Instruction
- Total number of questions : 20
- Time allotted : 30:00 Minutes:Seconds.
- Each question carry 1 mark, no negative marks.
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- All the best
Quantitative Aptitude [ Question No: 1 To 2 ] :
The sum of the series \(1 - 2 + 3 - 4 + ...\) up to 100 terms is:
There is a 10% discount on a dozen pairs of trousers marked at Rs. 8000. How many pair of trousers can be bought with Rs. 2400?
Reasoning [ Question No: 3 To 4 ] :
Direction for [ Question No: 3 To 3 ] :
In each question below is given a statement followed by two assumptions numbered I and II. You have to consider the statement and the following assumptions and decide which of the assumptions is implicit in the statement.
Give answer
- (A) If only assumption I is implicit
- (B) If only assumption II is implicit
- (C) If either I or II is implicit
- (D) If neither I nor II is implicit
- (E) If both I and II are implicit.
Statement: Please note that the company will provide accommodation to only outside candidates if selected.' - A condition in an advertisement.
Assumptions:
1. The local candidates would be having some other arrangement for their stay.
2. The company plans to select only local candidates.
Fact 1: Humans are mammals.
Fact 2: Some humans are engineers.
Fact 3: Engineers build houses.
If the above statements are facts, which of the following can be logically inferred?
I. All mammals build houses.
II. Engineers are mammals.
III. Some humans are not engineers.
English Language [ Question No: 5 To 6 ] :
Computer Awareness [ Question No: 7 To 8 ] :
What is placed to the left of horizontal scroll bar
The function(s) performed by the paging software is (are)
General Awareness / General Knowledge (GK) [ Question No: 9 To 10 ] :
The National Deworming Day (NDD) is celebrated on which date in India?
World Human Rights Day is observed on:
Microbiology [ Question No: 11 To 11 ] :
All of the following are true of antigen EXCEPT which one of the following?
Analog Electronics [ Question No: 12 To 13 ] :
If a full wave rectifier circuit is operating from 50 Hz mains, then the fundamental frequency in the ripple will be :
What breaks the thermal runaway loop in an emitter-biased stage?
Artificial Intelligence [ Question No: 14 To 14 ] :
Consider the following statements about knowledge acquisition.
1. Experts often cannot articulate knowledge they apply automatically.
2. Protocol analysis records an expert solving a real case.
3. Acquisition was a minor part of the cost of building these systems.
Which of the statements given above is or are correct?
Atmospheric Dynamics [ Question No: 15 To 15 ] :
Which energy conversion drives baroclinic growth?
Cloud Computing [ Question No: 16 To 16 ] :
Consider the following statements about secrets in application code.
1. A credential committed to a repository must be treated as compromised.
2. Secrets belong in a managed secret store rather than in source.
3. Removing the commit from history makes the credential safe again.
Compiler Design [ Question No: 17 To 17 ] :
A table driven code generator describes the target machine in
Environmental Pollution and Control [ Question No: 18 To 18 ] :
Which one of the following units of sewage treatment plant is used for removal of dissolved substances ?
Environmental Science [ Question No: 19 To 19 ] :
Which of the following is not a green-house gas ?
Library and Information Science [ Question No: 20 To 20 ] :
Arrange the following classification schemes in a sequence of their year of publication :
(a) DDC
(b) CC
(c) Broad System of Ordering
(d) UDC
Total number of questions : 20
Number of answered questions : 0
Number of unanswered questions : 20
Quantitative Aptitude [ Question No: 1 To 2 ] :
The sum of the series \(1 - 2 + 3 - 4 + ...\) up to 100 terms is:
Your Answer : (Not Answered)
Correct Answer : B
Group the 100 terms into 50 consecutive pairs.
\[ (1-2) + (3-4) + \cdots + (99-100) \]
\[ = 50 \times (-1) = -50 \]
With an odd number of terms the last one would be unpaired and the sum positive.
There is a 10% discount on a dozen pairs of trousers marked at Rs. 8000. How many pair of trousers can be bought with Rs. 2400?
Your Answer : (Not Answered)
Correct Answer : C
Find the discounted price of the dozen first, then the price of one pair.
\[ \text{price of 12 pairs} = 8000 \times 0.90 = \text{Rs. } 7200 \]
\[ \text{price of 1 pair} = \frac{7200}{12} = \text{Rs. } 600 \]
\[ n = \frac{2400}{600} = 4 \]
Dividing Rs. 2400 by the undiscounted unit price of \( 8000/12 = 666.67 \) gives 3.6, which rounds down to 3 - the discount must be applied before the division, not after.
Reasoning [ Question No: 3 To 4 ] :
Direction for [ Question No: 3 To 3 ] :
In each question below is given a statement followed by two assumptions numbered I and II. You have to consider the statement and the following assumptions and decide which of the assumptions is implicit in the statement.
