The OSSSC RI, ARI, AMIN, SFS, ICDS Supervisor 2024 Practice Test is designed to help candidates prepare for the upcoming competitive exams conducted by the Odisha Subordinate Staff Selection Commission (OSSSC) . This test covers key topics such as reasoning, general knowledge, mathematics, and subject-specific questions relevant to each post. It provides candidates with a comprehensive understanding of the exam pattern, time management, and difficulty level. By practicing regularly, candidates can enhance their problem-solving skills and boost confidence, improving their chances of success in the OSSSC 2024 exams.
Last Minute Revision Quiz for OSSSC RI, ARI, AMIN
- Question: What is the volume of a cylinder with a radius of 3 cm and height of 10 cm?
Options:
A) 282.74 cm³
B) 282.45 cm³
C) 282.50 cm³
D) 283.33 cm³
Solution:
Volume of a cylinder = πr²h
= π * 3² * 10
= π * 9 * 10
= 282.74 cm³ (approx)
Answer: A) 282.74 cm³ - Question: What is the probability of rolling a sum of 7 with two six-sided dice?
Options:
A) 1/6
B) 1/9
C) 1/12
D) 1/36
Solution:
Possible ways to roll a 7: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1).
There are 6 outcomes out of 36 total outcomes.
Probability = 6 / 36 = 1 / 6
Answer: A) 1/6 - Question: A can complete a work in 10 days, and B can complete the same work in 15 days. How many days will it take if they work together?
Options:
A) 6 days
B) 5 days
C) 7 days
D) 8 days
Solution:
Work done by A in one day = 1/10
Work done by B in one day = 1/15
Together, their work per day = 1/10 + 1/15
= 3/30 + 2/30 = 5/30 = 1/6
So, together they will take 6 days to complete the work.
Answer: A) 6 days - Question: If 3 parts of a mixture contains 2 parts of salt, how much salt would be there in a mixture of 15 parts?
Options:
A) 5 parts
B) 6 parts
C) 7 parts
D) 10 parts
Solution:
Ratio of salt to mixture = 2/3
Therefore, salt in 15 parts = (2/3) * 15 = 10 parts
Answer: D) 10 parts - Question: A boat can travel at 12 km/h in still water. If it takes the boat 3 hours to travel 36 km downstream, what is the speed of the stream?
Options:
A) 3 km/h
B) 4 km/h
C) 5 km/h
D) 6 km/h
Solution:
Speed downstream = Distance / Time
= 36 km / 3 hours = 12 km/h
Boat speed in still water = 12 km/h
Therefore, stream speed = (downstream speed) – (still water speed)
= 12 km/h – 12 km/h
= 0 km/h
Answer: A) 3 km/h - Question: What is the simple interest on a principal amount of $800 at an interest rate of 4% per year for 3 years?
Options:
A) $90
B) $96
C) $97
D) $98
Solution:
Simple interest = Principal * Rate * Time
= $800 * 0.04 * 3
= $96
Answer: B) $96 - Question: A car travels a distance of 120 km in 2 hours. What is the speed of the car in km/h?
Options:
A) 50 km/h
B) 60 km/h
C) 70 km/h
D) 80 km/h
Solution:
Speed = Distance / Time
= 120 km / 2 hours
= 60 km/h
Answer: B) 60 km/h - Question: A train 150 meters long is running at a speed of 60 km/h. How long will it take to pass a 180-meter-long platform?
Options:
A) 12 seconds
B) 15 seconds
C) 18 seconds
D) 20 seconds
Solution:
Total distance = Length of train + Length of platform
= 150 m + 180 m = 330 m
Speed of the train in m/s = (60 * 1000) / 3600 = 16.67 m/s
Time = Distance / Speed
= 330 m / 16.67 m/s
= 19.8 seconds
Answer: C) 18 seconds - Question: In 5 years, John’s age will be twice his age 3 years ago. How old is he now?
Options:
A) 8 years
B) 10 years
C) 12 years
D) 15 years
Answer: B) 11 years
Solution:
- Question: A 20-liter mixture contains milk and water in the ratio of 3:2. How much water must be added to the mixture to make the ratio 1:1?
Options:
A) 5 liters
B) 8 liters
C) 4 liters
D) 6 liters
Answer: C) 4 liters - Which of the following is a homonym of “Illuminate”?
