Related Questions

Derivatives of neural crest are:
A Facial skeleton
B Melanocytes
C Adrenal medulla
D Hepatocytes
E Spinal cord
Bone/s derived from neural crest cells is/are
A Frontal
B Ethmoid
C Maxilla
D Occipital bone
E Parietal
The neural crest cells:
A Is derived from the junctional zone between neural plate ectoderm and embryonic ectoderm
B Gives rise to autonomic ganglia
C Gives rise to adrenal medulla
D Contributes to developing alar lamina
E Gives rise to marginal layer of the neural tube
As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at
A lower level
B higher level
C same level
D any of the above depending on the design
The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is
A 1.084
B 1.074
C 1.064
D 1.054
A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.
A Equal to
B Less than
C More than
D None of these
A weir is said to be broad crested weir, if the width of the crest of the weir is ________ half the height of water above the weir crest.
A Equal to
B Less than
C More than
D None of these
The discharge passing over an ogee spillway is given by (where, L is effective length of spillway crest and H is the total head over the spillway crest including velocity head.)
A $${\text{CL}}{{\text{H}}^{\frac{3}{2}}}$$
B $${\text{CH}}{{\text{L}}^{\frac{3}{2}}}$$
C $${\text{CL}}{{\text{H}}^{\frac{5}{2}}}$$
D $${\text{CL}}{{\text{H}}^{\frac{1}{2}}}$$
The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept
A 0.20 m
B 1.20 m
C 2.20 m
D 3.20 m
Neural crest derivates are
A Melanocyte
B Odontoblast
C Posterior root ganglia
D Infundibulum
E Oligodentrocyte

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