| Post Name | Junior Instructor (Plumber) - Industrial Training Department |
|---|---|
| Question Paper Code | 167/2023 |
| Category Code | 397/2021 |
| Date of Test | 12 September 2023 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
The ideal motto of every industrial organization should be :
Answer
B. Safety first and safety throughout
2
What is used to prevent injuries to chest, stomach or frontal portion of our body from heating,
firing etc?
Answer
A. Aprons
3
What is the full form of PPE?
Answer
C. Personal Protective Equipment
4
What is the first step of avoiding accident in work place?
Answer
C. By observing safety precautions
5
What is the period referred as ‘golden hours’?
Answer
A. First 30 minutes after incident
6
Rightward welding technique is used to weld the plates of thickness :
Answer
A. Above 5 mm
7
In leftward welding technique blow pipe is held at an angle of :
Answer
D. 60 degree to 70 degree
A 3
8
Which blow pipe valve is shut off first while back fire?
Answer
C. Oxygen
9
What is the use of flux?
Answer
D. To remove oxides
10
Filler material used in brazing is known as :
Answer
B. spelter
11
Head of soldering iron is made by :
Answer
B. Copper
12
A small explosion of the flame during flame ignition in gas welding is known as :
Answer
A. Back fire
13
Which valve is shut off first while extinguishing the flame?
Answer
D. Acetylene
14
What is the colour of oxygen cylinder?
Answer
A. Black
15
Gloves used while welding is made of :
Answer
B. Asbestos
16
What is the maximum compressive strength of third class bricks?
Answer
A. 35 kg/cm2
17
Refractory bricks are also known as :
Answer
B. Fire bricks
18
Brick used at the corner of two walls is called :
Answer
D. Quoin
19
Vertical sides of door or window opening is called :
Answer
C. Jambs
20
Bonding in brick work is essential to eliminate continuous :
Answer
D. Vertical joint
21
Independent scaffolding is also known as :
Answer
A. Mason’s scaffolding
22
Which scaffolding is generally used for repairing and for adding further stories in existing
building?
Answer
A. Needle scaffolding
23
The interior and exterior finishing of masonry structure is known as :
Answer
B. Plastering
24
Machines employed for compacting concrete is known as :
Answer
D. Vibrator
25
The process of keeping the concrete damp is known as :
Answer
A. Curing
26
The most common material used as reinforcement is :
Answer
B. steel
27
The inert material in concrete is :
Answer
A. Aggregate
28
In concrete structure reinforcement is used to take :
Answer
B. Tension
29
In the proportion of cement concrete 1:2:4, 2 stands for :
Answer
C. sand
30
All joints in the masonry work should be raked out to a depth of :
Answer
C. 20 mm
31
Joint mostly used for temporary pipe lines :
Answer
C. Flanged joint
32
Joint mostly used for small diameter cast iron, wrought iron and galvanized iron pipes :
Answer
D. Screwed joint
33
PVC pipes are specified by its :
Answer
B. Outside diameter
34
Which fitting is used to close the end of a pipe having a male thread?
Answer
D. Cap
35
Which fitting is used for the off take of service connections from larger bore pipes?
Answer
Question Cancelled
36
The female part of a socket and spigot joint :
Answer
D. Socket
37
A projecting flat rim on the end of a valve is known as :
Answer
B. Flange
38
Fitting provided at the end of a ventilation pipe is called :
Answer
A. Cowl
39
What is the length of PVC pipe?
Answer
C. 6m
40
Fitting used to connect one length to another for continuation of the pipe line :
Answer
B. Socket
41
Tunnel used for tapping underground water near river, lake are called :
Answer
A. Infiltration gallery
42
What is the method of constructing tube wells in hard rock?
Answer
B. Percussion drilling
43
Base exchange process is also known as :
Answer
D. Zeolite process
44
Permanent hardness is also known as :
Answer
D. Non carbonate hardness
45
Filter which cannot remove pathogenic bacteria is called :
Answer
C. Slow sand filter
46
Pressure filters are used on :
Answer
A. Small industrial plants
47
What is the colour of naturally available zeolite?
Answer
B. Green
48
The force required to ensure the desired flow of water is called :
Answer
D. Water pressure
49
Air valves are provided at :
Answer
B. Summits
50
Sudden stoppage of the water flowing at a given pressure causes :
Answer
A. Water hammer
51
Which material is used to joint CI pipe vertical joint?
Answer
A. Lead wool
52
Zinc is commonly used for coating a steel pipe to :
Answer
B. Prevent corrosion
53
What is the melting point of Brass?
Answer
D. 983° C
54
Which is the following sentence is matching to intermittent system?
Answer
B. Water is supplied during fixed hours in a day
55
Which is the following sentence is matching to Ring system?
1. Each locality of town is divided into square or circular blocks.
2. All ends are dead.
3. Not suitable for planned roads.
4. At the sub main and branches are interconnected.
Answer
C. land4
56
Ferrule is made out of :
Answer
C. Brass and Gun metal
57
Which pump have two suction and two delivery valves are provided in the same cylinder and
water is delivered in every stroke and flow continuously?
Answer
C. Double acting reciprocating Pump
58
Which pump consists of more than one impeller?
Answer
A. Stage pump
59
When ————— works water flows through the casing, the kinetic energy of water is
converted to pressure energy before the water leaves casing?
Answer
A. Centrifugal pump
60
What is the fitted in the lower end of the suction pipe of a Centrifugal pump?
Answer
C. Foot Valve
61
What is the height difference between centre of inlet pipe and centre of outlet pipe of septic
tank?
Answer
C. 5 cm to 7 cm
62
Why 30 cm to 45 cm free board provides above liquid level of Septic tank?
Answer
Question Cancelled
63
An elbow pipe usually T pipe submerged to a depth of –––––––––– below the liquid level is
provided as inlet pipe :
Answer
A. 15 – 25 cm
64
What is the normal size of ventilation pipe of Septic tank?
Answer
D. 100 mm
65
A circular shaped pit filled with brick bat, coarse aggregates etc.... for collecting waste water
from septic tank is known as :
Answer
D. Soak pit
66
Select the suitable sentence related with septic tank :
Answer
C. The length of septic tank should be 2 to 4 times the width
67
Soak pit is also known as :
Answer
B. Seepage pit
68
The minimum internal dimension of the access shaft of Manhole is :
Answer
A. 50 cm × 50 cm
69
Weight of manhole cover provided at heavy traffic road is :
Answer
D. 255 kg
167/2023 10 A
70
An access for testing and cleaning of drain is :
Answer
A. Inspection Chamber
71
Defect is : Water flows from the over flow pipe of the Flushing Cistern.
Causes is :
Answer
Question Cancelled
72
A valve provided an unobstructed water way when fully open and it is very suitable for large
piping system :
Answer
C. Gate valve
73
Weight of chromium plated pillar tap of 15 mm size is :
Answer
D. 650 gm
74
The following is/are used to magnify the hissing noise of leaks from water supply line :
Answer
B. Acquaphone
75
If the tap leaks drop by drop the loss of water is about ————— liter / month.
Answer
A. 3000
76
Manometer is used to :
Answer
B. Measure the pressure
77
The installation and maintenance of domestic water meter is governed by :
Answer
A. IS : 2004
78
Size 2 water meters nominal size of :
Answer
D. 40 and 50 mm
79
The sluice valve generally placed at the distance of about ————— interval.
Answer
C. 150 m to 250 m
80
What is the reason of defect of the Bib tap spindle continuously slipping when tap is turned
and does not shut off?
Answer
A. Spindle thread worn out
81
The efficiency and effectiveness of trap will depend upon the :
Answer
C. Depth of water seal
82
Minimum depth of water seal of Gully trap is :
Answer
Question Cancelled
83
Intercepting trap provided at :
Answer
D. Junction of house drain and sewer
84
The system of sanitary plumbing ————— have two set of vertical pipes are laid, one for
night soil one for sullage and have provide vent pipe separately.
Answer
B. Two pipe system
85
S L means in sanitary plumbing :
Answer
A. Sewer Line
86
Which is provided for admitting air to the drain for balance the pressure and prevent
siphonage of water?
Answer
Question Cancelled
87
The testing pressure on completion of the works shall not be less than ————— time the
working pressure of the pipe.
Answer
A. 1.5
88
MSP means :
Answer
D. Main Soil Pipe
89
The diameter of main ventilation pipe should be not less than :
Answer
C. 50 mm
90
Post Fire Hydrant projected about ————— above the ground surface.
Answer
A. 60 – 90 cm
91
The height of front edge of Kitchen Sink from the floor level shall be :
Answer
C. 80 cm
92
Hot water taps are generally identified with ————— on top of the tap.
Answer
A. Red spot
93
What is the two main categories of Boilers?
Answer
B. Fire tube boiler and Water tube boiler
94
What is used in Water Heater to control temperature of water and prevent over heating?
Answer
D. Thermostat
95
Specific heat of Aluminium is :
Answer
D. 0.22
96
BTU means :
Answer
A. British Thermal Unit
97
What is provided to sewer line for fresh air to inside and escaping poisonous gases to outside?
Answer
B. Ventilating Shaft
98
————— is the name given to the transmission of heat energy by contact.
Answer
C. Conduction
99
In Solar Water Heating system the hot water naturally rises in to the tank through ————
flow.
Answer
B. Thermosiphon
100
A thermally insulated hot water storage tank is mounted ————— the collector of Solar
Water Heating system.
Answer
Question Cancelled
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