Statewise Prepration
Govt. Examwise MCQ
766 MCQ Questions in english हिन्दी
17. In Python, what will print(0.1 + 0.2 == 0.3) output?
Due to floating-point precision errors, 0.1 + 0.2 results in a value slightly more than 0.3. Thus, the equality test returns False. This is a classic floating-point arithmetic caveat in computing.
Which scheduling algorithm is used in real-time operating systems?
Rate Monotonic Scheduling is a priority-based real-time algorithm where shorter cycles get higher priority. It ensures predictable task execution. It's commonly used in embedded and control systems.
In Big Data, what does the “4 Vs” stand for?
Big Data is defined by its high Volume (data size), Velocity (speed), Variety (types), and Veracity (uncertainty). These characteristics pose challenges for traditional data processing. The 4 Vs guide the design of scalable data systems.
What does the acronym “DNS” stand for in networking?
DNS translates human-readable domain names like example.com into IP addresses. It acts like a phonebook of the internet. Without DNS, users would need to remember complex IP numbers.
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Which network topology uses a central controller to manage communication?
In a star topology, each device connects to a central hub or switch, which controls data transmission. This makes troubleshooting easier but increases dependence on the hub. Failure of the hub can disrupt the entire network.
In C++, what is the default access specifier for class members?
In C++, class members are private by default unless explicitly specified. This promotes data encapsulation and hides implementation details. Structs, in contrast, have public members by default.
Which microorganism causes AIDS?
HIV (a virus) attacks the immune system, leading to AIDS.
Which organ in the human body filters waste from the blood?
Kidneys filter blood, removing urea and excess water as urine.
Habitat of an organism refers to:
It's the natural home of an organism.
Study of fungi is called:
Mycology
Light-sensitive layer of the eye is:
The retina contains photoreceptor cells (rods and cones).
The pigment responsible for the green color of plants is:
Chlorophyll absorbs light for photosynthesis and reflects green.
. Which organisms fix nitrogen in the soil?
Rhizobium bacteria live in root nodules of legumes and fix atmospheric nitrogen.
The malaria parasite is transmitted by:
Female Anopheles mosquitoes transmit Plasmodium during blood meals.
Which IP class is used for multicasting?
Class D IP: 224.0.0.0 to 239.255.255.255
If x = 3, find the value of x² + 2x
Explanation: 3² + 2×3 = 9 + 6 = 15
Which device is used to detect earthquakes?
Seismographs record the intensity and duration of tremors.
Which hormone is known as the ‘stress hormone’?
Adrenaline increases heart rate and energy during stress.
Which acid is present in vinegar?
Acetic acid gives vinegar its sour taste and smell.
Which gland is called the “master gland”?
The pituitary gland controls many other endocrine glands.
The process by which plants lose water is called:
Transpiration occurs mainly through leaf stomata.
Which blood cell fights infections?
White blood cells are the defense soldiers of the body.
Which metal is used to make aircraft bodies?
Aluminum is light, strong, and corrosion-resistant.
Which type of lens is used in a magnifying glass?
A convex lens converges light and magnifies objects.
Speed of light in vacuum is approximately:
The speed of light is ~3 × 10⁸ m/s.
Which instrument is used to measure atmospheric pressure?
A barometer measures air pressure in units like mmHg or hPa.
Which region of Maharashtra is affected most by salinity intrusion?
Konkan’s coastal aquifers experience saltwater intrusion due to over-extraction.
Which lake in Solapur is known for bird migration?
Hipparga Lake is a seasonal site for migratory birds and local biodiversity.
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