OPERATOR - FOAM MATTINGS INDIA LIMITED kerala psc previous question paper
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36/2014
Maximum : 100 marks
Time : 1 hour and 15 minutes

1.For cutting a solid brass rod the most suitable pitch of the hacksaw blade is :
(A)1.4mm
(B) 1 mm
(C )1.8 mm
(D) 0.8 mm

2.The correct proportion for servo cut ‘S' in water for preparing soluble oil is with a concentration of:
(A)20 %
(B)50 %
(C ) 0.5 %
(D)5 %

3.The helical angle of twist drill determines the : 
(A) Lip angle 
(B) Rake angle
(C ) Chew angle
(D) Cutting angle

4.The term surface finish refers to the :
(A) Heat treatment given on the surface 
(B) Shining of a machined surface
(C ) Type of coating given on a surface 
(D) Roughness or smoothness of a surface

5.In the letter drill series, the size of the drill 'A' is equal to :
(A)5 mm
(B)13 mm
(C )5.944 mm
(D)6.08 mm

6.A chemical compound of carbon with iron is called :
(A)Pearlitc
(B)Cementite
(C )Austenite
(D)Ferrite

7.If the main electric supply is not available, we can do arc welding with :
(A) Transformer set 
(B) Rectifier set
(C ) Engine generator set
(D) Motor generator set

8.The tail stock is offset by :
(A) Body of t he tailstock 
(B) Spindle of the tailstock
(C ) Base of the tailstock
(D) Whole tailstock as a unit

9. In Lathe machine the follower steady has :
(A) 2 pads
(B)3 pads
(C ) 4 pads
(D)No pads

10.The pattern on the work surface caused by the movement of the cutting tool is called :
(A) Roughness
(B)Waviness
(C ) Roughness spacing
(D)Surface texture

11.Sine bar is made of:
(A) Nickel steel
(B)High speed steel
(C ) Stabilized chromium steel
(D)High carbon steel

12.The abrasive used for honing of non-ferrous metal is
(A) Diamond
(B)Silicon carbide
(C ) Boron carbide
(D)Aluminium oxide

13.The sensitiveness of spirit level depends upon the :
(A) Curvature of glass tube
(B)Length of glass tube
(C ) Size of the bubble
(D)Type of liquid

14.Application of a load for a specified period of TIME onan identation tool is used in the
(A) Vicker hardness test
(B)Rockwell hardness test
(C ) Shore test
(D)Brinnel hardness test

15.The instrument used to measure high temperature infurnace:
(A) Pyrometer
(B)Thermometer
(C ) Calorimeter
(D)Barometer

16.The purpose of normalizing is to :
(A) Soften the metal
(B)Increase the toughness
(C ) Refine the structure
(D)Harden the surface

17.Small hole gauges are used to measure holes and slots
(A) Below 12.7 mm
(B)Below 10 mm
(C ) Below 20 mm
(D)Below 20.7 mm

18. A drilling machine used by a carpenter for cabinet making is a :
(A) Ratchet drilling machine
(B)Radial drilling machine
(C ) Sensitive drilling machine
(D)Breast drilling machine

19.The reamer teeth are unevenly spaced because :
(A) Easy to manufacture
(B)Reduce chattering
(C ) Help to cut metal gradually
(D)To remove the reamer easily

20.Tab washers are used for :
(A) Preventing vibration
(B)Locking the nuts
(C ) Self Locking
(D)Fastening structural fabrication work

21.Cells are connected in parallel to :
(A) Increase the voltage output
(B)Increase the internal resistance
(C ) Decrease the current capacity
(D)Increase the current capacity

22.A material that is slightly repelled by a magnet is called:
(A) Magnetic
(B)Para magnetic
(C ) Diamagnetic
(D)Ferro magnetic

23.The Reactive Power can he calculated by using the formula :
(A) KVA x cos 
(B)KW x cos 
(C ) ‘ KW x sin 
(D)KVA x sin 

24.The metal used for the control spring in an electrical instrument is :
(A) Steel
(B)Nichrome
(C ) Hard-drawn copper
(D)Phosphor-bronze

25.An instrument using gravity control will read correctly if used in:
(A) the vertical position only
(B)the horizontal position only
(C ) an inclined position only
(D)any position

