Your Answer : (Not Answered)

Correct Answer : D

Treat each subject as a single block, then arrange within each block.

\[ \text{blocks among themselves} = 3! = 6 \]

\[ \text{History} = 3! = 6, \quad \text{Science} = 4! = 24, \quad \text{Maths} = 2! = 2 \]

\[ 6 \times 6 \times 24 \times 2 = 1728 \]

Forgetting the \( 3! \) for the blocks themselves would give 288; the subjects can appear in any order on the shelf.

Your Answer : (Not Answered)

Correct Answer : A

Take the capitals as 4, 5 and 6, and the year as 12 months. A's capital changes after 8 months to half of C's initial 6, that is 3.

\[ A: 4 \times 8 + 3 \times 4 = 32 + 12 = 44 \]

\[ B: 5 \times 12 = 60 \]

\[ C: 6 \times 12 = 72 \]

\[ \text{total} = 176 \]

B's Rs. 7500 corresponds to 60 of those 176 parts:

\[ \text{total profit} = 7500 \times \frac{176}{60} = \text{Rs. } 22{,}000 \]

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: PACKET

KALEIDOSCOPE contains no T, and PACKET needs one. SCALE, PADLOCK and DIESEL are all available - DIESEL needs two e's, and the word supplies three.

Your Answer : (Not Answered)

Correct Answer : C

The metals are Potassium, Iron, Copper.

Potassium reacts violently with cold water, so violently that the hydrogen released catches fire (A). Iron does not react with cold or hot water but reacts with steam to form iron oxide and hydrogen (B). Copper does not react with water at all (C).

The other options misplace a metal. In option 1, iron is put among metals that do not react with water, but it reacts with steam, and calcium reacts with cold water much less violently than potassium. In option 2, magnesium does not react violently with cold water. In option 4, copper is listed as reacting with steam, which it does not, and aluminium as not reacting with water, though it reacts with steam.

Your Answer : (Not Answered)

Correct Answer : C

SLIP stands for Serial Line Internet Protocol.

It carried IP packets over a serial link and was the standard way of dialling into the internet before PPP, which added error detection, authentication and dynamic addressing, replaced it.

Your Answer : (Not Answered)

Correct Answer : A

It was Subrahmanyan Chandrasekhar.

He shared the Nobel Prize in Physics in 1983 for the theoretical study of the structure and evolution of stars - work begun at nineteen on the voyage to England, showing that a white dwarf above about 1.44 solar masses cannot support itself. Eddington ridiculed it publicly, and it took decades to be accepted.

Your Answer : (Not Answered)

Correct Answer : C

Acetobacter and its relatives oxidise ethanol to acetic acid in the presence of air, which is why vinegar production needs aeration where alcoholic fermentation needs its exclusion. The same organisms spoil wine and beer left open.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Virulence plasmid

A virulence plasmid carries genes that make its host more pathogenic - adhesins, invasion determinants, toxins or iron-scavenging systems. The Ent plasmids encoding enterotoxins in Escherichia coli, the pXO1 and pXO2 plasmids of Bacillus anthracis and the invasion plasmids of Shigella are all examples.

An F factor is a fertility plasmid concerned with conjugation and confers no virulence, while a metabolic plasmid encodes degradative or biosynthetic enzymes that widen the range of substrates the cell can use. The classification is by the function the accessory genes serve.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Statement I is incorrect but Statement II is correct

A standard specifies its averaging time as part of the standard, because health effects depend on duration as well as concentration. An hourly value may lawfully exceed an annual mean limit many times over; the two are simply not comparable quantities.

Your Answer : (Not Answered)

Correct Answer : B

A transimpedance stage converts current to voltage, and its bandwidth is set by the feedback resistor working into the input node's capacitance, which includes the photodiode's own and the amplifier's. Larger feedback resistance gives more transimpedance and less bandwidth, exactly the familiar trade. Load resistance and coupling capacitors are not the limitation. Identifying which resistance and which capacitance form the dominant time constant is the whole of predicting such a stage's speed.

Your Answer : (Not Answered)

Correct Answer : C

Eady works on an f-plane between two rigid lids, Charney on a beta plane with no upper boundary, and the two-level model on a beta plane with the vertical structure reduced to two discrete levels. Each isolates a different aspect of the problem, and the differences between their predictions are precisely what reveal the role of each ingredient.

Your Answer : (Not Answered)

Correct Answer : C

A debugger must map machine addresses back to source names. The information is derived from the symbol table but written in a separate standard format the debugger understands. The format must describe types, scopes and locations independently of the compiler.

