| Post Name | Meter Reader - Kerala Water Authority |
|---|---|
| Question Paper Code | 073/2021 |
| Category Code | 143/2019 |
| Date of Test | 3 August 2021 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
What is the ratio of lead and tin contains in a common solder ?
Answer
A. 1 : 1
2
Melting point of copper is
Answer
B. 1083 °C
3
Compressive strength of first class bricks is not less than
Answer
C. 105 kg/cm2
4
The mixture of cement, sand, aggregate and water is called
Answer
A. Concrete
5
The main part of a gully trap is
Answer
C. Water seal
6
The standard pipe thread
Answer
B. BSP
7
What process is used for removal of pathogenic bacteria from water ?
Answer
D. Chlorination
8
Temporary hardness in water is also known as
Answer
B. Carbonate hardness
9
An underground source of water
Answer
A. Springs
10
Each question is provided with four choices
Answer
D. having one correct answer.
Choose the correct answer and darken the bubble corresponding to the question number
using Blue or Black Ball Point Pen in the OMR Answer Sheet.
11
Zeolite process is used to remove
Answer
B. Water hardness
12
Colour band for high grade GI pipe
Answer
A. Red band
13
Pipe wrench is used for pipes of diameter
Answer
C. 15 to 50 mm
14
PVC pipes are used for temperature below
Answer
A. 140 °F
15
What is the storing capacity of oxygen gas cylinder for welding ?
Answer
A. 7 m3
16
A pressure which results from sudden stoppage of the flow of water in a closed pipe
is known as
Answer
A. Water hammer
17
All gases burn with the help of
Answer
D. Oxygen
18
Which tree is used for basket making ?
Answer
B. Bamboo
19
The instrument used to check the colour of water
Answer
A. Tintometer
20
What distance Indian Water Closet is fixed away from the wall ?
Answer
D. 250 mm
21
Water having pH less than ‘7’ is
Answer
C. Acidic water
22
Solvent jointed pipe lines should not be pressure tested until
Answer
D. 24 hrs
23
How are the PVC pipes specified ?
Answer
A. By outer dia of pipe
24
___________ is a mode of heat transfer which required no material medium.
Answer
C. Radiation
25
State the use of die sets.
Answer
C. To cut external threads
26
Welding is a _________ fastening.
Answer
A. Permanent
27
Minimum size of GI pipe for water supply
Answer
Question Cancelled
28
Smallest measurement from a steel rule is
Answer
B. 0.5 mm
29
Bronze is an alloy of
Answer
A. Copper and Tin
30
Bacteria which causes reduction of sludge in a septic tank
Answer
B. Anerobic
31
A nipple has
Answer
A. Male thread on both ends
32
Dual system of distribution means
Answer
C. Gravity and pumping system
33
A structure constructed for drawing water from reservoir is called
Answer
B. Intakes
34
What is the advantage of needle valve ?
Answer
A. Fine control over the flow
35
Coal tar coating is done to CI pipes for
Answer
A. To protect the pipes from corrosion
36
State the advantages of steel pipes.
Answer
C. Can withstand high pressure
37
Where are flanged joints preferred ?
Answer
B. In temporary pipe lines
38
Why foot valves are provided in suction pipe ?
Answer
B. For holding water in suction line
39
What is the advantage of intermittent water supply ?
Answer
A. Can supply to high level with pressure
40
What should be the moisture content when density of timber is determined ?
Answer
A. 12%
41
Volume of one bag of cement is
Answer
D. 0.035 m3
42
A pump having impeller is
Answer
B. Centrifugal pump
43
A soil fixture is
Answer
C. Urinals
44
A bolt has __________ thread.
Answer
B. External
45
Standard length of a hacksaw blade is
Answer
B. 30 cm
46
Siphonic action is prevented by
Answer
D. Vent pipe
47
Safety valve controls
Answer
D. Excessive pressure
48
How many days curing is required for cement joints ?
Answer
A. 7 days
49
While grinding metals, safety device used is
Answer
C. Goggles
50
The material used for providing benching is
Answer
A. Cement concrete
51
Which is the IS code for 33 grade cement ?
Answer
Question Cancelled
52
To tighten and loosen pipe fittings ________ is more useful.
Answer
C. Pipe wrench
53
A waterproof chemical is
Answer
A. Ceroplastic
54
How to prevent algae growth in OH tank ?
Answer
B. By use of copper sulphate
55
Why traps are fitted in drainage system ?
Answer
D. To prevent foul gas
56
How many pipes are there in a one pipe system ?
Answer
B. 2
57
What is the initial requirement to start a centrifugal pump ?
Answer
D. It should be full of water in pump
58
Which is a process of water treatment ?
Answer
B. Coagulation
59
State the advantage of composite pipes.
Answer
B. Curves can be easily formed
60
Expand the FD used in building drawings.
Answer
D. Floor Drain
61
How effluents from septic tank is disposed off ?
Answer
A. soak pit
62
What is the standard size of measuring box for aggregate ?
Answer
B. 40 × 35 × 25 cm
63
Why mirror test is carried out ?
Answer
A. To check the alignment
64
How much is the average quantity of sewage per capita per day ?
Answer
D. 135 litre/day/person
65
What is the height of fixing of automatic cistern for urinal ?
Answer
B. 1900 mm
66
Size of waste fitting of wash basin is
Answer
B. 32 mm
67
The valve which prevents the back flow of water is
Answer
D. Check valve
68
The water which is safe to drink is
Answer
C. Potable water
69
Bricks are laid
Answer
C. With frog up
70
One of the benefits of rain water harvesting is
Answer
A. Reduce salinity
71
The length of GI pipes available in market is
Answer
D. 6 m
72
The dia. of the hose which is usually connected to the post hydrant is
Answer
A. 63 mm
73
The first artificial cement is
Answer
A. Portland cement
74
Soil pipe is the pipe which connects the water closet to
Answer
B. Septic tank
75
The gas produced in the septic tank is
Answer
A. Methane
76
A CID joint has __________ rubber rings.
Answer
B. 2
77
1 m3 of water is equal to ____________ litre.
Answer
B. 1000
78
IS number of water closet is
Answer
D. IS 2556
79
Aluminium is extracted from
Answer
C. Bauxite
80
Scour valve is provided for
Answer
D. Wash out
81
Cast Iron Pipes are made of
Answer
A. Grey Cast Iron
82
It is used for carrying excavated materials
Answer
C. Mortar Pan
83
The fitting used on pipeline for easy to dismantle and repair
Answer
D. Union
84
Flanged joints are proffered in pipeline for
Answer
A. Temporary Joint
85
Which type of Bender has tripod stand ?
Answer
C. Portable hand operated pipe bender
86
Carbonate hardness means
Answer
A. Temporary hardness
87
The system requires less number of valves and design of pipe size is easy
Answer
C. Dead end system
88
PPR means
Answer
B. Poly Propylene Random Pipe
89
The pump fitted in water supply line to increase pressure
Answer
C. Booster pump
90
The tap used in lavatory basin
Answer
A. Pillar taps
91
In plumbing system, there is no ventilation pipe
Answer
Question Cancelled
92
Maximum size of aggregates used for RCC pipes is
Answer
B. 6 mm
93
In hand pump, when the handle lowered, then piston is
Answer
A. Upward
94
The test applied in sanitary pipe for alignment checking
Answer
D. Ball Test
95
When sudden closing a valve causes of
Answer
C. Water hammer
96
The chemical used for smell test
Answer
A. Peppermint oil
97
Plumb bob is used to verify
Answer
D. Vertical level
98
Rasp cut file commonly used for
Answer
C. Wood work
99
It is a part of water tap
Answer
C. Spindle
100
IS code of pipe wrench is
Answer
A. IS : 4003
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