Staff Selection Commission Combined Graduate Level Exam
Question : The length and breadth of a rectangle are 8 cm and 6 cm, respectively. The rectangle is cut on its four vertices such that the resulting figure is a regular octagon. What is the length of the side (in cm) of the octagon?
Option 1: $3\sqrt{11}-7$
Option 2: $5\sqrt{13}-8$
Option 3: $5\sqrt{7}-11$
Option 4: $6\sqrt{11}-9$
Correct Answer: $3\sqrt{11}-7$
Solution : Given: The length and breadth of a rectangle are 8 cm and 6 cm, respectively. The rectangle is cut on its four vertices such that the resulting figure is a regular octagon. Let the sides of the octagon be $a$ cm. From the figure, we
Question : Who succeeded Guru Nanak ?
Option 1: Guru Angad
Option 2: Guru Ramdas
Option 3: Guru Arjan
Option 4: Guru Hargobind
Correct Answer: Guru Angad
Solution :
Correct answer is Guru Angad
Guru Nanak was the most famous Sikh guru as he founded the Sikh religion. Guru Nanak was born in 1469 and passed away in 1539. Next guru was Guru Angad, his name at birth was Lehina but Guru Nanak
Question : Yellow Fever is transmitted by
Option 1: Aedes
Option 2: Anopheles
Option 3: House-fly
Option 4: Culex
Correct Answer: Aedes
Solution : The correct option is Aedes.
Yellow fever is a mosquito-borne illness caused by the yellow fever virus. The virus spreads by the bite of an infected Aedes aegypti mosquito. Mosquitoes of the genus Aedes aegypti are widespread in tropical and subtropical locations across the world,
Question : In which state is the Chithirai festival celebrated?
Option 1: Punjab
Option 2: Tamil Nadu
Option 3: Rajasthan
Option 4: Meghalaya
Correct Answer: Tamil Nadu
Solution : The correct option is Tamil Nadu.
The Chithirai festival is the most significant annual festival celebrated in the city of Madurai. It usually takes place in the Tamil month of Chithirai (nearly the months of April and May).
Question : PQRS is a cyclic quadrilateral and PQ is the diameter of the circle. If $\angle RPQ=38°$, what is the value (in degree) of $\angle PSR$?
Option 1: 52°
Option 2: 77°
Option 3: 128°
Option 4: 142°
Correct Answer: 128°
Solution : Given: PQRS is cyclic quadrilateral and PQ is the diameter of the circle and $\angle RPQ=38°$. We know that the sum of the opposite angles of a cyclic quadrilateral is 180°. Also, the sum of all the angles in the triangle is 180°. Also, at
Question : Motilal Nehru and C. R. Das were the founders of a party known as the:
Option 1: Ghadar Party
Option 2: Forward Bloc
Option 3: Swaraj Party
Option 4: Socialist Congress
Correct Answer: Swaraj Party
Solution : The correct option is Swaraj Party.
Motilal Nehru and C.R. Das were the founders of the Swaraj Party. The Swaraj Party was a political party established in 1923 as a response to the Montagu-Chelmsford Reforms introduced by the British government. The party was
Question : Photoperiodism affects
Option 1: All of these
Option 2: Flowering
Option 3: Vegetative growth
Option 4: Fruiting
Correct Answer: All of these
Solution : The correct option is all of these.
Photoperiodism is a critical biological reaction in plants that is controlled by the duration of the day. It is in charge of flowering, fruiting, and vegetative growth. Short-day plants flower when the days are less than
Question : Directions: Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: Some fingers are toes. Some toes are rings. Some rings are hands. Conclusions: I. Some hands are toes. II. Some rings are fingers. III. Some hands are fingers. IV. Some fingers are rings.
Option 1: None of the conclusions follow
Option 2: Only conclusions III and IV follow
Option 3: Only conclusions II and III follow
Option 4: Only conclusions I and II follow
Correct Answer: None of the conclusions follow
Solution : The possible Venn diagram according to the given statements is as follows –
Let's analyse the conclusions – Conclusion I: Some hands are toes – From the Venn diagram, it is evident that there is no direct relation between hands and
Question : Who created the first mechanical prototype for future computers?
Option 1: John Sullivan
Option 2: John Harrison
Option 3: Cai Lun
Option 4: Charles Babbage
Correct Answer: Charles Babbage
Solution : The correct option is Charles Babbage.
English scientist and computer pioneer Charles Babbage created the analytical engine, a mechanical general-purpose computer. Babbage is regarded as the father of the computer. He was a mathematician, philosopher, and polymath from Britain. He invented the computer in
Question : Directions: Which two signs and two numbers should be interchanged in the following equation to make it correct? 20 – 10 × 342 ÷ 19 + 51 = 211
Option 1: 51 and 20, – and +
Option 2: 20 and 342, – and ÷
Option 3: 10 and 20, – and ×
Option 4: 19 and 342, × and ÷
Correct Answer: 51 and 20, – and +
Solution : Given: 20 – 10 × 342 ÷ 19 + 51 = 211
Interchange the numbers and signs in the options one by one in the given equation. First option: 51 and 20, – and + 20 – 10 × 342
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