| Post Name | TECHNICIAN GR II - BOILER OPERATOR - PART I AND PART II |
|---|---|
| Department | KCMMF LTD |
| Question Paper Code | 158/2015 |
| Date of Test | 25 August 2015 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
In the fire tube boilers :
Answer
A. The hot gases pass through tubes and water surrounds the tubes
2
Lancashire boiler is : St
Answer
A. Internally fired boiler
3
| Which of the following is a fire tube boiler?
Answer
D. Locomotive boiler
4
Natural circulation type boiler works on the principle of :
Answer
A. Differential density of hot and cold water
5
In locomotive boiler maximum pressure is the order of :
Answer
C. 20bar
6
Which of the following are classified as high pressure steam boiler?
Answer
D. All of the above
7
Stirling steam boiler has:
Answer
C. Three steam drums, two water drums
8
Equivalent evaporation as referred to steam generators is :
Answer
B. Quantity of steam produced from water at 100° C to dry saturated steam at 100°C
9
Which of the following boilers used LPG as fuel?
Answer
B. Integral furnace boiler
10
Which of the these boilers works in the temperature range below 100°
Answer
C. Waste heat boiler
11
The functions of the following fitting is to extinguish boiler furnace fire in case of water level
falling below safe level :
Answer
D. Fusible plug
12
Which of these safety valves is used in locomotive and marine engines?
Answer
B. Spring loaded safety valve
13
Which of these boiler fitting is used to control the supply of water to the boiler and to prevent
the escaping of water from the boiler when the pump pressure is less?
Answer
A. Feed check valve
14
The function of the following fitting in boiler is to regulate the flow of steam from one steam |
pipe to other :
Answer
D. Stop valve
15
The function of the following fitting in a boiler is to prevent the pressure exceeding the
maximum limit :
Answer
C. Safety valve
16
Which of these component on the boiler is used to recover the waste heat of the flue gases for
heating feed water?
Answer
B. Economiser
17
Which of these component on the boiler is used to increase the temperature steam above
saturation temperature?
Answer
C. Super heater
18
Function of a steam separator : |
Answer
A. To remove the entrained water particles from the steam conveyed to steam engine
19
Which of the following as referred to steam boiler are defined as mountings? |
Answer
B. Economiser |
20
Which of these boiler fitting is used to inject feed water into the boiler?
Answer
C. Both of them
21
Draught produced by chimney is described as:
Answer
B. Natural draught
22
Artificial draught is produced by :
Answer
D. All of the above
23
For locomotive boilers the draught is produced by :
Answer
C. Steam jet
24
For the same draught produced the power of induced draught fan as compared to forced
draught fan is:
Answer
A. More
25
The artificial draught is normally designed to produce :
Answer
D. All of the above
26
The location of fan for induced draught is :
Answer
A. Near bottom of chimney
27
For maximum discharge of hot gases through the chimney, the height of the hot gas column
producing draught is :
Answer
B. Equal to the height of the chimney
28
The pressure at the furnace is minimum in case of :
Answer
C. Balanced draught system
29
Chimney efficiency is approximately :
Answer
B. 0.25%
30
Artificial draught is produced by :
Answer
D. All the above
31
Equivalent evaporation as referred to steam generator mean :
Answer
C. Quantity of dry saturated steam generated at 1 bar from water at 100°C
32
Boiler efficiency is defined as :
Answer
A. Ratio of heat output to heat input
33
Factor of evaporation as referred to boiler :
Answer
B. Equivalent evaporation in kg/hr
Actual evaporation in kg/hr
34
The main objectives of boiler trail is to:
Answer
D. Determine both efficiency and capacity
35
Evaporation ratio is defined as :
Answer
A. Quantity of steam generation
Quantity of fuel consumption
36
Boiler turn down is defined as:
Answer
C. Ratio between full boiler output and boiler output when operating at low fire
37
When was Indian boiler regulations created?
Answer
B. 15t8 September 1930
38
Which steam boiler are regulated by Indian boiler regulation?
Answer
A. Any closed vessel exceeding 22.75 litres capacity which is used for generating
steam
39
Define the boiler terminology MCR :
Answer
C. Maximum continuous rating
40
What is combustion space in a boiler?
Answer
C. Itis the furnace volume in cubic metres per kg of fuel fired per hour
41
The transformation from solid to gas phase is called :
Answer
D. Sublimation
42
Which increase in pressure the boiling point of water?
Answer
A. Increases
43
Super heated steam is:
Answer
B. Steam at a temperature above boiling point of water
44
Attriple point:
Answer
B. Solid, liquid and vapour co-sent
45
Dryness fraction is defined as :
Answer
C. Mass of dry steam
Man of dry steam of mass of water vapour in suspension
46
Saturated steam 100% dry contains :
Answer
D. 100% latent heat
158/2015 8 A
47
Ifasteam water content is 5%, its dryness fraction 1s:
Answer
A. 95%
48
The energy content of steam is called :
Answer
D. Enthalpy
49
The end point of the pressure-temperature curve that designates condition under which a
liquid and its vapour can co-sent? |
Answer
C. Critical point oe
50
Only throttling calorimeter is used for measuring :
Answer
B. Very high dryness fraction up to 0.98
51
Air at 20°C and 101.325 kpa is called:
Answer
B. NTP
52
Which of these is a solid fuel?
