Your Answer : (Not Answered)

Correct Answer : D

Both walkers move the same way as the train, so the relative speeds are differences.

\[ L = (v - 4.5) \times \frac{5}{18} \times 8.4 = (v - 5.4) \times \frac{5}{18} \times 8.5 \]

\[ 8.4(v - 4.5) = 8.5(v - 5.4) \]

\[ 8.4v - 37.8 = 8.5v - 45.9 \quad\Longrightarrow\quad 0.1v = 8.1 \]

\[ v = 81 \text{ km/hr} \]

The train's length works out at 75.6 m, though the question asks only for the speed.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Earthquake

The relation is science : what it studies. Penology studies punishment and the treatment of offenders; seismology studies earthquakes and the waves they send through the earth.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: Alternating Current

AC is alternating current, which reverses direction periodically, as against direct current, which does not.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: find and remove hidden data such as comments and personal information

The Document Inspector examines a file for content that is present but not visible - comments, tracked changes, document properties and author names, hidden text, headers and footers, embedded objects, and custom XML data - and offers to remove what is found. Its purpose is to prevent an accidental disclosure. A document sent out with tracked changes hidden by the No Markup view still contains every edit, and the metadata records who wrote it and how long they spent. Both have caused real embarrassment. It is reached through File, then Info, then Check for Issues. Two related checks sit beside it: the Accessibility Checker, which finds missing image descriptions and poor heading structure, and the Compatibility Checker, which reports features that will not survive being opened in an older version. Removal is not undoable, so the usual practice is to inspect a copy rather than the working file.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: 25th April

World Malaria Day was instituted by the World Health Assembly in 2007 and is observed on 25 April. It grew out of Africa Malaria Day, and marks progress in control while pressing for continued funding.

Your Answer : (Not Answered)

Correct Answer : A

Professor Amartya Sen earned his distinction in economics.

He received the Nobel Memorial Prize in 1998 for contributions to welfare economics and social choice theory, and for showing that famines arise from the loss of entitlement to food rather than from its absence.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: 15°

The Earth turns through 360° in 24 hours, so in one hour it turns \[ \frac{360}{24} = 15 \text{ degrees}. \] That single figure underlies the whole system of time zones: each standard zone is nominally 15° of longitude wide, and local time changes by one hour for every 15° travelled east or west. Four minutes correspond to one degree. It also explains India’s single time zone. Indian Standard Time is fixed to the 82.5°E meridian near Mirzapur, giving an offset of \( 82.5 / 15 = 5.5 \) hours ahead of Greenwich - the half hour comes from the meridian falling midway between two whole multiples of 15. Before the railways forced standardisation in the nineteenth century, each town simply kept its own solar time.

Your Answer : (Not Answered)

Correct Answer : D

ICICI is a financial institution.

The Industrial Credit and Investment Corporation of India was set up in 1955 with World Bank participation to lend to private industry. It converted into ICICI Bank through a reverse merger in 2002, and is now one of India's largest private banks.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Output Device

A printer takes data from the computer and renders it on paper, so the flow is outward and the classification follows - it is an output device.

The direction of data is the test in every case: keyboards, mice and scanners send data in and are inputs; monitors, printers and speakers receive data and present it, and are outputs. A multifunction device does both, being a printer and a scanner in one case, but each function keeps its own classification.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Organized around important subject areas.

Subject orientation is the first of the defining characteristics: the warehouse is arranged around customer, product or sale rather than around the applications the data came from. The other options describe an operational system - it is the warehouse that is integrated, non-volatile and time-variant.

Your Answer : (Not Answered)

Correct Answer : D

The correct code is (L)-(4), (M)-(3), (N)-(1), (O)-(2).

• Biopol, a polyhydroxybutyrate bioplastic, is made by Alcaligenes eutrophus (now Cupriavidus necator) (4).
• Biopesticide: Bacillus sphaericus produces toxins against mosquito larvae (3).
• Bioleaching of copper and other metals uses Thiobacillus ferrooxidans (1).
• Bioremediation of oil: Pseudomonas putida, including Chakrabarty's engineered 'superbug', degrades hydrocarbons (2).

The other codes misplace at least two organisms, for example giving bioleaching to Pseudomonas.

Your Answer : (Not Answered)

Correct Answer : D

Charging and collection are separate steps performed by the same field, and removal of the collected dust is a third. Rapping too gently leaves an insulating layer and too hard re-entrains the dust, so its timing is a matter of some care.

Your Answer : (Not Answered)

Correct Answer : D

The price of next year's money in terms of this year's money is 1 / (1 + nominal interest rate).

