LABORATORY TECHNICAL ASSISTANT-MAINTANENCE AND REPAIRS OF AUTOMOBILES,VHSE SOLVED PAPER 2015

LABORATORY TECHNICAL ASSISTANT-MAINTANENCE AND REPAIRS OF AUTOMOBILES,VHSE

EXAM DATE:20-10-2015
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1.In which of the following lubrication system lubricant oil is mixed with fuel?

A.Splash system

B.Pressure system

C.Dry sump

D.Petrol system*
Ans:D

2.Which is the following number is used to indicate ignition quality of diesel fuel?

A.Cetane*

B.Octane

C.Random

D.None of these

Ans:A

3.Which of the following is used in fuel tank to reduce surging of fuel on account of sudden brake or cornering?

A.Muffler

B.Baffle plate*

C.Drain plug

D.Rocker arm

Ans:B

4.An electrical fuel pump operates but delivers insufficient fuel.This may be due to:

A.Chocked pump filters

B.Worn out valves

C.Damaged diaphragm

D.All of the above*

Ans:D

5.The device which used to maintain speed at varying load condition:

A.Vacuum advance

B.Centrifugal advance

C.Electric advance*

D.None of these

Ans:C

6.

7.A lead acid battery is an automobile used the acid:

A.Sulphuric acid*

B.Hydrochloric acid

C.Nitric acid

D.Phosphoric acid

Ans:A

8.A four wheeler normally uses battery of:

A.10 volt

B.12 volt*

C.20 volt

D.1.5 volt

Ans:B

9.The test used to know the chemical condition of positive  and negative plate is:

A.Specific gravity test

B.Open volt test

C.High discharge test

D.Cadmium test*

Ans:D

10.The clutch does not require clamping spring and release lever:

A.Cone clutch

B.Single plate clutch

C.Diaphragm clutch*

D.Multiplate clutch

Ans:C

11.Reason for clutch drag or spin is:

A.Excessive free pedal play

B.Damaged  pressure plate

C.Cracked clutch plate

D.All of the above*

Ans:D

12.The clutch is located between the gear box and the :

A.Engine*

B.Rear axle

C.Propeller shaft

D.Differential

Ans:A

13.Which of the following gear box used double de clutching process?

A.Synchromesh gear box

B.Sliding mesh

C.Constant mesh*

D.All of the above

Ans:C

14.Increase of torque in a vehicle is obtained by:

A.Increasing speed

B.Decreasing speed*

C.Increasing Power

D.All of the above

Ans:B

15.Speed of the driving  gear(A)1500 rpm,speed of the driven gear(B)mesh wth A is 3000 rpm.What is gear ratio?

A.0*

B.0.5

C.1.5

D.4500

Ans:A

16.The type of gear box used in automatic transmission is:

A.Epicyclic gear box*

B.Constant mesh gear box

C.Sliding mesh

D.Synchromesh gear box

Ans:A

17.When the car is taking a turn the outer wheel have to travel greater distance compared to the inner wheel in the same time,the device used to adjust this is:

A.Propeller shaft

B.Slip joint

C.Differential*

D.Transfer case

Ans:C

18.The rear axles shaft supporting in which the axle shaft can be taken out or replaced without jacking up the vehicle is:

A.Semi floating axle

B.Full floating axle*

C.Three quarter axle

D.None of these

Ans:B

19.The suspension movement in which vehicle moves perpendicular the road is:

A.Bouncing*

B.Rolling

C.Pitching

D.None of these

Ans:A

20.The independent suspension system which uses only lower wishbone:

A.Wishbone type

B.Mac person strut*

C.Vertical guide

D.Single strut

Ans:B

21.Which of the following suspension system uses compressors?

A.Rigid axle

B.Independent

C.Vertical guide

D.Air suspension*

Ans:D

22.Which of the following spring used in rigid axle suspension?

