BSF Sub Inspector (SI) Mock Test - 10 - BSF SI/ASI MCQ

Since A, B and C are the angles of a Δ,
∴ A + B + C = 180° .................... (1)
According to question,
A – B = 15° ;
⇒ A = B + 15°...................(2)
B – C = 30°;
⇒ B = C + 30°;....................(3)
Put the value of B from equation (2) in Equation (1), we will get
∴ A = B + 15°
A = C + 30° + 15°
A = C + 45° ......................(4)
From a equation,
∴ A + B + C = 180°
⇒ (C + 45°) + (C + 30°) + C = 180°
⇒ 3C + 45° + 30° = 180°
⇒ 3C = 180° – 75° = 105°
⇒ C = 35° ...........................(5)
From equation (4)
A = C + 45°
Put the value of C from equation (5) , we will get
∴ ∠A = 35° + 45° = 80°.

We know that: 
LCM is the least common multiple of the given numbers whereas HCF is the highest common factor of those numbers.
Then, LCM is the multiplication of one common factor of the numbers and the other different factors of the numbers.
Write the LCM = 120 into factored form, that is
120 = 2 × 2 × 2 × 3 × 5
= 4(2 × 3 × 5)
⇒ 4 is the common factor of the numbers.
So, the HCF of three numbers is a multiple of 4.
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, ...
Therefore, 35 is not the multiple of 4, then 35 cannot be their HCF.

When his speed becomes 3/4th, his time would increase by 1/3rd. Thus, the normal time = 7.5 hrs.
(since increased time = 2.5 hrs).

80 men × 40 = 50 women × 40
80 men = 50 women
1 man : 1 woman = 5 : 8

Hence, Option D is correct.

HCF = 12
Numbers = 12x and 12y
where x and y are prime to each other.
∴ 12x × 12y = 2160

= 15 = 3 × 5, 1 × 15
Possible pairs = (36, 60) and (12, 180)
Hence , Number of such possible pairs is 2.

Hence, Option B is correct.

Let AB be the building and the man is standing at A.

When the car is 200m away from the building, the angle of depression is 60°

tan 60° = BD/AB = √3

⇒ 200/AB = √3

⇒ AB = 115.47 m

⇒ tan30° =BC/AB = x/115.47 = 1/√3

⇒ x = 66.67

Now, the car travels distance CD in 8 seconds

 CD = BD – BC = 200 – 66.67 = 133.33 m

 Speed = 133.33/8 = 16.67 m/s

Hence, Option B is correct.

d = -4, n = 7, a(n) = 4
a(n) = a + (n – 1) x d
a + (7 – 1) x (-4) = 4
a + 6 x (-4) = 4
a – 24 = 4
a = 4 + 24
a = 28

The numeric value of the letters (considering A to be 1 and Z to be 26) is added and simplified to obtain a single digit.

For RAM, the numeric value of R, A and M is 18, 1 and 13 respectively. Their sum is 32, Now 32 is further simplified to obtain a single digit by adding 3 and 2, which gives us 5 as the final value.
Similarly for GUI, the numeric value of G,U and I is 7, 21 and 9 respectively. Their sum is 37, which is simplified as 3 + 7 = 10 => 1 + 0 = 1.
Similar process will be done to obtain the code for SAP, the numeric value of S, A and P is 19, 1 and 16 respectively. Their sum is 36, which is simplified as 3 + 6 = 9.
So, the code for SAP is 9.
Hence option (B) is correct.

8 × 39 + 13 × 43 = 871
Since the 8th number came twice, it is added two times.
So the answer = 871 – 20 × 41 = 51
Hence, Option A is correct.

• Pair 1 is correctly matched: Non-violence (Ahimsa) is a core principle of Jainism, strongly associated with Mahavira.
• Pair 2 is correctly matched: The Eightfold Path is a fundamental teaching of Buddhism, introduced by Gautama Buddha as a means to end suffering.
• Pair 3 is incorrectly matched: Discarding clothes is associated with Mahavira and the Digambara sect of Jainism, not Chandragupta Maurya.

The correct answer is 'An ornament worn in front of turban'.

