TRADESMAN - AUTOMOBILE MECHANIC - TECHNICAL EDUCATION.pdf (Size: 1.42 MB / Downloads: 1)

175/2016
Maximum: 100 marks
Time : 1 hour and 15 minutes

1.During the compression stroke of a four stroke diesel engine, the piston compresses :
(A)Air fuel mixture (B)Atomised diesel
(C )Diesel Vapour (D)Air 

2.The inventor of two stroke engine is :
(A)Dugald Clark
(B)Rudolf diesel
(C )James Watt
(D)Nicolaus A Otto

3.Theoritically during expansion process in a four stroke engine :
(A)inlet valve opens and exhaust valve closes
(B)Inlet valve closes and exhaust valve opens
(C )Both valve remains closed
(D)Both valve remains opened

4.The nominal volume of cylinder when piston is at TDC is called :
(A)Stroke volumet
(B) Swept volume 
(C )Clearence volume
(D)Suction volume

5.Which of the following engine can operate at higher speed?
(A)Square engine
(B)Over square engine
(C )Under square engine
(D)Steam engine

6.The process of flushing out the products of combustion from the engine cylinder by fresh charge is known as :
(A)Turbo charging
(B)Super charging
(C )Scavenging
(D)None of the above

7.The injection pressure in CRD1 system is upto :
(A)180 bar % 
(B)1080 bar
(C )18000 bar.
(D)1800 bar

8.When the piston of a two stroke. Single cylinder engine move from BDC to TDC?
(A)transfer port open and intake port closes
(B)exhaust port open and transfer port closes
(C )exhaust port and transfer port opens
(D)none of these

9.The number of Crankshaft for opposed piston engine is :
(A)one 
(B)two
(C ) three
(D) four

10.The ratio of Brake thermal efficiency to indicated thermal efficiency is known as :
(A)Mechanical efficiency'
(B)Relative efficiency .
(C )Air standard efficiency
(D)Calorific value efficiency

11.Chemically correct air fuel mixture ratio for SI engine is around :
(A)15:1.
(B) 9:1
(C )6:1.
(D)12:1

12.In Otto cycle, the addition of heat takes place at:
(A)Constant pressure
(B)Constant volume
(C )Partially at constant pressure
(D)Any of the above

13.Which of the following is true for a two stroke engine?
(A)fuel efficiency is more than four stroke engine of same size
(B)higher oil consumption
(C )used for two wheelers only
(D)eco friendly

14.Which type of nozzle can be used for facilitating pilot injection before the main injection?
(A)Single hole nozzle
(B)Multi hole nozzle
(C )Pintle nozzle
(D)Pmtaux nozzle

15.At the ventury throat of the Carburettor the velocity of air is :
(A) Maximum. 
(B) Decreases
(C ) Increases
(D) Remains same as before

16.The condition at which the engine operates at no load and with nearly closed throttle is known as:
(A) Dieseling 
(C ) Idling
(B)Cruising
(D) None of the above

17.The reference fuels used for comparing the anti knock value of SI engine fuel is :
(A)Benzene and tetraethyl lead
(B)Iso octane and normal heptane
(C )Normal cetane and alpha methyl naphathalene 
(D) Benzene and iso octane

18.Releasing of clutch pedal causes :
(A)Load on release finger
(B)* The compression of pressure spring
(C )Pressure plate move away from clutch disc
(D)Pressure plate move towards clutch disc

19.Clutch shaft is also known as :
(A) Transmission input shaft
(B) Counter shaft 
(C ) Lay shaft
(D) Main shaft

20.Throw out bearing is used to :
(A) reduce friction on clutch disc 
(B) engage the clutch
(C ) disengage the clutch.
(D) none of the above

21.Excess clutch free pedal play causes :
(A) Clutch slipping (C ) Wear of release bearing
(B) Difficulty in gear shifting (D) Wear of clutch disc