Give answer
- (A) If only assumption I is implicit
- (B) If only assumption II is implicit
- (C) If either I or II is implicit
- (D) If neither I nor II is implicit
- (E) If both I and II are implicit.
Statement: Please note that the company will provide accommodation to only outside candidates if selected.' - A condition in an advertisement.
Assumptions:
1. The local candidates would be having some other arrangement for their stay.
2. The company plans to select only local candidates.
Your Answer : (Not Answered)
Correct Answer : A
The statement mentions that the company intends to provide accommodation only to outside candidates. This means that local candidates would have to arrange accommodation on their own and that the company may select local as well as outside candidates. Thus, only I is implicit.
Fact 1: Humans are mammals.
Fact 2: Some humans are engineers.
Fact 3: Engineers build houses.
If the above statements are facts, which of the following can be logically inferred?
I. All mammals build houses.
II. Engineers are mammals.
III. Some humans are not engineers.
Your Answer : (Not Answered)
Correct Answer : B
The answer is III only.
Statement I does not follow: the facts say humans are mammals and engineers build houses, but nothing makes every mammal an engineer or a builder. Statement II does not follow either: some humans are engineers, but the facts never say that every engineer is human, so engineers as a class need not be mammals.
Statement III is taken to follow from Fact 2 read in its everyday sense: saying that some humans are engineers implies that not all of them are, so some humans are not engineers. (In strict syllogistic logic 'some' does not exclude 'all', which is why this question is sometimes argued; the key adopts the everyday reading.) The options containing I or II are therefore wrong.
English Language [ Question No: 5 To 6 ] :
Your Answer : (Not Answered)
Correct Answer : D
It is benefited.
One t. The final consonant doubles only when the last syllable is stressed, and benefit is stressed on the first, so it follows offered and profited rather than permitted.
Your Answer : (Not Answered)
Correct Answer : A
It is air.
To vanish into thin air is the idiom, from Shakespeare's Tempest. An heir inherits, and its h is silent, so the two are pronounced identically.
Computer Awareness [ Question No: 7 To 8 ] :
What is placed to the left of horizontal scroll bar
Your Answer : (Not Answered)
Correct Answer : B
Correct answer: View buttons
The small buttons at the left end of the horizontal scroll bar switch between Normal, Web Layout, Print Layout, Outline and Draft views.
The function(s) performed by the paging software is (are)
Your Answer : (Not Answered)
Correct Answer : D
Correct answer: All of the above
The paging software does all three: it implements each program’s address environment, mapping virtual pages to frames; it manages the physical address space, deciding which frames are occupied and which page to evict; and it enforces sharing and protection, letting two processes map the same frame while denying access outside their own pages.
General Awareness / General Knowledge (GK) [ Question No: 9 To 10 ] :
The National Deworming Day (NDD) is celebrated on which date in India?
Your Answer : (Not Answered)
Correct Answer : B
National Deworming Day is observed in India on 10 February.
Children between 1 and 19 are given a single albendazole tablet at schools and anganwadis. Intestinal worms cause anaemia and malnutrition and affect a very large share of Indian children.
World Human Rights Day is observed on:
Your Answer : (Not Answered)
Correct Answer : B
World Human Rights Day is observed on 10 December.
The UN General Assembly adopted the Universal Declaration of Human Rights on that day in 1948, and the day has been observed since 1950.
Microbiology [ Question No: 11 To 11 ] :
All of the following are true of antigen EXCEPT which one of the following?
Your Answer : (Not Answered)
Correct Answer : D
Correct answer: They contain paratopes
A paratope is the antigen-binding site of an antibody, so it belongs to the antibody, not to the antigen. The antigen carries epitopes, also called antigenic determinants - the two terms are synonyms, which is why two of the other options say the same thing - and it is those that the paratope binds.
Analog Electronics [ Question No: 12 To 13 ] :
If a full wave rectifier circuit is operating from 50 Hz mains, then the fundamental frequency in the ripple will be :
Your Answer : (Not Answered)
Correct Answer : D
The fundamental ripple frequency is 100 Hz.
A full wave rectifier turns both half cycles of the input into positive pulses, so the output contains two pulses in every input cycle. With 50 Hz mains the output repeats every 10 ms, and the lowest frequency in the ripple is 2 × 50 = 100 Hz.
50 Hz is the ripple frequency of a half wave rectifier, which passes only one pulse per cycle. 25 Hz would need one pulse every two cycles, and 70.7 Hz looks like 50 × √2, mixing up an rms factor with a frequency.
What breaks the thermal runaway loop in an emitter-biased stage?
