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PRAXIS2 PDF DEMO:
QUESTION NO: 1
What are the odds in favor that when the letters of the word UNIVERSITY are arranged randomly, the I's
come together?
A. 2:3
B. 1:4
C. 3:4
D. 2:5
E. 1:3
Answer: B
QUESTION NO: 2
Four persons enter the lift of a seven storey building at the ground floor. In how many ways can they get
out of the lift on any floor other than the ground floor?
A. 720
B. 1296
C. 1663
D. 360
E. 2500
Answer: B
QUESTION NO: 3
Ten different letters of an alphabet are given. Words with 6 letters are formed with these alphabets. How
many such words can be formed when repetition is not allowed in any word?
A. 52040
B. 21624
C. 182340
D. 151200
E. 600000
Answer: D
QUESTION NO: 4
The fossil remain of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for more
than two centuries. How such large creatures, which weighed in some cases as much as a piloted hangglider and had wingspans from 8 to 12 meters, solved the problems of powered flight, and exactly
what these creatures were-reptiles or birds-are among the questions scientist have puzzled over.
Perhaps the least controversial assertion about the pterosaurs is that they were reptiles. Their skulls, pelvises, and hind feet are reptilian. The anatomy of their wings suggests that they did not evolve into the
class of birds. In pterosaurs a greatly elongated fourth finger of each forelimb supported a wing like membrane. The other fingers were short and reptilian, with sharp claws, in birds the second finger is the
principle strut of the wing, which consists primarily of features. If the pterosaur walked or remained stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V- shape
along side of the animal's body.
The pterosaurs resembled both birds and bats in their overall structure and proportions. This is not surprising because the design of any flying vertebrate is subject to aerodynamic constraints. Both the pterosaurs and the birds have hollow bones, a feature that represents a saving in weight. In the birds, however, these bones are reinforced more massively by internal struts.
Although scales typically cover reptiles, the pterosaurs probably had hairy coats. T.H. Huxley reasoned
that flying vertebrates must have been warm blooded because flying implies a high internal temperature.
Huxley speculated that a coat of hair would insulate against loss of body heat and might streamline the
body to reduce drag in flight. The recent discovery of a pterosaur specimen covered in long, dense, and
relatively thick hairlike fossil material was the first clear evidenced that his reasoning was correct.
Efforts
to explain how the pterosaurs became air-borne have led to suggestions that they launched themselves
by jumping from cliffs, by dropping from trees, or even by rising into light winds from the crests of waves.
Each hypothesis has its difficulties. The first wrongly assumes that the pterosaur's hind feet resembled a
bat's and could served as hooks by which the animal could bang in preparation for flight. The second hypothesis seems unlikely because large pterosaurs could not have landed in trees without damaging their wings. The birds call for high waves to channels updrafts. The wind that made such waves however,
might have been too strong for the pterosaurs to control their flight once airborne.
According to the passage, the lack of critical attention paid to Jane Austen can be explained by all of the
following nineteenth-century attitudes towards the novel EXCEPT the
A. assurance felt by many people that novels weakened the mind
B. certainly shared by many political commentators that the range of novels was too narrow
C. Lack of interest shown by some critics in novels that were published anonymously
D. fear exhibited by some religious and political groups that novels had the power to portray immoral characters attractively
E. belief held by some religious and political groups that novels had no practical value.
Answer: B
QUESTION NO: 5
There are three disks on a board of a child's toy. The colours are red, green and blue, dark shades on one
side of the disks and light shades on the other side. The disks are turned to change colours from the initial
setting according to the following rules.
If red is the only one in light shade in the initial setting, then turn the green disk.
If red and green are the only ones in light shades in the initial setting, then turn the blue disk.
If all three disks are in light shades in the initial setting, then turn the blue disk.
For any other initial setting, turn all disks.
If the initial setting is red and green disks in light shade and blue in dark, what is the second setting?
A. AII in light shades
B. Only green ion dark shade
C. Only red in light shade
D. Only green in light shade
E. Only blue in light shade
Answer: A
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Updated: May 26, 2022