Leaming Task 4 Group the following instruments in the conectoren section
of the Western orchestra, Write len their proper column. Choose
answer below. Do this in your notebook
String
Woodwind Brass
Percussion
Instruments Instruments Instruments
Instruments
trumpet timpani flute clarinet trombone snare dum
cymbals oboe voin bass drum chello bassoon hom
tuba
viola string boss​

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?