| Post Name | TRADESMAN (Plumber) |
|---|---|
| Department | TECHNICAL EDUCATION |
| Question Paper Code | 094/2022 |
| Category Code | 752/2021 |
| Date of Test | 27 September 2022 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Match List I with List II. List I — Personal Protective Equipments: 1. Mask, 2. Aprons, 3. Safety belt. List II — Equipment Used: (i) Protection Overalls front body, (ii) Overhead Works, (iii) Respirator Protection.
Answer
D. 1-(iii), 2-(i), 3-(ii)
2
Match List I with List II. List I — Class of fire: 1. class “A”, 2. class “B”, 3. class “D”. List II — Types of fires: (i) Combustible metals such as Magnesium, Titanium and Potassium, (ii) Flammable liquid such as gasoline, petroleum greases, tars, oil and oil-based paints, (iii) Ordinary combustibles such as wood, paper, cloth and rubber.
Answer
B. 1-(iii), 2-(ii), 3-(i)
3
class “D” (iii) Ordinary combustibles such as wood, paper, cloth and rubber Choose the correct answer from the options given below :
Answer
C. 1-(iii), 2-(i), 3-(ii)
4
Which of the following statement are correct about the additional features of universal surface gauge? (i) Fixed upright, to which a scriber attached with a snug and clamp nut (ii) The spindle can be set to any position (iii) Fine adjustment can be made quickly (iv) Consists of a heavy flat base a spindle
Answer
B. Only (ii) and (iii)
5
Which calliper is used to mark the centre of round bar?
Answer
A. Jenny calliper
6
Match List I with List IT: List I List II Types of Vice Features 1. Quick releasing vice (i) Screw is vertical 2. Hand vice (i) Trigger 3. Pipe vice (iii) Hold small objects Choose the correct answer from the options given below :
Answer
D. , 2-@i), 3-Gii)
7
The narrow and thin part of a file which fits into the handle is called
Answer
B. Tang
8
The tool used for tightening and dismantling of the G.I Pipes and fittings
Answer
D. Pipe wrench
9
Which part in drilling machine is to achieve different speed?
Answer
C. Stepped pulley
10
Which among the following pipes is bent by bench type hand operated pipe bender?
Answer
D. GI Pipe
11
Which property of metal is called mechanical property?
Answer
C. Tenacity
12
Rust is formed from iron and which other element?
Answer
B. Oxygen
13
Which metals is most abundant in Earth’s crust?
Answer
C. Aluminium
14
Muntz metal is an alloy of
Answer
A. Copper and Zinc
15
Match List I with List IT: List I List II Various Fittings Uses 1. Tee (i) | Used to connect four pipes at right angle to each other 2. Reducer (ii) Used to branch off a pipe at right angle from the water supply line 3. Cross (111) Used to connect two pipes with different diameter Choose the correct answer from the options given below :
Answer
D. , 2-(ii), 3-(iii)
16
Match List I with List IT: List I List II Grades of Galvanised Iron pipe Colour band 1. High Grade GI pipe Gi) Yellow band 2. Medium Grade GI pipe Gi) Redband 3. Low Grade GI pipe (iii) Blue Band Choose the correct answer from the options given below :
Answer
B. , 2-(ii), 3
17
What are the raw materials used for manufacturing of SW pipe?
Answer
D. Good quality Clay
18
What material is used to manufacture AC pipes?
Answer
B. Asbestos fibre, Portland cement and Silica
19
Which type pipe fitting is used to connect a service pipe and a water main?
Answer
C. Ferrule
20
The enlarged end of a cast iron pipe is called
Answer
B. Socket
21
Which is following surface sources of water?
Answer
D. All of these
22
Water can be drawn from river bed from the following?
Answer
A. Intake wall
23
Dead end system is called
Answer
C. Tree
24
Treated water is supplied to the consumers following system
Answer
D. (A) and (B)
25
Pure water is
Answer
B. Colourless
26
Which are the following are Physical test?
Answer
A. Odour
27
What methods are used for removing permanent hardness?
Answer
C. Lime soda
28
Reverse Osmosis is also known as
Answer
A. hyper filtration
29
Water has to be stored for non supply hours
Answer
B. Intermittent
30
Polyvinyl Chloride is manufacture from
Answer
A. ethylene
31
PVC is used for temperature below about
Answer
D. 140°F
32
Which symbols is indicate W.C?
Answer
A. cal
33
It is used to connect pipes of two different diameter by
Answer
D. None of these
34
The Width of trench shall be outside diameter of pipe plus —————— cm.
Answer
A. 30
35
Backfill —————— cm above the pipe shall be of fine sand or soft soil.
Answer
B. 15
36
Sullage received trap is known as
Answer
D. Floor
37
—————— is provide to prevent the passage of foul gases.
Answer
C. Trap
38
—————— RCC bed concrete required for embedding the trap.
Answer
A. 1:3:6
39
Purpose of pumps
Answer
D. (A) and (C)
40
The main components of a centrifugal pump
Answer
D. (A), (B) and (C)
41
________ are used for measuring small flow of water.
Answer
A. Positive displacement type meter
42
Water tank is constructed over airports necessary —————— light are to be fixed at top.
Answer
C. Red
43
Tank outlet pipes are fixed at —————— mm above the tank bottom level.
Answer
A. 50
44
The function of the —————— is to stop or regulate the flow in a pipeline.
Answer
D. Valve
45
Check valves are also called —————— valves.
Answer
D. (A) and (C)
46
Colour cod of hot water supply lines
Answer
Question Cancelled
47
To prevent under wastage of water —————— tap is used.
Answer
A. Self closing
48
Twin stage jet pumps are designed for suction lift of the order of —————— to ————— m.
Answer
A. 24 to 50
49
The first step in the operation of a centrifugal pump is
Answer
A. Priming
50
Hot water taps are generally identified with red spot on —————— of tap.
Answer
C. Top
51
The nut are used in temporary fastening which requires frequent removal and fixing
Answer
B. Wing nut
52
Example of permanent fastening is
Answer
C. Welded joint
53
This type of brazing, the base metal is heated to the required temperature by the application of the oxy acetylene flame.
Answer
D. Torch brazing
54
Lock nut system is used for
Answer
A. To avoid loosening by vibration
55
This type of joint will have two rows of rivets. The overlap is large enough to accommodate two rows of rivets.
Answer
D. Double rivetted lap joint
56
The process of joining metals using copper, zinc & tin alloy as filler material in which the base metal is heated above 420°C but below 850°C is called
Answer
C. Brazing
57
Copper is the preferred material for soldering bit because
Answer
D. All of the above
58
The normal capacity of storing acetylene in dissolved state is 6 m3 with the pressure ranging between
Answer
C. 15 – 16 kg/cm2
59
This inorganic flux are known as killed spirits. It is mainly used for soldering copper, brass and tin sheets.
Answer
B. Zinc chloride
60
Soft solder is the filler metals used in soldering have a melting point below
Answer
A. 427 Degree Celcious
61
In partially ventilated single stack system, the traps of the water closets are separately ventilated by a separate vent pipe called
Answer
B. Relief vent pipe
62
The straightness of the drain pipe can be tested by
Answer
Question Cancelled
63
The equipment required to conduct this test is drain plug/air bag stopper extrusion tubes, funnel and sight gauge
Answer
C. Hydrostatic test
64
Septic tank is provided for
Answer
D. All of the above
65
A vertical pipe attached to a drain line that travels through the roof with no water running through it.
Answer
B. Vent pipe
66
The size of a branch ventilating pipe on a soil pipe should be not less than
Answer
A. 32 mm
67
The main function of this pipe is to prevent water seal from being distroyed.
Answer
B. Antisiphone pipe
68
The asbestos cement sewers are
Answer
D. All of the above
69
When the bedding of sewer pipe, the centre line of sewers and their grades are transferred from the ground by means of
Answer
C. Sight rail and boning rod
70
It is a water tight chamber constructed in any building drainage system which takes wastes from gully traps/soil pipes and disposes off
Answer
A. Inspection chamber
71
In the pipe line, which joint is commonly used in pumping station
Answer
B. Flanged joint
72
What is/are the materials used in screwed joints to make it water tight?
Answer
B. Hemp yarn and zinc paint
73
In the water supply pipeline, the expansion joint may be provided with
Answer
D. Elastic rubber gasket
74
In the case of CI pipe joints, which options are correct I. Socket and spigot joint II. Flanged joint III. Collar joint IV. Adhesive joint
Answer
A. I and II are correct
75
The slope provided for self-cleansing velocity to 100 mm diameter drain pipe
Answer
C. 1:40
76
The collar joint of asbestos cement pipe shall be finished off with a fillet sloping at what angle to the surface pipe
Answer
B. 45°
77
The joint of pipe which are most suitable for carrying water lines over bridges where it has to bear vibrations
Answer
A. Dresser coupling joints
78
Laying of PVC pipe the width of trench shall be outside diameter of pipe plus
Answer
B. 30 cm
79
The ratio of cement mortar used for collar joint
Answer
A. 1:1
80
Before solvent cement applying, the inside of the fitting and outside of the pipe may be roughed with
Answer
C. Emery paper
81
The tool which is used to lift and spread the mortar during masonry work
Answer
C. Trowel
82
The portion of a brick obtained, after removing the triangular piece between the centre of one end and the centre of one side
Answer
A. King closer
83
An imaginary vertical line which includes the vertical joint separating two adjoining brick is called
Answer
A. Perpend
84
The coarse aggregates, which cannot pass through the sieve
Answer
B. IS 480
85
The plaster of brick wall with cement mortar shall be kept wet for a period of
Answer
D. 7 days
86
In which bond, alternate course of header and stretcher are laid
Answer
D. English bond
87
Scaffolding is mostly used for multi storied buildings
Answer
A. Tubular scaffolding
88
Which device is used to determine consistency and initial/final set time of cement mortar?
Answer
A. Vicats needle apparatus
89
In single day the maximum height of masonry to be raised should not be more than
Answer
A. 1 meter
90
Which of the following statement is true for first class brick? I. Minimum compressive strength 105 kg/cm2 II. Maximum water absorption after 24 hours Immersion is 20% by weight. III. Crushing strength not be less than 7 N/mm2
Answer
C. I and II are correct
91
One calorie is how many joule
Answer
D. 4.186
92
In a cold and hot water mixing faucets, the hot water connection is given to
Answer
C. Left side of the user
93
With reference to solar water heater what does ‘ETC’ means?
Answer
B. Evacuated tube collector
94
Chimney’s works based on principle of energy conservation which is also known as
Answer
B. Bernoulli’s equations
95
What is the maximum temperature of hot water through solar water heater?
Answer
D. 80°C
96
Benefits of ‘Rain water harvesting’ I. Reduce the salinity II. Produce grey water III. Avoid flooding IV. Ground water table rises
Answer
C. I, III and IV are correct
97
The quantity of heat required to rise the temperature of one gram of a substance through 1°C is called
Answer
A. Specific heat
98
Convection occurs in
Answer
A. Liquid and gas
99
Which of the following renewable source of energy?
Answer
C. Solar
100
Which instrument is used to measure the temperature of red hot metal radiations u
Answer
B. Pyrometer
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