General Science Test-3

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General Science Test-3

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Weekly Quiz Competition

Question 1
1 / -0.25

Consider the following statements regarding the High Frequency Active Auroral Research Programme (HAARP):
1. It is an ionospheric research Program.
2. The purpose of HAARP is to investigate the potential for developing ionospheric enhancement technology for radio communications and surveillance.
3. The most prominent instrument at the HAARP station is the Ionospheric Research Instrument (IRI) a high-power radio frequency transmitter facility operating in the High Frequency (HF) band.

Q. Which of the statements given above are correct?

A
1 and 2 only

B
2 and 3 only

C
1 and 3 only

D
1, 2 and 3

Solution

High Frequency Active Auroral Research Programme (HAARP) is an ionspheric research programme and the main purpose is to investigate the potential for developing ionaspheric enhancement technology for radio communications and surveillance.
Question 2
1 / -0.25

Orbital decay, a process of prolonged reduction in the attitude of a Satellite ’s Orbit is caused by which of the following reasons?
1. Atmospheric drag
2. Tides
3. Gravitational pull Correct

A
1 only

B
3 only

C
1 and 3 only

D
1, 2 and 3

Solution

Orbital decay, a process of prolonged reduction in the altitude of a satellite ’s orbit is caused due to atmospheric drag, tides and gravitational pull.
Question 3
1 / -0.25

How do you distinguish between Passive Optical Network (PON) and Gigabit Passive Optical Network (GPON)?
1. PON is a network architecture that brings fiber cabling and signals to the home using a point-to-multipoint scheme that enables a single optical fibre to serve multiple premises.
2. PON standard differs from non-PON standards in that it achieves higher bandwidth and higher efficiency using larger, variablelength packets.
3. GPON offers efficient packaging of user traffic, with frame segmentation allowing higher Quality Of Service (QOS) for delaysensitive voice and video communications traffic.
Q. Which of the statements given above are correct?

A
1 and 2 only

B
2 and 3 only

C
1 and 3 only

D
1, 2 and 3

Solution

GPON standard differs from other passive optical network standards in that it achieves higher bandwidth and higher efficiency using larger variable length packets. GPON offers efficient packaging of user traffic with frame segmentation allowing higher quality of service for delaysensitive voice and video communications traffic. On the other hand, PON is a network architecutre that brings fibre cabling and signals to the home using a point-to-multipoint scheme that enables a single optical fibre to serve multiple premises.
Question 4
1 / -0.25

Recently, scientists have developed a device to near completion like an ipad that could be folded or rolled up repeatedly. What has been used in its development?

A
Laser Fludik Imaging Film

B
Infra-Red Laser Fludine Imaging Film

C
NANO Garffine Imaging Film

D
Electro Fluidic Imaging Film

Solution

The device has been developed to near completion using a bistable 'electrofluidic imaging film 'for e –paper. The screen of proposed flexible devices would need to be able to display text and images, yet be flexible and tough enough.
Question 5
1 / -0.25

Which of the following statements is correct regarding the SKA telescope?
1. At present, it has 36 antennas with diameter of 12 meters each and it is placed at the remote Murchison Radio Astronomy Observatory
2. The radio waves generated from this telescope can provide details of the cosmos far away and the gases that resulted in the formation of any particular star.

Q. Select the correct answer using the codes given below:

A
1 only

B
Both 1 and 2

C
Neither 1 nor 2

D
2 only
Solution
The correct answer is D: 2 only .
Statement 1 is incorrect: The SKA (Square Kilometre Array) telescope is an international project aiming to build the world 's largest radio telescope, which will consist of thousands of antennas spread across various locations, not just 36 antennas with a 12-meter diameter. The specific detail about 36 antennas likely refers to the Australian SKA Pathfinder (ASKAP), but it is separate from the SKA project itself.
Statement 2 is correct: The SKA telescope is designed to capture radio waves from deep space, providing detailed information about the cosmos, including the gases involved in the formation of stars and other celestial bodies.
Therefore, the correct choice is D: 2 only .
Question 6
1 / -0.25

Consider the following statements:
1. Megha –Tropiques is an advanced weather and climate research satellite.
2. Megha –Tropiques is a joint atmospheric satellite mission of India (ISRO) and Russia (Roscosmos).
3. Megha –Tropiques has been launched by ISRO from Sriharikota.
Q. Which of the statements given above is/are not true?

