1. Inertia terms are of the same order of magnitude as convection terms
2. Convection terms are of the same order of magnitude as dissipation terms
3. Convection terms are of the same order of magnitude as conduction terms
4. Dissipation is negligible
Dissipation is negligible
1. Pr = 1
2. Pr > 1
3. Pr < 1
4. Pr = Nu
Pr = 1
1. + 0.0009 K/s
2. + 0.0048 K/s
3. - 0.0012 K/s
4. - 0.0018 K/s
- 0.0018 K/s
1. 1 m
2. 0.43 m
3. 43 m
4. 103 m
0.43 m
1. - 1/3
2. - 2/3
3. 1
4. - 1
- 1/3
1. [Ρ (πD2/4) Cp (Tmp – T1)]/I2R
2. (Tmp – T1)/PI2R
3. Ρ (Tmp – T1)/I2
4. Cp (Tmp – T1)/I2R
[Ρ (πD2/4) Cp (Tmp – T1)]/I2R
1. 3.0
2. 4.5
3. 7.5
4. 12.0
12.0
1. ductile
2. tough
3. hard
4. malleable
ductile
1. Modulus of elasticity
2. Radius of gyration about the minor axis
3. Span/length of the beam
4. Ratio of overall depth to thickness of the flange
Modulus of elasticity
1. 0.307
2. 0.5
3. 0.693
4. 1.0
0.693