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Question : Coromandel Coast gets most of its rain during the winter season because:
Option 1: The winds from the Indian Ocean are obstructed by the Eastern Ghats.
Option 2: The cyclones from the Indian Ocean are obstructed by the Western Ghats.
Option 3: The Northeast monsoons pick up moisture from the Bay of Bengal and these winds are obstructed by the Eastern Ghats.
Option 4: The Northwest monsoons pick up moisture from the Arabian Sea and these winds are obstructed by the Western Ghats.
Correct Answer: The Northeast monsoons pick up moisture from the Bay of Bengal and these winds are obstructed by the Eastern Ghats.
Solution : The correct answer is The Northeast monsoons pick up moisture from the Bay of Bengal and these winds are obstructed by the Eastern Ghats.
The
Question : ______ solids are formed by the three-dimensional arrangements of cations and anions bound by strong coulombic (electrostatic) forces.
Option 1: Metallic
Option 2: Covalent
Option 3: Ionic
Option 4: Molecular
Correct Answer: Ionic
Solution : The correct answer is Ionic.
The interaction that takes place in ionic compounds is called ionic bonding, which is a kind of chemical bonding that involves the electrostatic attraction between oppositely charged ions or between two atoms with dramatically differing Electronegativity.
Question : The average mark obtained by 180 students in an examination is 50. If the average mark of passed students is 80 and that of the failed students is 40, then what is the number of students who failed the examination?
Option 1: 90
Option 2: 135
Option 3: 100
Option 4: 45
Correct Answer: 135
Solution : Let the number of failed students be $x$. Total marks obtained = 180 × 50 = 9000 According to the question, 40$x$ + (180 – $x$) × 80 = 9000 ⇒ 40$x$ + 14400 – 80$x$ = 9000 ⇒ 40$x$ = 5400 ⇒ $x$ =
Question : Find the part of the given sentence that has an error in it. If there is no error, choose 'No Error'. When you're chatting on the phone, do it in the living room instead off the kitchen.
Option 1: No Error
Option 2: When you're chatting on
Option 3: the phone, do it in the living room
Option 4: instead off the kitchen.
Correct Answer: instead off the kitchen.
Solution : The error lies in the fourth option.
The correct phrase is "instead of", not "instead off". Instead of means in place of or as an alternative to something. Use "instead of" when comparing two things or options. "Off" is used to
Question : Study the given bar graph and answer the question that follows. The bar graph shows the export of rice (in lakhs) during five years. In how many years was the export of rice less than the average export for the five years?
Option 1: 4
Option 2: 1
Option 3: 3
Option 4: 2
Correct Answer: 3
Solution : The total export for the five years = 10.4 + 13 + 15.6 + 21.6 + 18.8 = 79.4 lakh tons of rice $\therefore$ The average yearly export = $\frac{79.4}{5}$ = 15.88 lakh tons of rice per year. The exports were less than the average
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per mirror image properties, closer things appear closer to the mirror in reflection. If a mirror is placed on line MN according to the given figure, the top and bottom sides of the figure will swap positions. Therefore, what was once on the top side
Question : If $a+b=10$ and $ab=6$, then the value of $a^3+b^3$ is:
Option 1: 800
Option 2: 820
Option 3: 860
Option 4: 840
Correct Answer: 820
Solution : According to the question, $a + b$ = 10 and $ab$ = 6 ⇒ $(a + b)^{2}$ = 102 ⇒ $a^{2} + 2ab + b^{2}$ = 100 ⇒ $a^{2} + 2(6) + b^{2}$ = 100 ⇒ $a^{2} + 12 + b^{2}$ = 100 ⇒ $a^{2}
Question : Which of the following is not a computer network?
Option 1: Wide area network
Option 2: Local area network
Option 3: Personal network
Option 4: Metropolitan area network
Correct Answer: Personal network
Solution : The correct option is Personal network.
While the phrase "personal network" can be used informally to represent a person's collection of devices (e.g., cell phones, laptops, tablets) for personal computing and communication, it is not a traditional type of computer network like a
Question : Directions: In this question, three statements are given, followed by three conclusions numbered I, II, and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follows/follow from the statements. Statements: Some mirrors are glass. All glasses are taps. Some taps are pens. Conclusions: I. Some glass are mirrors. II. All taps are glass. III. Some pens are taps.
Option 1: None of the conclusions follows
Option 2: Only conclusions I and II follow
Option 3: Only conclusion II follows
Option 4: Only conclusions I and III follow
Correct Answer: Only conclusions I and III follow
Solution : The possible Venn diagram according to the given statements –
Let's analyse the conclusions – Conclusion I: Some glass are mirrors – From the above Venn diagram, it is evident that the circles representing glass and mirror overlap each other
Question : What is the value of $\cos ^2 15°?$
Option 1: $(2+\sqrt{3})$
Option 2: $\frac{(2+\sqrt{3})}{4}$
Option 3: $\frac{(2+\sqrt{3})}{2}$
Option 4: $\frac{(1+\sqrt{3})}{2}$
Correct Answer: $\frac{(2+\sqrt{3})}{4}$
Solution : According to the formula, $\cos 2A = 2\cos^2 A - 1$ Let A = 15° ⇒ $\cos 30° = 2\cos^2 15° - 1$ ⇒ $\cos^2 15° = \frac{\cos 30°+1}{2}$ ⇒ $\cos^2 15° = \frac{\frac{\sqrt3}{2}+1}{2}$ $\therefore\cos^2 15°=\frac{\sqrt3 + 2}{4}$ Hence, the correct answer is $\frac{2+\sqrt3}{4}$.
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