AMIE Study Circle Blog

An Air Sample taken from old waterlogged workings showed the following composition. CO 2 -3.0 percent, O 2 - 16.2 percent, N 2 - 79.5 percent, CH 4 - 1.3 percent. (The composition of normal air by volume is O 2 - 20.93 percent, N 2 - 79.04 percent & CO 2 - 0.03 percent). Find the Black damp content of the sample. (DGMS FCMC 2021)

135 ton of coal is to be hauled by direct rope haulage in a shift of 6 hours hauling time where the length of haul is 1100 m. The average speed of rope is 6 km/hr. Set changing time is 1 min & tub capacity is 1.5 ton. Calculate the number of tubs per set?

A 20 m chain was found to be 10 cm too long after chaining a distance of 2000 m. It was found to be 18 cm too long at the end of the day’s work after chaining a total distance of 4000 m. What is the true distance if the chain was correct before the commencement of the day’s work?

Number System

Measurements Fundamentals (Errors and Standards)

Design the 5 sections of a 6-stud starter for a 3-phase slip-ring induction motor The full-load slip is 2% and the maximum starting current is limited to twice the full-load current. Rotor resistance per phase is 0.03 Ω. (AMIE Winter 2023)

Differentiate vectored and non-vectored interrupts. Interrupts may be vectored or non-vectored, depending upon the provision of their pre-defined branching address. If the branching address of the interrupt, where its ISR to be located, is pre-defined, then the interrupt is designated as a vectored interrupt . On the other hand, if the interrupt is not assigned any such pre-defined branching address for its ISR, it would be taken as a non-vectored interrupt. List the advantage of segmented memory. An immediate advantage of having separate data and code segments is that one program can work on several sets of data. Perhaps the greatest advantage of segmented memory is that programs that reference logical addresses only can be loaded and run anywhere in memory.Explain importance of Hit ratio. Explain the locality of reference. Locality of Reference. The characteristics of a typical program that leads to a predictable access pattern is referred to as the locality of reference.   What...