Question 1

A foundation rests on______________

Accepted Answer

A)  base of the foundation
B)  foundation soil
C)  subgrade
D)  foundation soil and subgrade D

Question 2

Prestressed concrete tanks have been widely used for the storage of______________

Accepted Answer

A)  gas
B)  air
C)  fluids
D)  water C

Question 3

Members used in bridges parallel to traffic are called

Accepted Answer

A)  spandrel
B)  stringers
C)  purlin
D)  joist B

Question 4

Complex stresses may occur when

Accepted Answer

A)  loads are inclined to principal axes
B)  loads are along principal axes
C)  symmetrical section are used
D)  small values of shear and bending moment occur at section

Question 5

For initial estimate for a beam design, the width is assumed?

Accepted Answer

A)  1/10th of span
B)  1/30th of span
C)  1/15th of span
D)  1/5th of span

Question 6

The metal linear concept in prestressed tanks has proved to be success in case of

Accepted Answer

A)  air tanks
B)  water tanks
C)  fluid tanks
D)  vapour tanks

Question 7

Members used to carry wall loads over wall openings are called

Accepted Answer

A)  purlin
B)  rafter
C)  girder
D)  lintels

Question 8

What are spandrels?

Accepted Answer

A)  exterior beams at floor level of buildings
B)  interior beams at floor level of buildings
C)  exterior columns
D)  interior columns

Question 9

When a sliding joint is made what is interposed at the junction of wall and base?

Accepted Answer

A)  rubber
B)  timber
C)  plastic
D)  soil

Question 10

Find vertical prestressing force if characteristic strength is 8.2, wires are stressed at 1000n/mm2, diameter is 150mm?

Accepted Answer

A)  1500kn
B)  1230kn
C)  4567kn
D)  8967kn

Question 11

Which of the following buckling does not occur in beam?

Accepted Answer

A)  lateral buckling of whole beam
B)  local buckling of web
C)  local buckling of flanges
D)  longitudinal buckling of web

Question 12

In the fixed base joint the junction is between the tank wall and______________

Accepted Answer

A)  slab
B)  footing
C)  beams
D)  columns

Question 13

Structural members subjected to bending and large axial compressive loads are known as

Accepted Answer

A)  strut
B)  purlin
C)  beam-column
D)  lintel

Question 14

wires of 8mm diameter stressed to 1200n/mm2 are to be used for vertical prestressing?

Accepted Answer

A)  15
B)  12
C)  8
D)  4

Question 15

Calculate circumferential prestress of a cylindrical prestressed concrete water tank given that the thickness is 12mm, loss ratio is 0.75, the maximum stress under working pressure is 1n/mm2(Nd value is 720)?

Accepted Answer

A)  9.4n/mm2
B)  5.6n/mm2
C)  11.2n/mm2
D)  15.2n/mm2

Question 16

Calculate the spacing of 5mm wires having a loss ratio of 0.075, compressive stress is 10.75n/mm2, 5mm diameter wires stress is 1000n/mm2, 12 wires of 8mm diameter are stressed to 1200n/mm2(Nd = 840n/mm2)?

Accepted Answer

A)  15.4mm
B)  11.6mm
C)  12.4mm
D)  18.5mm

Question 17

What is beam?

Accepted Answer

A)  structural member subjected to transverse loads
B)  structural member subjected to axial loads only
C)  structural member subjected to seismic loads only
D)  structural member subjected to transverse loads only

Question 18

Calculate minimum wall thickness given a cylindrical prestressed water tank of internal diameter 30m over a depth of 7.5m and the permissible compressive stress at transfer is 13n/mm2 and the maximum compressive stress under working pressure is 1n/mm2 and the loss ratio is 0.75?

Accepted Answer

A)  43.8
B)  82.3
C)  64.5
D)  90.4

Question 19

Which of the following statement is correct?

Accepted Answer

A)  beams are termed as fixed beams when end condition do not carry end moments
B)  beams are termed as simply supported beams when ends are rigidly connected to other members
C)  beams are termed as fixed beams when ends are rigidly connected to other members
D)  beams are termed as continuous beams when they do not extend across more than two support

Question 20

Load transfer by a beam is primarily by

Accepted Answer

A)  bending only
B)  shear only
C)  bending and shear
D)  neither bending nor shear

Exam 3: Prestressed Concrete Tanks and Structural Members

A foundation rests on______________

Prestressed concrete tanks have been widely used for the storage of______________

Members used in bridges parallel to traffic are called

Complex stresses may occur when

For initial estimate for a beam design, the width is assumed?