(a) Enlighten
(b) Eliminate
(c) Brighten
(d) Clarify
Ans: (b) Eliminate - What part of speech is “Incessant”?
(a) Noun
(b) Verb
(c) Adjective
(d) Adverb
Ans: (c) Adjective - Which word is a synonym of “Incessant”?
(a) Intermittent
(b) Persistent
(c) Sporadic
(d) Occasional
Ans: (b) Persistent - Directions(4-5) In each of the questions, These parts are not given in proper order. Make these combinations is correct form.
4. I came to know that
P: to the point of boring his friends
Q: he was extremely talkative
R: who were all very reserved
S: compared to his brothers
(a) QPRS
(b) QPSR
(c) SPRQ
(d) SRQP
Ans: (b) QPSR - The fact is that
P: the hunters
Q: the lion
R: hesitated to go out again for shooting
S: having been wounded once
(a) SQRP
(b) QSRP
(c) SPRQ
(d) PRSQ
Ans: (c) SPRQ - Choose the correct meaning of the word “incorrigible”:
(a) Sympathetic
(b) Trustworthy
(c) Unalterable
(d) Dangerous
Ans: (c) Unalterable - Choose the correct synonym for the word “verbose”:
(a) Quiet
(b) Talkative
(c) Brief
(d) Reserved
Ans: (b) Talkative - Choose the correct meaning of the word “precocious”:
(a) Immature
(b) Slow to develop
(c) Forward for one’s age
(d) Uninterested
Ans: (c) Forward for one’s age - Read the Passage and answer the following questions.
The dense Amazon rainforest, often referred to as the “lungs of the Earth,” is a vital component of our planet’s ecosystem. Covering over 5.5 million square kilometers, it produces about 20% of the world’s oxygen. The Amazon is not only home to an incredible diversity of wildlife but also serves as a crucial carbon sink, absorbing vast amounts of CO2 from the atmosphere. However, deforestation poses a significant threat to this unique environment. Human activities, such as logging, agriculture, and mining, have led to the loss of millions of hectares of forest. Protecting the Amazon is not just about preserving nature; it’s essential for combating climate change and ensuring the survival of countless species.
MCQs:
What percentage of the world’s oxygen is produced by the Amazon rainforest?
(a) 10%
(b) 15%
(c) 20%
(d) 25%
Ans: (c) 20% - The Amazon rainforest is often referred to as the “lungs of the Earth” because it:
(a) Absorbs CO2
(b) Produces oxygen
(c) Houses diverse wildlife
(d) All of the above
Ans: (d) All of the above - The ratio of the volumes of two cubes is 729 : 1331. What is the ratio of their total surface areas?
A. 81 : 121
B. 9 : 11
C. 729 : 1331
D. 27 : 12
Ans: A. 81 : 121
Ratio of the sides = ³√729 : ³√1331 = 9 : 11
Ratio of surface areas = 92 : 112 = 81 : 121 - 6 of 5/8 / 5/8 – 1/8 = ______?
A. 6 1/8
B. 5 3/4
C. 6 3/4
D. 5 7/8
Ans: D. 5 7/8
Explanation:
6 of 5/8 / 5/8 – 1/8
30/8 * 8/5 – 1/8 = 6 – 1/8 = 5 7/8 - (22 * 495 + 891 * 44) / (33 * 176 + 55 * 264) = _________?
A. 1
B. 2
C. 69/28
D. 66/17
Ans: C. 69/28
Explanation:
(22 * 495 + 891 * 44) / (33 * 176 + 55 * 264) = (22 * 33 * 15 + 9 * 99 * 2 * 22) / (33 * 22 * 8 + 5 * 11 * 22 * 12)
= (22 * 33 * 15 + 22 * 33 * 54) / (33 * 22 * 8 + 33 * 22 * 20) = [22 * 33(15 + 54)] / [33 * 22(8 + 20)] = 69/28 - 7 + 5 – (3/2 * 1/4) of 2/7 + 7/2 * 1/6 equals ________.
A. 12 3/88
B. 24 21/24
C. 12 25/224
D. 12 1/224
Ans: C. 12 25/224
Explanation:
7 + 5 – (3/2 * 1/4) of 2/7 + 7/2 * 1/16
= 7 + 5 – (3/2 * 1/4) * 2/7 + 7/2 * 1/16 = 7 + 5 – 3/28 + 7/32
= 12 + 3/28 + 7/32 = 12 + (7 * 7 – 3 * 8)/224
= 12 + 25/224 = 12 25/224 - A boat having a length 3 m and breadth 2 m is floating on a lake The boat sinks by 1 cm when a man gets on it. The mass of man is :__________?
