Staff Selection Commission Combined Graduate Level Exam
Question : A sphere has the same curved surface area as a cone, with a vertical height of 40 cm and a radius of 30 cm. The radius of the sphere is:
Option 1: $5 \sqrt 5 \text{ cm}$
Option 2: $5\sqrt 3\text{ cm}$
Option 3: $5\sqrt{15}\text{ cm}$
Option 4: $5\sqrt{10}\text{ cm}$
Correct Answer: $5\sqrt{15}\text{ cm}$
Solution : Given: Curved surface area of sphere = curved surface area of cone Height of cone = 40 cm Radius of cone = 30 cm The slant height $l$ of the cone = $\sqrt{h^2+r^2}$ So, $l=\sqrt{(40)^2+(30)^2}=\sqrt{1600+900}=\sqrt{2500}= 50\text{ cm}$ The curved surface area of the cone
Question : Directions: Select the related letter cluster from the given alternatives. GrtK : KtrG :: FjbH : ?
Option 1: HbjF
Option 2: jHbF
Option 3: FbjH
Option 4: HjbF
Correct Answer: HbjF
Solution : Given: GrtK : KtrG :: FjbH : ?
Reverse the position of the given letters to obtain the required code – Thus, GrtK is coded as KtrG. Similarly, follow the same pattern for FjbH – Thus, FjbH is coded as HbjF. Hence, the first option
Question : The first day of the Tamil calendar on 14th April is celebrated as _______.
Option 1: Mahamaham
Option 2: Onam
Option 3: Pongal
Option 4: Puthandu
Correct Answer: Puthandu
Solution : The correct answer is Puthandu.
Puthandu Festival is the celebration of the Tamil year, and it is the first day of the Tamil New Year. It is observed with grand celebrations, and the meaning of Puthandu is also known as New Year. Puthandu is also
Question : Which of the following is NOT a primary greenhouse gas in the earth's atmosphere?
Option 1: Methane
Option 2: Ozone
Option 3: Nitrous oxide
Option 4: Hydrogen
Correct Answer: Hydrogen
Solution : The correct option is - Hydrogen
Carbon dioxide, methane, nitrous oxide, hydrochlorofluorocarbons (HCFCs) and ozone in the lower atmosphere are the main greenhouse gases. The most significant greenhouse gas released by human activity is carbon dioxide (CO2).
Question : Which of the following folk dances does not belong to the state of Madhya Pradesh?
Option 1: Laho
Option 2: Phulpati
Option 3: Matki
Option 4: Jawara
Correct Answer: Laho
Solution : The correct option is Laho.
The Laho dance is a traditional folk dance of the Jaintia tribe in Meghalaya, India. It is often performed during festivals and special occasions and is characterised by rhythmic movements and vibrant traditional attire. The dance reflects the cultural
Question : The least distance of distinct vision is:
Option 1: 35 cm
Option 2: 25 cm
Option 3: 45 cm
Option 4: 15 cm
Correct Answer: 25 cm
Solution : The correct option is 25 cm.
The closest distance at which an object can be brought into focus while still being regarded as a distinct point is referred to as the near point, or the least distance of distinct vision. The smallest distance at
Question : Directions: Select the related letter cluster from the given alternatives. EGIK : FHJL :: MOQS : ?
Option 1: LNOQ
Option 2: NPRT
Option 3: KMOQ
Option 4: NRPT
Correct Answer: NPRT
Solution : Given: EGIK : FHJL :: MOQS : ?
Add 1 to the place value of each letter of EGIK to obtain the required code – E + 1 = F; G + 1 = H; I + 1 = J; K + 1 = L
Question : Water is not effective in extinguish a fire cause by petrol because
Option 1: The flame is too hot for water to cool it down
Option 2: Water and petrol react chemically
Option 3: Water and petrol are miscible with each other
Option 4: Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn
Correct Answer: Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn
Solution : The correct option is Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn.
Because petrol is lighter than water,
Question : Which one country is not a permanent member of the Security Council of the United Nations?
Option 1: France
Option 2: Germany
Option 3: Russia
Option 4: United States of America
Correct Answer: Germany
Solution : The correct option is - Germany.
The United Nations Security Council is made up of 15 members, with China, France, Russian, the United Kingdom, and the United States serving as its five permanent members. The General Assembly also elects ten non-permanent members for two-year terms.
Question : Direction: The bar shows the number of accidents in a city during the first six months of a year. Examine the bar chart and answer the following question. Compared to January, what is the percentage decrease in accidents in February?
Option 1: 25%
Option 2: 24%
Option 3: 30%
Option 4: 27%
Correct Answer: 24%
Solution : Based on the given graph, accidents in February = 19 There were 25 accidents in January. Reduction in number of accidents = 25 – 19 = 6 Required percentage = $\frac{\text{Number of accidents reduced}}{\text{Number of accidents that occurred in January}}\times 100=\frac{6}{25}\times 100 =24$% Hence, the
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