Bihar Police Constable Mock Test - 5 - Bihar Police Constable MCQ

Total power used, P - P₁ + P₂ = 1500 + 500 = 2000 W.
Current drawn from the supply,

Underemployment is a measure of employment and labor utilization in the economy that looks at how well the labor force is being utilized in terms of skills, experience and availability to work. Labor that falls under the underemployment classification includes those workers who are highly skilled but working in low paying or low skill jobs and part-time workers who would prefer to be full-time. This is different from unemployment in that the individual is working but is not working at his full capability.

जो शब्द अन्य शब्दों के योग से बनते हो, परन्तु एक विशेष अर्थ के लिए प्रसिद्ध होते है, उन्हें योगरूढ़ शब्द कहते है।

जैसे- लम्बोदर, पंकज, दशानन, जलज इत्यादि।

लम्बोदर = लम्ब +उदर

(बड़े पेट वाला )= गणेश जी

दशानन = दश +आनन

दस मुखों वाला = रावण

'पंक +ज' अर्थ है कीचड़ से (में) उत्पत्र; पर इससे केवल 'कमल' का अर्थ लिया जायेगा, अतः 'पंकज 'योगरूढ़ है।

Sound is only audible to the average humar ear if the frequencies lie between 20 Hz and 20 kHz. The actual range varies from person to person. Sound waves with frequencies less than 20 Hz are called infrasonic or subsonic and those with frequencies above 20 kHz are called ultrasonic. 

The 91st Interpol General Assembly, led by the Indian delegation comprising the Central Bureau of Investigation (CBI) and National Investigation Agency (NIA), emphasized denying safe havens to crime. It took place in Vienna, Austria.

• Per Capita Income: Per capita income in India is the average income earned per person in a given area in a specified year.


• Options: The given options for per capita income in dollars per annum are: 735, 836, 835, and 736.


• Correct Answer: The correct answer is option D: 736 dollars per annum.


• Explanation: The per capita income in India is approximately 736 dollars per annum, which means on average, each person in India earns 736 dollars in a year.

for a given AP, the Nth term is:
a(n) = a + (n-1) x d
a(17) = a + (17−1) x d
a(17) = a + 16 x d
a(10) = a+9(d)
a(17) – a(10) = 7
(a + 16 x d) − (a + 9 x d) = 7
7 x d = 7
d = 1

Let AB be the kite and AC be the level ground
So that BC - AC.
At that point, ∠BAC = 60°and BC = 75m. Let AB = x meters.
Presently AB/BC = coses60° = 2/ √3
=> x/75 = 2/√3 => x = 150/√3 = 150 * √3/3 = 50 √3m.
∴ Length of the string = 50 √3m.

Low temperature and high pressure are required to liquefy gases to liquids. There is a lot of space between the particles of a gas. On applying high pressure, the particles of gas move get so close that they start attracting each other sufficiently forming a liquid. When gas is compressed too much, heat is produced, so it is necessary to cool it. Cooling lowers the temperature of compressed gas and helps in liquefying it. Hence, a gas can be liquefied by applying high pressure and lowering the temperature (cooling).

• Who was known as "Lakh Buksh"?

• Option A: Aibak


• Qutb-ud-din Aibak, the founder of the Delhi Sultanate, was known as "Lakh Buksh".

• Option B: Iltutmish


• Iltutmish was the third ruler of the Delhi Sultanate and known for his administrative reforms.

• Option C: Balban


• Balban was a powerful ruler of the Delhi Sultanate known for his strong and authoritarian rule.

• Option D: Raziya


• Raziya Sultana was the only female ruler of the Delhi Sultanate and known for her courage and administrative abilities.

• The correct answer is Option A: Aibak.

IIT Madras hosts the 6th Shaastra Rapid FIDE Rated Chess Tournament from March 30 to 31, 2024, in Chennai. It’s the sole IIT in India to conduct an annual Open Rapid Rating Tournament. Over 35 players from IIT Madras join, alongside international players from countries like Australia, England, America, and Singapore. Notable participants include six grandmasters, sixteen International Masters, three female grandmasters, and a Woman International Master.

81% of 600 – x = 40% of 300
486 – x = 120
x = 366
Hence, Option C is correct.

Option 3 : 1 - IV, 2 - I, 3 - II, 4 - III

Use of Alum:

• Alum, also known as aluminium sulfate (Al₂(SO₄)₃.18H₂O) is added to water in order to help in the sedimentation of suspended impurities.
• Alum is a universal coagulant.
• It destabilizes the mud particles suspended in it through the process known as coagulation. 
• Alum when added to water attaches to the suspended particles and increases their size forming a floc.
• This floc is due to an increase in size and weight settling at the bottom of the container.
• These are removed by pouring out the clean water layer formed at the top.

Thus, Rekha's mother adds Phitkari (Alum) to water collected from the pond every day in order to sediment light-suspended impurities.

Additional Information 

• Hard water is water that contains a high amount of dissolved minerals (calcium and magnesium salts in the form of bicarbonates, chlorides, and sulfates.)
• Hard water does not lather with soap.
• Soft water is surface water that contains low dissolved minerals.
• Alum does not kill germs, in general, bleaching powder is used to kill germs in the water.
• Alum does not decolourize water.