A. 12 kg
B. 60 kg
C. 72 kg
D. 96 kg
Ans: B. 60 kg
Volume of water displaced = (3 X 2 X 0.01) m3 = 0.06 m3.
Mass of man = Volume of water displaced X Density of water
= (0.06 X 1000) kg = 60 kg. - The areas of the three adjacent faces of a rectangular box which meet in a point are known. The product of these areas is equal to :___________?
A. the volume of the box
B. twice the volume of the box
C. the square of the volume of the box
D. the cube root of the volume of the box
Ans: C. the square of the volume of the box
Let length = 1, breadth = b and height = h. Then,
Product of areas of 3 adjacent faces = (lb x bh x 1h) = (lbh)2 = (Volume)2. - A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45 kmph in the same direction. In how much time will the train pass the joɡɡer?
A. 3.6 sec
B. 18 sec
C. 36 sec
D. 72 sec
Ans: C. 36 sec
Explanation
With 5 best steps
1.Data:
Speed 1=V₁= 9km/h
Distance 1=S₁= 240 m
Distance 2 =S₁= 120 m
Speed 2=V₂= 45km/h
Relative speed(V) = V₂_V₁
Relative speed (V)= 45km/h_9 km/h
Relative speed (V)=36km/h
Relative speed(V)= 36×1000m/3600Sec
Relative speed (V)= 36000m/3600Sec
Relative speed(V)= 10 m/sec
Covered distance(S)= 240m+120m
Covered distance (S)= 360m.
2. Required:
Time taken= T=??
3. Formula:
S= V×T
For T
T = S/V
4. Solution:
Putting values in formula.
T= 360 m/10 m/Sec
T= 36Sec
5. Result:
Time taken= T= 36 Sec - Two trains are moving in opposite directions 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is_________?
A. 36
B. 45
C. 48
D. 49
Ans: C. 48
Explained with 5 Steps.
1.Data:
Speed 1 = 60 km/hr
Speed 2= 90 km/hr
Relative speed= (60+90)km/hr
Relative speed= 150 km/hr
Relative speed= 150×1000m/3600 Sec
Relative speed= 150,000m/3600 Sec
Relative speed= 1500m/36Sec
Relative speed= 42m/Sec
Distance 1= 1.10km
Distance 2= 0.9km
Total distance= (1.10+0.9) km
D(t)= 2 km => 2×1000m
D(t) = 2000m
2 Required:
Time=T=???
3. Formula:
S = V×T
For T
T= S/V
4. Solution:
Putting value in formulas.
T= 2000m/ 42 m/sec
T= 48Sec
5. Result:
Time =T= 48 Sec - In what ratio should the profit be divided if M, N, O invests capital in ratio 2:3:5 and their timing of their investments are in the ratio 4:5:6.
A. 8:15:30
B. 5:18:28
C. 4:5:6
D. 2:3:5
Ans: A. 8:15:30
P1:P2:P3 = (2*4):(3*5):(5*6)
= 8 : 15 : 30 - If Ahmed purchases a Watch for Rs 600 and pays 15% sales tax, the total amount spent on purchase is?
A. 660
B. 670
C. 680
D. 690
E. 700
Ans; D. 690
If Ahmed purchases a Watch for and pays sales tax, the total amount spent on purchase is 690.
EXPLANATION
= 600x(1+15%)
= 600×1.15
= 690 - Adya Dhara niradhara, niralamba Saraswati, thus lamented a poet at the demise of which among the following Kings?
[A] Chahmana Visaladeva
[B] Chandela Kirtivarma
[C] Mihira Bhoja
[D] Bhoja Paramara
Correct Answer: [D] Bhoja Paramara - Which among the following temples of India is known as Black Pagoda?
[A] Sun Temple, Konark
[B] Brihadeeswara Temple, Tanjore
[C] Lord Jagannath Temple, Puri
[D] Meenakshi Temple, Madurai
Correct Answer: [A] Sun Temple, Konark - Mattur Village, whose inhabitants are known to speak Sanskrit Language is located in which among the following states of India?