One rupee invested today at nominal rate i grows to (1 + i) rupees next year. So one rupee next year is worth 1/(1 + i) rupees today: this discount factor is the price, in today's money, of a rupee delivered next year.

1 + i (B) is the reverse, the price of this year's money in terms of next year's. The real interest rate (A, C) converts goods across time, not money, so it is not the right rate here.

Your Answer : (Not Answered)

Correct Answer : A

Shaikh Sharfuddin Yahya Maneri belonged to the Firdausi silsilah. This was a branch of the Suhrawardi order that was active in Bihar, and Maneri is one of its famous saints, known for his letters (Maktubat).

The Chishti, Suhrawardi and Naqshbandi are other Sufi orders, and he is not counted as one of their members, so they are wrong. Maneri's letters to his disciples set out Sufi teaching in simple language, and his tomb at Bihar Sharif is a place of pilgrimage.

Your Answer : (Not Answered)

Correct Answer : C

Pairs iii and iv are wrongly matched, so the answer is Only (iii and iv).

The Bharat Mata society and paper and the Anjuman-i-Mohibban-i-Watan (Society of Patriots) were both associated with Ajit Singh and Sufi Amba Prasad in the Punjab unrest of 1907, not with Lala Lajpat Rai or Sirajuddin Ahmad.

Pair i is correct: Tenets of the New Party was Tilak's speech of January 1907 setting out the Extremist programme. Pair ii is accepted: Lala Harkishan Lal, the Lahore financier who helped found the Punjab National Bank with Dyal Singh Majithia, belonged to the circle around Majithia's paper The Tribune. That leaves options naming only i, only iii or only iv incomplete.

Your Answer : (Not Answered)

Correct Answer : A

The ozone hole is located above Antarctica, option A. The depletion of the ozone layer is the greatest above the south pole in the spring, because the polar stratospheric clouds and the cold of the polar vortex favour the reactions of chlorine that destroy ozone. The Arctic Ocean, the equatorial zone and Greenland have not had a hole of this size. The other options name places, people or terms that the subject does not connect with this question, so only the keyed option stands.

Your Answer : (Not Answered)

Correct Answer : D

The lender of last resort is the central bank.

When commercial banks face a liquidity crisis and cannot borrow elsewhere, the central bank lends to them, against approved securities, to prevent a run on the banks and a collapse of the financial system. In India the Reserve Bank of India plays this role, through facilities such as the marginal standing facility.

Commercial, agricultural and industrial banks are themselves borrowers in such a crisis. They lend to their customers, but they cannot create the reserves needed to rescue the banking system, which only the central bank can do.

Your Answer : (Not Answered)

Correct Answer : C

The life-threatening condition is Heat stroke.

In heat stroke the body's temperature regulation fails: core temperature rises above about 40 degrees Celsius, sweating may stop, and confusion, collapse and organ damage follow. It is a medical emergency that needs immediate cooling and medical care.

Heat exhaustion is a milder heat illness with heavy sweating, weakness and dizziness; it can progress to heat stroke but is not itself usually life threatening. Heat radiation and heat loss are ways the body gets rid of heat, not illnesses.

Your Answer : (Not Answered)

Correct Answer : D

The element 2 is irreducible.

Use the norm \(N(a + b\sqrt{-p}) = a^{2} + pb^{2}\), which is multiplicative. \(N(2) = 4\). A factorization \(2 = \alpha\beta\) into non-units would need \(N(\alpha) = N(\beta) = 2\), that is \(a^{2} + pb^{2} = 2\), which has no integer solution when \(p \ge 3\). So 2 is irreducible.

It is not a unit, since units have norm 1. It is not a square: \((a + b\sqrt{-p})^{2} = 2\) forces \(ab = 0\) and then \(a^{2} = 2\) or \(-pb^{2} = 2\). It is not prime: \(p + 1\) is even, so 2 divides \((1 + \sqrt{-p})(1 - \sqrt{-p}) = 1 + p\), yet 2 divides neither factor, because \(\frac{1}{2} \pm \frac{1}{2}\sqrt{-p}\) is not in the ring.

Your Answer : (Not Answered)

Correct Answer : A

The three alkaloids are obtained from the roots of Rauwolfia serpentina.

Indian snakeroot (sarpagandha) is the source of reserpine, the classic antihypertensive and tranquilliser, together with serpentine and ajmalicine and related indole alkaloids. The plant has a long use in Ayurveda for hypertension and insanity.

Bacopa monnieri (brahmi) yields bacosides used as memory tonics. Papaver somniferum yields opium alkaloids such as morphine and codeine. Catharanthus roseus is known for vinblastine and vincristine; its roots also contain ajmalicine and serpentine, but not reserpine, so only Rauwolfia supplies all three.