Answer: Regardless of feature size (RFS)
Explanation:
It is a pre-selected condition for every geometric tolerance which is the second rule of GD&T and it requires no repairs, it is adopted when size feature has no effect on defined tolerance. RFS implies that GD&T callout is not dependent on size dimension. Least Material Condition (LMC) cancels out this rule.
•Reasons for using RFS.
1. It can not be easily determined.
2. It can be used anytime but can be ignored if it is specified.
Answer:
15.8529 kW
Explanation:
Rate of heat loss = 60000 Btu/h
Internal heat gain = 6000 Btu/h
Rate of heat required to be supplied
Converting 54000 Btu/h to kW (kJ/s)
1 Btu = 1.05506 kJ
1 h = 3600 s
∴ Required rated power of these heaters is 15.8529 kW
Answer:
0.234
Explanation:
True stress is ratio of instantaneous load acting on instantaneous cross-sectional area
σ = k × (ε)^n
σ = true stress
ε = true strain
k = strength coefficient
n = strain hardening exponent
ε = ( σ / k) ^1/n
take log of both side
log ε = ( log σ - log k)
n = ( log σ - log k) / log ε
n = (log 578 - log 860) / log 0.20 = 0.247
the new ε = ( 600 / 860)^( 1 / 0.247) = 0.234
Answer:
Explanation:
Implementing strategic system requires extensive organizational change coupled with a period of changing from one stage of socio-technical level to another. This changes are known as strategic transitions and are not easily achieved.
It must be noted that not all strategic systems are rewarding and can be very expensive to put together. It is easier to copy most information systems from other firms because strategic advantage can be most times unsustainable.