Questions

Q:

In a bipolar junction transistor

A) all the three regions (the emitter, the base and the collector) have equal concentrations of impurity B) the emitter has the least concentration of impurity
C) the collector has the least concentration of impurity D) the base has the least concentration of impurity
 
Answer & Explanation Answer: D) the base has the least concentration of impurity

Explanation:

In terms of concentration of impurity (a.k.a impurity doping concentration, often abbreviated to doping concentration), from the highest to the lowest among the three regions of a bipolar junction, emitter, collector, and base are the correct order. The above order is independent of the type of BJT, npn or pnp

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Q:

Which airport is the busiest airport in the world?

A) Hyderabad B) London
C) Newyork D) Dubai
 
Answer & Explanation Answer: D) Dubai

Explanation:

Dubai airport is the busiest airport in the world.

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Q:

Which state launched Kalia scholarship scheme to boost education for farmers children?

A) Odisha B) Uttar Pradesh
C) Haryana D) Madhya Pradesh
 
Answer & Explanation Answer: A) Odisha

Explanation:
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Q:

A passage is given with 5 questions following it. Read the passage carefully and choose the best answer to each question out of the four alternatives.


The quest to find life outside the solar system got a big boost with the discovery of seven Earth-size extra-solar planets, or exoplanets, orbiting a dwarf star about 40 light years away. Unlike earlier discoveries of exoplanets, all seven planets could possibly have liquid water — a key to life as we know it on Earth — with three planets having the greatest chance. This is by far the largest collection of Earth-like planets in the habitable 'Goldilocks' zone of a star — neither too close nor too far from a star, which raises the possibility of liquid water being present on the surface. Only Earth has liquid water in the solar system. Since the dwarf star is much cooler than the Sun, the dimming of light each time a planet passes or transits before the star could be easily recorded from Earth unlike in cases when planets transit a Sun-like bright star. Since the initial discovery of three planets was made using the Chile-based Transiting Planets and Planetesimals Small Telescope, the exoplanet system is called TRAPPIST-1.

 

How many planets in our solar system have liquid water?

A) Two B) Three
C) One D) Four
 
Answer & Explanation Answer: C) One

Explanation:
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Q:

The International chriminal Police Organisation has its headquaters at

A) Paris B) Rio de Janeiro
C) Dar es Salam D) None of these
 
Answer & Explanation Answer: A) Paris

Explanation:
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Q:

Which period in medieval western Europe is known as 'Dark Ages'?

A) Early Middle Ages B) Late Middle Ages
C) Entire Middle Ages D) Mid Middle Ages
 
Answer & Explanation Answer: A) Early Middle Ages

Explanation:

The Early Middle Ages have often been called the Dark Ages, and to some extent  they were truly dark. The people led a miserable life. Education was very uncommon. The helplessness of the comman man the arbitary rule of the king and the barons and the absence of national unity-all these conditions were common in Europe. The term 'Middle Ages' does not cover a uniform period for all the countries of the world.For Europe and the Westren World , the 'Middle Ages' are generally considered to be the period between AD 500 and AD 1500.

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Q:

Which of the following tennis player recently won his 99th career title in his hometown?

A) Roger Federer B) Novak Djokovic
C) Alexander Zverev D) None of the above
 
Answer & Explanation Answer: A) Roger Federer

Explanation:

Roger Federer, a star tennis player won his 99th career title in his hometown, Switzerland.

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Q:

The taper on the lathe spindle is

A) 1 in 10 B) 1 in 20
C) 1 in 15 D) 1 in 25
 
Answer & Explanation Answer: B) 1 in 20

Explanation:
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