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Past Questions — 2020
Ö10 × Ö15 is equal to:
A)
5Ö6
B)
6Ö5
C)
Ö25
D)
10Ö3
Use the property of square roots: √10 × √15 = √(10×15) = √150 = √(25×6) = 5√6. So the correct mathematical result is 5√6, which corresponds to option (a). The listed option (b) 6√5 is not equal to √150. Therefore, the correct option is (a).
If the common difference of an AP is 3, then what is a14 – a8 ?
A)
6
B)
3
C)
18
D)
20
In an arithmetic progression, the nth term is a_n = a + (n-1)d. So,
a14 − a8 = [a + 13d] − [a + 7d] = 6d.
Given common difference d = 3,
6d = 6 × 3 = 18.
So the correct answer is 18. Option (a) 6, (b) 3, and (d) 20 are incorrect because the difference between the 14th and 8th terms depends on 6 common differences, not just one.
Which country’s king Carl XVI Gustaf and Queen Silva visited India on December 2019?
A)
Denmark
B)
Norway
C)
Poland
D)
Sweden
Carl XVI Gustaf and Queen Silvia are the King and Queen of Sweden. In December 2019, they visited India. Therefore, the correct answer is Sweden. The other options are incorrect because Denmark is ruled by King Frederik X/Queen Margrethe II (at that time), Norway by King Harald V, and Poland is a republic with no king or queen.
Name the state which has been ranked first among 18 large states in the first ever ranking of states on their capacity to deliver justice to citizens?
A)
Kerala
B)
Tamil Nadu
C)
Maharashtra
D)
Haryana
The first-ever ranking of states on their capacity to deliver justice to citizens placed Kerala at the top among the 18 large states. Hence, the correct answer is Kerala. The other options—Tamil Nadu, Maharashtra, and Haryana—were not ranked first in this specific index.
What is the full form of RADAR?
A)
Radio Device and Ranging
B)
Region Device & Ranging
C)
Radio Detecting and Ranging
D)
Radio Detection and Ranging
RADAR is an acronym for Radio Detection and Ranging. It refers to a system that uses radio waves to detect objects and determine their distance, direction, or speed. The other options are incorrect because they use wrong words such as Device, Region, or Detecting instead of the standard term Detection.
The printed out from a computer is called:
A)
Hard copy
B)
Soft copy
C)
Paper
D)
Floppy
A printed output from a computer on paper is called a hard copy. A soft copy is an electronic version seen on a screen. 'Paper' is only the medium, and 'floppy' is a storage device, not printed output.
Who has been named as the Time’s Magazine Person of the Year 2019?
A)
Abiy Ahmed
B)
Creta Thunberg
C)
Priyanka Chopra
D)
Abhijit Banerjee
Time magazine named Greta Thunberg as its Person of the Year 2019. She was chosen for her global influence in raising awareness about climate change. Among the options, 'Creta Thunberg' is a misspelling of Greta Thunberg, so option (b) is correct. Abiy Ahmed was Person of the Year 2019 for The Economist, not Time; Priyanka Chopra and Abhijit Banerjee were not Time’s Person of the Year 2019.
With what game is ‘Ashes’ associated?
A)
Football
B)
Hockey
C)
Cricket
D)
Tennis
‘The Ashes’ is the famous Test cricket series played between England and Australia. It is not associated with football, hockey, or tennis. Therefore, the correct answer is Cricket.
Lalsangliana,The Best male Athletes in the Mizoram State Games, 2019 belongs to which constituency?
A)
Aizawl East I
B)
Aizawl South II
C)
Aizawl South I
D)
Aizawl West I
Lalsangliana, who was awarded the Best Male Athlete in the Mizoram State Games 2019, belongs to Aizawl South I. Therefore, option (c) is correct. The other constituencies listed do not match his constituency.
What is India’s rank in Human Development Index-2019?
A)
130
B)
88
C)
129
D)
98
According to the UNDP Human Development Report 2019, India’s Human Development Index (HDI) rank was 129. Therefore, option (c) is correct. The other options do not match the official 2019 ranking.
Who is the inventor of World Wide Web?
A)
Ted Nelson
B)
Mike Sendall
C)
Bill Gates
D)
Tim Berners
The World Wide Web was invented by Tim Berners-Lee in 1989–1991 at CERN. Among the given options, 'Tim Berners' refers to Tim Berners-Lee. Ted Nelson proposed hypertext concepts, Mike Sendall was not the inventor of the Web, and Bill Gates founded Microsoft but did not invent the World Wide Web.
Who invented electric Generator?
A)
Graham Bell
B)
Michael Faraday
C)
Alfred Nobel
D)
Thomas Alva Edison
Michael Faraday is credited with inventing the electric generator (dynamo) by demonstrating electromagnetic induction in 1831. Graham Bell invented the telephone, Alfred Nobel invented dynamite, and Thomas Alva Edison is known for the electric bulb and many other inventions, not the first electric generator.
You paid 424 for a pair of shoes worth 400. What is the rate of ST charged?
A)
4%
B)
5%
C)
6%
D)
8%
Marked price = 400 and amount paid = 424. So ST charged = 424 - 400 = 24. Rate of ST = (24/400) × 100 = 6%. Hence, the correct option is (c). The other options do not match the computed tax rate.
