JK Police Constable Mock Test - 3 - JK Police Constable MCQ

According to given information :
Sohan travels 45 km to the north from his sister’s home, then turns left and travel 55 km. He again turns left and travels 34 km. Finally, he turns left again and travels 115 km to reach his house.
The following diagram can be drawn according to given information:

The distance between A and F can be calculated by applying Pythagoras Theorem;
(AF)² = (Vertical Distance between AF)² + (Horizontal distance between AF)²
→ (AF)² = (AB)² + (BF)²
→ (AF)² = (11)² + (60)²
→ (AF)² = 121 + 3600
→ (AF)² = 3721
→ AF = 61
Thus, the shortest distance between his sister’s home and Sohan's house is '61 km' and his house in 'North-East' direction with respect to his starting point.
Hence, the correct answer is "61 km, North-East".

Key Points

• Pashmina is a fine type of cashmere wool.
• All the steps such as combing, spinning, weaving, and finishing are entirely carried out by hand by specialized craft persons to products such as shawls, wraps, throws, scarves, stoles, etc.

• It comes from 4 distinct breeds of the Cashmere goat namely:

  • Changthangi (or Kashmir Pashmina goat) from the Changthang Plateau in Kashmir region.
  • Malra from the Kargil area in the Kashmir region.
  • Chegu from Himachal Pradesh.
  • Chyangara (or Nepalese Pashmina goat) from Nepal.
  • The Tibetan antelope or chiru.

Hence the wild animal used for the business purpose of pashmina shawls is Chiru.

Key Points

• Alt + Tab
  • The keyboard shortcut is most often used to switch between open programs in Microsoft Windows 10.
• Alt + S
  • ​Alt + S is a keyboard shortcut most often used to open the slide show settings in PowerPoint.
• Ctrl + S​
  • ​In Microsoft Word and other word processors, pressing Ctrl + S saves the current document.
• Ctrl + Tab​
  • ​ Ctrl + Tab is a keyboard shortcut most often used to switch between open tabs in a browser.​

Additional Information

Key Points

• Nadir means the lowest point or the bottom. (सबसे निचला बिंदु या तल)
• Zenith means the highest point or the top. (उच्चतम बिंदु या शिखर)
• The antonym of 'nadir' is 'zenith'.
  • Example: After facing many failures, his career reached its nadir but with hard work, he reached the zenith of success.

​Hence, option 2 is the correct answer.
Additional Information

• Talent: A natural skill or ability. (एक प्राकृतिक कौशल या क्षमता)
• Abyss: A deep or seemingly bottomless hole or pit. (गहरा या प्रतीत होने वाला अथाह गड्ढा या गड्ढा)
• Essence: The intrinsic nature or indispensable quality of something. (किसी चीज की आंतरिक प्रकृति या अपरिहार्य गुण)

Given:

The length and breadth of a cuboid is 12 cm and 9 cm respectively. The total surface area of the cuboid is 678 cm2

Formula used:

Total surface area of cuboid = 2(lb + bh + hl)

Calculation:

Length of cuboid = 12 cm

Breadth of cuboid = 9 cm

Total surface area of cuboid = 678 cm²

⇒ 2(lb + bh + hl) = 678 cm²

⇒ 2(12 × 9 + 9h + 12h) = 678 cm²

⇒ 21h = 339 - 108 = 231 cm

h = 11 cm

∴ Height of cuboid is 11 cm.

The correct answer is Dara Shikoh.

• Pari Mahal is located at the top of the Zabrawan mountain range in the city of Srinagar in the south-west of Dal lake.

Key Points

• The architecture depicts the splendid Mughal architecture and patronage of art during Mughal emperor Shah Jahan.
• The Pari Mahal was built by Dara Shikoh.
• It served as a library and adobe for Dara shikoh.
• It was also used as an observatory, used for teaching astrology and astronomy.
• The Pari Mahal has also been used as a top-secret interrogation centre for high-level bureaucrats.

Additional Information

• Mirza Shahab-ud-din Baig Muhammad Khan Khurram’ better known by his regnal name ‘Shah Jahan’ was the fifth Mughal emperor, who reigned from 1628 to 1658.
• The Masjid-i Jahan-Numa commonly known as the Jama Masjid of Delhi is one of the largest mosques in India.
• It was built by Mughal Emperor Shah Jahan between 1644 and 1656 at a cost of 1 million rupees and was inaugurated by an Imam from Bukhara, present-day Uzbekistan.

The logic followed here is :

Hence, "751" is the correct answer.

