List of top Questions asked in OJEE- 2025

The following data pertain to a sewage sample: Initial DO = 10 mg/L, Final DO = 2.5 mg/L, Dilution = 2%. The BOD of given sewage sample is:
Which among the following is a weedicide?
Modern coal-based thermal power stations pollute the atmosphere by adding:
System calls are usually invoked by using which one of the following means?
Color test of water is done with an instrument called
Self-cleansing velocity is:
Which one of the following is not necessarily saved on a context switch between two processes?
Von Neumann computers belong to which one of the following classes of computers?
In a compiler, type checking is normally done during which phase?
Which one of the following classes of statements usually produces no executable code when compiled?
To prove that a problem $\chi$ in NP is NP-complete, it would be sufficient to show which one of the following to be true?
Which one of the following derivations does a top-down parser use while parsing an input string? The input is assumed to be scanned from left to right.
Suppose you are given pointers to the first and the last nodes of a singly linked list, which one of the following operations would require traversal of the linked list?
The output of a lexical analyzer is which one of the following?
Which one of the following problems is undecidable?
Which one of the following is an important advantage of the DMA mode of data transfer over programmed data transfer?
Suppose in a time-shared operating system, a certain process is performing I/O. It must be in which one of the following states?
What is the time complexity of the Bellman-Ford single-source shortest path algorithm on a completely connected weighted graph of $n$ vertices?
How many null links does an arbitrary binary tree with $n$ nodes have?
Which one of the following recurrence relations best represents the time complexity of the binary search algorithm running on an ordered array of $n$ elements?
A column that can support same load in compression as it can in tension is called
How much percentage increase of permissible stress is allowed when dead load, live load and wind load are considered together in working stress method?
What is the modular ratio to be used in the analysis of RC beams using working stress method if the grade of concrete is M20?
Which of the following factors is included in the limit state of strength?
Permanent dimension changes due to loading is termed as: