DESIGN OF SMALL DAMS CH. 4

Question 1

DAMS ARE CLASSIFIED ACCORDING TO THEIR USE THEIR HYDRAULIC DESIGN OR THE MATERIAL OF WHICH THEY ARE CONSTRUCTED.

Answer 1

TRUE

Question 2

THE PURPOSE OF DETENTION DAMS AARE ORDINARILY CONSTRUCTED TO RETARD FLOOD RUN OFF AND INCREASE THE EFFECTS OF SUDDEN FLOODS

Answer 2

FALSE

Question 3

EARTHFILL DAMS ARE THE MOST COMMON DAMS USED BECAUSE THEY ARE PRINCIPALLY CONSTRUCTED OF THE MATERIAL FROM LOCAL NATURAL MATERIAL, REQUIRING MINIMUM OF PROCESSING

Answer 3

TRUE

Question 4

WHAT IS THE MEMBRANE OF A ROCK FILL DAM MADE OF

Answer 4

ALL OF THE ABOVE

Question 5

CONCRETE ARCH DAMS ARE SUITABLE WHERE THE RATIO OF THE WIDTH BETWEEN ABUTMENTS TO THE HEIGHT IS GREATER AND WHERE THE FOUNDATION AT THE ABUTMENTS IS NOT SOLID ROCK CAPABLE OF RESISTING ARC THRUST

Answer 5

FALSE

Question 6

THE SINGLE ARCH DAM SPANS A CANYON AS ONE STRUCTURE AND IS USUALLY LIMITED TO MAXIMUM CREST LENGTH TO HEIGHT RATIO OF 20:1

Answer 6

FALSE

Question 7

A TIMBER DAM IS NOT ECONOMICAL FOR MODERN CONSTRUCTION BECAUSE THE AMOUNT OF LABOR INVOLVED IN A TIMBER DAM COUPLED WITH SHORT LIFE OF THE STRUCTURE MAKE THIS TYPE UNECONOMICAL

Answer 7

TRUE

Question 8

WHAT ARE SOME OF THE ADVANTAGES OF A ROCK FOUNDATION FOR A DAM

Answer 8

A-FREE OF SIGNIFICANT GEOLOGY DEFECTS
B-ARE RESISTANT TO EROSION AND PERCOLATION

Question 9

WHAT TYPE OF DESIGN CONCERNS SHOULD BE CONSIDERED IF A SILT OR FINE SAND FOUNDATION IS AVAILABLE?

Answer 9

ALL