Q:

The pair of spinal nerves in main are

A) 30	B) 31
C) 32	D) 33

Answer & Explanation Answer: B) 31

Explanation:

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Filed Under: Biology

12 4087

Q:

A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be

A) a parabola	B) a circle
C) a horizontal straight line	D) a vertical straight line

Answer & Explanation Answer: A) a parabola

Explanation:

Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train. So by Newton's first law, it continues its motion horizontally with that velocity. But then, it is also pulled down by earth's gravity continuously. In this situation its horizontal motion gives way to the parabolic motion until it reaches the ground.

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Filed Under: Physics

2 4085

Q:

Mycolog is the branch of botany in which we study about

A) Algae	B) Fungi
C) Bacteria	D) Virus

Answer & Explanation Answer: B) Fungi

Explanation:

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Filed Under: Biology

7 4084

Q:

Train A, travelling at 84 kmph, overtook train B, traveling in the same direction, in 10 seconds. If train B had been traveling at twice its speed, then train A would have taken 22.5 seconds to overtake it. Find the length of train B, given that it is half the length of train A.

A) 180 m	B) 100 m
C) 200 m	D) 150 m

Answer & Explanation Answer:

Explanation:

Let speed of train B be x m/s And length of train B be y m
Then length of train A is 2y m
Speed of train A = 84 × 5/18 = 210/9 m/s = 70/3 m/s
A.T.Q, (2y+y)/10 = 70/3 − x .............(i)
and (2y+y)/ 22.5 = 70/3 − 2x ................(ii)
solving (i) and (ii), y = 50 m

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

0 4083

Q:

'Roaring Forties' are

A) waterfalls in canada	B) cyclonic winds
C) the turbulent years in world History from 1940 to 1944	D) westerly winds blowing through out the year over the oceans of the Southern Hemisphere between 40 degrees and 60 degrees south

Answer & Explanation Answer: D) westerly winds blowing through out the year over the oceans of the Southern Hemisphere between 40 degrees and 60 degrees south

Explanation:

The absence of a landmass within these latitudes in the southern hemisphere eliminate friction and lends force to these winds and hence derives the name

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Filed Under: World Geography

0 4083

Q:

Name an animal that has eyes yet sightless?

Answer

Bats

Workspace

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Subject: Animals and Birds

33 4081

Q:

An Oracle System Change Number (SCN):

A) is a value that is incremented whenever a dirty read occurs.	B) is incremented whenever a deadlock occurs.
C) is a value that keeps track of explicit locks.	D) is a value that is incremented whenever database changes are made.

Answer & Explanation Answer: D) is a value that is incremented whenever database changes are made.

Explanation:

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Filed Under: Database

0 4080

Q:

Bose selected the best soldiers from the three existing brigades (named after Gandhi Azad and Nehru)and organised a new brigade which the soldiers themselves called

A) Himalayan Brigade	B) Swatantra Bharat Brigade
C) Bhagat Singh Brigade	D) Subhas Brigade

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