Your Answer : (Not Answered)

Correct Answer : B

The work will take 13 days.

The total work in person-hours is the same in both cases:

\[ \begin{aligned} 39 \times 12 \times 5 &= 30 \times d \times 6 \\ 2340 &= 180\,d \\ d &= 13 \end{aligned} \]

Fewer people means more days, but longer working days mean fewer, and the two partly cancel. The other options do not balance: 15 days, for example, gives \(30 \times 15 \times 6 = 2700\) person-hours, more than the 2340 the job needs.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: ndsc

Test the order novel, drama, story, comic repeated through the pile. Each novel has a drama immediately below it, satisfying the first rule. Each story-book has a comic immediately below it, satisfying the second. And no story-book touches a novel, since the drama above it and the comic below it keep them apart - the comic separating each story-book from the novel that begins the next group of four.

Your Answer : (Not Answered)

Correct Answer : B

The proper sequence is RSQP.

The sentence reads: 'The students knew that our new Principal (R) took a number of strong measures (S) in the college administration (Q) to control unruly students (P).'

R is the subject and S the verb with its object; Q says where the measures were taken and P their purpose. RSPQ is close but leaves 'in the college administration' dangling after the purpose, and PQRS and QRPS do not begin with the subject.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: QSRP

The sentence reads:

Those who cannot treat others well should not expect others to treat them well.

Those who needs a verb immediately, and Q supplies it; S completes that clause with the object of treat. R then begins the main clause, and P completes it. Note that S carries two jobs - it ends the relative clause and begins the infinitive that P governs.

Your Answer : (Not Answered)

Correct Answer : D

The misspelt word is transferred, written here as 'Transfered'.

The r doubles because transfer is stressed on the last syllable. The same rule gives referred and preferred, while offered and suffered keep one r.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Rhythm

The correct spelling is rhythm - famously one of the longest English words with no conventional vowel letter, since the y does all the vocalic work. It comes through Latin from the Greek rhuthmos, meaning measured flow, and the initial rh is the standard English rendering of the Greek letter rho with a rough breathing. A common mnemonic takes the initials of Rhythm Helps Your Two Hips Move. The rh- group is worth learning together, since every member is a spelling trap: rhetoric, rheumatism, rhinoceros, rhododendron, rhapsody and rhubarb. The adjective is rhythmic or rhythmical, keeping the same awkward cluster.

Your Answer : (Not Answered)

Correct Answer : A

It is a bird that lives on decaying flesh.

A scavenger is an animal that feeds on carrion or refuse - the vulture and the hyena are the standard examples. The word once meant a street cleaner, which is where its figurative uses come from.

Your Answer : (Not Answered)

Correct Answer : B

The answer is an: She spent an hour waiting for him.

In hour the h is silent, so the word begins with a vowel sound ('our'), and the indefinite article before a vowel sound is an. The same applies to honest and heir.

A is the trap for anyone going by the letter h. The would mean a particular hour already mentioned, and zero article is wrong before a singular countable noun.

Your Answer : (Not Answered)

Correct Answer : D

The synonym of TEDIOUS is Boring.

Tedious describes something too long, slow or dull to hold one's interest, so a tedious lecture is a boring one. Its noun is tedium, and close synonyms are monotonous, wearisome and dull.

Exciting means the opposite. Intellectual describes the content of a lecture, which may be tedious or not, and ordinary means unremarkable rather than tiresome, so neither carries the sense of weariness that tedious has.

Your Answer : (Not Answered)

Correct Answer : B

The idiom is 'burst into flames'. 'Burst in' means to enter suddenly and does not take 'flames'. 'Burst onto' is used for appearing suddenly, as on a scene. 'Bursts out' has a third person singular verb that does not agree with 'The jeep crashed and', which is in the past tense. Only 'burst into' completes the sentence correctly. The same phrase appears in 'the car burst into flames', which is the common use of the idiom after a crash.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: a small, very fast storage location inside the processor

A register is a small storage location built directly into the processor, typically holding one word - 32 or 64 bits - and accessible in a single cycle. Registers are the fastest storage in the machine and sit at the top of the memory hierarchy, above cache, main memory and disk. They are few in number precisely because they are expensive in silicon area, and a large part of what a compiler does is decide which values are worth keeping in them. Several have fixed roles. The program counter holds the address of the next instruction; the instruction register holds the instruction being decoded; the accumulator holds arithmetic results in simpler architectures; the memory address and memory buffer registers interface with memory; the stack pointer tracks the top of the stack; and the status or flag register holds the zero, carry, sign and overflow bits that conditional branches test. General-purpose registers hold whatever the program needs.

Your Answer : (Not Answered)

Correct Answer : D

Correct answer: 2000

A single-stage crossbar needs one crosspoint for every input-output pair:

\[ 40\times 50 = 2000 \]

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: IR

Handheld organisers exchanged data by lining up their infrared ports, which needed no cable and no configuration. USB and FireWire connect a PDA to a computer rather than to another PDA.

Your Answer : (Not Answered)

Correct Answer : C

The ozone layer protects us from ultraviolet rays.

Ozone absorbs strongly between about 200 and 320 nm, screening out almost all UV-C and most UV-B - the wavelengths that damage DNA and cause skin cancer and cataract. Visible light and infrared pass through freely.

Your Answer : (Not Answered)

Correct Answer : A

Ferdinand de Lesseps designed it.

The French diplomat obtained the concession and built the Suez Canal between 1859 and 1869, joining the Mediterranean to the Red Sea without locks. His later attempt on the Panama Canal ended in bankruptcy and scandal.

Your Answer : (Not Answered)

Correct Answer : A

A red blood cell lives about 120 days. Having no nucleus it cannot repair itself, and it is eventually broken down in the spleen and liver.

The bone marrow replaces about two million of them every second to keep the count steady.

Your Answer : (Not Answered)

Correct Answer : B

The Jungle Book was written by Rudyard Kipling, published in 1894.

He wrote it in Vermont, drawing on his Indian childhood. Mowgli's stories are set in the Seoni hills of central India. Kipling received the Nobel Prize in Literature in 1907, the first English-language writer to do so.

Your Answer : (Not Answered)

Correct Answer : C

My Son's Father was written by Dom Moraes, published in 1968.

It is the first volume of his autobiography. He had won the Hawthornden Prize at nineteen, the first non-English writer to do so.

Your Answer : (Not Answered)

Correct Answer : A

The products of weathering are the loose material that erosion picks up and carries away, and the sequence ends when that material is laid down again in deposition.

The full chain is weathering → erosion → transport → deposition: rock is first broken down in place, then removed, moved and finally dropped.

Your Answer : (Not Answered)

Correct Answer : A

Silicon Valley is in the United States.

It lies in the southern part of the San Francisco Bay Area in California, around San Jose and Palo Alto. The name, coined in 1971, refers to the silicon chip makers who first clustered there.