Measles is a disease caused by :

• Bacteria
• Protozoa
• Worm
• Virus
Correct Option: D  [ Virus ]

Remark:

Pure gold is of

• 24 Carat
• 18 Carat
• 22 Carat
• None of these
Correct Option: A  [ 24 Carat ]

Remark: A "carat" is a unit of measurement used to express the weight of gemstones, particularly diamonds and gold etc.

Which of the following is a large blood vessel that carries blood away from the heart ?

• Vein
• Artery
• Capillary
• Nerve
Correct Option: B  [ Artery ]

Remark:

When an iron nail gets rusted, iron oxide is formed.

• without any change in the weight of the nail.
• with decrease in the weight of the nail.
• with increase in the weight of the nail.
• without any change in colour or weight of the nail.
Correct Option: C  [ with increase in the weight of the nail. ]

Remark: Rust is composed of iron oxide, which forms as a result of the reaction between iron, oxygen, and water.

Parasites which initiate production of antibodies within hosts are termed as

• Homoparasites
• Zooparasites
• Pathogenic parasites
• Endoparasies
Correct Option: C  [ Pathogenic parasites ]

Remark:

Cerebral Malaria is caused by:

• Plasmodium vivax
• Plasmodium malariae
• Plasmodium falciparum
• None of the above
Correct Option: C  [ Plasmodium falciparum ]

Remark:

SA-node of mammalian heart is known as :

• Autoregulator
• Pace-maker
• Time controller
• Beat regulator
Correct Option: B  [ Pace-maker ]

Remark:

Which of the following lenses would you prefer to read small letters in a dictionary ?

• A convex lens of focal length 50 cm
• A concave lens of focal length 50 cm
• A convex lens of focal length 5 cm
• A concave lens of focal length 5 cm
Correct Option: C  [ A convex lens of focal length 5 cm ]

Remark:

Which among the following is respiratory pigment in human beings?

• Melanin
• Haemoglobin
• Rhodopsin
• Bilirubin
Correct Option: B  [ Haemoglobin ]

Remark:

To get an image, larger than object, one can use

• Convex mirror
• Concave mirror
• Plane mirror
• Plano Convex mirror
Correct Option: B  [ Concave mirror ]

Remark: