| Post Name | Junior Instructor (Plumber) |
|---|---|
| Department | Industrial Training |
| Question Paper Code | 021/2023 |
| Category Code | 397/2021 |
| Date of Test | 4 March 2023 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Which fire extinguisher is used to extinguish class ‘B’ fire ?
Answer
B. Carbon-dioxide extinguisher
2
What is the period referred as “Golden Hoarse” ?
Answer
A. First 30 minutes after incident
3
What is the colour code for plastic waste bin ?
Answer
A. yellow
4
What is the immediate action to be taken in the event of fire ?
Answer
C. Raise an alarm
5
Which bolt is used to convert rotational speed into longitudinal speed ?
Answer
A. Shackle bolt
6
What is the length of pipe projection required from the vice while threading GI pipes ?
Answer
B. 150 – 250 mm
7
What are the weld positions for pipes by gas welding ?
Answer
C. 1G, 2G, 5G and 6G
8
Which type of filler metal does not require flux while gas welding ?
Answer
B. mild Steel-Type S-FSI
9
The Brass and Bronze are welded by _______ flame.
Answer
C. Oxidizing
10
The cone shaped holes that appear on the surface of plaster is known as
Answer
C. Popping
11
Which bond of bricks are laid cross wise with 5 cm lap each coarse ?
Answer
B. Header bond
12
Which type of bricks are used in construction such as bridges, storage building, etc. ?
Answer
A. Heavy duty bricks
13
The following type of GlOvES are used to protect against burns
Answer
A. Asbestos
14
How to stop bleeding of injured person ?
Answer
C. Apply pressure over the wound
15
What type of saw is used to cut a pipe ?
Answer
C. Fine pitch saw
16
Which type of filler rod contains copper, aluminium, tin along with zinc ?
Answer
C. Non-ferrous filler rod
17
The chemical formula for acetylene gas is
Answer
B. C2H2
18
What type of solder is used for soldering in heavy [thick] metal ?
Answer
C. Hard solder
19
Which maximum diameter pipes can be bend using radius collar bending machine ?
Answer
B. 20 mm dia
20
What size of nozzle number is used to weld 5 mm thick plate ?
Answer
D. Nozzle size No. 10
21
Chemically, lime is mainly
Answer
B. Calcium Oxide
22
Which of the following is known as independent scaffolding ?
Answer
B. double scaffolding
23
What is the minimum compressive strength of first class bricks ?
Answer
B. 105 kg/cm2
24
What is the percentage of strength for the cement in storage after 3 months ?
Answer
B. 85% strength
25
The angle of squint junction is generally
Answer
A. 45°
26
The hollowness of concrete block is ________ of the volume of the concrete.
Answer
B. 20 – 40%
27
What is the percentage by weight of crushed gravel sand through IS sieve No. 120 ?
Answer
D. 45 – 85%
28
The usual length of pipes varies between
Answer
C. 2 meter to 6 meter
29
The pipes joined by expansion joint are made of
Answer
B. Cast Iron
30
The other name for bell mouth end is
Answer
C. Socket End
31
What is the temperature range of heating tools used in plastic welding process ?
Answer
C. 200°C to 370°C
32
Which is the process of water softening treatment works based on ion-exchange-
process ?
Answer
A. Zeolite process
33
Which material is used to make ferrules in dual system of treated water supply ?
Answer
B. Brass
34
Nephelometer is used for determining
Answer
B. Turbidity
35
Tri-calcium phosphate and carbon is used for removing
Answer
C. Fluoride
36
The value of
Answer
A. 10
37
Which plaster thickness of not more than 25 mm finished surface resemble very
much as marble finish ?
Answer
C. Stucco plaster
38
Which is the grade of ordinary portland cement conforming IS 12269 ?
Answer
A. 53 grade
39
Which one is artificial sand ?
Answer
B. Crushing stone sand
40
The vertical sides of finished opening on both sides of doors, windows are known as
Answer
C. jambs
41
For what thickness of partition walls is the stretcher bond used ?
Answer
B. 10 cms
42
What is the ratio of bed concrete used for an Indian type water closet ?
Answer
C. 1 : 4 : 8
43
What is the desirable temperature of potable water ?
Answer
B. 10°C
44
Which is the process of water preparation for the industrial purpose ?
Answer
A. de-mineralisation process
45
Asbestos pipe was first introduced in _________ year.
Answer
C. 1920
46
Which type of joint is suitable for joining large size PvC pipes with vAlvES ?
Answer
B. Flanged joint
47
Sewer pipe line and underground pipe line are made of
Answer
D. Cast Iron
48
The quantity of chloride in case of drinking water should not be more than
Answer
C. 250 ppm
49
Which water supply distribution system is suitable for towns growing irregularly ?
Answer
B. Tree or dead end system
50
What is the size of concrete weep holes constructed in the infiltration galleries ?
Answer
C. Size 5 × 10 cm
51
Which of following is a form of heat ?
Answer
A. Energy
52
According to which of the following principles does heat transmission occur ?
Answer
A. Thermodynamics
53
The increase in temperature of any element caused by energy is called
Answer
C. Heat
54
The intensity of any element of getting hot or cold is defined by
Answer
B. Temperature
55
Heat transmission refers to
Answer
A. Exchange of heat energy
56
What is the conversion of sunlight into renewable energy for water heating using a
solar thermal collector ?
Answer
B. Solar water heater
57
With reference to solar heat, what does Etc mean ?
Answer
A. Evacuated tube collector
58
Which type of tap is used for hot and cold water pipe line in a system ?
Answer
B. 2 or 3 in mixer tap
59
Following is type of solar heater
Answer
C. Panel
60
The solar system which use flat paned collector is
Answer
A. Closed loop system
61
The piping system which same pipe is used for the discharge of waste matter and
dirty water is known as
Answer
A. One pipe system
62
The piping system in which different systems are used for the discharge of waste
matter and dirty water is known as
Answer
C. Two pipe system
63
The number of main pipes in two pipe system is
Answer
C. 4
64
For which of the following system, a separate pipe for ventilation is provided ?
Answer
C. One pipe system
65
The main test for inspection of drainage system
Answer
D. All of these
66
Other name of floor trap is
Answer
B. Nahani trap
67
Traps are used to prevent the passage of
Answer
C. Sewer gas
68
In which type of hydrant installed at underground ?
Answer
C. Flush
69
The hydrant which is installed in an underground brick is known as
Answer
B. Flush hydrants
70
The minimum size of a fire hydrants is
Answer
C. 15 cm
71
The shock and sound produced on suddenly stopping the following water by closing
the valve is known as
Answer
A. Water hammer
72
The resolution of the water hammer problem is
Answer
D. All of these
73
The scientific method meant for testing the pressure and leakage in a pipe at same
time is known as
Answer
A. Hydrostatic test
74
Which test is applied in underground drains for soundness ?
Answer
A. Water test
75
In distribution pipes, drain valves are provided at
Answer
C. lower points
76
most common surface water supply is
Answer
C. River
77
The distribution of water by gravity is
Answer
C. Is easy if at height
78
Air relief valves in water supply pipelines are provided at
Answer
C. Summits
79
High points air relief valves are provided to remove
Answer
A. Accumulated air
80
What is the use of water meter ?
Answer
C. To determine the quantity of water
81
The pipe that drain out waste water from building and house are known as
Answer
A. drain pipe
82
drainage pipe should be
Answer
D. All of these
83
Cess pools are provided
Answer
B. Away from building
84
The following is not a part of drainage system
Answer
C. Grating
85
The layout of domestic drainage system depends upon
Answer
D. All of these
86
The tanks means for collecting human waste are known as
Answer
C. Septic tanks
87
Inspection chamber is constructed in the drainage system for
Answer
D. All of these
88
Seepage pit it also called
Answer
C. Soak pit
89
man holes on sewer lines are provided for
Answer
A. Periodic cleaning
90
For house drainage minimum gradient is
Answer
C. 1 in 60
91
The shaft connecting pump and electric motors is called
Answer
D. Transmission shaft
92
The pumps that work by remaining completely or partially immersed in water are
called
Answer
B. Submersible pump
93
The function of booster pump is
Answer
A. To increase the water pressure
94
The following is a type of centrifugal pump
Answer
A. Turbine pump
95
Air lift pump is installed to draw more water from the deep well the pump is operated by
Answer
C. Compressed air
96
Which of the following containments has the characteristics of causing server public
health risk through transmission of communicable water born diseases ?
Answer
A. Pathogenic microorganism
97
Water can take a from of an invisible gas called
Answer
D. Water vapour
98
Flux in the soldering is used
Answer
C. To avoid oxidation
99
Which type of brazing is suitable for joining copper and bronze metal tubes ?
Answer
B. Silver brazing
100
Which water supply distributions system is suitable for towns growing irregularly ?
Answer
B. Tree or dead and system
Discussion
Ask a doubt or share a tip.
No comments yet — start the discussion.