PMV is a calculated index to represent the thermal comfort of representative occupants using the ASHRAE thermal sensation scale from -3 to +3, corresponding to the seven categories "cold," "cool," "slightly cool,"
"neutral," "slightly warm," "warm," and "hot." The PPD index assumes that people voting +2, +3, -2, or -3 on
the PMV index are
O A. Satisfied
O B. Uncooperative
O C. Dissatisfied
O D. Misunderstood

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

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.