Noise levels in residential areas should not exceed:

• 30 decibels
• 100 decibels
• 85 decibels
• 55 decibels

What is the S.I. unit of electric current?

• Volt
• Watt
• Ampere
• Ohm

India's first supercomputer is known as:

• SAGA
• PARAM 8000
• EKA
• PARAM YUVA

"Athlete's foot" is:

• a specific footwear for athletes to prevent them from straining their feet
• an allergic skin rash
• a common fungal infection that attacks the skin below the toes
• an eczema

Which one is a water soluble vitamin?

• Vitamin A
• Vitamin C
• Vitamin K
• Vitamin D

What makes a lemon sour?

• Tartaric acid
• Oxalic acid
• Citric acid
• Hydrochloric acid

The weight of a body at the centre of the earth is:

• zero
• infinite
• same as at other places
• none of these

The acid present in the stomach of human beings is:

• HNO₃
• H₂CO₃
• HCl
• H₂SO₄

Organic farming does not include:

• green manures
• chemical fertilizers
• crop rotation
• compost and farmyard manures

The stars twinkle at night because:

• they emit energy
• of diffraction
• of refraction
• of relection