1 - worth 1 points
list all commands shown on nano editor screen and explain what each one of them does

2 - worth .5 point
name 4 parts that magnetic hard drives have

3 - worth .5 point
name the most popular current power connectors for magnetic hard drives found in
personal computers today

4 - worth .5 point
name the most popular current data connectors for magnetic hard drives found in
personal computers today

5 - worth .5 point
name 5 types of servers

6 - worth .5 point
on regular servers (below mainframes)
a - name 5 server parts that are usually not found in laptops

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer