51.When is a system in safe state? The set of dispatchable processes is in a safe state if there exists at least one temporal order in which all processes can …
41. What is dual-mode operation? In order to protect the operating systems and the system programs from the malfunctioning programs the two mode operations were evolved System mode User mode.
31. What is Marshalling? The process of packaging and sending interface method parameters across thread or process boundaries.
21. What is Throughput, Turnaround time, waiting time and Response time? Throughput number of processes that complete their execution per time unit Turnaround time amount of time to …
11. What is context switching? Transferring the control from one process to other process requires saving the state of the old process and loading the saved state for new process. …
1. What is an operating system? An operating system is a program that acts as an intermediary between the user and the computer hardware. The purpose of an OS is …
31. What causes white smoke in two stroke locomotive engines? That is the engine running too lean (lack of fuel). This condition will lead to overheating and failure of the …
21. How pipe flanges are electrically insulated? Pipe flanges are protected from corrosion by means of electrolysis, with dielectric flanges. The piping system is electrically insulated by what is called …
11. What is annealing? It is a process of heating a material above the re-crystallization temperature and cooling after a specific time interval. This increases the hardness and strength if …
1. Explain the second law of thermodynamics. The entropy of the universe increases over time and moves towards a maximum value.