Answer
A. Anthroate
53
Calorific valve of Anthroate is approximately: |
Answer
D. 35600 KJ/kg
54
Calorific value of determined at constant volume :
Answer
D. May be more or may be less depending upon molecular contraction or expansion of
the products of combustion
A 9 158/2015
[P.T.O.]
55
The calorific valve of hydrogen/kg when burnt at constant pressure in atmosphere of air as
compared to that burnt at constant volume is :
Answer
B. More
56
Bomb calorimeter is used to determine the calorific value of :
Answer
C. Both solid and liquid fuels
57
Junker’s calorimeter is used to determine the calorific value of :
Answer
A. Gaseous fuels only
58
Bomb calorimeter determines :
Answer
C. Higher calorific value of fuels at constant volume
59
Ultimate analysis of fuel means determination of :
Answer
C. Percentage of carbon, hydrogen, nitrogen, sulphur and phosphorus
60
The higher heating value of natural gas is:
|
Answer
A. 9350 Keal/Nm?
61
The oxygen % by volume in air is:
Answer
A. 21%
62
The Nitrogen % by volume in air is:
Answer
A. 79%
63
The amount of air required for complete combustion of fuel is called :
Answer
C. Stoichiometric air
64
For ideal combustion process for burning 1kg of a typical fuel containing 86% carbon, 12%
hydrogen and 2% sulphur, the theoretically required quantity of air :
Answer
D. 14.1keg
65
Free oxygen in the products of combustion is an indication of :
Answer
C. Excess air Sais
66
Orsat apparatus is used to determine :
Answer
D. Products of only dry constituents of combustion by volume
67
Which of these devices can be used to detect leaks in boilers: ~
Answer
C. Micromanometer
68
If gravimetric analysis of products of combustion is known, Air; fuel ratio is given by:
Answer
B. (C × N₂) / (0.21CO₂ + 0.33CO)
69
Volumetric analysis of sample of dry products of combustion are CO₂ = 10%, CO = 1%, O₂ = 8%, N₂ = 81%. The proportion by weight are given by:
Answer
B. 44 : 28 : 256 : 2268
70
C+0,—-CO, Therefore 1kg of carbon requires how much kg of oxygen?
Answer
B. 2.67
71
The S.I unit of length is :
Answer
C. Meter
72
Which of these is the unit of power?
Answer
C. Both
73
1 Pascal is how much N/m²?
Answer
A. 1 N/m²
74
Which of these is used to measure temperature?
Answer
D. Both
75
Mechanical equivalent of heat is related to:
Answer
B. Conservation of energy
76
The localised corrosion caused by oxygen in boilers is called :
Answer
B. Pitting
77
Which of these equipment is used for boiler water treatment?
Answer
C. Dearator
78
What is the recommended hardness of boiler feed water?
Answer
D. Less than 1 ppm
79
When the total amount of sludge under a boiler is high, which of these methods is employed
for the removal of sludge? ,
Answer
A. Coagulation
80
Which of these treatment is used for boilers which operate at low or moderate pressures?
Answer
D. Internal treatment |
158/2015 12 A
81
Largest planet :
Answer
B. Jupiter
82
South west monsoon season in India is between :
Answer
A. June to August
83
The first annual session of SNDP yogam having been held at :
Answer
D. 1904 |
84
Crips Mission arrived in the year :
Answer
C. 1942
85
Present Lok Sabha speaker :
Answer
A. Sumitra Mahagan
86
Largest river island :
Answer
D. Majuli |
87
National flower of Russia :
Answer
C. Sunflower
88
The year 1942 is marked with :
Answer
B. Punnapra-Vayalar Incident |
89
Eagle is the National Emblem of :
Answer
C. Poland
90
World Bookday is celebrated on :
Answer
B. April 23
91
Sahodara Sangham was founded by K.Ayyappan in:
Answer
D. 1917
92
Name of the discovery of Brazil :
Answer
A. Pedro Alvarez Cabral
93
Who wrote ‘The last temptation of Christ’ :
Answer
B. Nikos Kazantzaks
94
Which is a Scandinavian country?
Answer
A. Finland
95
Which district is the largest producer of Tobacco in Kerala?
Answer
C. Kasargod
96
Nobel prize of literature of 1913 given :
Answer
D. Ravindranath Tagore
97
Playing time of National Anthem:
Answer
D. 52 seconds
98
Worlds largest delta :
Answer
A. Sunderbands
99
Author of 'Freedom at MidNight' :
|
Answer
B. Larrycolins and Doming Lapiere
100
Who directed The Film 'Schindlers List'?
|
Answer
C. Steven SpielBerg
Discussion
Ask a doubt or share a tip.
No comments yet — start the discussion.