ELECTRICIAN,GROUND WATER,PRINTING,AGRICULTURE,KERALA CERAMICS SOLVED PAPER 2015

ELECTRICIAN,GROUND WATER,PRINTING,AGRICULTURE,KERALA CERAMICS

EXAM DATE:13-06-2015

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1.The melting point of aluminium is:

A.810⁰C

B.660⁰C

C.560⁰C

D.360⁰C

Ans:B

2.Specific gravity of electrolyte is measured by:

A.Lactometer

B.Pyrometer

C.Hydrometer

D.Galvanometer

Ans:C

3.Find the square root of 15376:

A.414

B.124

C.214

D.324

Ans:B

4.Which type of drawing sheet having biggest area?

A.A3

B.A2

C.A1

D.A0

Ans:D

5.What is the potential energy in a body,mass 5 kg on top of a pole 20 m high?

A.100 j

B.980 j

C.1000 j

D.9800 j

Ans:B

6.Which is the example of mandatory sign?

A.Risk of electric shock

B.Wear safety belt

C.Smoking prohibited

D.All of the above

Ans:B

7.The unit of quantity of electricity is:

A.Watt hour

B.Coulomb

C.Ampere

D.Volt

Ans:B

8.What is the value of medium resistance based on its ohmic values?

A.Above 1 ohm upto 1000 ohms

B.Above 1 ohm upto 100 K ohms

C.Above 100 K ohms

D.Below one ohm

Ans:B

9.Which tool is used to measure the size of the conductor?

A.Bevel gauge

B.Vernier caliper

C.Standard wire gauge

D.Depth gauge

Ans:C

10.In which classification of accessories,the switch will belong?

A.Holding

B.Safety

C.General

D.Controlling

Ans:D

11.What is the name of defect occurred in a cell,due to the presence of impurities on the zinc plate?

A.Polarisation

B.Sulphation

C.Buckling

D.Local action

Ans:D 12.The mass of a substance liberated from an electrolyte by one coulomb of electricity  is termed as:

A.Electrochemical equivalent

B.Quantity of electricity

C.Electric charge

D.Electrochemical expression

Ans:B

13.What is the method of charging the battery at very low rate?

A.Rectifier method

B.Constant current method

C.Trickle charge method

D.Constant voltage method

Ans:C

14.The distance between two adjacent teeth of hacksaw blades are called:

A.Pitch of the blades

B.Specification  of the blades

C.Size of the blades

D.Number of the blades

Ans:A

15.Which substance is diamagnetic?

A.Manganese

B.Nickel

C.Bismuth

D.Cobalt

Ans:C

16.Tesla is the unit of:

A.Flux density

B.Flux

C.Reluctance

D.Magnetic field strength

Ans:A

17.Which type of DC generator is used for welding generator sets?

A.Shunt generator

B.Series generator

C.Cumulative compound generator

D.Differential compound generator

Ans:D

18.How many parallel paths in simplex wave winding of a D.C.generator having 8 poles?

A.8

B.6

C.4

D.2

Ans:D

19.As per BIS the series tied winding terminals must be marked as:

A.B₁B₂

B.E₁E₂

C.D₁D2

D.F₁F2

Ans:---------

20.Which law/rule states that the magnitude of the induced e.m.f is directly proportional to the rate of change of flux linkage?

A.Lenz’s law

B.Faraday’s law of electromagnetic induction?

C.Fleming’s right hand rule

D.Faraday’s law of electrolysis

Ans: B

21.The table fan is not oscillating.The cause may be:

A.The loose guards

B.The defective speed control switch

C.The spur gear with broken teeth

D.The blades are out of balance

Ans:C

22.Which one has negative temperature co-efficient of resistance?

A.Copper

B.Nichrome

C.Aluminium

D.Mica

Ans:B

23.Which type of resistors are called as thermistors?

A.PTC resistors

B.Varistors

C.LDR

D.NTC resistors

Ans:D

24.Which one is NOT an application of electromagnet?