Given:
Rama walked 12 km/hr instead of 8 km/hr, he would have walked 16 km more.
Formula used:
distance = speed × time
Calculations:
Let, actual distance be x km
⇒ x/8 = x + 16/12
⇒ 12 × x = 8 × (x + 16)
⇒ 12x = 8x + 128
⇒ 12x - 8x = 128
⇒ 4x = 128
⇒ x = 128/4 = 32
∴ The answer is 32 km.
Shortcut Trick
As per the question,
⇒ Speed 1 - speed 2 = More walk (distance)
⇒ 12 km/hr - 8 km/hr = 16 km
⇒ 1km/hr = 4 km
The actual distance = Rama's frist speed × difference ⇒ 8 × 4 =32

Key Points

• The idiom "bone to pick" means having an issue or complaint that needs to be addressed. (कोई समस्या या शिकायत है जिसका समाधान किया जाना आवश्यक है)
  • Example: I've got a bone to pick with you - you've been using my shaver again.
• This phrase is often used to indicate a desire to confront someone about a problem.
• The word "bone" in this context likely comes from the idea of a dog chewing on a bone, which suggests a persistent or nagging issue.
• The correct answer is Option 3.

The erroneous part is 'there was a good idea'.

Key Points

• The given sentence is grammatically incorrect.
• Here, 'it was a good idea' should be used instead of 'there was a good idea'.
• ‘Idea’ in the given sentence is a singular subject and for it, we will use ‘it’ as a singular pronoun and not ‘there’.
• Thus, the correct answer is Option 1.
  

Correct Sentence: We thought it was a good idea to wear snow boots before we stepped out.

Key Points

• The basic input/output system, or BIOS, is the software that a computer's microprocessor runs when it is turned on.
• The terms ROM BIOS, PC BIOS, and System BIOS are also used to refer to BIOS.
• When you turn on your computer, the first program that launches is BIOS, which runs a preliminary set of diagnostic checks (known as POSTs, or Power On Self-Tests) to check for hardware problems. The initial stage in your hardware's boot cycle is called POST.
• The basic input/output system (BIOS) of a computer is a firmware program that is kept in nonvolatile memory such as read-only memory (ROM) or flash memory.

Additional Information

RAM:- One of the key factors affecting the performance of your system is computer random access memory (RAM). RAM provides apps with a place to temporarily store and access data. It saves the data that your computer is now utilizing so that it can be readily accessible.

LAN:- A group of devices connected to one another in a single physical location, such as a building, office, or home, is known as a local area network (LAN).

WAN:- The technology that links your offices, data centers, cloud apps, and cloud storage is known as a wide-area network (WAN). It is known as a wide-area network because it includes numerous locations distributed across a particular geographic area, or perhaps the entire world, rather than just a single building or huge campus.

Logic: Second no. = [(First no. × 9) - 9]

Checking the given options:

(1) 17 : 162 →

​⇒ [(17 × 9) + 9]

​⇒ (153 + 9) = 162

(2) 15 : 126 →

​⇒ [(15 × 9) - 9]

​⇒ (135 - 9) = 126

(3) 27 : 234 →

​⇒ [(27 × 9) - 9]

​⇒ (243 - 9) = 234

(4) 31 : 270 →

​⇒ [(31 × 9) - 9]

​⇒ (279 - 9) = 270

Here, '17 : 162' is different from the rest.

Hence, the correct answer is "Option (1)".

• The organic matter breakdown to produce the mixture of different gases called Biogas and the plant where biogas produced is called as Biogas Plant.
• It is a renewable form of energy and can be produced from raw materials like agriculture waste, manure, municipal waste, plant waste etc.
• Biogas plant produces biogas such as methane (CH₄), carbon dioxide (CO₂), hydrogen sulfide (H₂S), moisture (H₂O) and siloxanes [(R₂SiO)_n].

Additional Information

1. Carbon monoxide (CO) is highly toxic in nature. It combines with hemoglobin present in blood and forms carboxyhemoglobin complex.
2. The carboxyhemoglobin complex is more stable than oxyhemoglobin complex and hence prevents hemoglobin from carrying oxygen to different parts of the body, which causes suffocation and ultimately death.

In option (2): Safte → Feast (means 'festival')

Here, we can see Option (2) is the correct answer as per logic.

Hence, the correct answer is "Option (2)".

Before abrogating article 370, the three-tier structure was not available in Jammu and Kashmir.
Key Points

• But like other parts of the country, now the Panchayati raj three-tier structure will be set up in the territory.
• District Development Council (DDC) will be set up, as per the orders of the Home Minister of India.
• District development Council (DDC), Halqa dalat, and Block Development Council will now constitute the three-tier structure in the union territory.
• The three-tier Panchayati raj system will be operative there now.
• It was not operative earlier.

Key Points

• SRAM memory devices are very much similar, mainly in terms of speed, to the cache memory.
• SRAM stands for Static random-access memory.
• Static random-access memory is a type of random-access memory that uses latching circuitry to store each bit.
• SRAM is volatile memory; data is lost when power is removed.
• The term static differentiates SRAM from DRAM which must be periodically refreshed.

