Staff Selection Commission Combined Higher Secondary Level Exam
Question : The number of patients in four different categories in three hospitals A, B, and C is given below. The total number of patients in three hospitals A, B, and C respectively, are:
Option 1: 12, 14, and 12
Option 2: 12, 12, and 14
Option 3: 14, 12, and 12
Option 4: 14, 13, and 12
Correct Answer: 14, 12, and 12
Solution : Patients in hospital A in all categories = 5 + 3 + 2 + 4 = 14 Patients in hospital B in all categories = 3 + 2 + 5 + 2 = 12 Patients in hospital C in all categories = 5 + 3 + 2 + 2 = 12 Hence, the correct answer is 14, 12, and 12.
Question : Directions: Select the option in which the numbers share the same relationship in the set as that shared by the numbers in the given set. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g.13 – operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (12, 144, 1728) (6, 36, 216)
Option 1: (11, 121, 1000)
Option 2: (14, 196, 2197)
Option 3: (10, 100, 1000)
Option 4: (8, 64, 729)
Correct Answer: (10, 100, 1000)
Solution : Given: (12, 144, 1728); (6, 36, 216)
Here, (12, 144, 1728)→(12)2 = 144; (12)3 = 1728 (6, 36, 216)→(6)2 = 36; (6)3 = 216
Let's check each option – First option: (11, 121, 1000)→(11)2 = 121; (11)3 = 1331 ≠ 1000 Second option: (14, 196, 2197)→(14)2 = 196; (14)3 = 2744 ≠ 2197 Third option: (10, 100, 1000)→(10)2 = 100; (10)3 = 1000 Fourth option: (8, 64, 729)→(8)2 = 64; (8)3 = 512 ≠ 729
So, only the third option follows the same pattern as followed by the given set of numbers. Hence, the third option is correct.
Question : What is the name of the indigenously developed special aviation fuel by the Indian Oil Corporation in September 2022?
Option 1: LNG 30
Option 2: CNG 101
Option 3: AVGAS 100 LL
Option 4: ATF NEW 50
Correct Answer: AVGAS 100 LL
Solution : The correct option is AVGAS 100 LL.
The Indian Oil Corporation has domestically engineered AVGAS 100 LL for application in piston engine aircraft and unmanned aerial vehicles. Specifically designed to fuel aircraft equipped with spark-ignition piston engines, where combustion is initiated by a spark plug, this locally developed aviation gasoline is tinted blue and boasts a high octane number.
Question : The point $R(a,b)$ is first reflected over the origin to $R_1$ and $R_1$ is reflected over the X-axis to (–4, 2). The coordinates of point $R$ are:
Option 1: (–4, –2)
Option 2: (–4, 2)
Option 3: (4, 2)
Option 4: (4, –2)
Correct Answer: (4, 2)
Solution : Given: The coordinates of the point $R(a,b)$ reflected over the origin are $R(–a,–b)$. The coordinates of $R(–a,–b)$ are reflected over the X-axis to $(–a, b)$. But $(–a, b)$ $=(–4, 2)$ So, $a=4,b=2$ Thus point R (4, 2) Hence, the correct answer is (4, 2).
Question : Directions: JPVZ is related to PVBF in a certain way based on a certain relationship between the given letters in the English alphabetical order. In the same way, HQRS is related to NWXY. To which of the following is EJUO related to following the same logic?
Option 1: ZSFO
Option 2: JPHN
Option 3: NWJF
Option 4: KPAU
Correct Answer: KPAU
Solution : Given: JPVZ is related to PVBF and HQRS is related to NWXY.
Add 6 to the place value of each letter of JPVZ and HQRS to obtain the required codes – JPVZ→J + 6 = P; P + 6 = V; V + 6 = B; Z + 6 = F Thus, JPVZ is related to PVBF. HQRS→H + 6 = N; Q + 6 = W; R + 6 = X; S + 6 = Y Thus, HQRS is related to NWXY. Similarly, follow the same pattern for EJUO – E + 6 = K; J + 6 = P; U + 6 = A; O + 6 = U
Thus, EJUO is related to KPAU. Hence, the fourth option is correct.
