← Assistant & UDC
Past Questions
If M.P = Rs.500, S.P =Rs.400, then the discount percentage is
A)
10%
B)
20%
C)
30%
D)
none of these
Option B is correct: 20%.
If x = 2 + √2 and y= 2 - √2 , then the value of (x^2 + y^2)is
A)
12
B)
14
C)
6
D)
18
Option A is correct: 12.
The name ‘sorrow of Bihar’ is given to river:
A)
Jaldak
B)
Kosi
C)
Gandak
D)
Tista
Option B is correct: Kosi.
Lewis Hamilton who has clinched a sixth Formula 1 world championship title at the US Grand Prix 2019 belongs to which of the following countries?
A)
Germany
B)
USA
C)
Canada
D)
UK
Option D is correct: UK.
Which of the following countries has banned Mask Protestors?
A)
Hong Kong
B)
China
C)
Chile
D)
Bolivia
Option A is correct: Hong Kong.
A wire is looped in the form of a circle of radius 7cm. It is rebent into a square form. Determine the length of the side of the square
A)
22cm
B)
44cm
C)
11cm
D)
33cm
Option C is correct: 11cm.
Writer of the book “The Precepts of Jesus, the guide to Peace and Happiness”.
A)
Raja Ram Mohan Roy
B)
Radhakanta Dev
C)
Sir William Jones
D)
Charles Wilkins
Option A is correct: Raja Ram Mohan Roy.
Who is present speaker of the Lok Sabha?
A)
Venkaiah Naidu
B)
Om Birla
C)
Harivansh Narayan Singh
D)
Sumitra Mahajan
Option B is correct: Om Birla.
Which country ranks lowest at the newly released Women, Peace, and Security Index report 2019?
A)
Syria
B)
Yemen
C)
Lebanon
D)
Afghanistan
Option D is correct: Afghanistan.
Full form of SDRs.
A)
Software Define Radio
B)
Simple Divide Rules
C)
Sub-Divisional Registrars
D)
Special Drawing Rights
Option D is correct: Special Drawing Rights.
Who is working on writing a much hyped book titled “How to Avoid a Climate Disaster”?
A)
Bill Gates
B)
Mark Zuckerberg
C)
Jack Ma
D)
Sundar Pichai
Option A is correct: Bill Gates.
Which country has recently objected the inclusion of kaalapani as part of India?
A)
Nepal
B)
Bhutan
C)
Pakistan
D)
Sri Lanka
Option A is correct: Nepal.
Who is the Author of the book “The Paradoxical Prime Minister”?
A)
Arundhati Roy
B)
GhulamNabi Azad
C)
Kamal Nath
D)
Shashi Tharoor
Option D is correct: Shashi Tharoor.
The chief minister of which state has recently biked 122 km to promote adventure tourism in his state?
A)
Andra Pradesh
B)
Karnataka
C)
Arunachal Pradesh
D)
Sikkim
Option C is correct: Arunachal Pradesh.
A device that converts digital signal to analog signal is-
A)
Bridge
B)
Repeater
C)
Hub
D)
Modem
A Modem (short for Modulator-Demodulator) is a hardware device that performs two primary functions: Modulation and Demodulation. Modulation is the process of converting digital signals (from a computer) into analog signals (suitable for transmission over telephone lines or cables). Demodulation is the reverse process, converting incoming analog signals back into digital signals.
Why other options are incorrect:
- a. Bridge: A network device that connects two different local area networks (LANs) or two segments of the same LAN at the Data Link Layer (Layer 2).
- b. Repeater: A device that receives a signal and retransmits it at a higher level or higher power so that the signal can cover longer distances without degradation; it does not change the signal type (digital to analog).
- c. Hub: A basic networking device that connects multiple computers or devices in a LAN, acting as a common connection point to broadcast data to all connected ports.
Who has chosen for the 27th edition of ‘Vyas Samman, 2017’?
