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MCQOPTIONS
This section includes 2267 Mcqs, each offering curated multiple-choice questions to sharpen your 6th Class knowledge and support exam preparation. Choose a topic below to get started.
| 1451. |
The processes involved in the formation of fog and ice from water are: |
| A. | Solidification and condensation |
| B. | Condensation and solidification |
| C. | Evaporation and condensation |
| D. | Both solidification and condensation |
| E. | None of these |
| Answer» C. Evaporation and condensation | |
| 1452. |
Which among the following cannot be used in the process of vermicomposting? |
| A. | Fruit peels |
| B. | Red worms |
| C. | Oil paints |
| D. | Soil |
| E. | None of these |
| Answer» D. Soil | |
| 1453. |
Slue garbage bin is used to throw: |
| A. | Banana peels |
| B. | Rotten egg |
| C. | Leftover cooked food |
| D. | Broken window glass |
| E. | None of these |
| Answer» E. None of these | |
| 1454. |
Which among the following can be considered as a good source for preparing compost? |
| A. | Polythene |
| B. | A rotten vegetable |
| C. | Aluminum foil |
| D. | Plastic bottle |
| E. | None of these |
| Answer» C. Aluminum foil | |
| 1455. |
Red worms are used in making compost from kitchen wastes: |
| A. | Composting |
| B. | Recycling |
| C. | Vermicomposting |
| D. | Worming |
| E. | None of these |
| Answer» D. Worming | |
| 1456. |
Which one of the following is a non-biodegradable waste? |
| A. | Glass bottle |
| B. | Metal needle |
| C. | Plastic bag |
| D. | All the above |
| E. | None of these |
| Answer» E. None of these | |
| 1457. |
Which of the following fruits contains the maximum amount of water? |
| A. | Apple |
| B. | Orange |
| C. | Watermelon |
| D. | Pineapple |
| E. | None of these |
| Answer» D. Pineapple | |
| 1458. |
Which gas is not a trace gas? |
| A. | Ozone |
| B. | Neon |
| C. | Helium |
| D. | Oxygen |
| E. | None of these |
| Answer» E. None of these | |
| 1459. |
Presence of increased ______ in the air means increased humidity. |
| A. | Dust particles |
| B. | Oxygen |
| C. | Water vapour |
| D. | Smoke |
| E. | None of these |
| Answer» D. Smoke | |
| 1460. |
Oxygen from the atmosphere can be reduced by: |
| A. | Rusting of iron |
| B. | Combustion |
| C. | Respiration by living things. |
| D. | All the above |
| E. | None of these |
| Answer» E. None of these | |
| 1461. |
Ozone is present in _____ layer of atmosphere. |
| A. | Troposphere |
| B. | Stratosphere |
| C. | Mesosphere |
| D. | Exosphere |
| E. | None of these |
| Answer» C. Mesosphere | |
| 1462. |
Which one of the following is the most abundant trace gas? |
| A. | Methane |
| B. | Ozone |
| C. | Argon |
| D. | Nitrous oxide |
| E. | None of these |
| Answer» D. Nitrous oxide | |
| 1463. |
Which of the following can interrupt the cycles of different atmospheric gases? |
| A. | Large scale deforestation |
| B. | Excessive burning of fuels |
| C. | Breathing by animals |
| D. | Both [a] and [b] |
| E. | None of these |
| Answer» E. None of these | |
| 1464. |
Solubility of air _____ as the temperature decreases. |
| A. | Increases |
| B. | Reduces |
| C. | Remains the same |
| D. | either [a] or [b] |
| E. | None of these |
| Answer» C. Remains the same | |
| 1465. |
Most saline form of natural water is: |
| A. | River water |
| B. | Ocean water |
| C. | Lake water |
| D. | Pond water |
| E. | None of these |
| Answer» C. Lake water | |
| 1466. |
Temporary hardness of water is caused due to: |
| A. | Presence of magnesium in water. |
| B. | Presence of calcium bicarbonate in water. |
| C. | Both [a] and [b] |
| D. | Either [a] or [b] |
| E. | None of these |
| Answer» D. Either [a] or [b] | |
| 1467. |
Arrange the processes involved in the water cycle in correct sequence on the basis of above figure. |
| A. | Evaporation, Condensation, Precipitation, Accumulation |
| B. | Condensation, Evaporation, Precipitation, Accumulation |
| C. | Evaporation, Condensation, Accumulation, Precipitation |
| D. | Precipitation, Evaporation, Condensation, Accumulation |
| E. | None of these |
| Answer» B. Condensation, Evaporation, Precipitation, Accumulation | |
| 1468. |
A process in which any product of condensation of atmospheric water vapor falls under gravity. |
| A. | Respiration |
| B. | Transpiration |
| C. | Precipitation |
| D. | Solidification |
| E. | None of these |
| Answer» D. Solidification | |
| 1469. |
