Staff Selection Commission Combined Graduate Level Exam
Question : A colloidal system in which a liquid is dispersed in a liquid is called
Option 1: gel
Option 2: emulsion
Option 3: sol
Option 4: precipitate
Correct Answer: emulsion
Solution : The correct option is emulsion.
An emulsion is a colloidal system in which one liquid is dispersed in another. Emulsions are colloidal suspensions comprising microscopic droplets of one liquid suspended inside another liquid (the dispersed phase). Milk (in which fat droplets are dispersed in water)
Question : Directions: If PONDERS is coded as ONMCDQR, how will MAT be coded?
Option 1: LZS
Option 2: OLJ
Option 3: AEG
Option 4: LDZ
Correct Answer: LZS
Solution : Given: PONDERS is written as ONMCDQR.
Subtract 1 from the place values of each letter of PONDERS to get the required code – P – 1 = O; O – 1 = N; N – 1 = M; D – 1 = C; E –
Question : Directions: In the following question, select the missing number from the given series. 15, 4, –8, –21, –35, ?
Option 1: –48
Option 2: –50
Option 3: –49
Option 4: –30
Correct Answer: –50
Solution : Given: 15, 4, –8, –21, –35, ?
Subtract natural numbers starting from 11 to 15 successively from each term to obtain the next term. (15 – 11) = 4; (4 – 12) = – 8; (– 8 – 13) = – 21; (– 21 –
Question : If $(x-\frac{1}{3x})=\frac{1}{3}$, then the value of $3(x-\frac{1}{3x})$ is:
Option 1: –1
Option 2: –2
Option 3: 1
Option 4: 2
Correct Answer: 1
Solution : Given: $(x-\frac{1}{3x})=\frac{1}{3}$ Multiplying both sides by 3, we get, $⇒3(x-\frac{1}{3x})=\frac{1}{3}×3$ $\therefore 3(x-\frac{1}{3x})=1$ Hence, the correct answer is 1.
Question : 'Raslila' recognized as one of the classical dance forms of India, belongs to which of the following states?
Option 1: Assam
Option 2: Meghalaya
Option 3: Tripura
Option 4: Manipur
Correct Answer: Manipur
Solution : The correct answer is Manipur.
Manipuri dance has its roots in prehistoric eras that predate recorded history. Raslila is one of the most well-known dances in Manipur. It is mainly known for its Hindu Vaishnavism themes and performances of the Radha-Krishna dance drama Raslila. The
Question : ABC is an isosceles triangle inscribed in a circle. If AB = AC = $12\sqrt{5}$ cm and BC = 24 cm, then the radius of circle is:
Option 1: 10 cm
Option 2: 15 cm
Option 3: 12 cm
Option 4: 14 cm
Correct Answer: 15 cm
Solution : Given, AB = AC = 1$2\sqrt{5}$cm and BC = 24 cm Join OB, OC, and OA. Draw AD$\perp$ BC which will pass through centre O OD bisects BC in D as perpendicular from the centre to a chord bisects the chord. So, BD =
Question : Directions: A + B means A is the brother of B. A – B means A is the mother of B. A × B means A is the husband of B. A ÷ B means A is the sister of B. If P ÷ Q – R + S – K × L, then which of the following statements is correct?
Option 1: Q is L’s mother
Option 2: R is K’s mother’s brother
Option 3: Q is S’s sister
Option 4: R is L’s husband’s brother
Correct Answer: R is K’s mother’s brother
Solution : According to the given information, the family tree is as follows –
Here, the quadrilateral represents the male and the circular figure represents the female in the figure.
So, from the above, R is K’s mother’s brother. Hence, the second option
Question : Directions: Select the option that represents the letters that when placed from left to right in the blanks below will complete the letter series. D_BA_CB_DCB_D_BA
Option 1: CDAAC
Option 2: DBCAC
Option 3: DCBCA
Option 4: CBDCA
Correct Answer: CDAAC
Solution : Given: D_BA_CB_DCB_D_BA
To fill the series we have to divide the series – D_BA / _CB_ / DCB_ / D_BA
Let's check each option – First option: CDAAC; DCBA / DCBA / DCBA / DCBA (DCBA is repeated)
Question : Directions: 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 follow from the statements. Statements: I. All blocks are toys. II. All toys are books. III. All books are stories. Conclusions: I. Some toys are blocks. II. Some blocks are books. III. Some stories are toys.
Option 1: Only conclusions I and III follow
Option 2: Only conclusions II and III follow
Option 3: Only conclusions I and II follow
Option 4: All the conclusions follow
Correct Answer: All the conclusions follow
Solution : The possible Venn diagram according to the statements will be –
Let's analyse the conclusions – Conclusion (I): Some toys are blocks – From the Venn diagram, it is clear that the circle that represents toys is overlapped by the circle that
Question : The length of the side of a cube is 4.2 cm. What is the volume of the largest sphere that can be taken out of the cube?
Option 1: 26.40 cm3
Option 2: 20.50 cm3
Option 3: 38.80 cm3
Option 4: 48.60 cm3
Correct Answer: 38.80 cm3
Solution : Given, the length of the side of a cube is 4.2 cm So, the Diameter of the largest sphere that can be taken out of the cube = 4.2 cm Then, the required radius, $r$ = 2.1 cm We know, volume of sphere
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