26. Calculate the unknown resistance (Rx) in a wheatstone bridge from the following data P = 10 ohms, Q -100 ohms, S - 600 ohms. The unknown resistance is :
(A) 6000 ohms
(B) 600 ohms
(C ) 60 ohms
(D) 6 ohms

27. Sweep of ceiling fun refers to :
(A)radius of circle formed by its rotation
(B)double the length of the blade
(C )the distance from the centre of motor to tip of blade
(D)double the distance from centre of motor totip of blade

28. Which of the electrical instruments have to measurement?beconnected in the same
(A)frequency meter and P.F. meter
(B)voltmeter and P.F. meter
(C )voltmeter and frequency meter
(D)wattmeter and voltmeter

29. Capacitance is not affected by :
(A)plate area
(B)distance between plates
(C )di-electric material
(D)frequency

30.The resistance of an aluminium wire of a given length and diameter when compared with that of copper wire is :
(A)same in the case of small diameter wires only
(B)more irrespective of the sizes taken
(C )less irrespective of the sizes taken
(D)equal for certain specified length and diameter

31.A choke coil of an operating fluorescent lamp is short circuited. What is the consequence?
(A)the lamp becomes brighter
(B)the lamp becomes less bright
(C )the current becomes so large that it damages Che tube
(D)the short circuit is noticed only after the lamp is switched on again

32.The unit of inductance is henry and the unit of inductive reactance is :
(A)henry
(B)henrypermetre
(C )ohms
(D)ohmsperhenry

33.A double capacitor motor of 0.5 kW when connected to 240 V 50 Hz mains at power factor 0.8 takes a full load current of:
(A)1.8 A
(B)2.0 A
(C )2.3 A
(D)2.6 A

34.Which type of fire extinguisher is to be used on electrical equipment or installation under fire?
(A)foam type
(B)halon type
(C )gas cartridge waterfilled type
(D)stored pressure water filled type

85. What is the type of winding wire you would select for rewinding the armature of a mixer/liquidizer motor?
(A)single silk covered copper wire
(B)single cotton covered copper wire .
(C )super enameled copper wire
(D)double silk covered winding wire

36.Current drawn from the supply by a permanent capacitor motor will be :
(A)lagging the voltage less than 90°
(B)lagging the voltage by 90°
(C )leading the voltage by 90°
(D)in-phase with the voltage

37.Which one of the following is an active component in an electric circuit?
(A)inductor
(B)capacitor
(C )resistor
(D)diode

38.What is the type of supply on which a universal motor can work?
(A)A.C. supply only
(B)D.C. supply only
(C )both on A.C. and D.C.supply
(D)only on rectified D.C. supply

39.You are repairing a pump that lifts too loss water than earlier. What could be the probable reason for this fault?
(A)level of water in pump is too high 
(B)impeller damaged
(C )pump is running in reverse direction
(D)motor running fast due to higher frequency

40.As a general rule before connecting the meters to the circuit, we should see whether the pointer is at zero or not. The rule is not applicable in case of:
(A)Multimeter in voltage range
(B)Watt meter
(C )Milli-ammeter
(D)Megger

41.Traps are classified according to their :
(A)Depth of water
(B)Shape and use
(C )Material
(D)Water seal

42. How many numbers of tapes containing in a hand tap set:
(A)Three
(B)Two
(C ) One
(D)Four

43.Which tool is used to hold larger diameter pipes?
(A) Pipe vice
(B)Leg vice
(C ) Hand vice
(D)Chain pipe vice

44.Which device is used to burning the refuse :
(A) Incinerator
(B)Kiln
(C ) Humidifier
(D)Furnace

45.is practically the only flux used for brazing:
(A) Zinc chloride
(B)Ammonium chloride
(C ) Borax
(D)Tallow

46.What happens to socket end in expansion joint when pipe contracts?
(A) Moves forward
(B)Moves backwards
(C ) No movement
(D)Breaks down

47.Which joint is used for temporary pipe line :
(A) Screwed joint
(B)Wiped joint
(C ) Collar joints
(D)Flanged joints

48.Cast Iron detachable joints are used to join :
(A) Cast iron pipes
(B)Concrete pipes
(C ) AC pressure pipes
(D) pipes

49.Which device is used for tapping water from main pipe line for fire fighting purpose
(A) Hydrants
(B)Sluice valve
(C ) Scour valve
(D)Blow off valve

50.Which type water treatment process is used for removing suspended impurities like sand etc:
(A) Screening
(B)Coagulation
(C ) Filtration
(D)Plain sedimentation

