BRBNMPL Online Test cheat sheet

Bharatiya Reserve Bank Note Mudran Private Limited (BRBNMPL) is a wholly owned subsidiary of the Reserve Bank of India, incorporated in 1995 under the Companies Act, 1956, to produce banknotes and coins for the RBI.

BRBNMPL operates two note printing presses: Mysuru (Karnataka, commissioned 1999) and Salboni (West Bengal, commissioned 2013); a third currency printing facility is run by SPMCIL at Nashik and Dewas for the Government of India.

The RBI's Department of Currency Management decides the volume and denomination-wise indent of banknotes; BRBNMPL prints against that indent and delivers notes to RBI issue offices.

The Reserve Bank of India Act, 1934 (Section 22) gives the RBI the sole right to issue banknotes in India; the minimum reserve system requires backing of Rs 200 crore, of which gold must be at least Rs 115 crore.

The rupee symbol was adopted in 2010; the current Mahatma Gandhi New Series notes (Rs 10 to Rs 2000) were introduced from November 2016, with the Rs 2000 note being the highest denomination in circulation.

Banknotes carry security features including watermarks, security thread, latent image, micro-lettering, intaglio printing, and optically variable ink; the RBI publishes a 'Know Your Banknote' guide for each denomination.

The four main banking functions relevant to note supply are currency issue, exchange of soiled notes, detection of counterfeit notes, and clean note policy (notes in circulation must be fit for use).

The Reserve Bank's Clean Note Policy (1999) requires banks to sort notes into fit and unfit categories, and to remit unfit notes to RBI issue offices for destruction.

The RBI's 'Clean Note Policy' and 'Note Refund Rules' are handled by the Department of Currency Management; the 'Banking Regulation Act, 1949' governs commercial banking operations.

India's coinage is minted by SPMCIL (Security Printing and Minting Corporation of India Limited) under the Coinage Act, 2011, while BRBNMPL focuses on paper banknote printing.

Percentage change = ((new value - old value) / old value) x 100; successive percentage changes of a% then b% give net change = a + b + ab/100.

Simple interest SI = P x R x T / 100; compound interest CI = P(1 + R/100)^T - P; for half-yearly compounding use R/2 and 2T.

Profit/loss: Profit% = (SP - CP)/CP x 100; when two articles are sold at same SP with equal profit% and loss%, there is always a net loss of (x^2/100)%.

Time-speed-distance: Distance = Speed x Time; to convert km/h to m/s multiply by 5/18; relative speed for opposite direction = sum of speeds; same direction = difference.

Average = Sum of observations / Number of observations; if a person's average changes by x after replacing one item, the difference in that item equals x times the number of items.

Ratio and proportion: if a:b = c:d then ad = bc; for three quantities a:b:c, the compounded ratio is a x b x c when chained.

Permutation and combination: nPr = n!/(n-r)!; nCr = n!/(r!(n-r)!); number of ways to arrange n items with repetitions = n!/(p! q! ...).

Time and work: if A does work in x days and B in y days, together they take xy/(x+y) days; work done = rate x time; use LCM method to set total work as 1 unit.

Mensuration: area of circle = pi r^2; circumference = 2 pi r; volume of cylinder = pi r^2 h; volume of sphere = (4/3) pi r^3; volume of cone = (1/3) pi r^2 h.

Probability: P(E) = favourable outcomes / total outcomes; for two independent events P(A and B) = P(A) x P(B); P(A or B) = P(A) + P(B) - P(A and B).

Syllogism: use Venn diagrams; 'All A are B' means A is a subset of B; 'Some A are B' means at least one A is B; conclusions must follow in all possible diagrams to be valid.

Blood relations: draw a family tree; use '+' for male, '-' for female; vertical lines for generations, horizontal for siblings/spouses; 'maternal' refers to mother's side, 'paternal' to father's side.

Direction sense: fix a reference point; use N, S, E, W and rotations; a right turn from North is East, left turn from North is West; final displacement uses Pythagoras for diagonal distances.

Coding-decoding: check letter positions (A=1 ... Z=26) and their reverse (A=26 ... Z=1); common patterns are shift by +1/+2, reversal, or substitution with symbols.

Seating arrangement: for linear arrangement, left/right depends on facing direction; for circular arrangement, clockwise is left when facing centre; always fix one person and arrange others relative to them.

Series completion: identify the pattern (difference, ratio, square/cube, alternate series); for alphabet series, track gaps between letters (e.g., +2, +3, +4).

Analogy: identify the relationship between the first pair (e.g., part-to-whole, cause-effect, synonym, antonym) and apply it to the second pair.

Statement and assumption: an assumption is something taken for granted; a valid assumption is necessary for the statement to hold true; do not assume real-world facts not implied.

Order and ranking: if a person is nth from left and mth from right, total = n + m - 1; if total and one position are given, the other = total - position + 1.

Data sufficiency: evaluate whether each statement alone or together is sufficient; do not solve fully, only test sufficiency.

Subject-verb agreement: singular subject takes singular verb, plural takes plural; 'each', 'every', 'either', 'neither' take singular verbs; 'none' can be singular or plural depending on context.

Tenses: simple present for habits/facts; present continuous for ongoing actions; present perfect for past actions with present relevance; past perfect for the earlier of two past actions.

Articles: 'a' before consonant sounds, 'an' before vowel sounds; 'the' for specific or already mentioned nouns; zero article for general plural or uncountable nouns.

Prepositions: 'in' for enclosed spaces/months/years; 'on' for surfaces/days/dates; 'at' for specific times/points; 'since' with a point of time, 'for' with a duration.

Active to passive: object becomes subject; verb becomes 'be + past participle'; subject becomes 'by + agent'; tense of 'be' matches original tense.

Direct to indirect speech: change pronouns according to the reporter; change tense one step back (present to past); change time/place words (now to then, here to there, today to that day).

Common error spotting: check for double negatives, misplaced modifiers, wrong comparatives ('more better' is wrong), and incorrect use of 'much/many', 'fewer/less'.

Vocabulary: synonym = same meaning; antonym = opposite meaning; homophones sound alike but differ in meaning (e.g., 'their/there'); idioms have figurative meanings not literal.

Reading comprehension: identify the main idea, tone (positive/negative/neutral), and inference; eliminate options that are too broad, too narrow, or contradicted by the passage.

Cloze test: read the whole passage first; choose the option that fits both grammar and meaning; check collocations (e.g., 'make a decision', not 'do a decision').