Jbf Industries Ltd Interview Questions And Answers

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Objective type questions in written exam test of Jbf Industries Ltd

1 → Questins : Wrap a coin with a thread and hang it in a lighted candle as shown in the figure for a few minutes. What will happen?
[396_21_q.jpg,190]

Option a> : The thread will burn, but the coin will not become hot.
Option b> : The thread will burn and the coin will become hot
Option c> : The thread will not burn but the coin will become hot.
Option d> : The thread will not burn and the coin will not become hot.

2 → Questins : The earth’s history is divided into various geological eras (like Cambrian, Jurassic, etc.) corresponding to different time periods in the earth’s past. The graphic alongside shows which species dominated in different geological eras.
For example, trilobites existed from the Cambrian times but declined by the end of Permian era.
Study the graphic and answer questions 22 and 23:
[396_22_q.jpg,500]
Which is the oldest surviving life form?

Option a> : Sponges
Option b> : Amphibians
Option c> : Reptiles
Option d> : Insects

3 → Questins : The earth’s history is divided into various geological eras (like Cambrian, Jurassic, etc.) corresponding to different time periods in the earth’s past. The graphic alongside shows which species dominated in different geological eras.
For example, trilobites existed from the Cambrian times but declined by the end of Permian era.
Study the graphic and answer questions 22 and 23:
[396_22_q.jpg,500]

Which life forms appear to be extinct?

Option a> : sponges, insects and flowering plants
Option b> : bony fishes, dinosaurs and mammals
Option c> : sponges, insects and reptiles
Option d> : trilobites and ammonites

4 → Questins : There are many reasons why the amount of heat received at higher latitudes is less than the lower latitudes. Which of these is NOT a reason?
[396_24_q.jpg,150]

Option a> : Sunlight has to pass through a greater thickness of atmosphere in the higher latitudes.
Option b> : Sunlight has to travel a greater distance to enter the atmosphere in the higher latitudes.
Option c> : Sunlight that strikes the Earth is spread over a greater area in the higher latitudes.
Option d> : More of the sunlight striking Earth is reflected away in the higher latitudes.

5 → Questins : We know that like charges repel each other. Then how do the protons, which are all positively charged, stay together in an atom^s nucleus?

Option a> : The neutral charge of the neutron keeps them together.
Option b> : Nuclei keep decaying in short intervals because of this.
Option c> : The nucleic force is stronger than their mutual repulsion.
Option d> : That like charges repel is not true at the level of the nucleus.

6 → Questins : Your task is to generate electricity through a chemical reaction. Which among the following groups would you use?

Option a> : Magnet, Copper Wire, HCl, Test Tube
Option b> : Beaker, HCl, Zinc, Copper Strips
Option c> : Silk Material, Rubber Rod, Electroscope
Option d> : H2SO4, Graphite, Silicon, Graduated Cylinder

7 → Questins : Some students counted the birds in an area. They counted the number of species present and the number of birds in each species. Which of these would be best to use to report the results?

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