BSSC Field Assistant cheat sheet

Article 356: President's Rule imposed when constitutional machinery fails in a state; requires parliamentary approval within 2 months.

Bihar Diwas: celebrated on 22 March, commemorating the separation of Bihar from Bengal in 1912.

NITI Aayog: replaced the Planning Commission on 1 January 2015; chaired by the Prime Minister.

RBI monetary policy repo rate is set by the Monetary Policy Committee (6 members, 3 from RBI, 3 external).

UN Sustainable Development Goals: 17 goals adopted in 2015 with a 2030 deadline.

First Chief Minister of Bihar: Shri Krishna Singh (1946–1961); first Governor: Jairamdas Daulatram.

National Emergency (Article 352) can be proclaimed on grounds of war, external aggression, or armed rebellion.

Bihar's current Chief Minister (as of 2024): Nitish Kumar; Governor: Rajendra Arlekar (took office 2023).

Bharat Ratna 2024 awardees: Karpoori Thakur (posthumous), M. S. Swaminathan (posthumous), Lal Krishna Advani, and others.

Newton's second law: F = ma; SI unit of force is the newton (kg·m/s²).

Photosynthesis equation: 6CO₂ + 6H₂O + light → C₆H₁₂O₆ + 6O₂, occurring in chloroplasts.

Ohm's law: V = IR; resistance in series adds (R = R₁ + R₂), in parallel 1/R = 1/R₁ + 1/R₂.

Human blood groups: A, B, AB, O; O negative is the universal donor, AB positive the universal recipient.

pH scale: 0–14; pH < 7 acidic, pH = 7 neutral, pH > 7 basic; litmus turns red in acid.

Speed of light in vacuum: approximately 3 × 10⁸ m/s; sound in air ≈ 343 m/s at 20 °C.

Mitochondria are the powerhouse of the cell; ribosomes are the site of protein synthesis.

Boyle's law: at constant temperature, PV = constant for a fixed mass of gas.

Vitamin C (ascorbic acid) deficiency causes scurvy; vitamin D deficiency causes rickets.

Percentage change = (new − old)/old × 100; successive percentage changes a% then b% give net a + b + ab/100.

Simple interest SI = PRT/100; compound amount A = P(1 + R/100)^T.

Average = sum of observations / number of observations; if each value increases by k, average increases by k.

Ratio and proportion: if a:b = c:d then ad = bc; duplicate ratio of a:b is a²:b².

Time and work: if A does work in x days and B in y days, together they take xy/(x + y) days.

Speed = distance/time; to convert km/h to m/s multiply by 5/18.

Area formulas: circle πr², triangle ½ × base × height, rectangle l × b, trapezium ½(a+b)h.

Profit percentage = (SP − CP)/CP × 100; discount = marked price − selling price.

LCM × HCF = product of two numbers (for two positive integers).

Number series: check differences, ratios, squares/cubes, and alternating patterns before assuming a rule.

Coding-decoding: map letter positions A=1 … Z=26; reverse alphabet position = 27 − position.

Blood relations: draw a family tree; vertical lines for generations, horizontal for siblings/spouses.

Direction sense: use a compass; after turning right from north you face east, left from north you face west.

Syllogism: use Venn diagrams; 'All A are B' does not imply 'All B are A'.

Odd one out: classify by number of letters, vowel count, or semantic category.

Calendar: a normal year shifts the weekday by 1, a leap year by 2; 100 years shift by 5 odd days.

Seating arrangement: fix a reference point, then place others clockwise/anticlockwise as stated.

Analogy: identify the relationship type (cause-effect, part-whole, synonym) before selecting the pair.

संधि: दो वर्णों के मेल से उत्पन्न विकार संधि कहलाता है; स्वर संधि, व्यंजन संधि और विसर्ग संधि तीन प्रकार।

समास: दो या दो से अधिक शब्दों के मेल से बना पद; तत्पुरुष, कर्मधारय, द्विगु, द्वंद्व, बहुव्रीहि, अव्ययीभाव प्रमुख भेद।

उपसर्ग: शब्द के आरंभ में जुड़कर अर्थ बदलता है; जैसे 'प्र' + 'हार' = प्रहार।

प्रत्यय: शब्द के अंत में जुड़कर नया शब्द बनाता है; जैसे 'लड़क' + 'पन' = लड़कपन।

वाक्य के अंग: उद्देश्य और विधेय; वाक्य भेद - सरल, संयुक्त, मिश्र।

अलंकार: अनुप्रास (वर्णों की आवृत्ति), उपमा (समानता), रूपक (अभेद आरोप), यमक (शब्द आवृत्ति)।

रस: काव्य में आनंद देने वाला भाव; श्रृंगार, हास्य, करुण, रौद्र, वीर, भयानक, बीभत्स, अद्भुत, शांत - नौ रस।

वर्तनी: 'कि' और 'की' का प्रयोग भेद करें; 'कि' योजक, 'की' संबंधसूचक।

मुहावरा: लक्षणार्थक पदबंध; जैसे 'नौ दो ग्यारह होना' का अर्थ भाग जाना।

Subject-verb agreement: singular subject takes singular verb; 'each', 'every', 'either' are singular.

Articles: 'a' before consonant sounds, 'an' before vowel sounds, 'the' for specific or unique nouns.

Tenses: present perfect (has/have + past participle) for past actions with present relevance.

Active to passive: object becomes subject; verb becomes be + past participle; by + agent.

Prepositions: 'in' for months/years, 'on' for days/dates, 'at' for precise times.

Synonyms and antonyms: use context; 'benevolent' means kind, its antonym is 'malevolent'.

Idioms: 'a blessing in disguise' means an apparent misfortune that turns out beneficial.

Direct to indirect speech: change pronouns, tense backshift, and time/place words (now → then, here → there).

Spotting errors: check subject-verb agreement, pronoun reference, tense consistency, and preposition use.

Bihar shares borders with Nepal (north), West Bengal (east), Jharkhand (south), and Uttar Pradesh (west).

Major rivers: Ganga, Gandak, Kosi, Son, Bagmati, and Falgu; Kosi is known as the 'Sorrow of Bihar'.

Bihar's capital is Patna; the state has 38 districts and 9 divisions.

Field survey: use GPS for coordinates, maintain a field diary, and record date, time, and observer name.

Sampling methods: random, stratified, and systematic; choose based on population distribution.

Questionnaire design: use clear, unbiased, closed-ended questions; pilot-test before full deployment.

Data quality: cross-check entries, avoid leading questions, and ensure informed consent before interviews.

Land measurement: 1 bigha varies regionally; in Bihar approximately 1 bigha ≈ 0.4 hectare (verify locally).

Bihar's economy is primarily agricultural; major crops include rice, wheat, maize, and sugarcane.