| Post Name | TECHNICIAN GRADE II (BOILER OPERATOR) |
|---|---|
| Department | KERALA CO-OPERATIVE MILK MARKETING FEDERATION Ltd. Date of |
| Question Paper Code | 068/2017/OL |
| Category Code | 007/2017 |
| Date of Test | 8 August 2017 |
| Medium of Question | ENGLISH |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
Who is known as the "Father of New France" ?
Answer
B. Samuel de Champlain
2
Indulekha is the heroin of the famous Malayalam novel "Indulekha" written by O. Chandumenon. Who is the hero of the novel ?
Answer
C. Madhavan
3
Who is called "Praschanna Buddha" ?
Answer
A. Sankaracharya
4
Who acts as the constitutional head ?
Answer
D. President
5
The Right to Information Act introduced in
Answer
B. 2005
6
What do you mean by Artificial Ground Water - recharge ?
Answer
B. Collection of rain water from the roof top into wells
7
In which place Clive established Double Government ?
Answer
C. Bengal
8
Pick one which is not a cause of Muslim communalism
Answer
D. Govt. Policies of suppression
9
White paper is related to
Answer
A. Containing proposals for constitutional changes in India
10
To uphold and protect the sovereignty, unity and integrity of India. This comes under which category ?
Answer
C. Fundamental Duties
11
Kandathil Varghese Mappilai is associated with
Answer
B. Malayala Manorama
12
The 2nd part of the film Bahubali is named as
Answer
D. Bahubali the conclusion
13
The translation of "Abhijana Sakuntalam" by
Answer
A. Kerala Varma Valiya Koyi Thampuran
14
The Central Hindu College founded by Annie Besant later developed into
Answer
C. Benaras Hindu University
15
Who said the temple entry proclamation is the "miracle of modern times" ?
Answer
B. Gandhiji
16
The Savarna Jatha was led by
Answer
D. Mannathu Padmanabhan
17
In relation to the National Movement in Tranvancor, Action Council of the State Congress was led by
Answer
A. Accamma Cheriyan
18
Who prepaired the preamble of the Indian Constitution ?
Answer
C. Jawaharlal Nehru
19
Who became famous by his pen name "Kesari" ?
Answer
B. Vengayil Kunhiraman Nayanar
20
The Malayali memorial signed in
Answer
A. 1891
21
Good opportunity for energy savings from continuous blow down of boiler is by
Answer
A. Recovery of flash steam for use in deaerator
22
Which fuel requires the lowest amount of excess air for combustion ?
Answer
D. Natural gas
23
Which data is not required to calculate the efficiency of boiler by indirect method ?
Answer
D. Blow down rate
24
The pour point of furnace oil (in deg. C) is
Answer
B. 20
25
In which of the following equipment is stored heat used for preheating combustion air ?
Answer
C. Regenerator
26
LPG is predominantly a mixture of propane and
Answer
A. Butane
27
The unit of specific heat is
Answer
C. KCal/kg°C
28
If the pressure of saturated steam is reduced through a pressure reducing valve
Answer
B. It will get superheated
29
Radiation losses from a boiler practically
Answer
C. Are independent of its % loading
30
Drain pockets are provided in a steam line for
Answer
A. Effective removal of line condensate
31
Flash steam can be recovered from
Answer
C. Condensate at high pressure
32
The correct value of 0° C on the Kelvin scale is
Answer
A. 273.15 K
33
Light year is a unit of
Answer
B. Distance
34
Temperature sensing can be achieved by the use of
Answer
D. All of the above
35
What causes the piezoelectric effect ?
Answer
D. Pressure on a crystal
36
Which among the following is not a fire tube boiler ?
Answer
B. Babcock and Wilcox boiler
37
Which among the following is the characteristic of Cochran boiler ? i. Vertical, multi-tube boiler. ii. Used for small capacity steam generation. iii. Water tube boiler.
Answer
C. i and ii are true
38
What is the main requirement of locomotive boiler ?
Answer
D. Produces steam at very high rate
39
What is the operating pressure range of a Babcock and Wilcox boiler?
Answer
A. 11.5 - 17.5 bar
40
Which among the following biolers have minimum draught loss ?
Answer
C. Babcock and Wilcox boiler
41
Which boiler is used in ships ?
Answer
C. Scotch-marine boiler
42
What is the rating of Fluidised Bed Boilers (FBB) ?
Answer
B. 150 bar and 400° C
43
Where among the following is Waste Heat Recovery boiler is used ? i. Copper smelting industry. ii. Steel mills. iii. Pulp and paper. iv. Refineries.
Answer
D. i, ii, iii and iv
44
The material used to control SOx in the FBC boiler is
Answer
D. Limestone
45
In a glass tube type water indicator for a boiler, one end of the tube is connected to water space and the other end is connected to
Answer
A. Steam space
46
Select a device which is not a boiler mountings ?
Answer
C. Economiser
47
State the location of safety valve in a boiler
Answer
A. Top of boiler shell
48
Where is High-steam low water safety valve used ?
Answer
B. Lancashire boiler
49
Which among the following pressure measuring instrument is used as a pressure gauge in boiler ?
Answer
C. Bourdon-tube
50
What is the function of fusible plug ?
Answer
D. Put-off fire in furnace, as water level fall
51
What is the function of boiler accessories ?
