DRAFTSMAN GRADE II/II GRADE OVERSEER(ELECTRICAL)PWD/IRRIGATION 31/08/2016

DRAFTSMAN GRADE II/II GRADE OVERSEER(ELECTRICAL)PWD/IRRIGATION

EXAM DATE:31/08/2016
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1.Base of BJT is:

A.Lightly doped*

B.Heavily doped

C.Moderately doped

D.Not doped

Ans:A

2.Dielectric strength of air is --------kv/mm

A.2.5

B.25

C.3.2*

D.16

Ans:C

3.Relative permeability of material=

A.Flux density produced in vacuum

B.Flux density produced in material

C.Flux density production vacuum/Flux density producedin material

D.Flux density producedin material/Flux density producedin vacuum*

Ans:D

4.The tube of fluorescent lamp is filled with:

A.Mercury and Nitrogen

B.Mercury and Argon*

C.Nitrogen and Argon

D.Oxygen and Argon

Ans:B

5.Armature torque of a DC motor

A.EB la/N N-m

B.9.55 EB la/N N-m*

C.9.55 EB la/N N

D.Ebla/N N

Ans:B

6.Transformers are rated with:

A.KW

B.MW

C.KVA*

D.KVAR

Ans:C

7.Frequency of rotor current of 3 phase induction motor is:

A.Slip x Frequency of stator current*

B.Frequency of rotor current

C.Slip/Frequency of stator current

D.Frequency of stator current/slip

Ans:A

8.-----------is known as universal gate

A.AND gate

B.NAND gate*

C.OR gate

D.NOT gate

Ans:B

9.1 Kwh=

A.36 x 10²J

B.36 x 10³J

C.36 x 10⁴J

D.36 x 10⁵J*

Ans:D

10.I_E:I_B:I_C::

A.1:a:(1+a)

B.1:(I-a):a*

C.1:(1+a):a

D.1:a:(1-a)

Ans:B

11.Number of parallel path in wave winding is:

A.3

B.4

C.6

D.2*

Ans:D

12.Zener diodes are commonly used as:

A.Rectifier

B.Amplifier

C.Voltage regulator*

D.Filter

Ans:C

13.Which is secondary cell?

A.Dry cell

B.Leclanche cell

C.Voltaic cell

D.Lead acid cell*

Ans:D

14.1 nF=

A.10^-6F

B.10^-9F*

C.10⁹F

D.10⁶F

Ans:B

15.The time taken by an alternating quantity to complete one cycle:

A.Time period*

B.Frequency

C.Angular velocity

D.Time constant

Ans:A

16.Speed of dc motor is directly proportional to -------and inversely proportional to:

A.Flux,back emf

B.Current,back emf

C.Back emf,flux*

D.Back emf,voltage

Ans:C

17.If capacitor are connected in series,effective capacitance is:

A.C=C₁+C₂+C₃+-------

B.1/C=1/C₁+1/C₂+1/C₃+------*

C.C=1/C₁+1/C2+1/C₃+---

D.1/C=1/C₁+1/C₂+1/C₃+1/C₄+----

Ans:B

18.Watts=

A.VA cos f*

B.VA sin f

C.VA tan f

D.VA cot f

Ans:A

19.EMF equation of DC generator is:

Ans:-

20.Admittance is the --------of conductance and susceptance

A.Arithmetic sum

B.Arithmetic difference

C.Vector sum*

D.Reciprocal

Ans:C

21.Which has negative temperature coefficient of resistance?

A.Coppor

B.Aluminium

C.Iron

D.Carbon*

Ans:D

22.Which is class Y insulating material?

