'Shock –absorbers' are usually made of steel as it:

• is not brittle
• has lower elasticity
• has higher elasticity
• has no ductile property

The function of ball bearing in a wheel is:

• to increase friction
• to convert kinetic friction into rolling friction
• to convert static friction into kinetic friction
• just for convenience

The time period of a pendulum when taken to the Moon would:

• remain the same
• decrease
• become zero
• increase

The longest bone in the human body is:

• Ulna
• Humerus
• Femur
• Tibia

Saliva helps in the digestion of:

• fats
• starch
• proteins
• vitamins

Ringworm is a ___________ disease.

• bacterial
• protozoan
• viral
• fungal

If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by:

• mercury
• lead
• iron
• arsenic

What happens to a person who receives the wrong type of blood?

• all the arteries constrict
• all the arteries dialate
• the RBCs agglutinate
• the spleen and lymph nodes deteriorate

Angle of friction and angle of repose are:

• equal to each other
• not equal to each other
• proportion to each other
• none of the above

Which of the following is not a nucleon?

• proton
• neutron
• electron
• positron