Bihar Police Constable (23 June 2024)

Question 1:

What is the loss percentage if 96 bananas were bought at ₹ 42 per dozen and sold for ₹ 252?

हानि प्रतिशत क्या है यदि 96 केले ₹ 42 प्रति दर्जन की दर से खरीदे गए तथा ₹ 252 में बेच दिए गए?

• 40%

• 25%

• 30%

• 50%

Question 2:

Read the given passage and answer the questions that follow.

Migaloo is by far one of the world's most recognisable whales, because he is completely white. Thanks to genetic sampling of Migaloo's skin, scientists have identified that he's male, and his albino appearance is a result of a variation in the gene responsible for the colour of his skin. Simply by looking different, Migaloo has become an icon within Australia's east coast humpback whale population. Indeed, Migaloo has his own Twitter account with over 10,000 followers, and website where fans can lodge sightings and learn more about humpback whales.

He was first discovered in 1991 off Byron Bay, Australia, and has since played hide and seek for many years, with many not knowing where or when he'll show up next. He's even surprised Kiwi fans by showing up in New Zealand waters. With the last official sighting two years ago, the time has once again come for us to ask: where is Migaloo? Already this year there have been false sightings, such as a near all white whale spotted off New South Wales. To make things more confusing, regular- looking humpbacks can trick whale watchers when they flip upside down, due to their white bellies.

What is the theme of the passage?

• Whale hunting and its aftermath

• The sighting of Migaloo

• Protection of whales

• The extinction of Migaloo

Question 3:

Indian Standard Time (IST) is........ahead of Greenwich Mean Time (GMT).

भारतीय मानक समय (IST) ग्रीनविच माध्य समय (GMT) से........आगे हैं। 

• 3 घंटे, 30 मिनट 3 hours, 30 minutes

• 6 घंटे, 15 मिनट 6 hours, 15 minutes

• 5 घंटे, 30 मिनट 5 hours, 30 minutes

• 5 घंटे, 10 मिनट 5 hours, 10 minutes

Question 4:

Oxidation of a substance takes place if-

किसी पदार्थ का उपचयन (Oxidation) होता है यदि उसमें- 

1. ऑक्सीजन की वृद्धि हुई हो। Oxygen has increased in it.

2. ऑक्सीजन का ह्रास हुआ हो । Oxygen has decreased.

3. हाइड्रोजन की वृद्धि हुई हो। Hydrogen has increased.

4. हाइड्रोजन का ह्रास हुआ हो। Hydrogen has decreased.

कूट: Code:

• केवल 1 Only 1

• केवल 1 और 4 Only 1 and 4

• केवल 1 और 3 Only 1 and 3

• इनमें से कोई नहीं None of these

Question 5:

What is 'aqueous chamber' with respect to human eye?

मानव नेत्र के संबंध में 'एक्वस चैंबर' क्या है?

• इनमें से कोई नहीं None of these

• लेंस और रेटिना के बीच का रिक्त स्थान Space between the lens and retina

• नेत्र गोलक के भीतर पारदर्शी क्रिस्टलीय लेंस Transparent crystalline lens inside the eyeball

• कॉर्निया और लेंस के बीच का स्थान Space between the cornea and lens

Question 6:

What changes will occur in a sample of carbon dioxide converted from solid to liquid and liquid to gas?

ठोस से द्रव तथा द्रव से गैस में रूपांतरित होने वाले कार्बन डाइऑक्साइड के नमूने में क्या परिवर्तन होगा ? 

• भौतिक गुणों में कोई परिवर्तन नहीं No change in physical properties

• संयोजन में परिवर्तन Change in composition

• द्रव्यमान में परिवर्तन Change in mass

• घनत्व में परिवर्तन Change in density

Question 7:

निम्न में से कौन सा देश North Atlantic Treaty Organization (NATO) का 32वां सदस्य बना है ?

Which of the following countries has become the 32nd member of the North Atlantic Treaty Organization (NATO)? 

• पेरू | Peru 

• फ़िनलैंड | Finland 

• स्वीडन | Sweden

• भारत | India 

Question 8:

"नदी" का पर्यायवाची शब्द इनमें से कौन सा नहीं है?

• सरिता

• नद्य

• उषा

• नटिनी

Question 9:

निम्नलिखित में से कौन-सा शब्द तद्भव नहीं है?

• अधर

• आँख

• दाँत

• कान

Question 10:

What name have scientists given to the matter which is made of every object in this universe?

इस ब्रह्मांड में मौजूद प्रत्येक वस्तु जो पदार्थ से निर्मित है, उसे वैज्ञानिकों ने क्या नाम दिया है? 

• द्रव Liquid

• ठोस Solid

• द्रव्य Matter

• क्रिस्टल Crystal