51.Bib cock spindle continuously slipping when the tap is turned and tap does not shut off: 
(A) Spindle thread worn out
(B) Spindle bent
(C ) Stuffing box packing is dry
(D) Valve loose on the spindle

52.Which fitting is used to supply stream of water from bottom sections of bowl in bidet?
(A)Ferrule
(B)Angle cock
(C )Jet
(D)Fountain

53.Sump is a underground structure which is used to :
(A)Store sewage
(B)Collecting effluents
(C )Collecting waste water
(D)Store water

54.The lowermost level or surface of a sewer is know'n as :
(A)Benching
(B)Invert
(C )Spigot
(D)Ferrule

55.----------is used to prevent earth sliding during trench excavation :
(A)Timbering & shoring
(B)Strut
(C )Ledger
(D)Platform

56.What type of flux is used for soldering copper sheets, brass sheets and tin plates?
(A)Hydrochloric acid
(B)Zinc chloride
(C )Ammonium chloride
(D)Resin

57.What type of chisel is used for paring and finishing joints?
(A) Firmer chisel
(B)Bevel-edge
(C ) Paring chisel
(D)Mortise chisel

58.What is used for disposing the effluent of septic tank :
(A) Cesspool 
(B)Leach pit
(C ) Soak pit
(D)Manhole

59.Which filter is used in small industrial plants?
(A) Slow sand filter
(B)Rapid sand filter
(C ) Sluice filter
(D)Pressure filter

60. What tool is used to cut any diameter of pipe :
(A) Pipe cutter
(B)Multi-wheel chain pipe cutter
(C ) Plumbers saw
(D)Hack saw

61.Unit of power is :
(A) Newton
(B)Second
(C ) Joule
(D)Watt

62.One Newton is equal to:
(A) 102 dynes
(B)103 dynes
(C ) 105 dynes
(D)104 dynes

63.Surface area of sphere is :
(A)1/3
(B)4 3 — 7tr 3
(C ) 2/3r3
(D)4 r2

64.The resultant R of two forces P and Q acting at anangle 0 to each other is given equation:
(A) R1-Ps+QJ-2PQcostf
(B)R2 =P2 -Q2 + PQcos θ
(C ) R3 = PJ-Q3+2PQcosθ
(D)R2=P2+Q2-PQcos0

65.The product of 1 — x — is equal to:
(A)$ 2 '
(B)3 8
(C ) 7
(D)2 1/4 4

66.10 side polygons are called :
(A) Decagon
(B)Octagon
(C ) Pentagon
(D)Hexagon

67.The efficiency of first system of pulley is :
(A) x 100
(B)——— xlOO2nxp2xp 
(C ) xl00 23 x pW
(D)2xPxl00

68.√5√
(A) 1.236
(B)22,36
(C ) 0.236
(D)2.236

69.The value of 0.8 + 0.008 < 0.08 is :
(A) .888
(B)1.888
(C ) 0.888
(D)8.88

70.The value of Sin (A + R) is equal to :
(A) Sin A Cos B-Cos A Sin B
(B)Sin A Cos B + Cos A Sin B
(C ) Cos A Cos B + Sin A Sin B
(D)Cos A Sin B- Sin A Cos B

71.Annealing is done :
(A) To harden the steel
(B)To normalize grains in the steel
(C ) To soften steel for machining
(D)To toughen the steel

72.The perimeter of a rectangle having sides ' x'and *y‘ is:
(A) 2ry
(B)2.y + 2y
(C ) x2+y2
(D)x + y

73.Area of the scalene t riangle is :
(A) -1 ^
(B)— 4 7T r2h 3
(C ) yjs (s-a)(s-6)(s-c)
(D)V3 o2 4

74.Galena is the ore of:
(A) Tin
(B)Lead
(C ) Copper
(D)Chromium

75.6 + 3 by 1 = :
(A) 4
(B)0.5
(C ) 2.5
(D)8
 
76. The Fahrenheit scale is divided into:
(A) 180 equal parts
(B)100 equal parts
(C ) 80 equal parts
(D)360 equal parts

77.Dynamic friction is always :
(A) Less than limiting friction
(B)More than static friction
(C ) More than limiting friction
(D)None of the above

78.Latent heat of vaporization of water at 100°c is :
(A) 9720 cal/g
(B)80 cal/g
(C ) 1440 cal/g
(D)540 cal/g