Additional Information

• Dynamic random access memory (DRAM) is a type of semiconductor memory that is typically used for the data or program code needed by a computer processor to function.
• Flash memory, also known as flash storage, is a type of nonvolatile memory that erases data in units called blocks and rewrites data at the byte level.
• EEPROM (electrically erasable programmable read-only memory) is user-modifiable read-only memory (ROM) that can be erased and reprogrammed (written to) repeatedly through the application of higher than normal electrical voltage.

Key Points

• The word "unique" is an absolute term, meaning something is one of a kind.
• ​Never use a comparative or superlative degree (most) with 'unique'.
• Hence, the use of 'most' is inappropriate here and it must be removed and also 'the' must be added before 'unique' to make the sentence grammatically correct.

Hence, the correct answer is: This is the unique thing I have ever seen in my life.
Additional Information
Never use comparatives or superlatives with these adjectives:

• Unique
• Supreme
• Impossible
• Vacuum
• Empty
• Everlasting
• Perfect
• Final
• Last

Key Points

• Dachigam National Park is located in Srinagar, Jammu and Kashmir.
• The name Dachigam stands for "ten villages" in memory of the ten villages that were relocated for the formation of this National Park.
• The park has been a protected area since 1910.
• It was upgraded and declared a National Park in the year 1981.
• The park is best known as the home of the hangul, or Kashmir stag.
• Kashmir stags are rare and critically endangered animals.
• Dachigam national park is also known for its scenic locales.

Additional Information

• The Pakhal Wildlife Sanctuary is a manmade lake located in Telangana.
• Jaldapara National Park is a national park situated in West Bengal.
• Balpakram National Park is a national park situated in Meghalaya.

Shortcut Trick
A number N undergoes a percentage change of x % and then y%,
Net change = (x + y + xy/100) %.
= 80 - 20 - (80 × 20)/100
= 60 - 16 = 44%
∴ The Correct option is 1)
Alternate Method
Formula Used:

1. % Change =

2. X% of 100 = × 100
Calculation:
Let there be 100 units sold each at Rs. 100
Total sales = 100 × 100 = Rs. 10000
According to question
New Price = 100 - 20% of 100 = 80
New sale = 100 + 80% of 100 = 180 units
New Total sale = 180 × 80 = Rs. 14400
Using above formula

⇒ % Change =
⇒ % Change = 44/100 × 100 = 44%
∴ The Correct option is 44 % increase.

Key Points

• Granite is classified as an igneous rock.
• Igneous rocks are formed through the cooling and solidification of magma or lava.
• Granite is known for its coarse-grained texture and is composed mainly of quartz, feldspar, and mica.
• This type of rock is commonly found in the continental crust and is extensively used in construction due to its durability and aesthetic appeal.

Additional Information

• Igneous rocks can be divided into two main types: intrusive (plutonic) and extrusive (volcanic).
• Granite is an example of an intrusive igneous rock, meaning it forms from magma that cools slowly beneath the Earth's surface.
• Other examples of igneous rocks include basalt (extrusive) and gabbro (intrusive).
• Granite's high resistance to weathering makes it a popular choice for monuments, buildings, and countertops.

Key Points

• The Planning Commission was an institution which formulated Five-Year Plans in India.
  • Planning Commission set up in 1950.
  • Planning commission was established based on the recommendation of an advisory planning board under the chairmanship of KC Neogy.
  • Headquarters: Yojana Bhavan, New Delhi.
  • Planning commission is only an advisory body.
  • The concept of planning was based on the Russian model introduced by Joseph Stalin.
  • The Prime Minister is the chairman of the planning commission.
  • Jawaharlal Nehru was the first chairman of the planning commission.
  • Deputy chairman of the planning commission was appointed by the Union Cabinet.
  • Gulzarilal Nanda was the first deputy Chairman of the Planning Commission.
• Narendra Modi government dissolved the Planning Commission in 2014.
• The planning commission was replaced by the newly formed NITI Aayog in 2015.

The correct answer is Non-volatile Storage.

• Magnetic Disk is an example of non-volatile memory that is not directly accessible by the CPU, because it is accessed via the input/output channels.
• A magnetic disk is a circular plate constructed of metal or plastic coated with magnetized material. Both sides of the disk are used and several disks may be stacked on one spindle with read/write heads available on each surface.
• Bits are stored on the magnetized surface in spots along concentric circles called tracks. Tracks are commonly divided into sections called sectors.

The correct answer is "Failure".