The metal linear concept in prestressed tanks has proved to be success in case of

Members used to carry wall loads over wall openings are called

What are spandrels?

When a sliding joint is made what is interposed at the junction of wall and base?

Find vertical prestressing force if characteristic strength is 8.2, wires are stressed at 1000n/mm², diameter is 150mm?

Which of the following buckling does not occur in beam?

In the fixed base joint the junction is between the tank wall and______________

Structural members subjected to bending and large axial compressive loads are known as

wires of 8mm diameter stressed to 1200n/mm² are to be used for vertical prestressing?

Calculate circumferential prestress of a cylindrical prestressed concrete water tank given that the thickness is 12mm, loss ratio is 0.75, the maximum stress under working pressure is 1n/mm²(Nd value is 720) ?

Calculate the spacing of 5mm wires having a loss ratio of 0.075, compressive stress is 10.75n/mm², 5mm diameter wires stress is 1000n/mm², 12 wires of 8mm diameter are stressed to 1200n/mm²(Nd = 840n/mm²) ?

What is beam?

Calculate minimum wall thickness given a cylindrical prestressed water tank of internal diameter 30m over a depth of 7.5m and the permissible compressive stress at transfer is 13n/mm² and the maximum compressive stress under working pressure is 1n/mm² and the loss ratio is 0.75?

Which of the following statement is correct?

Load transfer by a beam is primarily by

Exam 3: Prestressed Concrete Tanks and Structural Members

A foundation rests on______________

Prestressed concrete tanks have been widely used for the storage of______________

Members used in bridges parallel to traffic are called

Complex stresses may occur when

For initial estimate for a beam design, the width is assumed?

The metal linear concept in prestressed tanks has proved to be success in case of

Members used to carry wall loads over wall openings are called

What are spandrels?

When a sliding joint is made what is interposed at the junction of wall and base?

Find vertical prestressing force if characteristic strength is 8.2, wires are stressed at 1000n/mm2, diameter is 150mm?

Which of the following buckling does not occur in beam?

In the fixed base joint the junction is between the tank wall and______________

Structural members subjected to bending and large axial compressive loads are known as

wires of 8mm diameter stressed to 1200n/mm2 are to be used for vertical prestressing?

Calculate circumferential prestress of a cylindrical prestressed concrete water tank given that the thickness is 12mm, loss ratio is 0.75, the maximum stress under working pressure is 1n/mm2(Nd value is 720) ?

Calculate the spacing of 5mm wires having a loss ratio of 0.075, compressive stress is 10.75n/mm2, 5mm diameter wires stress is 1000n/mm2, 12 wires of 8mm diameter are stressed to 1200n/mm2(Nd = 840n/mm2) ?

What is beam?

Calculate minimum wall thickness given a cylindrical prestressed water tank of internal diameter 30m over a depth of 7.5m and the permissible compressive stress at transfer is 13n/mm2 and the maximum compressive stress under working pressure is 1n/mm2 and the loss ratio is 0.75?

Which of the following statement is correct?

Load transfer by a beam is primarily by

Find vertical prestressing force if characteristic strength is 8.2, wires are stressed at 1000n/mm², diameter is 150mm?

wires of 8mm diameter stressed to 1200n/mm² are to be used for vertical prestressing?

Calculate circumferential prestress of a cylindrical prestressed concrete water tank given that the thickness is 12mm, loss ratio is 0.75, the maximum stress under working pressure is 1n/mm²(Nd value is 720) ?

Calculate the spacing of 5mm wires having a loss ratio of 0.075, compressive stress is 10.75n/mm², 5mm diameter wires stress is 1000n/mm², 12 wires of 8mm diameter are stressed to 1200n/mm²(Nd = 840n/mm²) ?

Calculate minimum wall thickness given a cylindrical prestressed water tank of internal diameter 30m over a depth of 7.5m and the permissible compressive stress at transfer is 13n/mm² and the maximum compressive stress under working pressure is 1n/mm² and the loss ratio is 0.75?