A.Coil spring

B.Leaf spring*

C.Air spring

D.Torsion spring

Ans:B

23.The tilt of the vehicle wheels from the vertical:

A.Camber*

B.Castor

C.Kingpin inclination

D.Combined angle

Ans:A

24.The ratio between side force sustained to the slip angle is:

A.Cornering power*

B.Slip ratio

C.Side ratio

D.Steering ratio

Ans:A

25.The ratio of tyre section height to the tyre section width:

A.Ply rate

B.Aspect ratio*

C.Tyre ratio

D.None of these

Ans:B

26.The process of filling air in tyre is:

A.Inflation*

B.Deflation

C.Cracking

D.None of these

Ans:A

27.The type of wheel which cannot be used with a tubeless tyre:

A.Disc wheel

B.Alloy wheel

C.Wire wheel*

D.None of these

Ans:C

28.The heart of the hydraulic brake system is:

A.Whell cylinder

B.Master cylinder*
C.Adjuster

D.Brake pedal

Ans:B

29.The process of removing air from hydraulic system is:

A.Brake adjustment

B.Brake bleeding *

C.Wheel alignment

D.Brake alignment

Ans:B

30.Which of the following brake cannot stop the vehicle like a service brake?

A.Engine exhaust brake*

B.Air brake

C.Bendix hydromax brake

D.Disc brake

Ans:A

31.Full form of ABS which is used in vehicle is:

A.Absolute Braking System

B.Always Better Service

C.Anti-lock Braking System*

D.None of these

Ans:C

32.The instrument which shows the distance travelled by the vehicle is:

A.Speedometer

B.Tachometer

C.Odometer*

D.Lactometer

Ans:C

33.Air bag used in a car is :

A.Storage of air

B.Storage of oxygen

C.For protection of passenger*

D.For air brake

Ans:C

34.The tool used to finish a previously drilled hole is:

A.Grinder

B.Reamer*

C.Tap and die

D.Tube cutter

Ans:B

35.Which of the following is an external combustion engine?

A.Petrol engine

B.Diesel engine

C.Steam engine*

D.Gas engine

Ans:C

36.The process of removing exhaust gas from the engine cylinder is:

A.Scavenging*

B.Compression

C.Engine Slap

D.Scuffing

Ans:A

37.Mechanical efficiency of an engine is:

A.IHP/BHP

B.BHP/IHP*

C.BHP/FHP

D.FHP/BHP

Ans:B

38.The sound produced due to the excess clearance between piston and cylinder during cold starting:

A.Knocking

B.Piston slap*

C.Humming

D.Piston scuffing

Ans:B

39.The distance between center line of crankpin and main journal axis is:

A.Crank throw*

B.Valve clearance

C.Eccentricity

D.Normal clearance

Ans:A

40.Which of the following valve is used in automobile engine?

A.Poppet valve*

B.Rotary valve

C.Sleeve valve

D.None of these

Ans:A

41.The ratio of RP  M of crankshaft to the RPM of camshaft is:

A.1

B.2*

C.0.5

D.3

Ans:B

42.Which of the following is used to measure level of lubricating oil in the  oil sump:

A.Oil pressure gauge

B.Dipstick*

C.Warning light

D.Timing light

Ans:B

43.The amount of heat energy produced during complete combustion of 1 kg of fuel is termed as:

A.Knocking rate

B.Specific heat

C.Calorific value*

D.Sensible heat

Ans:C

44.Multi Point Fuel injection(MPFI)is used in:

A.Diesel engine

B.Petrol engine*

C.Steam engine

D.None of these

Ans:B

45.The amount of voltage required to produce spark in SI engine is termed as:

A.Medium voltage

B.Brake down voltage*

C.Standard voltage

D.Threshold voltage

Ans:B

46.To reduce emission of unburned hydrocarbon in the automobile exhaust gas combustion chamber is designed as:

A.Spherical

B.Hemispherical*

C.Conical

D.Cubical

Ans:B

47.The colour of positive plate in Lead acid batter is:

A.Chocolate brown*

B.Grey

C.White

D.Red

Ans:A

48.The device used to convert AC current in the armature coil to DC current is:

A.Yoke

B.Commutator*

C.Contact breaker

D.Ballast resistor

Ans:B

49.The instrument used to text short circuit between armature winding in starting motor or dynamo is:

A.Growler*

B.Multimeter

C.High rate discharge tester

D.Stroboscope

Ans:A

50.The volume between TDC and BDC in a single cylinder engine is:

A.Stroke volume

B.Swept volume

C.Total volume

D.Both (a) and (b)*

Ans:D

51.Total number of gears in a differential is:

A.2

B.3

C.4*

D.6

Ans:C

52.In petrol engine the unit which mix petrol and air is:

A.Carburettor*

B.Fuel pump

C.Injector

D.Governor

Ans:A

53.Spark plug is used in:

A.SI engine*

B.CI engine

C.Steam engine

D.All of the above

Ans:A

54.Which of the following factor/factors depends upon tyre life?