Key Points

• The term "Prosperity" refers to a state of being successful, especially in relation to wealth, affluence, or flourishing conditions.
• So, for its antonym, we need to find a word that indicates the opposite meaning.
• "Failure" refers to lack of success or the state of not achieving the intended goal.
• This could refer to many areas, including the areas that prosperity covers (such as wealth and plenty).
• Therefore, it can be taken as the antonym of prosperity as it denotes lack or absence of success.

Hence, the correct answer is "Option 4".

Additional Information

• "Money" - This refers to a type of currency or financial resource.
  • It doesn't convey the opposite of prosperity but is rather a part of prosperity.
• "Gradual" - This term describes a process that happens slowly; in small stages, or degrees.
  • It doesn't represent the opposite of prosperity.
• "Wealth" - This term is synonymous with prosperity, as they both represent having a large amount of valuable material possessions or resources.

Short-cut key to Select entire row in M.S. Excel Worksheet is Shift + Spacebar.
Key Points
This table lists the most frequently used shortcuts in Excel.

Prime Minister Narendra Modi recently called for a video conference summit of leaders of the South Asian Association for Regional Cooperation (SAARC) to discuss a common strategy to tackle COVID-19.
Important Points

• The SAARC is the regional intergovernmental organization and geopolitical union of states in South Asia.
• Its member states are Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan and Sri Lanka.
• It’s headquarter is located in Kathmandu, Nepal.
• The last SAARC Summit was held on 26-27 November in 2014 in Kathmandu.
• The next summit, which was scheduled to take place in November 2016 in Islamabad, was postponed amid tensions between India and Pakistan over the attack on a military camp in Uri.
• India maintained it will not be able to move on SAARC unless Pakistan stopped cross-border terrorism — a demand it still maintains.

In News
The 2024 Nobel Prize in Literature was awarded to South Korean author Han Kang.
Key Points

• She was honoured for her intense poetic prose that confronts historical traumas and exposes the fragility of human life.
• The announcement was made by the Nobel committee at the Royal Swedish Academy of Sciences.
• Han Kang is the first South Korean writer to win the Nobel Prize in Literature.
• She is widely known for her novel The Vegetarian, which was written in three parts.

Additional Information
Career Overview:

• Han Kang began her career in 1993, publishing poems in the magazine Literature and Society.
• Her prose debut was in 1995 with the short story collection Love of Yeosu, followed by several novels and short stories.

Significance of The Vegetarian:

• The Vegetarian explores themes of identity, mental health, and societal expectations, resonating with readers worldwide.
• The novel has been translated into multiple languages and received critical acclaim for its unique narrative style.

• Conventional Energy sources are Natural Gas, Oil, Coal, and Nuclear.
  • Conventional Energy is non- renewable energy sources.
• The sources of energy that have been in use for a long time are called Conventional Source of Energy.
  • Coal, petroleum, natural gas and nuclear energy are considered to be the Conventional Sources of energy.
  • hydel energy, wind energy are considered Non-conventional sources of energy.

Additional Information

• Geothermal Energy:
  • It is the energy that is produced by using the heat from the earth’s interior.
  • Industrial applications of geothermal energy include food dehydration, gold mining etc.
  • Geothermal energy is also used to directly heat individual buildings.
  • Hot springs, lava, and fumaroles are natural examples of geothermal energy.

• Tidal energy is renewable energy harnessed by the rise and fall of ocean tides and currents, also called tidal flows.
• The energy that is generated from the temperature of the heated substance is called thermal energy.
• Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis.

Key Points

• Greenhouse gases are those gaseous constituents of the atmosphere, both natural and anthropogenic, that absorb and emit radiation at specific wavelengths within the spectrum of thermal infrared radiation emitted by the Earth's surface, the atmosphere itself, and by clouds.
• This property causes the greenhouse effect.
• The GHGs are transparent to incoming solar radiation but are opaque to some wavelengths of heat radiated from the Earth.
• So, they trap heat, which leads eventually to a warming of the lower atmosphere. This is called the Greenhouse effect.
• The Primary GHGs are Water vapour, Carbon dioxide, Methane, and Ozone.
• Other GHGs are carbon monoxide, fluorinated gases, chlorofluorocarbons (CFCs), black carbon (soot), and brown carbon.

The correct answer is Custom duties.

Important Points

• The tax imposed on the import and export of commodities is called Custom duties.
• This is a form of foreign trade control and a policy that taxes foreign goods to encourage or protect domestic industry.
• Tariffs may be set (a constant sum per unit of imported goods or a percentage of the price) or variable (the amount varies by price). Import taxation means that consumers are less likely to purchase them because they are more costly.
• An excise tax is an indirect tax on the sale of a particular good or service charged by the Government.
• A VAT (Value-added tax) is a consumption tax that is imposed on a product whenever a value is added at each stage of the supply chain, from production to point of sale.
• Goods and Services Tax(GST) is an Indirect tax on the purchase of goods and services used in India.