MCQOPTIONS
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MCQOPTIONS
This section includes 6820 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 2751. |
Iron pipes from which water is supplied are coated with zinc (Zn) to prevent rusting. |
| A. | Annealing |
| B. | vulcanization |
| C. | Yashad coating |
| D. | none of these |
| Answer» D. none of these | |
| 2752. |
Can a solute be separated from a solution? |
| A. | Filtration |
| B. | Evaporation |
| C. | Decantation |
| D. | Sedimentation |
| Answer» C. Decantation | |
| 2753. |
Which acid is used as a dehydrating agent? |
| A. | hydrochloric acid |
| B. | sulfuric acid |
| C. | acetic acid |
| D. | nitric acid |
| Answer» C. acetic acid | |
| 2754. |
What is the function of dynamo? |
| A. | converting electrical energy into mechanical energy |
| B. | converting mechanical energy into electrical energy |
| C. | convert electrical energy into heat |
| D. | none of these |
| Answer» C. convert electrical energy into heat | |
| 2755. |
What is the maximum speed of sound? |
| A. | in the air |
| B. | in water |
| C. | in a vacuum |
| D. | in steel |
| Answer» C. in a vacuum | |
| 2756. |
What is the density of a metal when it is heated? |
| A. | grows |
| B. | no difference |
| C. | becomes less |
| D. | none of the above |
| Answer» D. none of the above | |
| 2757. |
Nichrome metal element is used in electric heaters because? |
| A. | it has higher resistivity |
| B. | it has a higher melting point |
| C. | More powerful electric current can be passed through it |
| D. | for all the above reasons |
| Answer» E. | |
| 2758. |
Which instrument measures the purity of milk? |
| A. | manometer |
| B. | hydrometer |
| C. | lactometer |
| D. | Fadometer |
| Answer» D. Fadometer | |
| 2759. |
How does a red rose look in green light? |
| A. | Yellow |
| B. | rose |
| C. | Black |
| D. | Red |
| Answer» D. Red | |
| 2760. |
Which of the following physical properties is not affected by quantity? |
| A. | volume |
| B. | mass |
| C. | burden |
| D. | density |
| Answer» E. | |
| 2761. |
When sunlight passes through a prism, which of the following colors has the highest refraction? |
| A. | Blue |
| B. | Red |
| C. | Orange |
| D. | Green |
| Answer» B. Red | |
| 2762. |
When a person enters a room darkened by light, he cannot see anything for some time. |
| A. | the iris of his eye shrinks |
| B. | the iris of his eye dilates |
| C. | The distance between the lens of his eye and the retina increases |
| D. | the length of the lens of his eye increases |
| Answer» B. the iris of his eye dilates | |
| 2763. |
Which metal has the highest melting point? |
| A. | Osmium |
| B. | tungsten |
| C. | molybdinum |
| D. | aluminum |
| Answer» C. molybdinum | |
| 2764. |
Images are formed between two parallel mirrors. |
| A. | Two |
| B. | four |
| C. | Eight |
| D. | eternal |
| Answer» E. | |
| 2765. |
mac number is related |
| A. | at the speed of sound |
| B. | at the speed of the ship |
| C. | at the speed of an airplane |
| D. | at the speed of the spacecraft |
| Answer» D. at the speed of the spacecraft | |
| 2766. |
What is the reason that the ball bounces more at a higher place? |
| A. | Because the air pressure is higher in the high places than in the plains |
| B. | Because the atmosphere is sparse at high altitudes, the ball has to face less resistance. |
| C. | Because at higher places the force of gravity is less |
| D. | Because the atmosphere is purer at higher altitudes |
| Answer» D. Because the atmosphere is purer at higher altitudes | |
| 2767. |
What is Robot? |
| A. | kind of rocket |
| B. | A bomb |
| C. | resembling a human machine |
| D. | an animal found in the jungles of africa |
| Answer» D. an animal found in the jungles of africa | |
| 2768. |
Who is most vulnerable to malnutrition? |
| A. | Vitamin 'A' |
| B. | Carbohydrate |
| C. | vitamin C' |
| D. | protein |
| Answer» E. | |
| 2769. |
What happens when a ship enters the sea from a river? |
| A. | rises up |
| B. | sinks down |
| C. | there is no change in his level |
| D. | all of the above |
| Answer» B. sinks down | |
| 2770. |
A moving body on earth comes to rest because of the following reasons? |
| A. | due to inertial law |
| B. | due to frictional force |
| C. | due to momentum conservation |
| D. | due to gravitational force |
| Answer» C. due to momentum conservation | |
| 2771. |
What is the main cause of rusting of iron? |
| A. | oxygen |
| B. | hydrogen |
| C. | nitrogen |
| D. | neon |
| Answer» B. hydrogen | |
| 2772. |
Which gas is used to purify pond water in cities? |
| A. | sulphur dioxide |
| B. | chlorine |
| C. | nitrogen |
| D. | ammonia |
| Answer» C. nitrogen | |
| 2773. |
A rolling ball stops itself after rolling some distance, due to which of the following reasons? |
