RRB ALP 2018 Practice Test Papers | General Science (Day-3)

Dear Aspirants, Here we have given the Important RRB ALP & Technicians Exam 2018 Practice Test Papers. Candidates those who are preparing for RRB ALP 2018 can practice these questions to get more confidence to Crack RRB 2018 Examination.

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1. Light can travel in

1. air only
2. vacuum only
3. both air and vacuum
4. none of the mediums

2. Gibberellins help in the growth of

1. Stems
2. Fruits
3. Seeds
4. Shoot

3. Which instrument is used to measure blood pressure?

1. Sphygmomanometer
2. Barometer
3. Glucometer
4. Spirometer

4. Diamonds can be synthesized by

1. reacting carbon and sulphuric acid
2. electrolysis of pure carbon and lead
3. subjecting pure carbon to very high pressure and temperature
4. double decomposition of carbon dioxide and nitric acid

5. Solid carbon dioxide is also called as

1. Dry ice
2. Hail stones
3. Compressed carbon
4. Rock salt

6. The upper part of the leaf is where the light falls, and it contains a type of cell called

1. chlorophyll
2. Palisade cell
3. Guard cells
4. Stomata

7. What is the Scientific Formula of sodium sulfate?

1. Na₂So
2. NaCo₂
3. c.NaSo₄
4. Na₂SO₄

8. Light travels very fast with a speed of _____________ metres per second in a vacuum.

1. 200 million
2. 300 million
3. 400 million
4. 500 million

9. The principle of an alternating current generator is based on _____

1. Coulomb’s law
2. Ampere’s law
3. Faraday’s law
4. Lenz’s law

10. Aspirin was discovered by

1. Lloyd M. Smith
2. Alexander Fleming
3. Thomas Green Morton
4. Felix Hoffman

 

Answers:

1.Answer: C

Light travels as a wave. But unlike sound waves or water waves, it does not need any matter or material to carry its energy along. This means that light can travel through a vacuum—a completely airless space. … It speeds through the vacuum of space at 186,400 miles (300,000 km) per second.

2.Answer: A

Gibberellins are growth hormones that stimulate cell elongation and cause plants to grow taller. Gibberellins also have a role in other plant processes, such as stem elongation, germination, flowering, and fruit ripening. … Once a plant releases gibberellins, its cells begin a process of elongation.

3.Answer: A

A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure, composed of an inflatable cuff to collapse and then release the artery under the cuff in a controlled manner, and a mercury or mechanical manometer to measure the pressure.

4.Answer: C

Synthetic diamond is also widely known as HPHT diamond or CVD diamond after the two common production methods (referring to the high-pressure high-temperature and chemical vapor deposition crystal formation methods, respectively).

5.Answer: A

Dry ice, sometimes referred to as “cardice” (chiefly by British chemists), is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice and not leaving any residue (other than incidental frost from moisture in the atmosphere).

6.Answer:  B

The upper part of the leaf is where the light falls, and it contains a type of cell called a palisade cell. This is adapted to absorb a lot of light. It has lots of chloroplasts and is shaped like a tall box.

7.Answer: D

The formula for sodium sulfate is Na2SO4.

8.Answer: B

Light travels very fast with a speed of 300 million metres per second in a vacuum. It takes only 8 minutes and 20 seconds for light to travel from the Sun to the Earth. Through the air light travels about a million times faster than sound.

9.Answer: C

It works based on principle of faraday law of electromagnetic induction. The faradays law states that whenever a conductor is placed in a varying magnetic field, EMF is induced and this induced EMF is equal to the rate of change of flux linkages.

10.Answer: D

Aspirin, also known as acetylsalicylic acid, is a medication used to treat pain, fever, or inflammation. Specific inflammatory conditions in which aspirin is used include Kawasaki disease, pericarditis, and rheumatic fever.

 

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