A.Inflation

B.Driving style/method

C.Troubles of vehicle

D.All of the above*

Ans:D

55.Tread cracking of a tyre may be due to:

A.Overloading *

B.Over inflation

C.Under inflation

D.All of the above

Ans:A

56.The cross section of connecting rod is:

A.I section*

B.L section

C.D section

D.T section

Ans:A

57.Cam shaft is not required in:

A.4 stroke petrol engine

B.4 stroke diesel engine

C.Two stroke engine*

D.None of these

Ans:C

58.To reduce the noise,engine exhaust is connected to the---------

A.Muffler*

B.Catalytic converter

C.Supercharger

D.Turbocharger

Ans:A

59.The lubrication system used in sports car is:

A.Petrol system

B.Pressure system

C.Dry sump system*

D.Splash system

Ans:C

60.The main constituent of CNG(Compressed Natural Gas)is:

A.Methane*

B.Ethane

C.Butane

D.Propane

Ans:A

61.The reason for the wide use of Aluminium alloy piston is:

A.Low weight

B.High thermal conductivity

C.Increased cooling efficiency

D.All of the above*

Ans:D

62.Working principle of flywheel in engine is:

A.Moment of inertia*

B.Pascal law

C.Venturi Principle

D.Charles law

Ans:A

63.All the gears in the differential are:

A.Spur gear

B.Helical gear

C.Bevel gear*

D.Double helical gear

Ans:C

64.A tyre is specified as P 205/75 R14.The digit 75 stands for:

A.Radius

B.Diameter

C.Aspect ratio*

D.Speed rate

Ans:C

65.Which of the following  starting drive is used in vehicle?

A.Bendix drive*

B.Torque tube drive

C.Hotchkiss drive

D.Full floating drive

Ans:A

66.In the fully charged condition the specific gravity of electrolyte at 15 degree Celsius is:

A.1.29*

B.1.11

C.1

D.2.1

Ans:A

67.A battery of 100 AH(Ampere Hour)can give:

A.10 A current for 10H

B.20 A for 5 H

C.25 A for 4 H

D.All of the above*

Ans:D

68.The type of suspension system used in two wheeler is:

A.Rigid axle

B.Mac Phersion

C.Swinging half axle

D.Telescopic shock absorber*

Ans:D

69.Which of the following battery test uses hydrometer?

A.Open volt test

B.Cadmium test

C.High discharge test

D.Specific gravity test *

Ans:D

70.Which of the following works according to Ventum principle?

A.FIP

B.Feed pump

C.Carburettor*

D.Injector

Ans:C

71.Parliament of India consists of:

A.Lok Sabha and Rajya Sabha

B.President,Vice President,Lok Sabha and Rajya Sabha

C.Attorney General,Lok Sabha and Rajya Sabha

D.President ,Lok Sabha and Rajya Sabha*

Ans:D

72.Which is the first state to presentabillontheestablishment of Lokayuktha in 1970?

A.Kerala

B.Punjab

C.Odisha*

D.Rajasthan

Ans:C

73.The idea for the inclusion of ‘Socialist’ in the preamble is prompted by:

A.Indira Gandhi*

B.Jayaprakash Narayan

C.Acharya Kripalani

D.Ram manohar Lohya

Ans:A

74.Protection of children from sexual offences’ bill passed by Lok Sabha on:
A.2013 May 22

B.2012 May 12

C.2012 May 22*

D.2013 May 12

Ans:C

75.The social reformer known as ‘Kerala Lincoln’:

A.Pandit K.P.Karuppan*

B.Ayyankali

C.Sahodaran Ayyappan

D.Pambadi John Joseph

Ans:A

76.Which pair is incorrect?

A.Yogashema Sabha-1908

B.Nair Service Society-1914

C.Sadhu Jana Paripalana Sangam-1903*

D.Vaala Samudaya Parishkarani Sabha-1910

Ans:C

77.’Prathyaksha Raksha Daiva Sabha’-The organization for dailt Christians are founded by:

A.Chavara Kuriakkose Achan

B.Poykayil Yohannan*

C.Pambadi John Joseph

D.Palakkunnath Ebraham Malpan

Ans:B

78.Who is the only Malayali social reformer mentioned in the autobiography of Mahatma Gandhi?