A.Mica

B.Cotton*

C.Porcelain

D.Asbestos

Ans:B

23.Charge of an electron is:

A.6.242 x 10^-18

B.6.242 x 10^-18C

C.1.602x10^-19C*

D.1.602x10^-16C

Ans:C

24.Atomic number is ,the number of:

A.Neutrons

B.Protons and neutrons

C.Valence electrons

D.Electrons*

Ans:D

25.Solder is the mixture of:

A.Tin and Lead*

B.Copper and Tin

C.Copper and Lead

D.Iron and Lead

Ans:A

26.IN 4007 is semi conductor diode.Here 1N represents:

A.Forward current

B.Voltage drop

C.One layer

D.One PN junction*

Ans:D

27.Colour code for 47 Ohm resistor with +-% tolerance:

A.Yellow-Violet-Black-Gold*

B.Yellow-Black-Violet-Gold

C.Yellow-Violet-Brown-Gold

D.Yellow-Violet-Brown-Silver

Ans:A

28.Two current carrying conductors placed side by side,experience a force of attraction:

A.When current direction of both conductors are same*

B.When current direction of both conductors are opposite

C.Independent of the direction of currents

D.Only when one conductor is carrying current

Ans:A

29.Fire caused by LPG is--------Fire:

A.Class B

B.Class A

C.Class D

D.Class C*

Ans:D

30.Which motor is used in portable drilling machine?

A.Induction motor

B.DC series motor

C.Universal motor*

D.Shaded pole motor

Ans:C

31.Negative plate of lead acid cell:

A.Carbon

B.Spongy lead*

C.Lead peroxide

D.Cadmium

Ans:B

32.Ammeter shunt is----------resistance

A.High

B.Medium

C.Low*

D.Very High

Ans:C

33.Melting point of copper:

A.2305⁰C

B.663⁰C

C.1083⁰C*

D.3075⁰C

Ans:C

34.18SWG=-------mm

A.1.22*

B.1.42

C.0.91

D.0.61

Ans:A

35.Electrolyte used in Edison cell:

A.H₂SO₄

B.Hcl

C.KOH*

D.MNO₂

Ans:C

36.CT is used for measuring:

A.Voltage

B.Frequency

C.Power factor

D.Alternating current*

Ans:D

37.Unit if reluctance:

A.Ampere Turns/Weber*

B.Weber Turns

C.Henry

D.Weber Turns/Ampere

Ans:A

38.Energy stored in inductor is:

A.W=1/4 LI²

B.W=1/2 LI²*

C.W=1/2 L²I

D.W=1/2 L²I²

Ans:B

39.What is the capacitance of a capacitor that requires 0.9 C to charge it to 30V:

A.0.003 F

B.0.3 F

C.0.03 F*

D.0.3 x10^-3F

Ans:C

40.Specific gravity of a fully charged load acid cell is approximately:

A.1.18

B.1.21*

C.1.17

D.1.16

Ans:B

41.Inductive reactance of a coil having inductance 4H:

A.796x10^-6 Ohm

B.1256 Ohm*

C.314 Ohm

D.628 Ohm

Ans:B

42.Which of the following equation is wrong?

A.P=VI

B.P=I²R

C.P=V²/R

D.P=V/R²*

Ans:D

43.Capacitive reactance=

A.X_c=2 pie FC

B.X_c=2 pie Square root of FC

C.X_c=1/4 Pie FC

D.X_C=1/2pie FC*

Ans:D

44.Admittance,Y=

A.1/Z*

B.1/X_L

C.1/X_C

D.1/R

Ans:A

45.Susceptance,b=

A.R/Z

B.X/Z²*

C.R/Z²

D.X/Z

Ans:B

46.Two Wattmeters W₁ and W₂ are connected in a 3 phase circuit to measure 1 KW load 0.5 PF.Which of the following reading will be correct?

A.W reads 500 W,W₂ reads 500 W

B.W₁ reads 1200 W,W₂ attempt to read negative value

C.W₁ reads 1000 W,W₂ reads zero*

D.W₁ reads 750 W,W₂ reads 250 W

Ans:C

47.Polarised electrolytic----Aluminium capacitors are designed to have DC working voltage in the range of-------V

A.2000-1600

B.5-500*

C.0-200

D.3-125

Ans:B

48.Time period of 240 V ac supply in India is:

A.0.02 seconds*

B.50 Hz

C.0.002 seconds

D.55 Hz

Ans:A

49.Internal diameter of pipe earthing electrode should not be less that------mm

A.28

B.76

C.38*

D.19

Ans:C

50.In PTC resistor,as the temperature increases,the resistance:

A.Increase linearly

B.Increases non linearly*

C.Decreases linearly

D.Decreases non linearly

Ans:B

51.Which is active component?

