STUDY MATERIAL FOR PA/SA EXAM
1. Who made the first balloon that could fly in the air
Jacques
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2. Who invented the first bicycle
Baron Daris in 1816
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3. Who discovered the metals sodium and potassium
Sir Humphry Davy
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4. Who invented the compound microscope
Hans and Zacharias Janssen of Netherlands
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5. Who discovered the laws of gravitation
Sir Issac Newton
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6. Who compiled the first logarithmic table
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7. Which Danish physicist and chemist founded electromagnetism in 1820 and was also the first isolate aluminum
Hans Christian Oersted
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8. Which planet was discovered by Sir Willam Herschel in 1781
Uranus
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9. Name the gas discovered in air by Rayleigh and Ramsay
Argon
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10. Who first made the incandescent lamp
Thomas Alva Edision
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11. Who discovered Bahama , Cuba and west indies
Christopher Columbus
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12. Who first isolated sodium
Sir Humpy Davy
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13. Which mountain range did Henry stanely discover
The Mountains of the Moon
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14. Who invented the jet engine
Frank whittle
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15. Name inventor of the snooker
Bowles Chamberlain
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16. Who first isolated the metallic element radium
Pierre and marie curie
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17. Who invented the gasoline driven internal combustion engine
Gottlieb Daimler
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18. Who discovered hydrogen gas
Henry Cavendish
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19. Who made the first Electric motor
Michael Faraday
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20. Who developed the first printing press in 1439
John Guttenbergh
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21. What system of writing was invented by Sir Issac Pitman
Phonographic Shorthand
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22. Who invented paper in China
Tsai Sun
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23. Who is credited with being the inventor of the computer
Charles Babbage
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24. Who first discovered how to measure density
Archimedes
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25. Who invented the electric battery
Albert Einstein
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26. Who invented motion picture projector
Thomas Alva Edision
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27 Who discovered that water was produced by burning hydrogen
Henry Cavendish
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28 Who invented television
John Baird
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29 Who invented diesel engine
Rudolf Diesel
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30 Who invented the battery
Alessandro Volta
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31 Who invented military tank
Ernest Swinton of Britian in 1916
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32 Who invented X-ray tube
Withelem Rontgen
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33 Who invented the magic cube
Erno Rubic
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34 Who propounded the Theory of Relativity
Albert Einstein
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35 Who invented the first simple calculating machine
Blaise Pascal
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36 Who invented shorthand
Sir Issac pitman
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37 Who invented the safety -razor
King C Gillette
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38 Who discovered the solar system
Copernicus
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39 Who built the first submarine and when
David Bushnell in 1776 |
40 Who invented the lightning conductor
Benjamin Franklin
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PA/SA EXAM APTITUDE TEST
RECRUITMENT TO THE CADRE OF SORTING ASSISTANT/POSTAL ASSISTANT .
APTITUTDE TEST- DECEMBER 2009
PART 1 – ENGLISH
( Select the most appropriate word/set of words)
1. The word most nearly opposite in meaning to Valor
a. admonition b. Injustice c. Cowardice d . Generosity
2. The word most nearly similar in meaning to tentative
3. The pair whose relationship is most like the relationship expressed in the pair beggar: beg
a. Medium- Advise b. Mediator: Disagree C. Mercenary : Demand d. Mentor : Guide
Fill in the Blanks ( Question 4-10 )
4. We list confidence in him because he never ------------------his promise.
5. Her true feelings --------------- themselves in her sarcastic asides; only then was her ------------- revealed
6. Technically glass is a mineral and ---------------
a. Water so b. water is so c. so is water d. so water is
7. Rajasthan --------------- a very climate
a. has b. being d. having d. with
8. One of the least effective ways of storing information is leaning
a. how repeat b. repeating c. to repeat d. repeat
9 Many modern architects insist on------------------ materials native to the region
that will blend in to surroundings landscape .
a. use b. to use c. the use d . using
10. By
the time a baby has reached its first birthday , he should , without
the help of an adult ----------------- sit up or even stand up.
a. to be able b. able to c. to be able d. be able to
PART II: MATHEMATICS
11. A jar contains 10 red marbles and 30 green Ones. How many red marbles must be added to the jar so that 60 % of the marbles will be red?
a. 25 b. 30 c. 35 d. 40
12. Driving at 48 miles per hour, how many minutes will take to drive 32miles.
a. 23 b 32 c. 40 d.45
13. If a = 9*8321 and b=9*7321 what is the value of a –
a. 8000 b. 9000 c. 7000 d. 6000
14.
From 1989 to 1990, the number of applicants to a college increased 15 %
to 5000. How many applications were there in 1989?
a. 759 b. 4301 c. 4400 d. 5819
15. Find two numbers whose sum is 27 and product is 182
a. 11, 12 b. 12, 13 c. 13, 14 d. 14, 15
16. How many three- digit numbers are divisible by 7 ?
a. 108 b. 118. c. 128 d.138
17 Liz is now twice as old as Jose but 6 years ago she was 5 times as old as he was. How old Liz now?
a. 10 b.16 c. 20 d. 24
18. What is the sum of the product and quotient of 8 and 8 ?
a. 62 b. 63 c. 64 d . 65
19. Liz solved 24 Maths problems in 15 minutes. At this rate, how many problems can she solve in 40 minutes?
a. 25 b. 64 c. 40 d. 48
20. If the average (arithmetic mean) of 25,31 and x is 37 what is the value of x?
a. .31 b.37 c. 43 d. 55
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