A.T.K.Madhavan

B.Sree Narayana Guru

C.Barister G.P.Pillai*

D.Ayyathan Gopalan

Ans:C

79.The slogan ‘Gareebhi Hatao’is related to which five year plan?

A.Vth*

B.VIth

C.VIIth

D.IVth

Ans:A

80.Who is the first to calculate the national income of India?

A.P.C.Mahalanobis

B.C.D.Deshmukh

C.Gulsarilal Nanda

D.Dadabhai Naoroji*

Ans:D

81.Who is known as Father of Malayalam Printing?

A.Herman Gundert

B.Benjamin Baily*

C.Arnose Pathiri

D.Henrik Vanreed

Ans:B

82.The first college in Kerala was started at:

A.Thiruvanathapuram

B.Thalassery

C.Kozhikode

D.Kottayam*

Ans:D

83.Which American country launched the construction of a new canal connecting Atlantic and Pacific Ocean?

A.Panama

B.Nicaragua*

C.Costarica

D.Mexico

Ans:B

84.Who became the First Indian Footballer to be conferred with the Asian Football Confederation Hall of Fame Award?

A.Baichung Bhutia*

B.I.M.Vijayan

C.Sunil Chetri

D.Sailen Manna

Ans:A

85.Name the leader of ‘Paliyam Sathyagraha’(1947-48).Who died in police action?

A.Madathil Appu

B.Koyithattil Chirukandan

C.A.G.Velayudhan*

D.Potora Kunhambu Nair

Ans:C

86.Wagon Tragedy Memorial Municipal Town hall is situated in:

A.Tirur*

B.Malappuram

C.Manjeri

D.Ponnani

Ans:A

87.The official journal of SNDP is:

A.Kerala Kaumudi

B.Mithavadhi

C.Sahodharan

D.Vivekodayam*

Ans:D

88.Which pair is incorrect?

A.Kerala Vyasan-Kodungallur Kunhikuttan Thampuran

B.Kerala Kalidasan-Kerala Varma Valiyakoyi Thampuran

C.Kerala Vathmeeki-Vallathol

D.Kerala Panini-N.Krishna Pillai*

Ans:D

89.The book’Kerala Sahithya Charithram ‘has five volumes and sixty four chapters.Who wrote this book?

A.Prof.K.M.George

B.Ullor S.Parameswara Iyer*

C.Sardar K.M.Panickar

D.Dr.M.Leelavathi

Ans:B

90.’Anakkara Vadakkathu’is a famous family in South Malabar contributed a lot to Kerala women empowerment.Find out the name of the reformer not belongs to ‘Anakkara Vadkkathu’ family

A.A.V.Kuttimalu Amma

B.Ammu Swaminathan

C.Lalitha Parbhu*

D.Captain Lakshmi

Ans:C

91.Name of the Engine which have bore is equal to stroke length:

A.Wankel Engine

B.Radial Engine

C.Square Engine*

D.Hybrid Engine

Ans:C

92.Write down correct question:

A.1HP=BHP+FHP*

B.FHP=BHP+IHP

C.BHP=1HP+FHP

D.IHP=BHP-FHP

Ans:A

93.Which of the following Cycle is used in petrol engine?

A.Diesel Cycle

B.Otto Cycle*

C.Carnot Cycle

D.Brayton Cycle

Ans:B

94.An engine has swept volume of 600 cc.If compression ratio is 8.5,determine clearance volume in cc:

A.40 cc

B.60 cc

C.80 cc*

D.100 cc

Ans:C

95.One bar is equal to(KPa-Kilo Pascal):

A.1 KPa

B.10 KPa

C.1000 KPa

D.100 KPa*

Ans:D

96.Actual power delivered at the crank shaft:

A.FHP

B.IHP

C.BHP*

D.None of these

Ans:C

97.The part which connects piston and connecting rod:

A.Crankpin

B.Pistonpin*

C.Fly wheel

D.Gasket

Ans:B

98.The exhaust valve usually starts opening:

A.at BDC

B.at TDC

C.before BDC*

D.before TDC

Ans:C

99.Valve clearance is measured by the instrument:

A.Screw gauge

B.Slip gauge

C.Vernier caliper

D.Feeler gauge*

Ans:D

100.Which of the following is used to avoid over cooling in the cooling system of the engine?

A.Pressure cap
B.Thermostat*

C.Expansion reservoir

D.Radiator

Ans:B