |
| D. | solution |
| Answer» B. atom | |
| 16. |
Two atoms of hydrogen, one atom of sulfur and four atoms of oxygen make up an acid. The name of the acid is |
| A. | sulphuric acid |
| B. | lactic acid |
| C. | acidic acid |
| D. | boric acid |
| Answer» B. lactic acid | |
| 17. |
Some people used instead of mirror a fine polished metal called |
| A. | bronze |
| B. | iron |
| C. | silver |
| D. | aluminum |
| Answer» B. iron | |
| 18. |
Shadows are formed because of light as it travels in |
| A. | curves |
| B. | straight line |
| C. | L shape |
| D. | S shape |
| Answer» C. L shape | |
| 19. |
Light of a torch on one side cannot be seen through a water hose in |
| A. | straight |
| B. | S-shape |
| C. | both a and b |
| D. | I-shape |
| Answer» C. both a and b | |
| 20. |
An area of darkness which is formed when the light is completely or partially blocked is called a |
| A. | shadow |
| B. | blockage |
| C. | reflection |
| D. | refraction |
| Answer» B. blockage | |
| 21. |
There are sources of light which run on electricity they include |
| A. | traffic light |
| B. | sunlight |
| C. | fire |
| D. | lightning |
| Answer» B. sunlight | |
| 22. |
The direction of rays of light falling are indicated by |
| A. | straight line |
| B. | curve |
| C. | scattered |
| D. | round |
| Answer» B. curve | |
| 23. |
A clear plastic allow light to pass through it so it is |
| A. | transparent materials |
| B. | translucent material |
| C. | opaque materials |
| D. | abstract materials |
| Answer» B. translucent material | |
| 24. |
In morning the sun is low in eastern horizon hence shadow formed is |
| A. | longer |
| B. | shorter |
| C. | same |
| D. | equal |
| Answer» B. shorter | |
| 25. |
The light from moon is |
| A. | its own |
| B. | reflection of sun |
| C. | its own rays |
| D. | reflection of earth |
| Answer» C. its own rays | |
| 26. |
Shiny surfaces reflect light more better as compare to |
| A. | rough surfaces |
| B. | polished metals |
| C. | mirror |
| D. | bronze |
| Answer» B. polished metals | |
| 27. |
Energy can be saved by turning off switch after |
| A. | leaving a room |
| B. | entering a room |
| C. | sitting in room |
| D. | reading a book |
| Answer» B. entering a room | |
| 28. |
The position of light source can interrupt the shadow's |
| A. | length |
| B. | position |
| C. | both a and b |
| D. | darkness |
| Answer» D. darkness | |
| 29. |
The size of brain cell is |
| A. | 0.007 mm |
| B. | 0.006 mm |
| C. | 0.005mm |
| D. | 0.004mm |
| Answer» D. 0.004mm | |
| 30. |
A component that connects the base with eyepiece lens and turret is known as |
| A. | stage |
| B. | turret |
| C. | arm |
| D. | diaphragm |
| Answer» D. diaphragm | |
| 31. |
The function of the palisade mesophyll layer is to |
| A. | reproduction |
| B. | absorption of light |
| C. | hold the plant |
| D. | fertilization |
| Answer» C. hold the plant | |
| 32. |
Iris should be adjusted until the light is properly focused over the |
| A. | fine focus |
| B. | nosepiece |
| C. | eyepiece |
| D. | turret |
| Answer» D. turret | |
| 33. |
The lens of the microscope is known as |
| A. | eyepiece |
| B. | iris |
| C. | coarse focus |
| D. | condenser lens |
| Answer» B. iris | |
| 34. |
Carnivorous plants includes |
| A. | rose |
| B. | jasmine |
| C. | pitcher plant |
| D. | tobacco plant |
| Answer» D. tobacco plant | |
| 35. |
The capability of chlorophyll is to trap |
| A. | oxygen |
| B. | sunlight |
| C. | water |
| D. | nutrients |
| Answer» C. water | |
| 36. |
Enter and exit of water in plants takes place through |
| A. | flower |
| B. | fruit |
| C. | seed |
| D. | stomata |
| Answer» E. | |
| 37. |
Plants which can grow without roots are the |
| A. | hydroponics |
| B. | aeroponics |
| C. | both a and b |
| D. | none |
| Answer» D. none | |
| 38. |
Term 'synthesis' means |
| A. | making |
| B. | combining simpler parts to make complex parts |
| C. | reducing |
| D. | releasing |
| Answer» C. reducing | |
| 39. |
The ability of combination of dual vision of eyes is known as |
| A. | dim vision |
| B. | concave vision |
| C. | binocular vision |
| D. | bright vision |
| Answer» D. bright vision | |
| 40. |
The thing that shuts automatically to protect the eyes is known as |
| A. | eyelash |
| B. | eyelid |
| C. | iris |
| D. | cornea |
| Answer» C. iris | |
| 41. |
The region of retina where no image is formed and it contains no rods or cones is known as |
| A. | choroid |
| B. | blind spot |
| C. | yellow spot |
| D. | cornea |
| Answer» C. yellow spot | |
| 42. |
The part of the eye that is a messenger of electro-chemical signals from eye to the brain is |
| A. | blood vessel |
| B. | optic nerve |
| C. | iris |
| D. | cornea |
| Answer» C. iris | |
| 43. |
Long sightedness is a refractive error that is caused by |
| A. | The eyeball is shorter than normal |
| B. | The lens is thinner than normal |
| C. | any of them |
| D. | The cornea is less curved than normal |
| Answer» D. The cornea is less curved than normal | |
| 44. |
The smallest division which is found in a measuring tape is |
| A. | 1mm |
| B. | 10mm |
| C. | 5mm |
| D. | 0mm |
| Answer» B. 10mm | |
| 45. |
Kilo means in SI is one |
| A. | thousand |
| B. | hundred |
| C. | ten |
| D. | million |
| Answer» B. hundred | |
| 46. |
10,000 m/sec is the speed of a |
| A. | aero plane |
| B. | rocket |
| C. | satellite signal |
| D. | car |
| Answer» D. car | |
| 47. |
The amount of 1 liter contains |
| A. | 100ml |
| B. | 1000ml |
| C. | 10mm |
| D. | 10kg |
| Answer» C. 10mm | |
| 48. |
The sum of amount of matter in a substance is called its |
| A. | mass |
| B. | weight |
| C. | length |
| D. | volume |
| Answer» B. weight | |
| 49. |
The components of a mixture can be separated once they have been |
| A. | formed |
| B. | combined |
| C. | develop |
| D. | reacted |
| Answer» C. develop | |
| 50. |
Most countries make use of _________ for making coins |
| A. | Copper |
| B. | aluminum |
| C. | steel |
| D. | iron |
| Answer» B. aluminum | |