The process which is involved in addition of water vapours to the air is: |
| A. | Evaporation |
| B. | Transpiration |
| C. | Both [a] and [b] |
| D. | Either [a] or [b] |
| E. | None of these |
| Answer» D. Either [a] or [b] | |
| 1470. |
_______ Vegetable contains maximum amount of water. |
| A. | Brinjal |
| B. | Cucumber |
| C. | Garlic |
| D. | Broccoli |
| E. | None of these |
| Answer» C. Garlic | |
| 1471. |
Water table is: |
| A. | Level of surface water |
| B. | Level of water in lakes |
| C. | Level of ground water |
| D. | Level of sea water |
| E. | None of these |
| Answer» D. Level of sea water | |
| 1472. |
Look at the following two diagrams and answer in which case bulb will glow? |
| A. | both (i) and (ii) |
| B. | only (i) |
| C. | only (ii) |
| D. | None of the above is correct |
| Answer» C. only (ii) | |
| 1473. |
The diagram below shows an electric circuit. Chemical energy from the battery is changed into electrical energy. This electrical energy is then changed to which type of energy? |
| A. | electrical energy into chemical energy |
| B. | electrical energy into heat energy |
| C. | electric energy into light energy |
| D. | electric energy into sound energy |
| Answer» D. electric energy into sound energy | |
| 1474. |
The diagram below shows a bulb and a wire attached to a battery. Why would this bulb be lit? |
| A. | The battery is out of energy |
| B. | The bulb is out of energy |
| C. | The circuit is opened |
| D. | The circuit is closed |
| Answer» E. | |
| 1475. |
A student attached two balloons to equal lengths of string and tied them to the same point. The student observed that the balloons repelled each other, as shown in the diagram below. In terms of electrical charges, explain why the balloons repelled each other? |
| A. | because both the balloons are positively charged |
| B. | because both the balloon are negatively charged |
| C. | because one is positively and another is negatively charged |
| D. | either (a) or (b) |
| Answer» E. | |
| 1476. |
The diagram below shows an incomplete circuit. Which item would allow the bulb to light up if it were used to connect point A to point B? |
| A. | a glass rod |
| B. | a metal coin |
| C. | a plastic comb |
| D. | a paper cup |
| Answer» C. a plastic comb | |
| 1477. |
DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement-1: There is very less current flows when an electric circuit is open. Statement-2: When the switch of an electric circuit is in off mode, the circuit is said to be open. Statement-3: One can get a shock in open circuit. |
| A. | Statement (1) and (3) are incorrect while statement (2) is correct. |
| B. | Statement (1) and (2) are incorrect while (3) is correct. |
| C. | All the statements are correct. |
| D. | All the statements are incorrect. |
| Answer» B. Statement (1) and (2) are incorrect while (3) is correct. | |
| 1478. |
DIRECTIONS: Read the following three statements carefully and choose the correct option. Statement-1: If a human high tension wire he will get electric shock. Statement-2: Transmission wires carry a very low voltage current. Statement-3: A bird sitting on a bare high power transmission wire feels a very feeble current. |
| A. | Statement (1) and (3) are incorrect while statement (2) is correct. |
| B. | Statement (1) and (2) are incorrect while (3) is correct. |
| C. | All the statements are correct. |
| D. | All the statements are incorrect. |
| Answer» C. All the statements are correct. | |
| 1479. |
Electric cell converts |
| A. | electric energy into chemical energy |
| B. | heat energy into electric energy |
| C. | chemical energy into electric energy |
| D. | electric energy into light energy |
| Answer» D. electric energy into light energy | |
| 1480. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: Insulators do not allow the current to flow through themselves. Reason (R): They have no free charge carriers. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» B. Both A and R are true but R is not the correct explanation of A. | |
| 1481. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: A domestic electric appliance working on a three pin, will continue working even if the top pin is removed. Reason (R): The third pin is used only for safety purpose. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» B. Both A and R are true but R is not the correct explanation of A. | |
