AIEEE Questions and Answers with Explanation

Q:

The Value of $[\log (\tan (1^{0})) + \log (\tan (2^{0})) + \dots \dots + \log (\tan (89^{0}))]$ is

A) -1	B) 0
C) 1/2	D) 1

Answer & Explanation Answer: B) 0

Explanation:

$= [\log \tan (1^{0}) + \log \tan (89^{0})] + [\log \tan (2^{0}) + \log \tan (88^{0})] + \dots \dots + [\log \tan (45^{0})]$

$= \log [\tan (1^{0}) \times \tan (89^{0})] + \log [\tan (2^{0}) \times \tan (88^{0})] + \dots \dots + \log (1)$

$[∵ \tan (90 - θ) = c o t θ a n d \tan (45^{0}) = 1]$

= log 1 + log 1 +.....+log 1

= 0.

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Filed Under: Logarithms
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Q:

Which best describes transformation in bacteria?

A) Bacteria take DNA from their environment.	B) Bacteria inject DNA into another cell.
C) Bacteria lie dormant for many weeks.	D) Bacteria transfer DNA with a bacteriophage.

Answer & Explanation Answer: A) Bacteria take DNA from their environment.

Explanation:

"Bacteria take DNA from their environment" is what best describes transformation in bacteria.

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Filed Under: Biology
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Q:

Jaduguda mines are famous for

A) mica deposits	B) uranium deposits
C) gold deposits	D) iron ore

Answer & Explanation Answer: B) uranium deposits

Explanation:

The Jaduguda Mine also known as Jadugoda or Jadugora is a Uranium mine in Jaduguda village in the Purbi Singhbhum district of the Indian state of Jharkhand.

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Filed Under: Indian Geography
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Q:

ALU stands for in computer?

A) Automatic Logic Unit	B) Android Logic Unit
C) Arithmetic Logic Unit	D) None of the above

Answer & Explanation Answer: C) Arithmetic Logic Unit

Explanation:

alu_in_computer_is1551963521.jpg image

ALU in computer stands for Arithmetic Logic Unit.

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Q:

A 260 m long train running at the speed of 120 km/hr crosses another train running in opposite direction at the speed of 80 km/hr in 9 sec. What is the length of the other train ?

A) 240 mts	B) 270 mts
C) 260 mts	D) 250 mts

Answer & Explanation Answer: A) 240 mts

Explanation:

Relative speed = 120 + 80 = 200 km/hr.
= 200 x 5/18 = 500/9 m/sec.

Let the length of the other train be L mts.
Then, (L + 260)/9 = 500/9 => L = 240 mts.

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Filed Under: Problems on Trains
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Q:

The average age of the district level hockey team of eleven is 22 years.The average age gets increased by 1 year when the coach age is also included.what is the age of the coach ?

A) 33 yrs	B) 34 yrs
C) 35 yrs	D) 36 yrs

Answer & Explanation Answer: B) 34 yrs

Explanation:

Total age of players in team = 22 x 11 = 242
When coach is included, total members = 12, Avg age increases by one becomes 23
Total age when coach is included = 23x12 = 276
Age of coach = 276-242 = 34 yrs.

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Filed Under: Average
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Q:

Stee : Rails :: Alnico : ?

A) Magnets	B) Aircraft
C) Machinery	D) Silver ware

Answer & Explanation Answer: A) Magnets

Explanation:

First is used to makes the second.

Hence, Stee : Rails :: Alnico : Magnets.

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Filed Under: Analogy
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Q:

If A x B means A is to the south of B; A + B means A is to the north of B; A % B means A is to the east of B; A - B means A is to the west of B; then in P % Q + R - S, S is in which direction with respect to Q ?

A) South-East	B) North-West
C) East	D) West

Answer & Explanation Answer: A) South-East

Explanation:

P % Q + R - S
=> P is to the East of Q, who is to the North of R, who is to the West of S.
=> Q.....P
R.....S
=> With respect to Q, S is to the South-East of Q.

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Filed Under: Direction Sense Test
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