## Kerala PSC Previous Years Question Paper & Answer

Title : Technician Grade-II (Boiler Operator) - Kerala Co-operative Milk Marketing Federation Ltd
Question Code : A

Page:4

Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Technician Grade-II (Boiler Operator) - Kerala Co-operative Milk Marketing Federation Ltd ' And exam conducted in the year 2022. And Question paper code was '057/2022'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.

page: 4 out of 16
Excerpt of Question Code: 057/2022

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Triple point temperature and pressure for water are
(A) 4°C and 101.325 kPa (8) 0°C and 101.325 kPa
(©) 0.01°C and 0.6108 kPa (D) 0°C and 0.6108 kPa

Specific volume of wet steam with dryness fraction x is

(A) xv, (8) ×۷, (C) xv, (D) x,v,
Steam coming out of the whistle of pressure cooker is

(A) Ideal gas (B) Superheated steam

(C) Dry saturated steam (D) Wet steam

The properties of water and steam become identical at
(A) 10*Pa (8) 2122 x 107 Pa
(©) 2122 x 10568 (D) 10° Pa

Calculate the dryness fraction of steam which has 1 kg of water in suspension with
49 kg of steam

(A) 0.98 (B) 0.02 (91 (D) 1.02

Specific volume of water when heated at 273.15 K
(A) First increases and then decreases (B) Increases steadily
(C) First decreases and then increases (D) Decreases steadily

Heat of superheated steam is given by

(A) hop =h,+ hg + ‏یا‎ log, (Th, 11) (6) hop =h,+ hg

(C) ‏و‎ =h,+x hg (೧) h, +x hg + ‏یا‎ log, (Te) / 273)
With increase in pressure the enthalpy of dry saturated steam

(A) Increases (B) First decreases then increases
(C) First increases then decreases (D) Decreases

Superheating of steam done at constant

(A) Enthalpy (B) Volume (C) Temperature (D) Pressure

Nothing in this the Boilers Act 1923 shall apply to
(A) in any vessel propelled wholly or in part by the agency of steam

(B) appertaining to a sterilizer disinfector used in hospitals or nursing homes, if the
boiler does not exceed one hundred liters in capacity

(C) locomotive boilers belonging to or under the control of the railways
(D) all of the above

0957/2022