Key Points

• The Sarpech also known as an aigrette is an ornament worn in front of a turban.
• The turban ornament was worn by significant Hindu, Sikh, and Muslim princes.
• Sar means "head" or "front" and pech means "screw", giving the word "sarpech".
• The literal meaning is "that which is screwed onto the front (of the turban)".

Important Points

The Correct Answer  is A: 1 Only

Explanation for the Correct Answer:
The Bhimbetka rock shelters are an archaeological site in central India that spans the prehistoric Paleolithic and Mesolithic periods, as well as the historic period. It exhibits the earliest traces of human life on the Indian subcontinent and evidence of Stone Age habitation starting at the site in Acheulian times.
1. Evidence of Use of Tools and Implements:

• Bhimbetka caves indeed demonstrate the continuity of human evolution from the Lower Paleolithic period to the Mesolithic period to the Chalcolithic period. This is primarily because these caves contain a rich collection of archaeological findings.
• The site has yielded tools and implements from all these periods, providing concrete evidence of human evolution and progress in tool-making techniques and survival strategies.
• The artifacts found here include tools from the Old Stone Age (Lower Palaeolithic), tools from the Middle Stone Age (Mesolithic), as well as tools from the New Stone Age (Chalcolithic).
• This shows a clear progression and continuity of human activities and evolution over a long period of time, which is why statement 1 is correct.

2. Presence of Shankhalipi Inscriptions:

• While the Bhimbetka caves do contain ancient inscriptions, the presence of "Shankhalipi" inscriptions specifically is not a significant factor in demonstrating the continuity of human evolution from the Lower Paleolithic period to the Mesolithic period to the Chalcolithic period.
• Shankhalipi, also known as shell-script, is a unique and lesser-known script found in India, and it is not associated with the Paleolithic, Mesolithic, or Chalcolithic periods.
• Therefore, the presence of Shankhalipi inscriptions in the Bhimbetka caves does not directly support the evidence of continuity of human evolution over these periods. This is why statement 2 is not correct.

So, the correct answer to the question is option A: 1 only.

The correct answer is Sutlej.

Key Points

• The Sutlej river originates from Lake Langa with an elevation above 15000 feet located at the southwestern Tibet.

Additional InformationSatluj River:

• The Satluj rises from the Manasarovar-Rakas Lakes in western Tibet at a height of 4,570 m within 80 km of the source of the Indus.
• Like the Indus, it takes a north-westerly course upto the Shipki La on the Tibet-Himachal Pradesh boundary.
• It cuts deep gorges where it pierces the Great Himalaya and the other Himalayan ranges.
• Before entering the Punjab plain, it cuts a gorge in Naina Devi Dhar, where the famous Bhakra dam has been constructed.
• After entering the plain at Rupnagar (Ropar), it turns westwards and is joined by the Beas at Harike.

Beas River:

• The Beas originates near the Rohtang Pass, at a height of 4,062 m above sea level, on the southern end of the Pir Panjal Range, close to the source of the Ravi.
• It crosses the Dhaola Dhar range and it takes a south-westerly direction and meets the Satluj river at Harike in Punjab.
• It is a comparatively small river which is only 460 km long but lies entirely within the Indian territory.

Jhelum River

• The Jhelum has its source in a spring at Verinag in the south-eastern part of the Kashmir Valley.
• It flows northwards into Wular Lake (north-western part of Kashmir Valley).
• From Wular Lake, it changes its course southwards. At Baramulla the river enters a gorge in the hills.
• The river forms steep-sided narrow gorge through Pir Panjal Range below Baramula.
• At Muzaffarabad, the river takes a sharp hairpin bend southward.

Ravi River:

• The Ravi has its source in Kullu hills near the Rohtang Pass in Himachal Pradesh.
• It drains the area between the Pir Panjal and the Dhaola Dhar ranges.
• After crossing Chamba, it takes a south-westerly turn and cuts a deep gorge in the Dhaola Dhar range.
• It enters Punjab Plains near Madhopur and later enters Pakistan below Amritsar.
• It debouches into the Chenab a little above Rangpur in Pakistani Punjab.

• The correct answer is 8.

Key Points

• The eight princely states of Western India that were merged to create PEPSU were Patiala, Jind, Nabha, Faridkot, Kapurthala, Kalsia, Nalagarh, and Malerkotla.