Antonie Van Leeuwenhoek was a Dutch scientist who is credited with being the first person to observe and describe microorganisms using a microscope. He made his microscopes, which were far more powerful than any that had been made before. Van Leeuwenhoek's discoveries revolutionized our understanding of the microscopic world and laid the foundation for the field of microbiology.

'आपबीती' अव्ययीभाव समास का उदाहरण नही है। अतः 'आपबीती' सही उत्तर है।
आपबीती - अपने पर बीती हुई - तत्पुरुष समास
Key Points

• बेखटके - बिना खटके के - अव्ययीभाव समास
• प्रतिदिन - प्रत्येक दिन - अव्ययीभाव समास
• 'पुश्तानुपुश्त' :- पुश्तो के बाद पुश्ते - अव्ययी भाव समास
• यथासम्भव - जैसे भी सम्भव हो - अव्ययीभाव समास

Additional Information

So the answer = (100 – 50)% of 700 + (100 – 60)% of 500 = 550
Hence, Option D is correct.

Haemoglobin is the iron containing protein found in red blood cells. It is responsible for the transportation of oxygen and carbon dioxide. It consists of four protein chains and each chain has a haem group attached to it. Each haem group has an iron molecule. The oxygen binds to the iron molecule. Since there are four iron molecules, each haemoglobin is capable of carrying four oxygen molecules.

All 6,650 villages in Jammu and Kashmir have achieved Open Defecation Free Plus Model status, making it the first union territory in India to do so. This is a significant achievement, as it means that all villagers now have access to safe and sanitary toilets and that greywater and solid waste are being managed effectively.

संवेदनाओ की तलाश के कवि के नाम से प्रसिद्ध कवि केदारनाथ सिंह है। केदारनाथ सिंह का जीवन काल 1934-2018 है। इन्हें संवेदनाओ का और आस्था का भी कवि कहा जाता हैI

The history of the Bhakti Movement can be traced back to the times of the great reformer Shankracharya, who provided a solid philosophical background to Hinduism.

Former Attorney General Feleti Teo has been chosen as Tuvalu’s new prime minister by parliamentary members after a recent election spotlighted the nation’s ties with Taiwan. Teo, the sole nominee, was unanimously elected by 15 lawmakers without a vote. Following the January 26 election where the pro-Taiwan predecessor, Kausea Natano, lost his seat, Teo’s swearing-in ceremony and cabinet appointment are scheduled for later this week.

‘धोनी ने सन्यास ले लिया’, यह वाक्य सरल वाक्य है।

ऐसे वाक्य जिनमें एक ही क्रिया एवं एक ही कर्ता होता है या जिस वाक्य में एक ही उद्देश्य एवं एक ही विधेय होता है, वे वाक्य सरल वाक्य कहलाते हैं। इसमें कर्ता एक से अधिक हो सकते हैं लेकिन मुख्य क्रिया एक ही होगी।

Newton's third law states that for every action, there is an equal and opposite reaction. This means that the forces are equal in magnitude (1), act simultaneously (3), and are opposite in direction (4). However, they act on different bodies, not the same one.

• Profit Generation: Banks earn interest income by lending out deposits to borrowers at higher interest rates than what they pay depositors.


• Meeting Financial Needs: Extending loans allows banks to meet the financial needs of individuals, businesses, and other entities in the form of personal loans, business loans, mortgages, etc.


• Economic Growth: By providing loans, banks contribute to economic growth by facilitating investments, consumption, and overall economic activity.


• Risk Management: Banks carefully assess the creditworthiness of borrowers before extending loans to manage the risk of defaults and ensure the safety of depositors' funds.


• Regulatory Requirements: Banks are required by regulatory authorities to maintain a certain level of reserves but can use the majority of deposits to extend loans to promote economic growth.

• Banks play a crucial role in the economy by utilizing deposits to extend loans, which helps in generating profits, meeting financial needs, promoting economic growth, managing risks, and complying with regulatory requirements.

Muhammad Tughluq believed that he was the shadow of God. Some of the inscriptions on his coins read as “Sovereignty is not conferred upon every man, but is placed on the elect.” “He who obeys the Sultan truly obeys God.” “The Sultan is the shadow of God” and “God is the supporter of the Sultan.” He dropped all references to the Khalifa.

The correct answer is 70.

Key Points

• The major crops of the state are wheat and rice.
• Haryana is the second largest contributor to India’s central pool of food grains.
• When the green revolution started in India in 1970, Haryana contributed significantly.

Chief Revenue Collector and Settlement of Revenue Disputes

• Munsif: A Munsif was a judicial officer responsible for deciding civil cases at the local level. They were not involved in revenue collection or settlement of revenue disputes.
• Amil: The Amil was the chief revenue collector in charge of collecting revenue at the pargana level. They were also empowered to settle revenue disputes.
• Wali: A Wali was a local administrator responsible for maintaining law and order, not revenue collection or dispute settlement.
• Khan: Khan was a title of respect in some regions, not a specific office related to revenue collection or dispute settlement.

Therefore, the correct officer who was the chief revenue collector and empowered to settle revenue disputes at the pargana level was the Amil.