Objective type questions in written exam test of 3m India Limited
1 → Questins : While repairing a fan, a trainee electrician connects the wires wrongly. When the fan is switched on, it rotates at the proper speed, but in the OPPOSITE direction. What will happen as a result of this? [383_10_q.jpg,120]
Option a> : The fan will work for sometime and then stop.
Option b> : The fan will consume more power.
Option c> : The fan will not throw down any air.
Option d> : The fan will work perfectly.
2 → Questins : According to Kepler’s Law, the speed of the earth’s revolution around the sun is greater when the earth is closer to the sun. See the figure and identify the month in which the speed of the earth’s revolution is least? [383_11_q.jpg,120]
Option a> : March.
Option b> : June.
Option c> : September.
Option d> : December.
3 → Questins : Some houses in India add alum (called ’fitkari’ in Hindi) to the water to purify it before drinking. How does it purify the water?
Option a> : It reacts with the impurities making them harmless.
Option b> : It causes impurities to dissolve in the water.
Option c> : It causes impurities to stick to it and settle down.
Option d> : It diffuses the impurities through reverse osmosis.
4 → Questins : When the power in their house unexpectedly went off, Radhika’s mother said that she would check and replace the FUSE. What exactly would she replace?
Option a> : A piece of wire
Option b> : A bulb
Option c> : An electric meter
Option d> : A switch
5 → Questins : What would happen if the axis of the earth were NOT tilted with reference to the plane of its revolution as shown in the second figure below? [383_14_q.jpg,200]
Option a> : There would be no difference at all.
Option b> : The sun would rise in the west and set in the east.
Option c> : In any place, the weather will be more uniform throughout the year.
Option d> : At any time, the weather will be almost the same throughout the world.
6 → Questins : Inside an atom, which of these occupies maximum VOLUME?
Option a> : The electrons
Option b> : The protons
Option c> : The neutrons
Option d> : Empty space (vacuum)
7 → Questins : An ADVANTAGE that cold-blooded animals have compared to warm-blooded ones is:
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