A)
Vishwanathan Tripathi
B)
Surinder Verma
C)
Mannu Bhandari
D)
Mamta Kalia
The Vyas Samman is a prestigious literary award presented annually by the K.K. Birla Foundation for the best Hindi literary work published in the preceding ten years. For the 27th edition of the Vyas Samman (awarded in 2017), the honor was conferred upon Vishwanathan Tripathi for his work 'Hindi Sahitya ka Itihas' (History of Hindi Literature).
Analysis of other options:
- Surinder Verma, Mannu Bhandari, and Mamta Kalia are renowned Hindi writers, but they were not the recipients of the 27th Vyas Samman in 2017.
A scooter was bought at Rs 42000. Its value depreciated at the rate of 10% per annum. The value of the scooter after 2 years is –
A)
Rs 35200
B)
Rs 34020
C)
Rs 34014
D)
Rs 34000
To find the value of the scooter after depreciation, we use the formula for reducing balance depreciation: V = P(1 - r/100)^n, where P is the principal amount, r is the rate of depreciation, and n is the number of years.
Given:
Principal (P) = Rs 42,000
Rate (r) = 10% per annum
Time (n) = 2 years
Step-by-step calculation:
1. Value after 1st year = 42,000 - (10% of 42,000) = 42,000 - 4,200 = Rs 37,800.
2. Value after 2nd year = 37,800 - (10% of 37,800) = 37,800 - 3,780 = Rs 34,020.
Alternatively, using the formula:
Value = 42,000 * (1 - 10/100)^2
Value = 42,000 * (0.9)^2
Value = 42,000 * 0.81
Value = 34,020.
Comparing this result with the options:
- Option (a) Rs 35200 is incorrect.
- Option (b) Rs 34020 is correct.
- Option (c) Rs 34014 is incorrect.
- Option (d) Rs 34000 is incorrect.
The ‘Land of Midnight Sun’ is:
A)
New York
B)
Norway
C)
Korea
D)
London
The 'Land of the Midnight Sun' refers to a natural phenomenon known as the polar day, where the sun remains visible at the local midnight. This occurs in regions north of the Arctic Circle (and south of the Antarctic Circle) during their respective summer months. Norway is famously known by this moniker because a significant portion of its territory lies beyond the Arctic Circle, allowing residents in the northern regions to experience continuous sunlight for several weeks during the summer.
Analysis of other options:
- a. New York: Located in the United States, far south of the Arctic Circle; it experiences standard day/night cycles.
- c. Korea: Located in East Asia, well south of the Arctic Circle.
- d. London: Located in the United Kingdom; while it is in the north, it is not far enough north to experience the midnight sun phenomenon.
Which famous Indian sportsperson is the author of ‘Driven’?
A)
Kapil Dev
B)
Mary Kom
C)
Mikha Singh
D)
Virat Kohli
The question asks which famous Indian sportsperson is the 'author' of the book 'Driven'. Based on the provided context and general knowledge, 'Driven: The Virat Kohli Story' is a biography of Virat Kohli. While the book was technically written by sports journalist Vijay Lokapally, in the context of competitive exams, when a biography is titled '[Title]: The [Person] Story', the question is typically asking which sportsperson the book is about or associated with. Among the given options, Virat Kohli is the subject of the book 'Driven'. Options a (Kapil Dev), b (Mary Kom), and c (Milkha Singh) are not associated with a book titled 'Driven'. Therefore, Virat Kohli is the correct answer in the context of the options provided.
A bus runs at 54 km per hour. The distance covered by the bus in 12 seconds is
A)
175 m
B)
180 m
C)
190 m
D)
193 m
To find the distance covered by the bus, we use the formula: Distance = Speed × Time.
Step 1: Convert the speed from kilometers per hour (km/h) to meters per second (m/s) to match the time unit (seconds).
Speed = 54 km/h.
To convert km/h to m/s, multiply by 5/18:
Speed = 54 × (5/18) = 3 × 5 = 15 m/s.
Step 2: Calculate the distance covered in 12 seconds.
Distance = Speed × Time
Distance = 15 m/s × 12 s = 180 meters.
Therefore, the distance covered by the bus is 180 m. Option (b) is correct, while options (a), (c), and (d) are mathematically incorrect based on the given parameters.
Who is the author of ‘Savun Hampuar: The Mizoram Football Story’?
A)
John Zothansanga
B)
Jeje Lalpekhlua
C)
Rochungnunga
D)
Lalnghinglova Hmar
Based on the provided reference materials, 'Savun Hampuar: The Mizoram Football Story' was written by John Zothansanga, who is also a sports columnist for Vanglaini. The reference from ZoFooty.com explicitly states 'John Zothansanga ziah Savun Hampuar: The Mizoram Football Story', and the Quizlet flashcards for Mizo History & Culture confirm that the author of this specific book is John Zothansanga. Other options are incorrect: Lalnghinglova Hmar (Option d) was the MFA honorary secretary who released the book, but he is not the author.
The 18th Hornbill Festival 2017 has started in which state?
A)
Manipur
B)
Nagaland
C)
Sikkim
D)
Arunachal Pradesh
The selected option matches the established historical, constitutional, economic, geographical, or Mizoram-specific fact.
The total surface area of a solid hemisphere is 462cm2. Then its radius is
A)
14cm
B)
3cm
C)
7cm
D)
35cm
1. Identify the formula for the Total Surface Area (TSA) of a solid hemisphere. A solid hemisphere consists of a curved surface area (2πr²) and a flat circular base (πr²). Therefore, TSA = 3πr².
2. Given: TSA = 462 cm².
3. Set up the equation: 3πr² = 462.
4. Substitute the value of π ≈ 22/7: 3 * (22/7) * r² = 462.
5. Simplify the equation: (66/7) * r² = 462.
6. Isolate r²: r² = (462 * 7) / 66.
7. Calculate: 462 divided by 66 is 7. So, r² = 7 * 7 = 49.
8. Find the square root: r = √49 = 7 cm.
Verification of options:
- Option (a) 14cm: TSA = 3 * (22/7) * 14 * 14 = 1848 cm² (Incorrect)
- Option (b) 3cm: TSA = 3 * (22/7) * 3 * 3 ≈ 84.85 cm² (Incorrect)
- Option (c) 7cm: TSA = 3 * (22/7) * 7 * 7 = 3 * 22 * 7 = 462 cm² (Correct)
- Option (d) 35cm: TSA = 3 * (22/7) * 35 * 35 = 11550 cm² (Incorrect)
Who has been named ‘Person of the Year for 2017’ by the Time Magazine?
A)
The Whistleblowers
B)
The Protesters
C)
The Dreamers
D)
The silence breakers
In December 2017, Time Magazine named 'The Silence Breakers' as the Person of the Year. This title was given to the individuals and groups who spoke out against sexual harassment and abuse, sparking the global #MeToo movement. The 'Silence Breakers' included women and men from various fields—including politics, entertainment, and the workplace—who broke their silence to expose systemic abuse.
Analysis of other options:
- 'The Whistleblowers' is a general term for people who expose secretive information, but they were not the collective title for 2017.
- 'The Protesters' is too generic and does not refer to a specific Time Person of the Year designation for 2017.
- 'The Dreamers' refers to undocumented immigrants brought to the US as children, who were a major news topic in 2017, but they were not named Person of the Year.
The radius of the wheel of a bus is 70 cm. The distance covered by the bus wheel in one revolution is
A)
440 cm
B)
442 cm
C)
445 cm
D)
448 cm
To find the distance covered by a wheel in one revolution, we need to calculate the circumference of the circle formed by the wheel.
1. **Given Data**:
Radius (r) = 70 cm
2. **Formula**:
The distance covered in one revolution is equal to the circumference of the circle.
Circumference (C) = 2πr
3. **Calculation**:
Using π ≈ 22/7:
C = 2 × (22/7) × 70
C = 2 × 22 × (70/7)
C = 2 × 22 × 10
C = 44 × 10
C = 440 cm
Therefore, the distance covered by the bus wheel in one revolution is 440 cm. Options b, c, and d are incorrect as they do not match the mathematical result of the circumference formula.