1)
What is the difference between column
and strut?
Ans: Column:-
it is a vertical member of the frame structure.
Strut:- it can be inclined
or horizontal and generally short in length as compared to column.
2) What
are various tests for checking brick quality?
Ans: 1)
Water absorption test
2) Hardness test
3) Shape and size
4) Crushing strength test
5) Soundness.
3) What are the specification of Plaster as per CPWD Norms?
Ans:
6mm plaster for concrete surface
12mm plaster for smooth surface
15mm plaster for rough surface.
4) What are the Cement
test on site/field?
Ans:
1. Check manufacturing date, whether it packed before or after 3 months.
2.
When inserting hand in beg of cement it should be feel cool.
3.
Rubbing in between finger feel should smooth.
4. Colour should be
greenish grey.
5. The cement should free from any hard lumps,
such limps are found by the absorption
of moisture from the atmosphere, any beg of cement containing such lumps should be rejected.
5) How do
you check the quality of cement on the site?
Ans:
1. Date of Mfg: Cement strength decreases with its age.
2. Colour: Colour should be grey with light greenish shade and it should be uniform. Colour gives an indication of excess lime or clay.
3. Float test: Good cement won't float if you throw cement in water. When you put your hand in cement bag you should feel cool.
2. Colour: Colour should be grey with light greenish shade and it should be uniform. Colour gives an indication of excess lime or clay.
3. Float test: Good cement won't float if you throw cement in water. When you put your hand in cement bag you should feel cool.
6) What is the Compressive Strength of brick?
Ans: First class
brick-105kg/cm2
Second class brick-70kg/cm2
Fire brick-125kg/cm2.
Fire brick-125kg/cm2.
7) When we need/ go for Pile foundation?
Ans: Pile foundation is adopted when the Soil bearing capacity is less than 24KN/m3.
8) What are the types of foundation used in construction?
Ans: Basically
two types of foundation:-
Shallow (D<1.5m) & Deep
foundation (D>1.5m).
Shallow foundation can be
classified as spread footing, combined footing, strap or cantilever footing and mat or raft
footing.
Deep foundation can be
classified as pile footing, pier footing, caissons footing and well foundation.
Purpose: - Foundation is provided in order to safely distribute the load of
structure in the soil.
9) Name various authorities or workers on a construction site?
Ans: Senior
Engineer/Project manager
Construction Manager
Site Engineer
Site Supervisor
Land Surveyor
Contractor
Mistri
Mason/labour.
Construction Manager
Site Engineer
Site Supervisor
Land Surveyor
Contractor
Mistri
Mason/labour.
10) What Precautions is necessary in an area where
work may take place?
Ans: Crawling boards or ladders must be used when working on a sloping roof.
11) What
is the greatest Menace on a building Site?
Ans: Poor Housekeeping.
12) ln relation to scaffolding what are toe-boards provided for?
Ans: To prevent articles are falling off the scaffold
platform, or persons slipping or rolling out
under the guard rail.
13) What type of protection is must for everyone
on a construction Site?
Ans: A Safety Helmet.
14) Name two precautions which must be taken to safe guard workers. When
working on heights of scaffolding is impossible to use?
Ans: Use
of Safety Nets
Carit Study
Use of Safety Belts.
Carit Study
Use of Safety Belts.
15) Give
two actions that must be taken in relation to an excavation or opening in a floor?
Ans: Fenced off Warning notice.
16) Give
two instances when should scaffold be inspected?
Ans: Before use. After exposure to weather conditions which
may affect it.
17) What is the
maximum operating voltage for temporary lighting in buildings
under construction?
under construction?
Ans: 110 Volts.
18) What two general first aid arrangements should
be made a study construction site?
Ans: A well maintained First Aid Box Have somebody trained in First
Aid.
19) Under the construction regulations, what
height should guard rails be on
Scaffolds?
Scaffolds?
Ans:
Not greater than 1.2m and not less than 0.95m.
Ans:
Adequate preventative measures to protect persons.