| A. | Frictional force |
| B. | gravity |
| C. | inertia |
| D. | none of the above |
| Answer» B. gravity | |
| 2774. |
The focal length in the lens of the eye is corrected by |
| A. | by retina |
| B. | By Iris |
| C. | by ciliary muscles |
| D. | by cornea |
| Answer» D. by cornea | |
| 2775. |
What is the main component of 'Bio gas'? |
| A. | ethane |
| B. | ammonia |
| C. | methane |
| D. | ethylene |
| Answer» D. ethylene | |
| 2776. |
What is the form of Marble? |
| A. | Shell |
| B. | Neiss |
| C. | Lime Stone |
| D. | Sand Stone |
| Answer» D. Sand Stone | |
| 2777. |
When we go upwards in the atmosphere? |
| A. | temperature decreases and pressure increases |
| B. | temperature rises and pressure decreases |
| C. | both temperature and pressure increase |
| D. | both temperature and pressure decrease |
| Answer» E. | |
| 2778. |
Is dry ice a solid? |
| A. | carbon monoxide |
| B. | Carbon dioxide |
| C. | sulphur dioxide |
| D. | hydrogen peroxide |
| Answer» C. sulphur dioxide | |
| 2779. |
What is the scientific name of common salt? |
| A. | Sodium sulphate |
| B. | Sodium chloride |
| C. | sodium bicarbonate |
| D. | ammonium chloride |
| Answer» C. sodium bicarbonate | |
| 2780. |
AIDS is caused by Human Immunodeficiency Virus (HIV), which is? |
| A. | retro virus |
| B. | immune virus |
| C. | arbo virus |
| D. | lente virus |
| Answer» B. immune virus | |
| 2781. |
What is the name of the Cattle Disease Surveillance and Forecasting System of India? |
| A. | Cattle Monitoring Laboratory |
| B. | Cattle Safety Laboratory |
| C. | Animal Safety Laboratory |
| D. | Biosafety Laboratory |
| Answer» E. | |
| 2782. |
What is silk made from? |
| A. | from silkworm eggs |
| B. | silkworm pupa |
| C. | from silkworm larvae |
| D. | from worms themselves |
| Answer» E. | |
| 2783. |
What do silkworms live on? |
| A. | basil leaves |
| B. | Mulberry (Mulberry) |
| C. | rose leaves |
| D. | curry leaves |
| Answer» C. rose leaves | |
| 2784. |
What is the most dangerous disease of chickens? |
| A. | chicken pox |
| B. | Ranikhet |
| C. | poolorum |
| D. | Coccidiosis |
| Answer» C. poolorum | |
| 2785. |
What is the main content of natural silk? |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» C. 6 | |
| 2786. |
India has developed the first vaccine for blue tongue disease which is mainly found in which of the following? |
| A. | chicken |
| B. | dogs |
| C. | sheep and goats |
| D. | monkey |
| Answer» D. monkey | |
| 2787. |
Who does 'Bird Flu' affect? |
| A. | to animals |
| B. | to poultry |
| C. | to sheep |
| D. | to shrimp |
| Answer» C. to sheep | |
| 2788. |
Which of the following diseases has had a serious impact on the poultry industry? |
| A. | bovine diarrhea |
| B. | blood cancer |
| C. | Foot and mouth |
| D. | Avion influenza |
| Answer» E. | |
| 2789. |
'Strip cup test' is related to which disease? |
| A. | milk fever |
| B. | Newcastle DCs |
| C. | Thanaila |
| D. | tick fever |
| Answer» D. tick fever | |
| 2790. |
'Ranikhet disease' is related to? |
| A. | cattle |
| B. | chicken |
| C. | rabbit |
| D. | none of these |
| Answer» C. rabbit | |
| 2791. |
Foot and mouth disease is found in |
| A. | cats |
| B. | cattle |
| C. | Poultry |
| D. | human |
| Answer» B. cattle | |
| 2792. |
What are the causes of disease of feet and mouth of animals? |
| A. | Virus |
| B. | protozoa |
| C. | bacteria |
| D. | none of the above |
| Answer» D. none of the above | |
| 2793. |
What is the cause of 'Apha disease' in animals? |
| A. | bacteria |
| B. | fungus |
| C. | Virus |
| D. | polluted diet |
| Answer» E. | |
| 2794. |
How long is the gestation period of a cow? |
| A. | 270 days |
| B. | 278 days |
| C. | 282 days |
| D. | 290 days |
| Answer» C. 282 days | |
| 2795. |
How long is the gestation period of sheep? |
| A. | 160 days |
| B. | 150 days |
| C. | 140 days |
| D. | 130 days |
| Answer» C. 140 days | |
| 2796. |
How long is the gestation period of a buffalo? |
| A. | 270 days |
| B. | 278 days |
| C. | 282 days |
| D. | 308 days |
| Answer» E. | |
| 2797. |
Milk fever disease in animals is caused due to the deficiency of |
| A. | nitrogen |
| B. | calcium |
| C. | Vitamin D |
| D. | iron |
| Answer» C. Vitamin D | |
| 2798. |
Why do we put a wooden handle in a kettle? |
| A. | because of fashion |
| B. | Wood is a poor conductor of heat and the handle does not heat up |
| C. | gets lighter |
| D. | none of these |
| Answer» C. gets lighter | |
| 2799. |
Can a cat see more at night? |
| A. | by nature |
| B. | because of the special structure of the pupil |
| C. | daytime sleepiness |
| D. | none of these |
| Answer» C. daytime sleepiness | |
| 2800. |
Sulfur is used for? |
| A. | in dynamite |
| B. | in gunpowder |
| C. | in gunpowder |
| D. | in all of the above |
| Answer» E. | |