09+ 2 Numerical
sampler with a volume
of 45 cm3 is filled
SOPI Samplor when the
Samples is posed Pnto a cylinder Containing
water. It displace 30cm3 of water what are
the soil.
porosity and the
void
ratio of the soil?

What precautions should you take to prevent injuries when dealing with heavy loads?

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?

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above