A
1 only

B
1 and 3

C
3 only

D
2 only

Solution

Statement 2 is not correct: Megha –Tropiques is a joint atmospheric satellite mission of India (ISRO) and Russia (Roscosmos).
Megha-Tropiques is a joint satellite mission between the Indian Space Research Organisation (ISRO) and the French space agency, CNES. The satellite was launched on October 12, 2011 to study the water cycle and energy exchanges in the tropics. The mission 's main objective is to understand the life cycle of convective systems that influence tropical weather and climate.
Question 7
1 / -0.25

Consider the following statements:
1. Nirbhaya is a subsonic cruise missile being developed by DRDO.
2. The air version of Brahmos has been successfully test-fired recently.
3. Brahmos-II will be hypersonic cruise missile with target range of more than 300 km.
Q. Which of the above statements is/are not true?

A
1 and 2 only

B
none of these

C
all of the above

D
2 and 3 only
Solution
The correct answer is D: 2 and 3 only .
Statement 1 is true: Nirbhaya is indeed a subsonic cruise missile being developed by the Defence Research and Development Organisation (DRDO) of India.
Statement 2 is not true: As of now, the air version of BrahMos has been successfully test-fired, but it 's essential to verify the context of "recently,"as successful tests occur periodically. If the question refers to a specific recent test, it could be deemed inaccurate if no recent test was conducted.
Statement 3 is not true: BrahMos-II is intended to be a hypersonic cruise missile, but the target range is not specified to be over 300 km; instead, it is expected to exceed 600 km.
Given that Statements 2 and 3 are not true, the correct choice is D: 2 and 3 only .
Question 8
1 / -0.25

RAM (Random Access Memory) is the primary memory used in a computer. RAMs are divided into two categories as static RAM (SRAM) and Dynamic RAM (DRAM). What is the difference between static and Dynamic RAM?
1. DRAMs are less expensive and slower than SRAMs.
2. DRAM requires to be refreshed periodically as opposed to the SRAM.
3. DRAM has higher bit density and lower power consumption.
Q. Which of the above statements are correct?

A
1 only

B
1 and 2 only

C
2 and 3 only

D
all the above

Solution

DRAMs are less expensive and slower than SRAMs. DRAM requires to be refreshed periodically as opposed to the SRAM. DRAM has higher bit density and lower power consumption.
Question 9
1 / -0.25

Indian Space Research Organisation (ISRO) is creating a GEO Imaging Satellite (GISAT) which it plans to launch. Consider the following statements about it:
1. The satellite will carry a GEO Imager with multi-spectral, multi-resolution imaging instruments.
2. Gisat will provide near real time pictures of large areas of the country, under cloud free conditions, at frequent intervals.

A
1 only

B
2 only

C
Both 1 and 2

D
None of these

Solution

The ISRO is designing a Geo imaging satellite (Gisat) which is planned to be launched during 2016 –17. It will carry a GEO imager with multi –spectral (Visible, near –infra –red and thermal) and multiresolution (50m to 1.5 km) imaging instruments. It will acquire images of a geographical strip and also provide near real time images of large areas of the country.
Question 10
1 / -0.25

Consider the following statements about Dhanush missile and select the correct answer:
1. Dhanush missile is an indigenously developed naval version of the Prithvi short range ballistic missile.
2. It is a single stage missile and was developed by the DRDO and it uses liquid propellant.
3. It has a strike range of up to 350 km and can carry 500 kg of conventional warheads only.

A
1 and 2 only

B
1 and 3 only

C
2 and 3 only

D
all the above

Solution

Dhanush missile is an indigenously developed naval version of the Prithvi short range ballistic missile. It is a single stage missile and was developed by the DRDO and it uses liquid propellant. It was successfully test-fired on 13 November, 2013.

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General Science Test-3

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General Science Test-3

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Question 1

1 and 2 only

2 and 3 only

1 and 3 only

1, 2 and 3

Solution

Question 2

1 only

3 only

1 and 3 only

1, 2 and 3

Solution

Question 3

1 and 2 only

2 and 3 only

1 and 3 only

1, 2 and 3

Solution

Question 4

Laser Fludik Imaging Film

Infra-Red Laser Fludine Imaging Film

NANO Garffine Imaging Film

Electro Fluidic Imaging Film

Solution

Question 5

1 only

Both 1 and 2

Neither 1 nor 2

2 only

Solution

Question 6

1 only

1 and 3

3 only

2 only

Solution

Question 7

1 and 2 only

none of these

all of the above

2 and 3 only

Solution

Question 8

1 only

1 and 2 only

2 and 3 only

all the above

Solution

Question 9

1 only

2 only

Both 1 and 2

None of these

Solution

Question 10

1 and 2 only

1 and 3 only

2 and 3 only

all the above

Solution

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