MODULE 3 (1)

Question 1

a structural framework composed of a series of straight members so arranged and fastened together that external loads applied to it will cause only direct stress in the members.

Answer 1

truss

Question 2

Web-members subjected to tensile stresses

Answer 2

tension web-members

Question 3

Web-members subjected to compression stresses

Answer 3

compression web-members

Question 4

a member, design to resist either tension or compression

Answer 4

counterbrace

Question 5

A member of a truss system which acts only for a particular partial loading, and which has a zero stress when the truss is completely loaded is called

Answer 5

counter

Question 6

When a truss is supported at its ends by columns, the truss together with its columns, considered as a unit, is called

Answer 6

bent

Question 7

The portion of the roof between two adjacent trusses is called

Answer 7

bay

Question 8

A complete structural frame, or truss, is one in which is made up of the minimum number of members required to provide a complete system of triangles fixing the relative positions of a given number of panel joints

Answer 8

Complete Frame

Question 9

One in which the number of members is less than that required by the equation given above.

Answer 9

Incomplete Frame

Question 9

A redundant frame is one which contains more members than that required by the equation given above.

Answer 9

Redundant Frame

Question 10

is the frame which is composed of such members, which are just sufficient to keep the frame in equilibrium, when the frame is supporting an external load.

Answer 10

perfect frame/ complete frame

Question 11

A truss supported at one end-joint and other joint not an end-joint.

Answer 11

Overhanging end span

Question 11

A truss supported at each end-point.

Answer 11

Simple Truss

Question 11

A truss where the entire support is at one end only.

Answer 11

Cantilever span

Question 12

consist of two columns and a beam or girder that are rigidly connected at their joints.

Answer 12

Rigid frames

Question 13

are formed and site cast in the same manner as concrete floor systems.

Answer 13

Reinforced concrete roof slabs (roof decks)

Question 14

powder form waterproofing compound mixed with the cement-aggregate mixture.

Type of waterproofing

Answer 14

Integral type

Question 15

a hot or cold membrane applied to the surface; for example asphalt paper laid with hot asphalt or self sealing asphalt paper.

Type of waterproofing

Answer 15

Membrane type

Question 16

a fluid applied elastomeric coating formulated to waterproof and preserve the substrate of concrete, wood, and steel. The wide temperature range, withstands extreme thermal movement, settling and cracking; resists puncture and tearing; and can be applied by roller, brush, spray or squeegee.

Types of Waterproofing

Answer 16

Fluid type

Question 17

powder form waterproofing compound mixed with water and applied by brush to the surface to be waterproofed.

Types of Waterproofing

Answer 17

Cementitious type

Question 18

A flexible blanket- type thermal insulation, commonly used as insulation between studs or joints in frame construction; also used as an acoustical material or a component in sound-insulating construction. Usually made from rock, slag, or glass fibers. Sometimes has a vapor barrier on one side or is entirely enclosed in paper with a vapor barrier on one side.

Answer 18

Batt Insulation

Question 19

fibrous type and granular type

Types of Thermal Insulators

Answer 19

Loose Fill

Question 20

is made from fibrous materials such as mineral wool, wood fiber, cotton fiber or animal hair and made into batt[1] or boards.

Types of Thermal Insulators

Answer 20

Blanket Insulation

Question 21

stiff and inelastic such as foamed plastic, cellular glass, foamed concrete, etc. Example is STYROFOAM

Types of Thermal Insulators

Answer 21

Block or Rigid Slab Insulation

Question 22

a polyurethane product made by combining a polyisocyanate and a polyester resin. This type of insulation can be applied either by pouring or by spraying. The basic ingredients for both are drawn from their containers, measured and mixed by machine.

Types of Thermal Insulators

Answer 22

Foamed-in Place Insulation

Question 23

materials used are polyurethane foam asbestos fiber mixed with inorganic binders; vermiculite aggregate with a binder such as Portland cement or gypsum and perlite aggregate using gypsum as a binder. Machines are used for blowing these insulations into place and as a result, the shape and irregularity of the surface being insulated is of little consequence

Types of Thermal Insulators

Answer 23

Sprayed-on Insulation