Question : Comprehension:
In the following passage, some of the words have been deleted. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
According to the Integrated Taxonomic Information System (ITIS), there are more than 60 (1)______ of rat, which means they come in all sizes. They are (2)_____ 5 inches (12 centimeters), or longer, according to Encyclopedia Britannica. The largest species is the Bosavi woolly rat, which was (3)_____ in 2009 in the rainforest of Papua New Guinea (and doesn't have a scientific name yet). It is (4)______ the size of a cat — 32.2 inches (82 cm) from nose to tail and (5)______ around 3.3 lbs. (1.5 kilograms), according to CNN.
Question:
Select the most appropriate option to fill in the blank number 2.
Option 1: modestly
Option 2: manually
Option 3: typically
Option 4: surgically
Correct Answer: typically
Solution : The third option is the correct answer.
The sentence provides information about the dimensions of rats, stating that they are generally 5 inches (12 centimetres) or longer. Typically accurately conveys the expected or common size without any extreme variations.
The meanings of the other options are as follows:
Question : Which of these is not among the reforms related to agriculture undertaken under the five-year plans?
Option 1: Introduction of the policy of "land to the tiller"
Option 2: Introduction of the Land Ceiling Act
Option 3: Launch of the high yielding variety seed technology
Option 4: Formation of Rent Authority Department
Correct Answer: Formation of Rent Authority Department
Solution : The correct option is the Formation of Rent Authority Department.
The formation of a Rent Authority Department is not considered among the reforms related to agriculture undertaken under the five-year plans. Reforms related to agriculture in the context of five-year plans often include measures to enhance agricultural productivity, improve rural infrastructure, promote irrigation, provide credit facilities to farmers, introduce new technologies, and address issues related to land reforms.
Question : Which of the following is a biodegradable waste?
Option 1: Wool
Option 2: Polythene bags
Option 3: Plastics
Option 4: Nylon
Correct Answer: Wool
Solution : The correct option is - Wool.
Wool is a naturally occurring, renewable resource and a biodegradable material. Any organic material in garbage that can be broken down into carbon dioxide, water, methane, or simple organic molecules by microbes and other living creatures working in composting, aerobic digestion, anaerobic digestion, or similar processes is considered biodegradable waste.
Question : Jason can do a piece of work alone in 23.4 days, while Rafique can do the same piece of work alone in 39 days. In how many days can the duo, complete the same work if they work together?
Option 1: 14.750
Option 2: 14.625
Option 3: 14.875
Option 4: 14.375
Correct Answer: 14.625
Solution : Time taken by Jason alone to complete the work = 23.4 days ⇒ Part of work done by Jason alone in a day = $\frac{1}{23.4}$ = $\frac{10}{234}$ Time taken by Rafique alone to complete the work = 39 days ⇒ Part of work done by Rafique alone in a day = $\frac{1}{39}$ Let the time taken by Jason and Rafique together to complete the work = $x$ days ⇒ Part of work done by Jason and Rafique in a day = $\frac{1}{x}$ According to the question, $\frac{10}{234}$ + $\frac{1}{39}$ = $\frac{1}{x}$ $⇒\frac{1}{x}$ = $\frac{10+6}{234}$= $\frac{8}{117}$ $⇒x$ = $\frac{117}{8}$ = 14.625 Hence, the correct answer is 14.625.
Question : Which of the following metals contribute to biomagnification problem in the ecosystem?
Option 1: Mercury
Option 2: Chromium
Option 3: Copper
Option 4: Lead
Correct Answer: Mercury
Solution : The correct answer is Mercury.
Biomagnification is the process of accumulation of toxic substances in the body of an organism and it passes and amplifies in the subsequent trophic levels or in a food chain. For an element to biomagnify it has to be fat soluble and it should be long lived. Biomagnification is usually seen in DDT and in metals like Mercury. Mercury pollution causes Minamata disease.
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