Additional Information

• PEPSU:
  • It is the Patiala and East Punjab States Union.
  • It was an Indian state that merged the eight princely states of Punjab.
  • In 1948, these states were joined to form PEPSU, a new state.
  • They were Patiala, Nabha, Malerkotla, Jind, Kapurthala, Faridkot, Nalagarh, and Kalsia.
  • The capital state was Patiala, with an area of 26,208 square kilometers.
  • 1n 1948, the state was inaugurated and became the state of india only in 1950.
  • The current Jind district and Narnaul tehsil in north Haryana, the Loharu tehsil, Charkhi Dadri district, and Mahendragarh district in southwest Haryana, as well as the Loharu tehsil, Charkhi Dadri district, and Mahendragarh district in southwest Haryana, are all parts of the former state of PEPSU that were included in the state of Haryana after it was split from Punjab on 1 November 1966.

• Initially, only men were allowed into the Sangha, but later women were also admitted. According to Buddhist texts, this was made possible through the mediation of Ananda, one of Buddha's dearest disciples, who persuaded him to allow women into the Sangha.

• Buddha's foster mother, Mahapajapati Gotami, was the first woman to be ordained as a bhikkhuni.

• The Mauryan Empire's establishment of an extensive road network was a strategic move that significantly improved logistics, including the rapid movement of military units. This infrastructure was vital for the empire's defense and the integration of its diverse regions.
• The reason provides a direct explanation for the assertion by highlighting the strategic importance of the road network in maintaining the Mauryan Empire's territorial integrity and political stability.

The correct answer is 'Mandi Gobindgarh'.

Key Points

• Mandi Gobindgarh is a town and municipal committee in Fatehgarh Sahib district in the state of Punjab in North India.
• It is also referred to as the Steel City of Punjab or "Loha Mandi" due to its large number of steel factories.
• The steel melting and re-rolling sector consist of small and medium-scale units.
• The city is also a key industrial center of the state, with plenty of enterprises and industrial companies.
• It is also one of the richest cities in the state.

Additional Information

• Ludhiana
  • ​It is called as Manchester of India.
  • This is due to the reason that it is a major industrial town having a huge number of large and medium scale textile industries (like Vardhman group, Trident group), world-famous hosiery industry, cycle parts industry, and many other types of industrial units.
• Amritsar
  • It is called as Golden City.
  • ​It is named so as Golden Temple, a popular shrine of the Sikh religion is located in the city.
  • The main building is covered with original gold plating, that's why the shrine is known as Golden Temple and the city is called as Golden City.
• Ropar
  • ​Rupnagar formerly known as Ropar is a city and a municipal council in the Rupnagar district in the Indian state of Punjab.
  • Rupnagar is a newly created fifth Divisional Headquarters of Punjab comprising Rupnagar, Mohali, and its adjoining districts.
  • It is also one of the bigger sites belonging to the Indus Valley Civilization.

Important Points

• Manchester is a town in Britain, which got developed as a major hub of industry (mainly the textile industry) during the early days of the industrial revolution in Europe in the early 19th century.
• As it was one of the first industrial towns, so Manchester became an acronym for many major industrial towns in the world.

Rivet hole diameter is calculated as:

Bitumen adheres well to all normal types of road aggregates provided they are dry and free from dust. In the absence of water, there is practically no adhesion problem of bituminous construction. Adhesion problem occurs when the aggregate is wet and cold. This problem can be dealt with by removing moisture from the aggregate by drying and increasing the mixing temperature. Further, the presence of water causes stripping of binder from the coated aggregates. These problems occur when the bitumen mixture is permeable to water. 

IRC has specified the maximum value of stripping value of aggregate not to exceed 5%.

(C_c= D₃₀²/D₆₀×D₁₀)

For well-graded soil should be between 1 to 3.

I.e. (1≤C_c≤3)

here M=O, here

Hence the option D is correct.

Hence the correct answer is option A.

Hence, the correct option is (A)

The ruling radius of the horizontal curve on a highway, Ruling =

where, e = allowable superelevation

f = coefficient of lateral friction

The Drag Coefficient has been empirically connected with Reynold's number by Thomas Camp curve as