79.1 ,3 1 - , — + 1— = —+ jc find x :
2 4 8
(A)
(B)5 1
(C ) |
(D)1

80.The moment about a point in its line of action is:
(A) 1
(B)
(C ) -1
(D)None of these

81.Who among the following has started the Public Work Department in India in 1848?
(A) Lord William Bentick
(B)Lord Dalhousie
(C ) Lord Wellesley
(D)Lord Cornwallis

82.Who called Ayyankali as ‘Pulaya Raja’?
(A) Jawaharlal Nehru
(B)Sree Narayana Guru
(C ) K. Kelappan
(D)Mahatma Gandhi

83.Who was popularly known as ‘Superintendent Ayya?
(A) Thycaud Ayya Gurukkal
(B)Ayyankali
(C ) Vakkom Moulavi
(D)Ayya Vaikuntar

84.Who led the Revolt of 1857 tit Kanpur?
(A) Begam Hazrath Mahal
(B)Nana Saheb
(C ) Tantia Tope
(D)Rani Lakshmi Bai

85.Mannathu Padlmanabhan’s Autobiography?
(A) Ente Jeevitha Sumarangal
(B)Njan
(C ) Aathmakatha
(D)Ente Kathoppuka

86.Who among the following was thrice elected asPresident of Indian National Congress?
(A) Surendranath Banerji
(B)Gopala Krishna Gokhalc
(C ) Sir. C. Sankaran Nair
(D)Dadabai Naoroji

87.All India Trade Union Congress formed at:
(A) Lucknow in 1918
(B)Delhi in 1919
(C ) Mumbai in 1920
(D)Kanpur in 1921

88.Temple entry proclamation in Travancore was issued in :
(A) 12 Nov 1936
(B)12 Nov 1930
(C ) 12 Nov 1931
(D)12 Oct 1936

89.Who was elected as the President of Ail India Khilafath Conference met at Delhi in 1919?
(A) Nehru
(B)Mohammed Ali
(C ) Muhammed Ali Jinna
(D)Shaukath Ali

90.Yachana Yathra was led by :
(A) M. Padhmanabhan
(B)Kumaranasan
(C ) Sahodharan Ayyappan
(D)V.T. Bhattathirippad

91.Who was the author of the famous work Jathikummi!?
(A) K. P. Karuppan
(B)Vaikunda Swamikal
(C ) Chattambi Swamikal
(D)Vayalar ram a Varma

92.Darsanamala was written by ;
(A) Ayyankali
(B)Sree Narayana Guru
(C ) Chavra Kuriakose Eliyas
(D)Dr. Palpu

93. Who among the following was not a member of the Cabinet Mission?
(A) Sir Stafford Cripps 
(B) A.V. Alexander
(C ) Radcliffc
(D) Pathick Lawrence

94. Founder of the 'Forward Block’?
(A) Balagangadhara Thilak 
(B) Annie Besant
(C ) Lalalajpath Rai
(D) Subash Chandra Bose

95.Moksha Pradeepam was written by:
(A) Vallathol Narayana Menon 
(B) Brahmananda Swami Sivayogi 
(C ) Sahodaran Ayyappan
(D) R. Sankar

96.Samathwa Samajam was formed by :
(A) Kumara Guru
(B) Vaikunda Swamikal 
(C ) Swami Vivekanandan
(D) V. T. Bhattathirippad

97.Who was nicknamed as ‘Vidhyadirajan’:
(A) Pandit Karuppan 
(B) Mannathu Padhmanabhan 
(C ) Chattambhi Swamikal
(D) Vagbhatanda

98.The slogan ‘India for Indians’ was raised by :
(A) Raja Ham Mohan Roy
(B) Bhagat Singh
(C ) Swami Dayananda Saraswathy
(D) Bala Gangadara Thilak

99.Name the News Paper owned by Gandhiji in South Africa :
(A) Indian Opinion 
(B) The Hindu 
(C ) Common Wheel
(D) New India

100.Who among the following were the official Congress negotiators with the Cripps Mission?
(A)Gandhiji and Sardar Vallabai patel
(B)J. B. Kripalani and Uajagopalachari
(C )Jawaharlal Nehru and Maulana Adbul Kalam Azad
(D)Dr. Rajendra Prasad and Subash Chandra Bose
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