A.Calling bel

B.Protective relays

C.Electric iron

D.DOL starter

Ans:C

25.The magnetic term analogous to electrical term current is:
A.Reluctance

B.Flux

C.Flux density

D.m.m.f

Ans:B

26.The fire extinguisher not used for electric fire:

A.Foam type

B.Halon type
C.Carbon tetrachloride

D.Dry powder type

Ans:A

27.Six carbon-zinc cells in series have an output of:

A.6 V

B.9 V

C.12 V

D.7.5 V

Ans:B

28.A 100 Ah capacity battery should deliver a current of 10 A for approximately--------hours

A.12

B.10

C.100
D.25

Ans:B

29.A flurescent tube may burn out if the choke coil is:

A.Open circuited

B.Grounded

C.Short circuited

D.Connected to the neutral line

Ans:C

30.The starting torque of a single phase induction motor is:

A.Low

B.High

C.Very low

D.Zero

Ans:A

31.While testing a capacitor with a multimeter,the needle shows zero position indicating the capacitor is:

A.in gold condition

B.open circuited

C.short circuited

D.Leaky

Ans:C 32.The direction of rotation of a capacitor start motor can be reversed by:

A.Reversing the supply  terminal connections

B.Reversing  the connection of the auxiliary winding

C.Reversing the connection of both the main and auxiliary winding

D.Reversing the connection of either the main or the auxiliary winding

Ans:D

33.What is the synchronous speed of a six pole induction motor running on power at 60 Hz supply?

A.1200 rpm

B.1000 rpm

C.7200 rpm

D.6000 rpm

Ans:A

34.The output of an alternator is in:

A.HP

B.KVA

C.KW

D.BHP

Ans:B

35.The other name of field current in an alternator is:

A.Load current

B.Armature current

C.Exciting current

D.Induced current

Ans:C

36.A 6-pole,1200 rpm alternator will generate emf at the frequency of:

A.50 Hz

B.60 Hz

C.40 Hz

D.30 Hz

Ans:B

37.The voltage induced in the armature of an alternator will be:

A.Pulsating DC
B.Oscillating

C.DC

D.AC

Ans:D

38.In Scot connection,the teaser transformer has a tapping of------------transformer.

A.86%  of main

B.56% of main

C.50% of secondary

D.58% of secondary

Ans:A

39.The common method of cooling a power transformer is:

A.Air cooling

B.Air blast cooling

C.Oil cooling with air blast

D.Oil cooling with water forced

Ans:C

40.Three single phase transformers,each with 10 KVA rating connected  in delta.If one of the transformer is damaged and taken out,the output of the system will be:

A.20 KVA

B.17.4 KVA

C.8.66 KVA
D.10 KVA

Ans:B

41.Transformer oil is used to:

A.Cool

B.Lubricate

C.Lubricate and cool

D.Insulate and cool

Ans:D

42.Which one of the following transformer is largest in size?
A.2 KVA,600 Hz

B.2 KVA,400 Hz

C.2 KVA,200 Hz

D.2 KVA,50 Hz

Ans:D

43.Power transformers are designed to have maximum efficiency at:

A.Near full load

B.No load

C.Half load

D.More than full load

Ans:A

44.A transformer has maximum efficiency at an iron loss of 400 watts.Its copper less  will be:

A.200 W

B.300 W

C.400 W

D.800 W

Ans:C

45.When a 440/220 V transformer is connected to a 440 V DC supply:

A.The output will be zero volt

B.The output will be 220 V

C.The transformer may burn

D.The output will be less than 220 V

Ans:C

46.In a transformer,the primary and secondary induced voltages are:

A.90⁰ out of phase

B.in phase

C.180⁰ out of phase

D.In any phase difference

Ans:C

47.-------is the most suitable material for the core of a transformer

A.Cold rolled grain oriented steel

B.Hot rolled grain oriented steel

C.Cast steel

D.Carbon steel

Ans:A

48.The current drawn by a 240 DC motor of armature resistance 0.5 ohm and back emf of 220 V will be:

A.20 A

B.30 A

C.10 A

D.40 A

Ans:D

49.For wide and very sensitive speed control,the usual method is:

A.Field control

B.Armature control

C.Voltage control

D.Ward-Leonard control

Ans:D

50.The speed of a DC motor can be controlled by varying:

A.The resistance of the armature circuit

B.Its flux per pole

C.The voltage

D.All of the above

Ans:D

51.A compound motor has:

A.Two fields

B.Three fields

C.One field

D.Four fields

Ans:A

52.A 4-point starter is essential for a:

A.Compound motor with speed control above normal

B.Shunt motor with speed control below normal

C.Series motor with speed control above normal

D.Compound motor with speed control below normal

Ans:A.

