The Odisha Subordinate Staff Selection Commission (OSSSC) plays a crucial role in selecting competent candidates for various government positions in Odisha, India. Among its recent offerings are the recruitment tests for the posts of Livestock Inspector (LSI), Forester, and Forest Guard (FG) in 2024. Aspirants eyeing these coveted positions need to equip themselves with comprehensive knowledge and rigorous practice. To aid in this endeavor, OSSSC has released Practice Test-I, serving as a litmus test for candidates’ preparedness.
OSSSC LSI, Forester, FG 2024: Practice Test-I
- What is the place value of 4 in the number 3472?
A) 4
B) 40
C) 400
D) 4000
ANS:- C) 400
Sol:- To find the place value of the digit 4 in the number 3472, we look at its position within the number.
The number 3472 can be broken down as follows:
3 x 1000 (3 thousands)
4 x 100 (4 hundreds)
7 x 10 (7 tens)
2 x 1 (2 ones)
So, the digit 4 is in the hundreds place. Therefore, its place value is 400.
The correct answer is C) 400 - Calculate the inverse of the function f(x) = 3x – 1.
A) f(-1)(x) = (x+1) / 3
B) f(-1)(x) = (x-1) / 3
C) f(-1)(x) = (x-1) / 3
D) f(-1)(x) = (x+1) / 3
S5. ANS:- A) f(-1)(x) = (x+1) / 3
Sol:- To find the inverse of a function, we need to swap the roles of x and y and solve for y.
Given the function
f(x) = 3x − 1, let’s denote the inverse as f(-1)(x)
So, we have:
y = 3x − 1
Swap x and y:
x = 3y − 1
Now, solve for y:
x +1 = 3y
y = (x+1) / 3
So, the inverse function is f(-1)(x) = (x+1) / 3
The correct answer is A) f(-1)(x) = (x+1) / - Which of the following equations is a linear equation in one variable?
A) 2×2+ 3 = 0
B) 3y + 2 = 0
C) x3− 2x + 5 = 0
D) 4y2− 9 = 0
ANS:- B) 3y+2=0
Sol:- A linear equation in one variable involves only one variable raised to the power of 1. Let’s examine each option:
option A) 2×2+ 3 = 0 – This equation involves x raised to the power of 2, so it is not linear in one variable.
Option B) 3y + 2 = 0 – This equation involves only y raised to the power of 1, making it a linear equation in one variable.
Option C) x3− 2x + 5 = 0 – This equation involves x raised to the power of 3, so it is not linear in one variable.
Option D) 4y2−9=0 – This equation involves y raised to the power of 2, so it is not linear in one variable.
Therefore, the correct answer is B) 3y+2=0 - What is the logarithm (base 10) of 1000?
A) 1
B) 2
C) 3
D) 4
ANS:- C) 3.
Sol:- The logarithm (base 10) of 1000 is the power to which 10 must be raised to equal 1000.
So, log10 (1000) = x
10^x = 1000
By observing, 10^3 = 1000.
So, x = 3.
Therefore, the correct answer is C) 3. - What is the value of sin 60°?
A) 0.5
B) √3 / 2
C) 1
D) √2 / 2
ANS:- B) √3 / 2
Sol:- In a 30-60-90 triangle, the sine of 60 degrees is equal to the length of the opposite side (which is √3) divided by the length of the hypotenuse (which is 2). So the answer is B) √3 / 2 - କଞ୍ଚାର ବିପରୀତ ଶବ୍ଦ କଣ ହେବ?
(a) ନିରମ୍ମଳ
(b) ପାଚିଲା
(c) ଉତ୍ସାହ
(d) ପ୍ରଶାନ୍ତ
Ans. (b) ପାଚିଲା - କାରଣର ବିପରୀତ ଶବ୍ଦ କଣ ହେବ?
(a) ଦୁର୍ଦ୍ଧର୍ଷ
(b) ଲୁଭାବାନ୍ତ
(c) ସମୟ
(d) ଅକାରଣ
Ans. (d) ଅକାରଣ - ‘ଗୋଧୂମ’ ଶବ୍ଦର ଅର୍ଥ କଣ
(a) ଗୋବର ଧୂଆଁ
(b) ଧାନ
(c) ଗହମ
(d) ଅନାଦର୍ଶ
Ans. (c) ଗହମ - ‘ଆଦର୍ଶ’ ର ବିପରୀତ ବୋଧକ ଶବ୍ଦ କଣ ?
