1. . 3.0 , 0.50. ,
a. ?
b. ?
.
2. . 3.0 , 0.50. , 0, ?
3. F(H), ( ), =12.7∙10³, d=45.
4. (/), Q=0.2³/, d=100.
5. D () , Q=50/; v=5 /.
6. , Q=50/. v=2 /, v=4 /.
7. , Q=30/, 1000/, η=0.94.
:
Q=Q/η;
V= Q/n
1=10³ ³
8. N () N () , Q=30/, =2, η=0.98
9.. - , Q=4/, 980/, η=0.98.
: Q=Q/η;
V= Q/n
1=10³ ³
10. - , Q=4/, =10, η=0.91.
11.. - , =480, =20, n=60/, η=0.94.
:
=/η;
V0=∙2π/;
Q= V0∙n/60
12. - , , , =480, =20, n=60/, η=0.91.
:
N=∙2πn/60 ()
, N=N/η
13.. - , Q=4³/, 980/, η=0.98.
|
|
|
:
Q=Q/η;
V= Q/n
1=10³ ³
14.. - , Q=4³/, =16, η=0.94.
:
N=Q ()
, N=N/η
15. - , = 480 600/, η=0.94, ηυ=0.97. =20.
:
=/η;()
V0=∙2π/;(³)
Q= V0∙n/60 (³/)
Q=Q/ηυ (³/)
16. , - , = 480 600/, η=0.94, ηυ=0.97. =20.
:
=/η;
V0=∙2π/;
Q= V0∙n/60
17. : Q=20/, Δ=20, υ=4/. μ=0.61, ρ=900.
:
S= Q∙10³/(60μ√(2Δ/ρ)∙100)
D=1.13√(Q∙10³/(υ∙10²∙60))
18. Q=6.3³/. υ=2/.
D=1.13√(Q∙10³/υ)
19. 25 - 121810. =32. σ=549. n =3.
:
σ=σ/ n;
=0.45;
δ=∙(D+m)/2σ10³
20. D , Q=50/; υ=5/.
:
N=Q ()
, N=N/η