53.The power output of any electrical motor is taken from the:

A.Shaft

B.Terminal box

C.Armature

D.Brushes

Ans:A

54.In DC motor three-point starter the hold ON coil is connected:

A.In series to field coil

B.In series to armature

C.In parallel with field coil

D.In parallel with armature

Ans:A

55.How many parallel paths are formed in DC motor four point starter?

A.One
B.Two

C.Three

D.Four

Ans:C

56.The inter poles are connected in:

A.Series with the armature

B.Parallel with the armature

C.Series with the field

D.Parallel with the field

Ans:A

57.The standard length of PVC wiring condult  available in the market is:

A.3 meters

B.2.5 meters

C.2 meters

D.3.5 meters

Ans:A

58.If five numbers of lamps to be installed in godown wiring,we require:

A.One SPT and five two-way switches

B.One SPT and six two-way switches

C.Two SPT and four two-way switches

D.One SPT and four two-way switches

Ans:D

59.The minimum length of pipe electrode used for earthing should not be less than:

A.3 m

B.3.5 m

C.2.5 m

D.4 m

Ans:C

60.According to IE rules,the leakage current in an installation should not exceed one-------the part of the maximum current in the installation

A.5000

B.500

C.100

D.50000

Ans:A

61.An ON LOAD tap changer is provided with:

A.Power transformer

B.Distribution transformer

C.Instrument transformer

D.Isolation transformer

Ans:A

62.The repeated closure of the circuit to start a motor from rest,producing small movements is called:

A.Starting

B.Jolting

C.Jogging

D.Flashing

Ans:----------

63.The number of contactors used in a semi-automatic star delta starter is:

A.1

B.2

C.3

D.4

Ans:C

64.The edges of the slot liner should be folded on either end to prevent them from sliding in the slots is called:

A.Cuffing

B.Wedging

C.Packing

D.Over hanging

Ans:----------

65.The periphery of the armature divided by the number of poles of the machine is called:

A.Front pitch

B.Pole pitch

C.Back pitch

D.Commutator pitch

Ans:B

66.An electromagnetic device used to detect and locate grounded, shorted and open coils in an armature

A.External growler

B.Internal growler

C.Megger

D.Multimeter

Ans:A

67.Pick up the odd one out:

A.Agitator type

B.Fuzzy logic type

C.Air power wash type

D.Saucepan type

Ans:D

68.The amount of emergent light downward is 60 to 90 %.The type of lighting system is:

A.Direct

B.Semi indirect

C.Semi direct

D.Indirect

Ans:C

69.Coupling gap reading can be taken with the help of-----------while coupling and aligning MG sets

A.Spirit level

B.Feeler gauge

C.Steel rule

D.Shims

Ans:B

70.As per Rule 51, a clear space of not less than 91.44 cm in width shall be provided:

A.Behind the switch board

B.Above the switch board

C.Below the switch board

D.In front of the switch board

Ans:D

71.The safe and proper way of removing the existing software from the computer is:

A.Removing

B.Disabling

C.Deleting

D.Uninstalling

Ans:D

72.The type code printed on the zener is BZC9V1,where’B’indicates:

A.Germanium

B.Silicon

C.Carbon

D.Boron

Ans:B

73.In MS-Word file,the short cut key used to save the document is:

A.Ctrl+A

B.Ctrl+S

C.Ctrl+V

D.Ctrl+X

Ans:B

74.The number of diodes used for a centre tapped full wave rectifier is:

A.1

B.2

C.3

D.4

Ans:B

75.Expansion of SPDT is:

A.Single Phase Double Throw

B.Single Pole  Double Throw

C.Single Phase Dual Throw

D.Single Pole Dual Throw

Ans:B

76.Open circuit test is conducted on  a transformer to determine:

A.Eddy current loss

B.Copper loss

C.Hysteresis loss

D.Core loss

Ans:D

77.One Pico farad is equal to:

A.10^-6 farad

B.10^-9 farad

C.10^-12farad

D.10^-15farad

Ans:C

78.The number of complete cycles produced in one second is called:

A.Frequency

B.Period

C.Amplitude

D.Peak value

Ans:A

79.The function of tweezer is to:

A.Grip and hold the cylindrical objects

B.Cut small diameter wires and cables

C.Hold light weight and very small components and wires

D.Remove the sheath and insulation from cables and boards

Ans:C

80.1 Joule=:

A.1 Nm

B.1 Nm²

C.1 N²m²

D.1 kgm/sec²

Ans:A

81.Kallumala agitation was led by:

A.Ayya Vaikundar

B.Ayyankali

C.Thycaud Ayya

D.Sree Narayana Guru

Ans:B

82.Ezhava Memorial was submitted under the leadership of:

A.Dr.Palpu

B.Sree Narayana Guru

C.V.T.Bhattathirippad

D.Thycaud Ayya

Ans:A

83.Who was the author of the famous work”Jathikummi”?

A.Kumaranasan

B.C.P.Ramaswamy

C.Swamy Sivayogi

D.Pandit Karuppan

Ans:D

84.----------was considered as the father of Muslim Renaissance in Kerala

A.Rahmath Ali

B.Vakkom Moulavi

C.Abdul Kadhar

D.Mohammed Iqbal

Ans:B

85.Kuriakose Elias Chavara was died on:

A.3^rd January 1871

B.3^rd February 1871

C.3^rd  November 1871

D.3^rd December 1871

Ans:A

86.Which political party won the 2015 Delhi Assembly Election?

A.CPM

B.AAP

C.INC
D.BJP

Ans:B

87.Who got Vayalar Award of 2014?

A.K.R.Chithra

B.Beena Paul
C.Sara Joseph

D.K.R.Meera

Ans:D

88.Which of the following is the Multilateral Bank operated by BRICS states?

A.Development Credit Bank

B.National Development Bank

C.New Development Bank

D.Asian Development Bank

Ans:C

89.Who was the Chief Guest of 2015 Republic Celebration in India?

A.Yingluck Shinawatra

B.Barack Obama

C.Bill Clindon

D.Shinzo abe

Ans:B

90.The first Malayali to win Oscar Award was:

A.Resul Pookutty

B.Manju Wariyar

C.A.R.Rahman

D.Mamooty

Ans:A

91.The highest peak of Himalaya:

A.Gangothri

B.Mount Everest

C.Anamudi
D.Dhaulagiri

Ans:B

92.Which state receive the heaviest rainfall in India?

A.Megalaya

B.Kerala

C.Orissa

D.Gujarat

Ans:A

93.What is the longest river in India?

A.Kaveri

B.Ganga

C.Narmada

D.Palaru

Ans:B

94.The greatest mountain range come between northern and southern India:

A.Aravalli

B.Satpura

C.Vindhya

D.Ponmudi

Ans:C

95.In the Sangam period the hilly regions were called as:

A.Mullai

B.Kurinji

C.Marutham

D.Palai

Ans:B

96.The first martyr of 1857 revolt”

A.Nana Sahib

B.Mangal Pande

C.Rani Lakshmi Bai

D.Tantya Tope

Ans:B

97.The founder of the Indian National Congress was:

A.W.C.Banarjee

B.Tilak

C.Gandhiji

D.A.O.Hume

Ans:D

98.Importance of the year 1942 is:

A.Civil Disobedience Movement

B.Non Co-operation Movement

C.Quit India Movement

D.None of these

Ans:C

99.---------------was responsible for the partition of Bengal

A.Lord Wavell

B.Lord Curzon

C.Lord Rippom

D.Lord Mountbatten

Ans:B

100.The famous Edakkal cave is situated --------district.

A.Wayanad

B.Idukki

C.Pathanamthitta

D.Alappuzha

Ans:A