KENYA MEDICAL TRAINING COLLEGE
LAKE VICTOTIA CAMPUS
P. O. BOX 2268- 40100
KISUMU
FACULTY OF PUBLIC HEALTH
DAPERTMENT OF ENVIRONMENTAL HEALTH SCIENCES
BY
JUNE PAULVINE
REVISION QUESTIONS AND ANSWERS
2015/2018 CLASS
PAPER I: BUILDING CONSTRUCTIONS TECHNOLOGY
1
, TECHNICAL DRAWING
Qn 1. Using as scale of 1:20 , draw a cross-sectional plan of a strip foundation from footing of
600mm by 200mm projection. The wall thickness to be 200mm. (20mks)
Qn 2. State five organizations involved in the approval of building plans. (5mks)
i. Building inspectors
ii. Public health department
iii. Fire department
iv. Highway department
v. National Environmental Management authority (NEMA)
vi. Physical planner
Qn 3. Enumerate any five factors you will look for when scrutiny a building plan. (5mks)
Drainage
Lighting and ventilation
Type of foundation
Purpose of the building
Types of building materials used.
Qn 4.Mr. Clinton Nyamweya P. O. Box 310-40100, Kisumu has asked you to design a self-
contained bedsitter measuring 4.5m x 3.0m approximately suited for a college student
accommodation be built on Plot No. KSM/ML/280 situated in Milimani Estate Kisumu.
Using a suitable scale, draw the plan of the proposed bedsitter for onward submission for the
approval. Show clearly the drainage system connected to a septic tank. (20mks)
Qn 5. MOCK. (a) Describe any five points you would look for as a PHO when scrutinizing
residential/commercial building plans. (10mk
(b) Using a scale of 1:50, draw a cross-section through a modern classroom whose dimensions
are 12m by 8m up to the wall plate. The brick wall thickness is 225. The ceiling height is 3m.
Include the following details:
Concrete strip foundation
Hardcore filling = 300
Over site concrete = 200
Doors height = 2.1m
Blinding = 50
DPC at 150mm above the ground level
Subsoil load bearing capacity of 1000mm deep. (30mks)
2
,BUILDING CONSTRUCTION
Qn 1(a) Reasons for demolishing a building.
(b) Explain critical sages a building inspector/PHO will conduct inspection on undergoing
building construction.
i. Excavation (foundation bed)
ii. Laying of concrete foundation
iii. Laying of over site concrete
iv. Placing of DPC
v. Reinforcement (concrete after shattering is removed)
vi. Roofing
vii. Drainage and plumbing
viii. Sewer connection
ix. Final inspection before issuance of certificate of occupation
(c) Name and explain briefly the causes and remedies of the 3 types of dampness encountered
in buildings
(d) List 6 materials used for DPC
(e) Functions of hardcore
(f) List possible causes of uneven settlement
Qn 2. Explain the ideal requirements of a building site that conforms to the building code
LOK.
-Accessibility
-I should have a bearing capacity for the loads of the building
-It should be water proof
-It should be made of durable materials
3
, -It should have adequate lighting and ventilation
Should not be on top of a hill on the leeward side
-Should not be with the belt of trees
- Should be near to social amenities
-Should be near reliable electric power and water supply
-Should not be on a made up ground, swampy
Qn 3. Explain the process of plastering in a masonry wall.
z
Qn 4. Describe 5 types of contracts that can be used in building construction.
Lumpsum, measured, cost plus and construction mg.
Qn 5. What is a schedule material and state the major components of a schedule material.
Qn 6. Presence of moisture in building has been an adverse effect to both structure and
occupants. As a PHO equipped with knowledge and skill in building technology.
(a) Describe 3 possible ways moisture can gain access into a building and state the associated
health effects
Rising dampness-walling units below the ground level draw moisture from one course to
another by capillaries attraction due to water logged sites ,inferior or absence of horizontal
DPC/DPM, high water table or placing of soil or sand beyond or above horizontal DPC in the
outer part of the building.
Penetrating dampness-driving rain beating against walls which may absorb water to show
dampness’ in the internal surfaces due to poor quality cement, mortar porous material, e.g.
badly burnt bricks inferring down or concrete blocks, leaking roofs or roof water tanks,,
pipes, poorly protected parapet walls or downward movement of water which finds its way
into the internal surfaces of the building.
Soaking dampness-caused by rains soaking either down from top of the walls, or rain gains
into a room through leak roof or water leaking from defective water pipes, cisterns or storage
tanks.
(b) Explain the associated health effects of dampness.
There may be dislocation by efflorescence
Damp walls deteriorate end too rapidly
Plaster will absorb water to become porous ,crumble and disintegrate
Paints will tend to flake and peel off and white wash will leach off.