A.Capacitor

B.Diode*

C.Inductor

D.Resistor

Ans:B

52.BY 127 is a:

A.PNP transistor

B.NPN transistor

C.TRIAC

D.Semi conductor diode*

Ans:D

53.Colour of silica gel changes to ------as it absorbs moisture from air

A.White

B.Blue*

C.Pink

D.Yellow

Ans:B

54.Synchronous speed of a 3 phase,4 pole,50 Hz induction motor:

A.1500 rpm*

B.1440 rpm

C.3000 rpm

D.2880 rpm

Ans:A

55.Electric charge is equal to:

A.It*

B.I/t

C.I²/t

D.I²/t

Ans:A

56.Limiting temperature of F class insulating material:

A.225⁰C

B.105⁰C

C.120⁰C

D.155⁰C*

Ans:D

57.Non uniform distribution of variable currents is solid conductors resulting in an increase in the current density near the surface:

A.Corona

B.Skin effect*

C. Joule effect

D.Eddy current

Ans:B

58.Pick the correct one:

A.Power=VQ/t*

B.Power=VQ/t

C.Power=VIt

D.Power=VI/t

Ans:A

59.One metric HP=---------Watts

A.746
B.756

C.735.5*

D.756.5

Ans:C

60.--------helps to find out the direction of current in the conductor of a generator.

A.Cork screw rule

B.Right hand thumb rule

C.Fleming’s left hand rule

D.Fleming’s right hand rule*

Ans:D

61.When two resistors are connected in series total resistance is 8 W and when connected in parallel,equivalent resistance is 2W.Value of each resistance are:

A.5W and 3W

B.6W and 2W

C.4W and 4W*

D.7W and 1W

Ans:C

62.An MI volt meter reads—value

A.Peak

B.Average

C.Rms*

D.Peak to peak

Ans:C

63.Inductance,L=

A.L=X_L/2 pie F*

B.L=2pFX_L

C.L=FX_L/2 pie

D.L=F/2 pie X_L

Ans:A

64.One cycle is ----------electrical degrees

A.180

B.270

C.90

D.360*

Ans:D

65.RMS value =-----------x Maximum value

A.0.636

B.0.85

C.0.607

D.0.707*

Ans:D

66.Which of the following is used in ceiling fan?

A.Universal motor

B.Synchronous motor

C.Series motor

D.Induction motor*

Ans:D

67.Active power in 3 phase circuit is:

A.Square root of 3 V_LI_Lcos f*

B.3 V_LI_Lcos f

C.Square root of 3 V_phI_phcos f

D.Square root of 3 V_phI_phsin f

Ans:A

68.Unit of luminous intensity:

A.Lumen

B.Lux

C.Lumen/m²

D.Candela*

Ans:D

69.The power factor of pure resistive circuit is:

A.Zero

B.Leading

C.Lagging

D.Unity*

Ans:D

70.Illumination of a surface is inversely proportional to:

A.Luminous intensity

B.Distance from the source

C.Square of the distance from the source*

D.Total Lumen

Ans:C

71.The pitch of wave winding is:

A.Y_B-Y_F

B.Y_B

C.Y_B+Y_F*

D.Y_F

Ans:C

72.Generator efficiency is maximum when:

A.Variable loss is minimum

B.Constant loss=variable loss*

C.Constant loss is minimum

D.Costant loss is half of the variable loss

Ans:B

73.Form factor=

A.Rms value/avg value*

B.Avg.value/rms value

C.Rms value/peak value

D.Peak value/rms value

Ans:A

74.Resultant flux of 3 phase induction motor is:

A.Square root of 3/2 phi m
B.3/2 phi m*

C.3 fm

D.2 fm

Ans:B

75.Maximum number of electrons in valence shell of an atom is

A.3

B.6

C.8*

D.16

Ans:C

76.Resonant frequency of an ac series circuit is:

A.1/2 p Square root of LC*

B.1/4 p Square root of LC

C.1/4 p LC

D.1/2 p LC

Ans:A

77.Insulation resistance can be measured using:

A.Ohm-meter

B.Multimeter

C.Clampmeter

D.Megger*

Ans:D

78.Absolute permeability m₀=

A.4px10^-7H/m*

B.2px10^-7H/m

C.4px10^-1414H/m

D.2px10^-14 H/m

Ans:A

79.Two watt meter method of power measurement is suitable for:

A.Balanced load only

B.Unbalanced load

C.Both balanced and unbalanced load*

D.Delta connected load

Ans:C

80.Ward-Leonard system is used for:

A.Voltage regulation of transformer

B.Speed control of dc motor*

C.Excitation of alternator

D.Voltage regulation of alternator

Ans:B

81.The famous football player Johan Cruyff,who died on 24^th March of 2016 belonged to which country?

A.Holand

B.England

C.Brazil
D.Netherland*

Ans:D

82.In which State Bharath Heavy Electricals Limited started 600 Jaipur Thermal power plant?

A.Rajasthan

B.Telengana*

C.Gujarath

D.Tamil Nadu

Ans:B

83.Whom among the following Lok Sabha speaker wrote “Indian Parliamentary Diplomacy-Speaker’s-Perspective”?

A.Sumithra Mahajan

B.J.B.Mavlankar

C.P.A.Sangma

D.Mira Kumar*

Ans:D

84.In which state India’s First River linking Project named ‘Pattiseema Lift Irrigation Project’situated?

A.Karnataka

B.Andhra Pradesh*

C.Gujarath

D.Maharashtra

Ans:B

85.Which day is observed as ‘International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade?

A.March 10

B.March 15

C.March 20

D.March 25*

Ans:D

86.In which country Mount Everest located?

A.India

B.China

C.Bhutan

D.Nepal*

Ans:D

87.Which country contributed HORTUS MALABARICUS to the world?

A.England

B.Dutch*

C.Portugal

D.France

Ans:B

88.Which Travancore ruler came to the known as “Dharma Raja”?

A.Chithira Thirunal Balarama Varma

B.Anizhamthirunal Marthanda Varma

C.Sreemollam Thirunal Rama Varma

D.Karthika Thirunal Rama Varma*

Ans:D
89.The Metropolitan city of India nearest to the equator is:

A.Chennai*

B.Mumbai

C.Delhi

D.Calcutta

Ans:A

90.The Indian State which never share its boundary with Pakistan?

A.Rajasthan

B.Gujarat

C.Himachal Pradesh*

D.Punjab

Ans:C

91.On the banks of which river Delhi situated?

A.Narmada

B.Yamuna*

C.Ganga

D.Kosi

Ans:B

92.Who given the slogan”Do or Die”?

A.Mahatma Gandhi*

B.Balagangadhara Tilak

C.Jawaharlal Nehru

D.Raja Ram Mohan Roy

Ans:A

93.The book ‘India War of Independence’is written by:

A.S.N.Sen

B.R.C.Majumdar

C.S.B.Chaudhary

D.V.D.Savarkar*

Ans:D

94.In which year partition of Bengal occurred?

A.1907

B.1905*

C.1885

D.1916

Ans:B

95.Who among the following participated in all three Round Table Conference?

A.Madan Mohan Malaviya

B.Sardar Vallabhai Patel

C.Jawaharlal Nehru

D.B.R.Ambedkar*

Ans:D

96.Who founded ‘Samath wasumajam’?

A.Ayya Vaikundar*

B.Thycaud Ayya

C.Chattambi Swamikal

D.Dr.Palpu

Ans:A

97.Who was the founder and publisher of ‘Swadeshabhimani’?

A.Kumaranasan

B.T.K.Madhavan

C.Vakkom Moulavi*

D.Ramakrishna Pilla

Ans:C

98.Who is known as”Lincoln of Kerala”?

A.Pandit Karuppan

B.Sree Narayana Guru*

C.V.T.Bhattathiripad

D.K.Kelappan

Ans:B

99.Who called Kumaran Ashan as “Viplavathinte Sukra Nakshathram”?

A.Mannathu Padmanabhan

B.Dr.Palpu

C.Joseph Mundasseri*

D.Mahatma Gandhiji

Ans:C

100.Who wrote the work “Anandasutram”?

A.Brahmananda Yogi*

B.Chattambi Swamikal

C.Sree Narayana Guru

D.Ayyankali

Ans:A