(a) ଅନାଦ୍ରଶ
(b) ଅଣାଦ୍ରଶ
(c) ଅନାଦର୍ଶ
(d) ଆଦର୍ଶହୀନ
Ans. (c) ଅନାଦର୍ଶ - ‘ଅଦା ବେପାରୀ ର ଜାହାଜ ମୂଲ’ – ଉକ୍ତ ରୂଢିଟି କେଉଁ ଅର୍ଥର ବ୍ୟବହୃତ ହୁଏ ।
(a) ଅତିଶୟ ନିଷ୍କା
(b) ଅତି ବୁଦ୍ଧିଆ
(c) ଅନଧିକାର ଚର୍ଚ୍ଚା
(d) ବୃଥା ଚେଷ୍ଟା
Ans. (c) ଅନଧିକାର ଚର୍ଚ୍ଚା - Identify the tense used in the given sentence.
“Alice was reading a book when I entered the room”.
(a) Past perfect tense.
(b) present perfect tense
(c) past indefinite tense.
(d) present indefinite tense
Ans:- past indefinite tense - Smriti is a the ——- in her family.
(a) brave
(b) braver
(c) bravest
(d) more than one of the above.
Ans:-[ Option C ] Bravest.
Explanation: In the given sentence Smriti is compared with the rest of her family members. The superlative degree of the adjective ‘Brave’ is ‘Bravest’. - My mother makes ——- patties than this one
(a) crispiest
(b) crispier
(c) most crispy
(d) none of the above
Ans:-[Option B ] crispier.
Explanation: Here we are comparing the crispiness of patties. The presence of the word ‘than’ after the blank shows that there must be a comparative degree of the word ‘crispy’ - Leela worked hard—————- she passed her exam.
(a) so
(b) although
(c) because
(d) through
Ans:- So - ————–he was very tired, and he helped his sister with her homework.
(a) Because
(b) whether
(c)Although
(d) so
Ans:- Although - On the Fahrenheit scale, at what temperature does water freeze?
(A) 0°F
(B) 100°F
(C) 32°F
(D) 212°F
Answer: (C) 32°F
Explanation: Water freezes at 32°F on the Fahrenheit scale. - What principle relates the voltage, current, and resistance in an electric circuit?
(a) Faraday’s Law
(b) Ohm’s Law
(c) Ampère’s Law
(d) Lenz’s Law
Answer: (b) Ohm’s Law
Explanation: Ohm’s Law relates voltage, current, and resistance. - What causes the rusting of iron?
(a) Exposure to air and water
(b) Exposure to heat and light
(c) Exposure to acids
(d) Exposure to salts
Answer: (a) Exposure to air and water
Explanation: Rusting of iron occurs when iron is exposed to oxygen and moisture in the air. - What is the process of preventing corrosion by applying a protective layer called?
(a) Cathodic protection
(b) Passivation
(c) Anodizing
(d) Galvanization
Answer: (b) Passivation
Explanation: Passivation involves applying a protective layer to prevent corrosion. - What is the term for the total biomass production by producers in an ecosystem?
a) Gross primary productivity (GPP)
b) Net primary productivity (NPP)
c) Secondary productivity
d) Tertiary productivity
Answer: a) Gross primary productivity (GPP) - In which state is the Bhakra Nangal Dam located?
(a) Himachal Pradesh
(b) Punjab
(c) Haryana
(d) Uttar Pradesh
Answer: a) Himachal Pradesh - Where is the headquarters of the World Food Programme (WFP)?
(a) New York, USA
(b) Rome, Italy
(c) Geneva, Switzerland
(d) Nairobi
Answer: A) Rome, Italy - Where is the headquarters of the International Olympic Committee?
(a) Lausanne, Switzerland
(b) Geneva, Switzerland
(c) Brussels, Belgium
(d) London, United Kingdom
Answer: A) Lausanne, Switzerland - Which international organization is based in Abu Dhabi (UAE)?
(a) International Monetary Fund (IMF)
(b) International Renewable Energy Agency
(c) World Health Organisation (WHO)
(d) United Nations Educational Scientific and Cultural Organisation (UNESCO)
Answer: B) International Renewable Energy Agency - What river is associated with the Dhauli Ganga Dam?
(a) Ganga River
(b) Yamuna River
(c) Alaknanda River
(d) Dhauli Ganga River
Answer: c) Alaknanda River - A field of technology that deals with a combination of real world and the data generated from computer.
a) ML
b) AI
c) AR
d) IoT
Answer: c - Which of the following is not a type of computer on the basis of operation?
a) Remote
b) Hybrid
c) Analog
d) Digital
Answer: a - MFD stands for?
a) Main File Directory
b) Memory File Directory
c) Master File Directory
d) Master Format Directory
Answer: c - _____ LAN topology describes the possible connections between pairs of networked end-points that can communicate.
a) Complex
b) Physical
c) Logical
d) Incremental
Answer: c - Both client and server release _________ connection after a page has been transferred.
a) IP
b) TCP
c) Hyperlink
d) Network
Answer: b
