RRB ALP 2018 Practice Test Papers | General Knowledge (Day-20)

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.

[WpProQuiz 1757]

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1). Cyanide poisoning causes death in seconds because

1. it causes cardiac arrest
2. it denatures enzymes of the heart
3. it causes lysis of red blood cells
4. it breaks the electron transport chain

2). When a helium atom loses an electron it becomes

1. an alpha particle
2. a positive helium ion
3. a negative helium ion
4. a proton

3). When one gene pair hides the effect of another unit, the phenomenon is referred to as

1. dominance
2. epistasis
3. Mutation
4. Name of these

4). What are the folds found in the mucous lining of an empty stomach called?

1. Areolae
2. Rugae
3. Villi
4. Typhlosole

5). Spot the odd item from the following.

1. Marble
2. Limestone
3. Sandstone
4. Shale

6). Which of the following reasons is responsible for lack of vegetation in deserts?

1. Absence of B-horizon in the soil
2. High temperature
3. Lack of rainfall
4. Heavy volume of sands

7). Which of the following books was written by Mahatma Gandhi?

1. Discovery of India
2. My Truth
3. Hindu View of Life
4. Hind Swaraj

 8). The JallianwalaBagh massacre took place on

1. 13 April 1919
2. 17 April 1919
3. 19 April 1919
4. 21 April 1919

9). The type of kidneys present in frogs are

1. Metanephros
2. Archinephros
3. Pronephros
4. Mesonephros

10). Pleura is the covering of

1. liver
2. kidney
3. heart
4. lung

ANSWERS:

1. Answer: (a)

Cyanide poisoning causes death in seconds because it induces cardiac arrest. Some symptoms of cyanide poisoning are dizziness, increased heart rate, shortness of breath, headache and vomiting.

2. Answer: (b)

When a helium atom loses an electron, it becomes a positive helium ion due to getting positive charge since the number of protons in the helium atom becomes greater than the number of electrons.

3. Answer: (a)

Dominance in genetics refers to the phenomenon of one gene pair hiding the effects of another gene pair. The gene pair which hides the effect of the other pair is known as dominant while the other is referred to as recessive.

4. Answer: (b)

The folds found in the mucous lining of an empty stomach are known as rugae. They help in nutrient absorption by the stomach.

5. Answer: (a)

Marble is the odd one out as it is a metamorphic rock while limestone, sandstone and shale are sedimentary rocks.

6. Answer: (c)

Lack of rainfall is the reason behind the lack of vegetation in deserts since little to no precipitation occurs in the area.

7. Answer: (d)

Hind Swaraj was written by Mahatma Gandhi in 1909.

8. Answer: (a)

The JallianwalaBagh massacre took place on 13 April 1919, in which hundreds of innocent people were killed by the British army.

9. Answer: (d)

Mesonephros serves as a temporary kidney in aquatic vertebrates such as frogs.

10. Answer: (d)

Pleura is the name given to each of the two membranes that provide cover to lungs. These membranes are known as visceral and parietal pleurae.

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