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Delhi Police Exam General Knowledge Study Material

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Science And Technology

The colour of the eye depends upon the pigment present in

a) Cornea
b) Iris
c) Rods
d) Cones

✔Answer

✔Solution

Correct Answer Is : Iris

Solution Is : The colour of the eye depends upon the pigment present in Iris.

The ability of the eye to see in the dark, is due to the production of a purple pigment known as

a) Carotene
b) Rhodopsin
c) Iodopsin
d) Retinene

✔Answer

✔Solution

Correct Answer Is : Retinene

Solution Is : The ability of the eye to see in the dark, is due to the production of a purple pigment known as Retinene.

Which of the following statements is true ?

a) Dehusked cereals and pulses are more nutritious
b) Whole grain cereals and pulses are more nutritious
c) Processed cereal products are nutrient dense
d) Breakfast cereals are nutrient dense

✔Answer

✔Solution

Correct Answer Is : Whole grain cereals and pulses are more nutritious

Solution Is : Whole grain cereals and pulses are more nutritious is true in the statements.

Which of the following animals is dumb ?

a) Deer
b) Giraffe
c) Stag
d) Yak

✔Answer

✔Solution

Correct Answer Is : Giraffe

Solution Is : Giraffe is a dumb animal.

Which one of the following is not a vaccine ?

a) BCG
b) Antirabies
c) Polio vaccine
d) Progesterone

✔Answer

✔Solution

Correct Answer Is : Progesterone

Solution Is : Progesterone is not a vaccine.

The deficiency of iodine leads to

a) Hyperthyrodism
b) Goitre
c) Midgut
d) Diabetes

✔Answer

✔Solution

Correct Answer Is : Goitre

Solution Is : The deficiency of iodine leads to goitre.

Two richest known sources of edible protien are

a) Meat and eggs
b) Some algae and other micro organisms
c) Soyabean and groundnut
d) Milk and leafy vegetables

✔Answer

✔Solution

Correct Answer Is : Soyabean and groundnut

Solution Is : Two richest known sources of edible protien are soyabean and groundnut.

The saliva helps in the digestion of

a) Protiens
b) Starch
c) Fibres
d) Fats

✔Answer

✔Solution

Correct Answer Is : Starch

Solution Is : The saliva helps in the digestion of starch .

Which of the following correctly explains the phenomenon of ` Test Tube Baby ` ?

a) When every process of embryo formation is in their test tube
b) When the embryo develops in a test tube
c) When the fertilisation is external and the development is internal
d) When the fertilisation is internal and development is external

✔Answer

✔Solution

Correct Answer Is : When the fertilisation is external and the development is internal

Solution Is : In test tube baby, the fertilisation is external and the development is internal

Heart attack occurs due to

a) Bacterial attack on the heart
b) Stopping of heart beat
c) Lack of supply of blood to the heart itself
d) Impairment of heart`s working due to unknown reasons.

✔Answer

✔Solution

Delhi Police Exam General Knowledge Study Material

Science And Technology

The colour of the eye depends upon the pigment present in

Correct Answer Is : Iris

Solution Is : The colour of the eye depends upon the pigment present in Iris.

The ability of the eye to see in the dark, is due to the production of a purple pigment known as

Correct Answer Is : Retinene

Solution Is : The ability of the eye to see in the dark, is due to the production of a purple pigment known as Retinene.

Which of the following statements is true ?

Correct Answer Is : Whole grain cereals and pulses are more nutritious

Solution Is : Whole grain cereals and pulses are more nutritious is true in the statements.

Which of the following animals is dumb ?

Correct Answer Is : Giraffe

Solution Is : Giraffe is a dumb animal.

Which one of the following is not a vaccine ?

Correct Answer Is : Progesterone

Solution Is : Progesterone is not a vaccine.

The deficiency of iodine leads to

Correct Answer Is : Goitre

Solution Is : The deficiency of iodine leads to goitre.

Two richest known sources of edible protien are

Correct Answer Is : Soyabean and groundnut

Solution Is : Two richest known sources of edible protien are soyabean and groundnut.

The saliva helps in the digestion of

Correct Answer Is : Starch

Solution Is : The saliva helps in the digestion of starch .

Which of the following correctly explains the phenomenon of ` Test Tube Baby ` ?

Correct Answer Is : When the fertilisation is external and the development is internal

Solution Is : In test tube baby, the fertilisation is external and the development is internal

Heart attack occurs due to

Correct Answer Is : Lack of supply of blood to the heart itself

Solution Is : Heart attack occurs due to lack of supply of blood to the heart itself.

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