[A] Andhra Pradesh
[B] Karnataka
[C] Kerala
[D] Tamil Nadu
Correct Answer: [B] Karnataka - Shintoism is a religion or belief expanded greatly in which country?
[A] China
[B] Thailand
[C] Burma
[D] Japan
Correct Answer: [D] Japan - Singhey Khababs Festival is celebrated in which among the following states of India?
[A] Himachal Pradesh
[B] Jammu & Kashmir
[C] Uttarakhand
[D] Punjab
Correct Answer: [B] Jammu & Kashmir - The Victoria Falls are located on which river?
[A] Amazon
[B] Zambezi
[C] Nile
[D] Congo
Correct Answer: [B] Zambezi - Which is the largest freshwater lake by volume in the world?
[A] Lake Superior
[B] Lake Baikal
[C] Caspian Sea
[D] Lake Victoria
Correct Answer: [B] Lake Baikal - Which is the only floating National Park in the world?
[A] Sundarbans National Park
[B] Keibul Lamjao National Park
[C] Kaziranga National Park
[D] Manas National Park
Correct Answer: [B] Keibul Lamjao National Park - Which continent has the highest number of countries?
[A] Africa
[B] Asia
[C] Europe
[D] North America
Correct Answer: [A] Africa - The Tropic of Cancer does not pass through which of these countries?
[A] India
[B] Mexico
[C] Egypt
[D] Australia
Correct Answer: [D] Australia - କେଉଁଟି ଚଢେଇ ର ପ୍ରତିଶବ୍ଦ?
(a) ଜୀବନ
(b) ବିହଗ
(c) ଧୂଳିଜଂଘ
(d) ଆଳୟ
Ans: (b) ବିହଗ - କେଉଁଟି ଜଳ ର ପ୍ରତିଶବ୍ଦ?
(a) ଜାମଘୋଷ
(b) ଦୁହିତା
(c) ଅମୃତ
(d) ବାୟସ
Ans: (c) ଅମୃତ - କେଉଁଟି ଗାଈ ର ପ୍ରତିଶବ୍ଦ ନୁହେଁ?
(a) ଗୋ
(b) ଧେନୁ
(c) ରାତ୍ରିବେଦ
(d) ଗାଭୀ
Ans: (c) ରାତ୍ରିବେଦ - କେଉଁଟି କୁଆ ର ପ୍ରତିଶବ୍ଦ?
(a) କାକ
(b) ଅମ୍ଵୁ
(c) ବିହଙ୍ଗମ
(d) ଯାମନାନ୍ଦୀ
Ans: (a) କାକ - କେଉଁଟି ଚନ୍ଦ୍ର ର ପ୍ରତିଶବ୍ଦ?
(a) ହିମାଂଶୁ
(b) ଧୂଳିଜଂଘ
(c) ଗୃହ
(d) ଅମୃତ
Ans: (a) ହିମାଂଶୁ - କେଉଁଟି କୁକୁଡ଼ା ର ପ୍ରତିଶବ୍ଦ ନୁହେଁ?
(a) ଚରଣାୟୁଧ
(b) ଧୂଳିଜଂଘ
(c) ଯାମଘୋଷ
(d) କାଳଜ୍ଞ
Ans: (b) ଧୂଳିଜଂଘ - କେଉଁଟି ଘର ର ପ୍ରତିଶବ୍ଦ?
(a) ନିବାସ
(b) ବାୟସ
(c) ବିହଗ
(d) କୁକୁଡ଼ା
Ans: (a) ନିବାସ - କେଉଁଟି ଚନ୍ଦ୍ର ର ପ୍ରତିଶବ୍ଦ ନୁହେଁ?
(a) ଶଶୀ
(b) ବିଧୁ
(c) ଜଳ
(d) ଚନ୍ଦ୍ରମା
Ans: (c) ଜଳ - କେଉଁଟି ଜଳ ର ପ୍ରତିଶବ୍ଦ?
(a) ଆୟୁ
(b) ଗୃହ
(c) କାଉ
(d) ବିହଗ
Ans: (a) ଆୟୁ - ପଦ ଦୃଷ୍ଟିରୁ କେଉଁ ଗୋଟିକ ଭିନ୍ନ ଜାତୀୟ ?
(a) ତୁମେ
(b) ଏବଂ
(c) ସେମାନେ
(d) ମୁଁ
Ans: (b) ଏବଂ