Preservatives[water soluble]-treated
Wood work-floor finishes ceiling roof members skirting etc will decay
Air from a damp house is impure and stuffy decaying wood work
Dump house is uncomfortable to live due to excessive coldness
4
LAKE VICTOTIA CAMPUS
P. O. BOX 2268- 40100
KISUMU
FACULTY OF PUBLIC HEALTH
DAPERTMENT OF ENVIRONMENTAL HEALTH SCIENCES
BY
JUNE PAULVINE
REVISION QUESTIONS AND ANSWERS
2015/2018 CLASS
PAPER I: BUILDING CONSTRUCTIONS TECHNOLOGY
1
, TECHNICAL DRAWING
Qn 1. Using as scale of 1:20 , draw a cross-sectional plan of a strip foundation from footing of
600mm by 200mm projection. The wall thickness to be 200mm. (20mks)
Qn 2. State five organizations involved in the approval of building plans. (5mks)
i. Building inspectors
ii. Public health department
iii. Fire department
iv. Highway department
v. National Environmental Management authority (NEMA)
vi. Physical planner
Qn 3. Enumerate any five factors you will look for when scrutiny a building plan. (5mks)
Drainage
Lighting and ventilation
Type of foundation
Purpose of the building
Types of building materials used.
Qn 4.Mr. Clinton Nyamweya P. O. Box 310-40100, Kisumu has asked you to design a self-
contained bedsitter measuring 4.5m x 3.0m approximately suited for a college student
accommodation be built on Plot No. KSM/ML/280 situated in Milimani Estate Kisumu.
Using a suitable scale, draw the plan of the proposed bedsitter for onward submission for the
approval. Show clearly the drainage system connected to a septic tank. (20mks)
Qn 5. MOCK. (a) Describe any five points you would look for as a PHO when scrutinizing
residential/commercial building plans. (10mk
(b) Using a scale of 1:50, draw a cross-section through a modern classroom whose dimensions
are 12m by 8m up to the wall plate. The brick wall thickness is 225. The ceiling height is 3m.
Include the following details:
Concrete strip foundation
Hardcore filling = 300
Over site concrete = 200
Doors height = 2.1m
Blinding = 50
DPC at 150mm above the ground level
Subsoil load bearing capacity of 1000mm deep. (30mks)
2
,BUILDING CONSTRUCTION
Qn 1(a) Reasons for demolishing a building.
(b) Explain critical sages a building inspector/PHO will conduct inspection on undergoing
building construction.
i. Excavation (foundation bed)
ii. Laying of concrete foundation
iii. Laying of over site concrete
iv. Placing of DPC
v. Reinforcement (concrete after shattering is removed)
vi. Roofing
vii. Drainage and plumbing
viii. Sewer connection
ix. Final inspection before issuance of certificate of occupation
(c) Name and explain briefly the causes and remedies of the 3 types of dampness encountered
in buildings
(d) List 6 materials used for DPC
(e) Functions of hardcore
(f) List possible causes of uneven settlement
Qn 2. Explain the ideal requirements of a building site that conforms to the building code
LOK.
-Accessibility
-I should have a bearing capacity for the loads of the building
-It should be water proof
-It should be made of durable materials
3
, -It should have adequate lighting and ventilation
Should not be on top of a hill on the leeward side
-Should not be with the belt of trees
- Should be near to social amenities
-Should be near reliable electric power and water supply
-Should not be on a made up ground, swampy
Qn 3. Explain the process of plastering in a masonry wall.
z
Qn 4. Describe 5 types of contracts that can be used in building construction.
Lumpsum, measured, cost plus and construction mg.
Qn 5. What is a schedule material and state the major components of a schedule material.
Qn 6. Presence of moisture in building has been an adverse effect to both structure and
occupants. As a PHO equipped with knowledge and skill in building technology.
(a) Describe 3 possible ways moisture can gain access into a building and state the associated
health effects
Rising dampness-walling units below the ground level draw moisture from one course to
another by capillaries attraction due to water logged sites ,inferior or absence of horizontal
DPC/DPM, high water table or placing of soil or sand beyond or above horizontal DPC in the
outer part of the building.
Penetrating dampness-driving rain beating against walls which may absorb water to show
dampness’ in the internal surfaces due to poor quality cement, mortar porous material, e.g.
badly burnt bricks inferring down or concrete blocks, leaking roofs or roof water tanks,,
pipes, poorly protected parapet walls or downward movement of water which finds its way
into the internal surfaces of the building.
Soaking dampness-caused by rains soaking either down from top of the walls, or rain gains
into a room through leak roof or water leaking from defective water pipes, cisterns or storage
tanks.
(b) Explain the associated health effects of dampness.
There may be dislocation by efflorescence
Damp walls deteriorate end too rapidly
Plaster will absorb water to become porous ,crumble and disintegrate
Paints will tend to flake and peel off and white wash will leach off.
Preservatives[water soluble]-treated
Wood work-floor finishes ceiling roof members skirting etc will decay
Air from a damp house is impure and stuffy decaying wood work
Dump house is uncomfortable to live due to excessive coldness
4