| 1482. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: Silver is not used to make electric wires. Reason (R): Silver is a bad conductor. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» D. A is false but R is true. | |
| 1483. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 An arrangement in which two terminals of an electric cell are connected to two terminals of the bulb is known as electric circuit. Current flows from positive to negative terminal in closed circuit. Filament of bulb is made up of tungsten. The filament of bulb is made of |
| A. | a metal |
| B. | tungsten |
| C. | Both the above are correct |
| D. | None of these is correct |
| Answer» C. Both the above are correct | |
| 1484. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 An arrangement in which two terminals of an electric cell are connected to two terminals of the bulb is known as electric circuit. Current flows from positive to negative terminal in closed circuit. Filament of bulb is made up of tungsten. Which of the following statements) is/are correct? |
| A. | The bulb in the circuit may not glow if the bulb is fused |
| B. | The bulb in the circuit may not glow if its filament is broken |
| C. | Both the above |
| D. | None of the above |
| Answer» D. None of the above | |
| 1485. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 An arrangement in which two terminals of an electric cell are connected to two terminals of the bulb is known as electric circuit. Current flows from positive to negative terminal in closed circuit. Filament of bulb is made up of tungsten. What is the direction of flow in an electric circuit? |
| A. | From positive terminal to negative terminal of electric cell. |
| B. | From negative terminal to positive terminal of electric cell |
| C. | Both the above are correct |
| D. | None of the above is correct |
| Answer» B. From negative terminal to positive terminal of electric cell | |
| 1486. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 An electric bulb has a filament that is connected to the terminals. The two terminals of filament are fixed with two thick wires provides support to it. These terminals are fixed in such a manner that they do not touch each other. Which of the following statement(s) is/are correct? |
| A. | The two terminals of a bulb are fixed in such a way that they do not touch each other. |
| B. | The two terminals of a bulb are fixed in such a way that they touch each other. |
| C. | The two terminals of a bulb are connected to the same terminal of the electric cell. |
| D. | None of the above is correct |
| Answer» B. The two terminals of a bulb are fixed in such a way that they touch each other. | |
| 1487. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 An electric bulb has a filament that is connected to the terminals. The two terminals of filament are fixed with two thick wires provides support to it. These terminals are fixed in such a manner that they do not touch each other. Filament is |
| A. | a thin wire that gives off light when bulb is switched on |
| B. | fixed to two thick wires which provides support to it |
| C. | Both the above are correct |
| D. | None of these is correct |
| Answer» D. None of these is correct | |
| 1488. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 An electric bulb has a filament that is connected to the terminals. The two terminals of filament are fixed with two thick wires provides support to it. These terminals are fixed in such a manner that they do not touch each other. Where is the filament fixed in the electric bulb? |
| A. | Near the positive terminal |
| B. | Near the negative terminal |
| C. | In the middle |
| D. | None of the above is correct |
| Answer» D. None of the above is correct | |
| 1489. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage -1 Those materials which do not allows electric current to pass through them are called insulators e.g., air, cork, rubber, thermocole, paper, etc. Insulators are used for covering electrical wires, plug tops, switches and other parts of electrical appliances. Covers of electric plugs are made up of |
| A. | conductors |
| B. | metals |
| C. | insulators |
| D. | all of these |
| Answer» D. all of these | |
| 1490. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage -1 Those materials which do not allows electric current to pass through them are called insulators e.g., air, cork, rubber, thermocole, paper, etc. Insulators are used for covering electrical wires, plug tops, switches and other parts of electrical appliances. We can turn OFF the switch without getting an electric shock because |
