Quality of petrol is expressed in:

• Gold number
• Cetane number
• Methane number
• Octane number
Correct Option: D  [ Octane number ]

Remark:

Purity of milk is tested by:

• Electrometer
• Lactometer
• Radiometer
• Refractometer
Correct Option: B  [ Lactometer ]

Remark:

Bronze is an alloy of:

• Copper and Zinc
• Tin and Zinc
• Copper and Tin
• Iron and Zine
Correct Option: C  [ Copper and Tin ]

Remark:

Which microorganism is responsible for Dengue fever?

• Fungi
• Viruses
• Bacteria
• Protozoa
Correct Option: B  [ Viruses ]

Remark: transmitted by mosquitoes 'Aedes aegypti'.

Who invented Dynamite?

• J B Dunlop
• Alfred Nobel
• James Simons
• Peter Hargreaves
Correct Option: B  [ Alfred Nobel ]

Remark:

Sericuluture is a rearing practice of :

• Fishes
• Silk worm
• Honey bees
• Earth worm
Correct Option: B  [ Silk worm ]

Remark:

Yeast are most likely to grow in frozen fruits during:

• Slow thawing
• Refrigeration
• Ambient temperature
• High temperature
Correct Option: A  [ Slow thawing ]

Remark: Slow thawing is the gradual process of allowing a frozen item to return to its natural state by exposing it to a controlled temperature environment. This method is often preferred over rapid thawing to maintain the quality, safety, and integrity of the food.

What is Bryolory?

• Study of food
• Study of fruit
• Study of mosses and liverworts
• Study of rings
Correct Option: C  [ Study of mosses and liverworts ]

Remark:

The primary producer in an ecosystem are:

• Bacteria
• Women
• Men
• Plants
Correct Option: D  [ Plants ]

Remark:

One kilometre is equal to how many miles?

• 0.84
• 0.5
• 1.6
• 0.62
Correct Option: D  [ 0.62 ]

Remark: