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Question :
The term “Rh factor” refers to
Option 1:
Rhesus factor
Option 2:
Rheumatoid factor
Option 3:
Renal factor
Option 4: Rhombic factor
Correct Answer:
Solution : The correct option is - Rhesus factor
The term Rh factor, also known as the Rhesus factor, refers to a protein that can be present on the surface of red blood cells. This protein is an inherited trait and is one of the key
Question : If the density of oxygen is 16 times that of hydrogen, what will be their corresponding ratio to the velocity of sound?
Option 1: 4:1
Option 2: 2:1
Option 3: 1:16
Option 4: 1:4
Correct Answer: 1:4
Solution : The correct option is 1:4.
If the density of oxygen is 16 times that of hydrogen, the ratio of their velocities of sound will be the same as the ratio of their densities
The velocity of sound from oxygen to hydrogen is 1:4.
v=√γP/ρ.
Question : Which of the following is a basic characteristic of 'Oligopoly'?
Option 1: Many sellers, Many buyers
Option 2: Few sellers, Few buyers
Option 3: Few sellers, Many buyers
Option 4: Many sellers, Few buyers
Correct Answer: Few sellers, Many buyers
Solution : The correct answer is Few sellers, Many buyers
In an oligopoly, there is limited competition in the market, shared by a small number of sellers and a large number of buyers. An oligopoly is described as an imperfect market because it has
Question : Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
Coca-Cola is to become the new sponsor of the London Eye after (1) ______ a deal to replace France's EDF Energy. The capital's giant Ferris Wheel has been a (2) ______ tourist attraction since it was introduced in 2000, when it was (3) ______ as the Millennium Wheel. It was previously (4) ______ by British Airways before becoming the EDF Energy London Eye in 2011. Coca-Cola will take over in January after (5) ______ a two-year deal with the wheel's owner, Merlin Entertainments, for an undisclosed sum.
Select the most appropriate option to fill in the blank number 3.
Option 1: Based
Option 2: Inscribed
Option 3: Published
Option 4: Known
Correct Answer: Known
Solution : The correct choice is the fourth option.
Known means something that is recognisable or familiar, and it is the appropriate word to use to convey the intended meaning that previously people recognised it with the name of the Millennium Wheel.
Therefore, the complete sentence
Question : Directions: In the question, a part of the sentence is in bold. Below are given alternatives to the bold part at (1), (2), and (3) that may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (4).
Listen attention to what I say.
(1) attentively
(2) attend
(3) attentive
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The sentence can be improved using the first option.
The first option is the correct choice as it provides the appropriate adverb attentively to describe how the listener should listen. Attentively means paying attention to and focusing on something, which fits the context of
Question : In the given sentence, identify the segment that contains a grammatical error.
'Occupation' means the work or job people do to earning money.
Option 1: to earning money
Option 2: the work or job
Option 3: 'Occupation' means
Option 4: people do
Correct Answer: to earning money
Solution : The correct choice is the first option.
The verb should be in the base form, i.e., earn to make the correct infinitive form.
Therefore, the correct sentence is: 'Occupation' means the work or job people do to earn money.
Question : In $\Delta$PQR, $\angle$P : $\angle$Q : $\angle$R = 2 : 2 : 5. A line parallel to QR is drawn which touches PQ and PR at A and B respectively. What is the value of $\angle$PBA – $\angle$PAB?
Option 1: 60º
Option 2: 30º
Option 3: 20º
Option 4: 50º
Correct Answer: 60º
Solution :
In a triangle, the angles are in the ratio 2 : 2 : 5. Let the angles are $2x$, $2x$, and $5x$ respectively, where $x$ is a constant. Since the sum of the angles in a triangle is \(180^\circ\). $⇒2x + 2x + 5x =
Question : If $0°<\theta<90°$ and $2\sec\theta =3 \operatorname{cosec}^2 \theta$, then $\theta$ is:
Option 1: $\frac{\pi}{6}$
$\frac{\pi}{4}$
$\frac{\pi}{3}$
Option 4:
$\frac{\pi}{5}$
Solution : Given: $0°<\theta<90°$ and $2\sec\theta =3 \operatorname{cosec}^2 \theta$ $2\sec\theta =3 \operatorname{cosec}^2 \theta$ $⇒\frac{2}{\cos\theta}=\frac{3}{\sin^2\theta}$ Squaring both sides, we get, $\frac{4}{\cos^2\theta}=\frac{9}{\sin^4\theta}$ $⇒4\sin^4\theta+9\sin^2\theta-9=0$ $⇒(\sin^2\theta+3)(4\sin^2\theta-3)=0$ $\therefore \sin\theta= \sqrt{-3} , \frac{\sqrt{3}}{2}$ The value of $\sin\theta$ can't be $\sqrt{-3}$. $⇒\sin\theta= \frac{\sqrt{3}}{2}=\sin60°$ $\therefore \theta=60°=\frac{\pi}{3}$ Hence, the correct answer is $\frac{\pi}{3}$.
Question : A can complete a piece of work in 9 days. B and C can complete the same work in 12 days and 18 days respectively. If A, B, and C work together, then in how many days will they complete the work?
Option 1: 10 days
Option 2: 8 days
Option 3: 4 days
Option 4: 15 days
Correct Answer: 4 days
Solution : 1 day's work of A = $\frac{1}{9}$ 1 day's work of B = $\frac{1}{12}$ 1 day's work of A = $\frac{1}{18}$ 1 day's work of (A + B + C) $=\frac{1}{9}+\frac{1}{12}+\frac{1}{18}=\frac{4+3+2}{36}=\frac{9}{36}$ $\therefore$ So they can complete the whole work in $\frac{36}{9}$ = 4 days
Question : Find the average speed of a boy if he walks $\frac{1}{6}$th distance with a speed of 5 km/hr and rides a bike to cover the remaining distance at a speed of 25 km/hr. The total distance is 60 km.
Option 1: 15 km/hr
Option 2: 20 km/hr
Option 3: 12 km/hr
Option 4: 13 km/hr
Correct Answer: 15 km/hr
Solution : Given: A boy walks $\frac{1}{6}$th distance with a speed of 5 km/hr and rides a bike to cover the remaining distance at a speed of 25 km/hr. The total distance is 60 km. The distance covered on foot = $\frac{60}{6}$ = 10 km The
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