| A. | it is covered with an insulating material |
| B. | it is covered with conducting material |
| C. | our hand is bad conductor of electricity |
| D. | None of these |
| Answer» B. it is covered with conducting material | |
| 1491. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage -1 Those materials which do not allows electric current to pass through them are called insulators e.g., air, cork, rubber, thermocole, paper, etc. Insulators are used for covering electrical wires, plug tops, switches and other parts of electrical appliances. House wiring electric wires are generally covered with rubber. It is because, rubber is |
| A. | a good conductor |
| B. | a partial conductor |
| C. | easily available |
| D. | an insulator |
| Answer» E. | |
| 1492. |
DIRECTION: Match Column-I with Column-II and select the correct answer using the code given below the columns. Column-I Column-II A. Two terminals (p) Both electric cell and bulb B. Filament (q) Bulb C. Source of electricity (r) Electric cell D. Device used to make or break an electric circuit (s) Electric switch |
| A. | \[A\to (p);B\to (q);C\to (r);D\to (s)\] |
| B. | \[A\to (q);B\to (p);C\to (r);D\to (s)\] |
| C. | \[A\to (q);B\to (p);C\to (s);D\to (r)\] |
| D. | \[A\to (p);B\to (q);C\to (s);D\to (r)\] |
| Answer» B. \[A\to (q);B\to (p);C\to (r);D\to (s)\] | |
| 1493. |
Why are you advised to take precautions (e.g. wear rubber gloves etc.) while handling electrical appliances? |
| A. | Your body is a good conductor of electricity |
| B. | Your body is a bad conductor of electricity |
| C. | You appear an electrical engineer when you wear gloves |
| D. | None of the above |
| Answer» B. Your body is a bad conductor of electricity | |
| 1494. |
Electric switch is |
| A. | a simple device that is used to break the electric circuit |
| B. | a simple device that is used to complete the electric circuit |
| C. | a simple device that is used to break or to complete the electric circuit |
| D. | None of the above is correct |
| Answer» D. None of the above is correct | |
| 1495. |
Electric circuit is |
| A. | any arrangement in which we have the two terminals of a cell connected to each others by a conducting wire |
| B. | any arrangement in which we have the two terminals of a cell connected to each other by a non- conducting wire. |
| C. | any arrangement in which we have the two terminals of a cell connected to the two terminals of a bulb. |
| D. | any arrangement in which two terminals of a bulb are connected to each other, through a switch, with the help of connecting wires. |
| Answer» D. any arrangement in which two terminals of a bulb are connected to each other, through a switch, with the help of connecting wires. | |
| 1496. |
A cell is generally provided with a cap. The main function performed by this cap is |
| A. | it seals the contents of the cell |
| B. | it keeps various parts of cell in their place |
| C. | it acts as negative terminal of the cell |
| D. | None of the above |
| Answer» E. | |
| 1497. |
In a closed electric circuit, current flows |
| A. | in the direction of flow of electrons |
| B. | in the direction opposite to the flow of electrons. |
| C. | negative terminal to positive terminal of cells |
| D. | None of these |
| Answer» C. negative terminal to positive terminal of cells | |
| 1498. |
In an electric circuit, the two terminals of the electric cell are |
| A. | connected directly to each other |
| B. | connected to the filament of the bulb |
| C. | connected to the two terminals of the bulb |
| D. | All the above are correct |
| Answer» D. All the above are correct | |
| 1499. |
What for is a tester used by the electrician? |
| A. | to test the presence of electric current |
| B. | to find the amount of electric current passing through an electric circuit |
| C. | to measure the rate of flow of current through an electric circuit |
| D. | None of the above |
| Answer» B. to find the amount of electric current passing through an electric circuit | |
| 1500. |
The electric current passes from one terminal to the other terminal of the electric cell, when |
| A. | electric circuit is open |
| B. | electric circuit is closed |
| C. | electric circuit is provided with a switch |
| D. | All the above are correct |
| Answer» C. electric circuit is provided with a switch | |