Your Answer : (Not Answered)
Correct Answer : B
As collector current rises, the emitter resistor's drop rises and eats into the base-emitter forward bias, reducing the current - negative feedback acting against the thermal positive feedback. The collector resistor limits the extreme but does not regulate, leakage does not saturate, and the divider's resistance barely moves. A positive feedback loop is beaten by putting a stronger negative one around it, which is the general remedy. Checking the units of each quantity catches a wrong formula before the arithmetic begins.
Artificial Intelligence [ Question No: 14 To 14 ] :
Consider the following statements about knowledge acquisition.
1. Experts often cannot articulate knowledge they apply automatically.
2. Protocol analysis records an expert solving a real case.
3. Acquisition was a minor part of the cost of building these systems.
Which of the statements given above is or are correct?
Your Answer : (Not Answered)
Correct Answer : C
Tacit knowledge and the techniques developed to reach it are correctly described, but acquisition dominated rather than trailed the cost, which is why it was named a bottleneck. Machine learning was eventually the more effective response, replacing elicitation with induction from data. The third statement inverts the historical record and is the one to reject.
Atmospheric Dynamics [ Question No: 15 To 15 ] :
Which energy conversion drives baroclinic growth?
Your Answer : (Not Answered)
Correct Answer : B
Growing baroclinic waves convert the available potential energy of the meridional temperature gradient into eddy kinetic energy by lifting warm air and lowering cold air. Barotropic instability draws on the horizontal shear of the mean flow instead. Latent heat release amplifies the process but is not the primary conversion in the dry theory, and the final option describes the decay phase of the eddy life cycle. The quantity that varies and the quantity that does not are worth naming before any substitution is attempted.
Cloud Computing [ Question No: 16 To 16 ] :
Consider the following statements about secrets in application code.
1. A credential committed to a repository must be treated as compromised.
2. Secrets belong in a managed secret store rather than in source.
3. Removing the commit from history makes the credential safe again.
Your Answer : (Not Answered)
Correct Answer : D
The first two are correct and are standard practice. The third is unsafe, because the credential may already have been read and rewriting history does not reach every clone or cache. Rotation is the only reliable remedy, and the commit removal is merely tidying up.
Compiler Design [ Question No: 17 To 17 ] :
A table driven code generator describes the target machine in
Your Answer : (Not Answered)
Correct Answer : D
Machine description languages let a new target be supported by writing a specification rather than code. The approach trades some code quality for much faster retargeting. A hand written back end still wins where the last few per cent matter.
Environmental Pollution and Control [ Question No: 18 To 18 ] :
Which one of the following units of sewage treatment plant is used for removal of dissolved substances ?
Your Answer : (Not Answered)
Correct Answer : A
Dissolved substances are removed in the Activated sludge unit.
Activated sludge is the biological (secondary) treatment step. An aerated tank holds a dense, mixed population of bacteria and protozoa that feed on the dissolved and colloidal organic matter in the sewage, converting it into carbon dioxide, water and new cells. That is how the soluble BOD, which no settling tank can catch, is removed.
The secondary clarifier only settles out the microbial flocs produced in the aeration tank. The grit chamber is a preliminary unit that removes sand and gravel. Sludge digestion treats the separated sludge, not the liquid flow.
Environmental Science [ Question No: 19 To 19 ] :
Which of the following is not a green-house gas ?
Your Answer : (Not Answered)
Correct Answer : B
The gas that is not a greenhouse gas is argon (Ar).
A greenhouse gas absorbs and re-emits infrared radiation. Molecules with three or more atoms, or with an unequal charge distribution, can vibrate in ways that absorb infrared. Argon is a monatomic noble gas with no such vibrations, so although it is about 0.93% of the air, it traps no heat.
Ozone, carbon dioxide and methane are all greenhouse gases: carbon dioxide is the largest human contributor, methane is far more potent per molecule, and ozone in the troposphere also warms the surface.
Library and Information Science [ Question No: 20 To 20 ] :
Arrange the following classification schemes in a sequence of their year of publication :
(a) DDC
(b) CC
(c) Broad System of Ordering
(d) UDC
Your Answer : (Not Answered)
Correct Answer : A
In order of publication the schemes run (a) (d) (b) (c).
- DDC: 1876, Melvil Dewey.
- UDC: 1905, the first full edition by Otlet and La Fontaine, based on DDC.
- CC: 1933, S.R. Ranganathan.
- Broad System of Ordering: 1978, prepared for UNESCO's UNISIST programme.
DDC is the oldest and BSO by far the newest. The option listing (a) (b) (c) (d) misplaces UDC, which came before Ranganathan's scheme, and the other two options do not start with DDC at all.
Marks
Total number of questions : 20
Number of answered questions : 0
Number of unanswered questions : 20