The Gathering Storm is written by:
A)
Winston Churchill
B)
George Washington
C)
Voltaire
D)
Rolland
The Gathering Storm is the first volume of Winston Churchill’s famous six-volume memoir series, The Second World War. George Washington, Voltaire, and Rolland did not write this book.
What was the theme of World AIDS Day 2019?
A)
One world, one hope
B)
Getting to Zero
C)
Stop AIDS-Keep the promise
D)
Communities make the differences
World AIDS Day 2019 was observed with the theme "Communities make the difference". This theme highlighted the crucial role of communities in preventing HIV, supporting people living with HIV, and ensuring access to treatment and care. The other options refer to themes used in different years, not 2019.
The diameter of the wheel of a car is 80 cm. In 25 full revolutions of the wheel, the car will move
A)
6280cm
B)
20096 cm
C)
5024 cm
D)
1256 cm
Distance moved in one revolution = circumference of the wheel = πd = π × 80 = 80π cm. For 25 revolutions, distance = 25 × 80π = 2000π cm. Using π = 3.14, distance = 2000 × 3.14 = 6280 cm. However, among the given options, 6280 cm is option (a). If the intended answer uses π = 22/7, then distance = 2000 × 22/7 = 6285.71 cm, still not matching option (c). So the options appear inconsistent with the calculation. The nearest standard correct value is 6280 cm, option (a).
PDF stands for:
A)
Portable Document File
B)
Portable Data Format
C)
Portable Document Format
D)
Portable Digital File
PDF is the standard abbreviation for Portable Document Format. It is a file format developed by Adobe for presenting documents independent of software, hardware, or operating system. The other options are incorrect because 'Portable Document File', 'Portable Data Format', and 'Portable Digital File' are not the full form of PDF.
Which state has become the 4th state to have the Inner Line Permit (ILP) regime after Arunachal Pradesh, Nagaland and Mizoram?
A)
Meghalaya
B)
Tripura
C)
Manipur
D)
Assam
Manipur became the 4th state to have the Inner Line Permit (ILP) regime, after Arunachal Pradesh, Nagaland and Mizoram. The ILP system was extended to Manipur in 2019. The other options are incorrect because Meghalaya, Tripura, and Assam do not have the ILP regime.
Which key combination is used to minimize all open windows and displays in the screen?
A)
Alt + M
B)
Window key + D
C)
Shift + M
D)
Ctrl + D
The shortcut Windows key + D shows the desktop by minimizing all open windows. This is the standard Windows shortcut for minimizing all windows and displaying the screen/desktop. The other options are not used for this function: Alt + M, Shift + M, and Ctrl + D do not minimize all windows.
Who invented Bifocal Lens?
A)
Alfred Nobel
B)
Thomas Alva Edison
C)
Benjamin Franklin
D)
Rudolf Diesel
The bifocal lens is attributed to Benjamin Franklin, who invented it to help people see both near and far distances without changing spectacles. Alfred Nobel invented dynamite, Thomas Alva Edison is known for the electric bulb and many inventions, and Rudolf Diesel invented the diesel engine.
Monitor of a computer is:
A)
Input device
B)
Output device
C)
Input/Output device
D)
None of these
A monitor displays the processed information from the computer to the user, so it is an output device. Input devices send data to the computer, which a monitor does not do. Therefore, option (b) is correct.
The roots of the equation x2+ px + q = 0 are equal if :
A)
p2 = 4q
B)
p2 = - 4q
C)
p2 = 2q
D)
p2 = - 2q
For the quadratic equation x² + px + q = 0, the roots are equal when the discriminant is zero. The discriminant is b² - 4ac = p² - 4(1)(q) = p² - 4q. Setting this equal to 0 gives p² = 4q. Hence, option (a) is correct. The other options do not satisfy the zero-discriminant condition.
Which state has approved the Disha Bill 2019 paving the way for awarding the death penalty for the offences of rape and gang rape?
A)
Gujarat
B)
Bihar
C)
Andhra Pradesh
D)
Karnataka
The Disha Bill 2019 was approved by Andhra Pradesh to provide for stringent punishment, including the death penalty in cases of rape and gang rape. Therefore, the correct answer is Andhra Pradesh. The other options—Gujarat, Bihar, and Karnataka—did not approve this specific bill.
Aizawl East I MLA Constituency has topped the medal tally in the Mizoram State Games, 2019. The Medals won by Aizawl E-I Constituency is:
A)
30 Gold, 20 Silver, 17 Bronze
B)
25 Gold, 18 Silver, 16 bronze
C)
21 Gold, 10 silver, 18 Bronze
D)
17 Gold, 18 silver, 23 bronze.
The Mizoram State Games 2019 was a significant sporting event organized to promote athletics and sportsmanship across different constituencies in the state. According to the official records and results of the Mizoram State Games 2019, the Aizawl East-I MLA Constituency emerged as the overall champion by topping the medal tally. The specific medal count achieved by Aizawl East-I was 30 Gold, 20 Silver, and 17 Bronze medals. Options b, c, and d provide incorrect counts that do not align with the official final standings of the event.
Elisian Medai is associated with which Sports?
A)
Hockey
B)
Badminton
C)
Boxing
D)
Athletics
Elisian Medai is associated with boxing. Among the given options, he is known for boxing achievements, not hockey, badminton, or athletics.
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