1. Unit of measurement in MKS of DPC is ____________
a) per sq m
b) sq m
c) sq cm
d) per cu m
Explanation: Damp proofing is defined by the American Society for Testing and Materials (ASTM) as a material that resists the passage of water with no hydro-static pressure and waterproof as a treatment that resists the passage of water under pressure. Generally, damp proofing keeps moisture out of a building where vapor barriers keep interior moisture from getting into walls. Moisture resistance is not necessarily absolute: it is usually defined by a specific test method, limits, and engineering tolerances.
2. Unit of payment in MKS of door and window sill is __________
a) per no
b) per m
c) per cu m
d) per sq m
Explanation: On a door frame, the sill is the portion of the door frame that runs along the bottom and sits directly on the foundation of your floor. It is the cross piece that actually completes the pre-installed door frame. The sill is actually underneath your threshold.
3. Unit of payment in FPS of supply of lime slaked is _________
a) per acre
b) per cwt
c) per gl
d) per maund
Explanation: Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula Ca(OH)2. It is a colourless crystal or white powder and is obtained when calcium oxide (called lime or quicklime) is mixed, or slaked with water. It has many names including hydrated lime, caustic lime, builders’ lime, slack lime, cal, or pickling lime. Calcium hydroxide is used in many applications, including food preparation. Limewater is the common name for a saturated solution of calcium hydroxide.
4. What is the actual size of standard modular brick-tile?
a) 19cm*9cm*4cm
b) 19cm*9cm*9cm
c) 20cm*10cm*10cm
d) 19cm*9cm*7cm
Explanation: For India, a brick of standard size 190 mm x 90 mm x 90 mm is recommended by the BIS. With mortar thickness, the size of such a brick becomes 200 mm x 100 mm x 100 mm and it is known as the nominal size of the modular brick. Thus the nominal size of brick includes the mortar thickness.
It is found that the weight of 1 cum of brick earth is about 18 KN. Hence the average weight of a brick will be about 30 to 35 N.
5. Actual thickness of wall with 2.5 brick is __________
a) 30cm
b) 50cm
c) 49cm
d) 20cm
Explanation: A two-by-four wall stud is 31⁄2 inches wide, and an interior wall typically has 1⁄2-inch drywall installed on both sides, bringing the wall thickness to 41⁄2 inches. Walls that contain plumbing, such as walls behind sinks, however, should be thicker than standard walls. Two-by-six wall studs are 51⁄2 inches wide and they provide a larger stud space for running drainpipes, air ducts or other mechanical elements. With the addition of drywall on both sides, a two-by-six wall is 61⁄2 inches wide.
6. The latrine seat with flushing cistern, flushing pipes are, etc., are usually taken as ______ set for estimation.
a) Equal
b) One
c) Two
d) Separate
Explanation: A latrine is a toilet or an even simpler facility which is used as a toilet within a sanitation system. For example, it can be a communal trench in the earth in a camp to be used as emergency sanitation, a hole in the ground (pit latrine), or more advanced designs, including pour-flush systems.
The term “latrine” is still commonly used in emergency sanitation situations, as well as in army camps. Nowadays, the word “toilet” is more commonly used than “latrine”, except for simple systems like “pit latrine” or “trench latrine”. The use of latrines was a major advance in sanitation over more basic practices such as open defecation, and helped control the spread of many waterborne diseases.
7. According to ISI method of measurement, the order of the sequence is _______
a) Length, breadth, height
b) Breadth, height, Length
c) Height, Length, breadth
d) Width, Length, breadth
Explanation: The first dimension is length (L). Length is always the longest side of the box that has a flap. The second dimension is width (W). Width is the second longest side with a flap. The third dimension is height (H). Height is the only dimension without a flap.
8. The detention period in a septic tank is assumed to be at _________
a) 20 min
b) 30 min
c) 40 min
d) 25 min
Explanation: A septic tank can be defined as primary sedimentation tank with large detention time (12 to 36hrs against a period of 2hrs in an ordinary sedimentation tank). In un-sewered rural and urban areas septic tanks are suitable for disposal of night soil. But sufficient water should be available as water is required for flow of the night soil from latrine to the septic tank and for proper functioning of the septic tank.
9. Cost of fittings and their fixing is specified for the following sanitary fittings ________
a) Water closets
b) Flushing pipes
c) Sinks
d) All of the mentioned
Explanation: (Catagorized also as hygienic fittings and tubing) were developed and are used because they are cleanable; either by dismantling a system and manually cleaning it or using a CIP (clean in place) process. They limit entrapment areas where bacteria could form or harbor. They are also corrosion resistant.
10. The area of a sloping surface of a protective embankment of mean height d, side slopes S: 1 and length L is __________
a) d x d x s
b) (d2 x (ds)2)1/2
c) L.D (1 + s2)1/2
d) 2 L.D (1 + s2)1/2
Explanation: An embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil, sand, clay, or rock. It has a semi-previous waterproof natural covering for its surface and a dense, impervious core. This makes such a dam impervious to surface or seepage erosion. Such a dam is composed of fragmented independent material particles. The friction and interaction of particles binds the particles together into a stable mass rather than by the use of a cementing substance.