Your Answer : (Not Answered)

Correct Answer : A

The normative standard is ISO 14001.

ISO 14001 specifies the requirements of an environmental management system: an environmental policy, planning, implementation, checking and management review. Because it states requirements, an organisation can be audited and certified against it, which is what makes it normative (a specification standard).

The other standards in the series give guidance only: ISO 14020 sets general principles for environmental labels, ISO 14040 the principles of life cycle assessment, and ISO 14015 the environmental assessment of sites and organisations. None is used for certification.

Your Answer : (Not Answered)

Correct Answer : C

A strike-slip fault is inferred when \(S_{H} \gt S_{v} \gt S_{h}\).

Anderson's theory takes one principal stress to be vertical, since the Earth's surface carries no shear stress, and says that faults form in the plane containing the intermediate stress. So the type of fault depends on which stress is vertical:

• \(S_{v}\) greatest (\(S_{v} \gt S_{H} \gt S_{h}\)): normal fault.
• \(S_{v}\) intermediate (\(S_{H} \gt S_{v} \gt S_{h}\)): strike-slip fault.
• \(S_{v}\) least (\(S_{H} \gt S_{h} \gt S_{v}\)): reverse or thrust fault.

So the first option describes thrusting and the fourth normal faulting. The second is impossible, since \(S_{h}\) is by definition the smaller horizontal stress.

Your Answer : (Not Answered)

Correct Answer : A

The statement that is not a matter of global concern is that tropical forests absorb the chemicals that contribute to depletion of the ozone layer. The depletion of ozone is mainly caused by chemicals such as chlorofluorocarbons, and forests are not known to remove them.

The other three are real concerns: forests keep up the oxygen and carbon balance, regulate temperatures, moisture and reflectivity, and hold a large part of the planet's biodiversity.

Your Answer : (Not Answered)

Correct Answer : A

The answer is Khush Mahal in Warangal.

Warangal fell to the Delhi Sultanate's army under the Tughluqid prince Ulugh Khan, the future Muhammad bin Tughlaq, in 1323, and was refounded as Sultanpur. The Khush Mahal there is a free-standing audience hall that scholars now date to this Tughluq occupation on grounds of its style (Encyclopaedia Iranica); it was long thought to be of the sixteenth century. That dating rests on stylistic argument, but it is the one the key follows.

Durgam Cheruvu is a lake in Hyderabad, the Taj Bawadi is a Bijapur step-well of the Adil Shahi period, and the Madrasa of Mahmud Gawan in Bidar belongs to the Bahmani sultans, none of which is a Tughlaq building.

Your Answer : (Not Answered)

Correct Answer : A

The process of determining the tasks that make up a job and the skills, abilities and responsibilities needed to perform it is job analysis. Job description and job specification are written outputs of that analysis: the first lists duties and the second lists the human qualifications. Job enrichment is a job design method that adds responsibility and challenge to a job. Since only A names the process itself, D is wrong and A is correct.

Your Answer : (Not Answered)

Correct Answer : A

CAPM accounts for Systematic risk.

The capital asset pricing model gives the required return as

\[ k = R_f + \beta (R_m - R_f) \]

where beta measures the security's sensitivity to market movements, its systematic or non-diversifiable risk. Unsystematic risk, specific to a company or industry, can be eliminated by diversification, so the market does not reward it and CAPM leaves it out. 'Frontier risk' and 'accounting risk' are not risk measures in CAPM.

Your Answer : (Not Answered)

Correct Answer : D

In childhood, behaviour is most influenced by the family.

The family is the primary agent of socialisation. In the early years parents and siblings are the child's main models, and the family shapes habits, values, language, attitudes to physical activity and emotional security before the wider world has much effect.

The school and the community become important later, as secondary agents, and the peer group gains its greatest influence in adolescence, when young people turn to friends for approval and identity.

Your Answer : (Not Answered)

Correct Answer : C

The IUPAC name is Pentacarbonyliron(0).

CO is a neutral ligand, so in [Fe(CO)₅] iron has oxidation state 0. The complex is neutral, so the metal keeps its ordinary name, iron; the '-ate' ending (ferrate) is used only when the complex is an anion. The ligand count and name come first: pentacarbonyl.

All the 'ferrate' options are wrong because the complex is not an anion, and the (II) and (III) options give an oxidation state that the neutral ligands cannot balance.