Civil Engineering Drawing Questions and Answers Part-25

1. Thickened part of a flat slab over its supporting column, is technically known as _____________
a) drop panel
b) capital
c) column head
d) cannot be determined

Answer: a
Explanation: Drop panel is used for resisting high shear at the column, drop panels have thickness more than the slab thickness and they are mostly used when the span is large or shear load is high.
While column capital is the upper head of the column which is thickened to reduce the punching shear on the column, column capital also reduces the clear span.

2. The minimum cube strength of concrete used for a prestressed member, is ________
a) 50 kg/cm2
b) 150 kg/cm2
c) 350 kg/cm2
d) 100 kg/cm2

Answer: c
Explanation: M35 is minimum required concrete for prestressed concrete.
Here 35 is in N/mm2. So convert it into kg/cm2.
N/mm2 = 10 kg/cm2.
So 35 N/mm2 = 350 Kg/cm2.

3. The number of treads in a flight is equal to __________
a) risers in the flight
b) risers plus one
c) risers minus one
d) risers plus three

Answer: c
Explanation: The part of the stairway that is stepped on. It is constructed to the same specifications (thickness) as any other flooring. The tread “depth” is measured from the outer edge of the step to the vertical “riser” between steps. The “width” is measured from one side to the other.

4. For initial estimate for a beam design, the width is assumed _____________
a) 1/15th of span
b) 1/10th of span
c) 1/20th of span
d) 1/30th of span

Answer: d
Explanation: Beams are traditionally descriptions of building or civil engineering structural elements, but any structures such as automotive automobile frames, aircraft components, machine frames, and other mechanical or structural systems contain beam structures that are designed to carry lateral loads are analyzed in a similar.

5. A foundation rests on _____________
a) base of the foundation
b) subgrade
c) foundation soil
d) base of the foundation, subgrade and foundation soil

Answer: d
Explanation: A foundation (or, more commonly, base) is the element of an architectural structure which connects it to the ground, and transfers loads from the structure to the ground. Foundations are generally considered either shallow or deep. Foundation engineering is the application of soil mechanics and rock mechanics (Geotechnical engineering) in the design of foundation elements of structures.

6. __________________ is any work involved in fixing or unfixing any pipe, plumbing fixture or appliance including; any trap, waste or soil pipe, ventilation pipe, or overflow pipe and any pipe that supplies or is intended to supply water.
a) Domestic plumbing
b) Flooring
c) Sanitary plumbing
d) Plastering and putting

Answer: c
Explanation: Sanitary plumbing is any work involved in fixing or unfixing any pipe, plumbing fixture or appliance including; any trap, waste or soil pipe, ventilation pipe, or overflow pipe and any pipe that supplies or is intended to supply water.
All sanitary plumbing must comply with the Building Code and, where a building consent is required; the work must be checked by the building inspector from the building control authority in your area (your local council). A code compliance certificate cannot be issued until the work has been signed off by the building inspector

7. __________ is the highest form of decontamination.
a) Sterilization
b) Sanitation
c) Disinfection
d) Hygiene

Answer: a
Explanation: The process of rendering an article safe to handle, by cleaning with or without disinfection or sterilization. Disinfection: The process of killing or removing pathogenic micro-organisms, except for bacterial spores and prions from inanimate objects or skin, to a level which is not harmful to health.

8. Sanitary plumbing includes the installation of appliances such as dishwashers and washing machines; the replacement or repair of taps, ball valves and plugs.
a) True
b) False

Answer: b
Explanation: Sanitary plumbing does not includes the installation of appliances such as dishwashers and washing machines; the replacement or repair of taps, ball valves and plugs.

9. The lowest or weakest level of decontamination is sanitation.
a) True
b) False

Answer: b
Explanation: The strongest level of decontamination in increasing order is: Sanitation, Antiseptic, Disinfection, Sterilization.

10. Anti-siphonage pipe is connected to _____________
a) top of P trap W.C.
b) main soil pipe
c) bottom of P trap W.C.
d) side of water closet

Answer: c
Explanation: A vent is open at top and bottom, to facilitate exit of foul gases. It is carried at least one meter higher than the roof level. Rain water pipe: it is a pipe which carries only the rain water. Anti-siphonage pipe: it is pipe which is installed in the house drainage to preserve the water seal of traps