Answer
C. For increasing overall efficiency of boiler
52
Which among the following boiler accessories preheats boiler feed water ?
Answer
B. Economiser
53
Where is air preheater placed ?
Answer
A. After the economiser
54
What is/are the advantage/s of super heater ? i. It increases specific steam consumption of engines and turbines. ii. It eliminates the erosion of the turbine blades. iii. It reduces condensation losses in pipes and engine cylinder. iv. Efficiency of steam plant is higher.
Answer
D. i, ii, iii and iv
55
What are the functions of blow-off cock ? i. Empty boiler for cleaning and maintenance purpose. ii. Supply water to the boiler high pressure continuously. iii. Prevent the back-flow of water from boiler to pump. iv. Discharge mud and sediments accumulated at the bottom of the boiler.
Answer
C. i and iv
56
Which of the following is the best way to assess boiler losses ?
Answer
B. Indirect efficiency evaluation
57
A boiler trial indicated 2% O2 at boiler exit and 7% O2 at stack. The in-leak air quanity between these two measurement is
Answer
C. 40%
58
Enthalpy of evaporation of steam will be higher at
Answer
A. 2 kg/cm²
59
The element that does not contribute to heating value during combustion process is
Answer
D. Nitrogen
60
Which of the following is not one of the 3 T's of combustion ?
Answer
D. Tertiary
61
Which of the following is not required in the boiler efficiency evaluation by direct method ?
Answer
C. Oxygen % in the flue gas
62
The dry saturated steam when throttled to a lower pressure will
Answer
B. Become superheated
63
Velocity of steam in a pipe does strongly depend on
Answer
B. Specific volume of steam
64
Latent heat of steam at the critical point is
Answer
A. Zero
65
Furnace oil contains 84% carbon by weight. How many kg of CO₂ does complete combustion of 1 kg of furnace oil generate?
Answer
D. 3.1
66
Which fuel releases the most energy per kg on complete combustion ?
Answer
C. Hydrogen
67
How many kg of CO₂ are produced in complete combustion of 16 kg of Methane?
Answer
B. 44
68
In flue gas the theoretical CO₂ is 15.5% and measured CO₂ is 11% by volume. The percentage of excess air will be
Answer
A. 40.90%
69
To drain condensate from main steam line, the following type of trap is a suitable trap
Answer
B. Bimetallic
70
With increase in the percentage of excess air for combustion of coal, percentage of CO₂ in flue gas.
Answer
A. Decreases
71
The minimum capacity of any closed vessel which generates steam under pressure as per Indian Boilers Regulation Act is
Answer
D. 22.75 litres
72
If pressure of saturated steam increases then
Answer
A. Enthalpy of steam goes up
73
Water treatment for steam boilers is generally required to
Answer
B. Prevent formation of scales
74
The TDS level in boiler water for boiler blow down, is measured through
Answer
C. Electrical conductivity of water
75
The heat which is required to change the phase from water at 100° C to saturated steam at 100° C at atm. pressure is
Answer
B. Latent heat
76
The equipment having the highest efficiency in case of thermal power plant is
Answer
C. Generator
77
Excess air can be derived by mesuring the % of _____________ in flue gases.
Answer
B. O₂
78
The heat loss dependant on chemical characteristics of liquid fuel is
Answer
D. Hydrogen loss
79
What type of steam is used for electric power generation in thermal power plants ?
Answer
A. High pressure with superheat
80
High percentage of carbon monoxide presence in the flue gas of boiler is an indicator of
Answer
D. Low excess air
81
Reverse osmosis for water treatment involves
Answer
B. Removal of total salts
82
When 100 kg of fuel with 60% carbon is burnt with theoretical air, the mass of CO₂ released is
Answer
C. 220 kg
83
Reduction of steam pressure in a process heating application will
Answer
D. All of the above
84
When pure hydrogen is burned, with theoretical air, the volume percentage of nitrogen in flue gas on dry basis will be ?
Answer
A. 100%
85
Which of the following is not true of steam ?
Answer
B. Low heat transfer coefficient
86
The draught produced by the chimney is due to the
Answer
A. Density difference between the column of hot gases inside the chimney and the cold air outside
87
The efficiency of the chimney is directly proportional to the
Answer
A. Height of the chimney
88
The theoretical available draught at about __________ percentage of total static draught calculated.
Answer
D. 80
89
The function of a chimney in forced draught is
Answer
B. To discharge gases high in to the atmosphere
90
Induced draught is used when
Answer
C. An economiser and air preheater are used
91
Which is not true in the case of a steam jet draught ?
Answer
D. Maintenance cost is very high
92
The efficiency of artificial draught is nearly
Answer
A. 7%
93
The efficiency of the chimney draught is hardly
Answer
D. 1%
94
The fuel burning capacity of the grate mechanical draught in comparison with natural draught is
Answer
B. High
95
Which of the following statement is true as for as natural draught is cencerned ?
Answer
C. The running and maintenance cost is practically nil
96
Which of the following fuel has maximum calorific value ?
Answer
C. Hydrogen
97
What is the use of Orsat Apparatus ?
Answer
A. To do volumetric analysis of dry flue gas
98
What is the higher calorific value of Natural Gas in (KJ/Cub.M) ?
Answer
D. 37000
99
Water flow through pipe is measured by
Answer
B. Pitot Tube
100
Reverse osmosis for water treatment involves
Answer
A. Removal of total salts
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