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Question : The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error from the given options. If you don't find any error, mark 'No Error' as your answer. A child learnt the basics of / his mother tongue mainly from / his interactions with the mother.
Option 1: his mother tongue mainly from
Option 2: No Error
Option 3: A child learnt the basics of
Option 4: his interactions with the mother
Correct Answer: A child learnt the basics of
Solution : The correct choice is the third option.
Explanation: The error lies in the use of "learnt", which is a less common word in British English spelling. The more widely accepted spelling is "learned" in both American and British English.
Question : Sentences of a paragraph are given below. While the first and the last sentences (S1 and S6) are in the correct order, the sentences in between are jumbled up and named P, Q, R, and S. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.
(S1) Newspapers, especially of the popular variety, aim to do two things: to inform and to entertain.
(P) Entertainment may be principally found in the centre pages of the newspaper in some of the feature articles and in some local news stories. (Q) The principal aim of the short news report on the front pages is to inform. (R) Most newspapers are published daily, and the news reporters must make sure that they have up-to-the-minute news. (S) In their news reports, they will aim to create a sense of immediacy, to convey the impression that they have 'rushed' the news to the reader and 'that the information contained in the very latest.'
(S6) Reporters also wish to create a sense of authenticity, that is, that their news is accurate and genuine.
Option 1: Q, S, R, P
Option 2: R, P, S, Q
Option 3: S, R, P, Q
Option 4: P, Q, R, S
Correct Answer: P, Q, R, S
Solution : The correct order is the fourth option, i.e., P, Q, R, S.
Sentence (P) comes first after S1 because it expands on the aspect of entertainment. After that, sentence (Q) is the most appropriate because it introduces the primary purpose
Question : Directions: In a certain language REKHA is written as NOPST, RESHAM is written as NOHSTQ and SHYAM is written as HSLTQ. What will be SHAME written as?
Option 1: SHQTO
Option 2: HSTQO
Option 3: HSTOQ
Option 4: SHQOT
Correct Answer: HSTQO
Solution : Given: REKHA is written as NOPST, RESHAM is written as NOHSTQ and SHYAM is written as HSLTQ.
Each letter of the word is assigned an individual letter code – R→N, E→O, K→P, H→S, A→T Thus, REKHA is written as NOPST. And, RESHAM is written as
Question : A and B can do a work in $26 \frac{2}{3}$ days. B and C together can complete the same work in 48 days, while A and C together can complete the same work in 30 days. How long (in days) will A alone take to complete 60% of the work?
Option 1: 20
Option 2: 32
Option 3: 24
Option 4: 36
Correct Answer: 24
Solution : Use : Work = Efficiency × Time According to the question LCM of $\frac{80}{3}$, 48 and 30 = 720 ⇒ Efficiency of A and B = 720 × $\frac{3}{80}$ = 27 ⇒ Efficiency of B and C = $\frac{720}{48}$ = 15 ⇒ Efficiency of A
Question : For which discovery did William Bradford Shockley, John Bardeen and Walter Houser Brattain jointly receive the Nobel Prize in Physics in 1956?
Option 1: Discovery of transistor effect
Option 2: Discovery of thermionic emission
Option 3: Discovery of electromagnetic induction
Option 4: Discovery of receptors for temperature and touch
Correct Answer: Discovery of transistor effect
Solution : The correct answer is the Discovery of the transistor effect.
The Nobel Prize for Physics in 1956 was jointly awarded to William Bradford, John Bardeen, and Walter Houser Brattain for their discovery of the transistor effect. They were awarded jointly for their
Question : A kite is flying at a height of 50 metres. If the length of the string is 100 metres, then the inclination of the string to the horizontal ground in degree measure is:
Option 1: 90°
Option 2: 60°
Option 3: 45°
Option 4: 30°
Correct Answer: 30°
Solution : Given: A kite is flying at a height of 50 metres. The length of the string is 100 metres. We know that $\sin\theta=\frac{\text{perpendicular}}{\text{hypotenuse}}$ $\text{Hypotenuse}$ = 100 m $\text{Perpendicular}$ = 50 m ⇒ $\sin\theta=\frac{50}{100}$ ⇒ $\sin\theta=\frac{1}{2}$ ⇒ $\sin\theta=\sin30°$ ⇒ $\theta=30°$ Hence, the correct answer is 30°.
Question : The angle of elevation of an aeroplane from a point on the ground is 45°. After flying for 15 seconds, the elevation changes to 30°. If the aeroplane is flying at a height of 2500 metres, then the speed of the aeroplane in km/h is:
Option 1: $600$
Option 2: $600(\sqrt{3}+1)$
Option 3: $600\sqrt{3}$
Option 4: $600(\sqrt{3}–1)$
Correct Answer: $600(\sqrt{3}–1)$
Solution : Let the vertical height be $h$ and horizontal distance be $B_{1}$ when the elevation is 45° and $B_{2}$ when the elevation is 30°. Using trigonometry ratio, when elevation is 45°. $\tan\theta =\frac{\text{Height}}{\text{Distance}}$ ⇒ $\tan45° = \frac{h}{B_{1}}$ ⇒ $1 = \frac{h}{B_{1}}$ ⇒ $B_{1} = h$ Using
Question : Which of the following is measured in its SI-derived unit called Tesla?
Option 1: Magnetic flux density
Option 2: Luminous flux
Option 3: Capacitance
Option 4: Illuminance
Correct Answer: Magnetic flux density
Solution : The correct option is Magnetic flux density.
Magnetic flux density is the physical quantity that is measured in its SI-derived unit, the Tesla. In the International System of Units (SI), the magnetic flux density is measured in Tesla (symbol: T). It bears
Question : Select the most appropriate ANTONYM of the underlined word.
The manager decided to resign from his post as the bank was declared to be insolvent.
Option 1: Independent
Option 2: Commercial
Option 3: Affluent
Option 4: Bankrupt
Correct Answer: Affluent
Explanation:
The word insolvent describes a situation where an individual or organisation is unable to meet financial obligations and is, in essence, bankrupt. To find the antonym, we look for a word that indicates financial prosperity or wealth.
Question : A merchant purchases a wristwatch for Rs. 450 and fixes its list price in such a way that, after allowing a discount of 10%, he earns a profit of 20%. Find the list price of the watch.
Option 1: Rs. 480
Option 2: Rs. 450
Option 3: Rs. 600
Option 4: Rs. 540
Correct Answer: Rs. 600
Solution : Cost price of the watch = Rs. 450 Profit percentage = 20% The selling price of the watch = cost price + profit = $450 + 20$% of $450$ = $450 + \frac{20 × 450}{100}$ = $450+\frac{9000}{100}$ = $450 + 90$ = $540$ Discount
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