22.Which of the following is not a function of final drive’of heavy vehicle?
(A) final speed reduction
(B) power transmission
(C ) reduction of torque
(D) none of the above

23.Which of the following is not an advantage of overdrive?
(A)Fuel economy -
(B)Increase of torque
(C )Reduced engine wear
(D)High vehicle speed at low engine speed

24.The torque is measured in :.*
(A) N-m
(B) Nm/Second
(C ) N/m^
(D) N/m2

25.The part of synchromesh gear box which is splined to the transmission output shaft is : 
(A) Synchroniser sleeve
(B) Synchroniser ring
(C ) Mainshaft gear
(D) Synchroniser hub 

26.Idler gear is used to engage : 
(A) First gear 
(C ) Reverse gear
(B)Synchroniser ring 
(D) Top gear


27.The tendancy of front wheel drive cars withunequal length of half shaft to pull to oneside during acceleration is known as :
(A)Torque steer
(B)Self steer
(C )Power steer
(D)None of the above

28.Toraion bar is also known as :
(A) Stabilizer rod     (C ) Trailing rod
(B)Anti roll bar (D)Radius rod






29.In Macpherson type suspension system shock absorber is mounted on :
(A) Lower whish bone
(B) Upper whish bone
(C )Strut
(D) .Spring

30.Leaf springs are connected to frame through shackles for-:
(A) reduce friction
(B) avoid breaking of spring
(C )avoid rolling of vehicle
(D) none of the above

31.Torsion bar is attatched to:
(A) Lower arm
(B) Upper arm
(C )Shock absorber
(D)Steeringknuckle

32.Exhaust gas recirculation system is chiefly means to reduce the emission of:
(A)CO
(B)CO2
(C )NOx
(D)S04

33.Which of the following is not an effect of increased amount of exhaust gas recirculation?
(A)engine brake powerdecreases
(B)specific fuel consumption decreases
(C )brake specific fuel consumption increases
(D)none of the above

34. The catalyst used for the reduction of NOx in three way catalytic converter is :
(A) Platinum
(B)Palladium
(C ) Rodium
(D)All of the above

35.The speed of distributor cam is:.
(A) same as engine speed
(B)half of engine speed
(C ) one fourth of camshaft speed
(D)none of the above 

36.The dwell angle for a four cylinder engine is inthe range of:
(A)48° to 52°
(B)55° to 70°
(C )36° to 42°
(D)10° to 32°

37.The condensor in ignition system is mounted :
(A) On ignition coil
(B)On distributor cap
(C ) Outside the distributor
(D)Inside the distributor

38.The secondary terminal of Ignition coil is connected to %:
(A) Ameter.
(B)Distributor cap
(C ) Spark plug
(D) BatteryBattery

39.Which of the following unit is used to express the capacity of condensor?
(A) tesla
(B) webberwebber
(C ) candela
(D) micro faradsmicro farads

40. The specific gravity of electrolyte can be checked with :
(A) hygrometer
(B)voltmeter
(C ) multimeter
(D)hydrometer

41. Open circuit voltage of a 12V lead acid battery infully charged condition is:
(A) 2 V
(B)2.5 V
(C ) 12.6 V
(D)14V

42. The voltage of each cell of alkaline battery is : 
(A) 1.2 V
(B) 2.2 V2.2 V
(C ) 6.2 V 
(D) None of the above

43.The speed of generator at which its output voltage just rises above the voltage of battery being charged is called :
(A) Cut in speed.
(B) Synchronous speed
(C ) Run off speed
(D) Run out speed

44.The purpose of brushes in alternator of automobiles is :
(A)To collect current from rotor winding
(B)To collect current from stator winding -
(C )To convey current from battery to stator
(D)To convey current from battery to rotor

45. In an alternator current is induced in :
(A)Rotor winding 
(B)Stator winding
(C )Carbon brushes
(D)Slip rings

46.In starter motor the field coils are. wound around:
(A)Commutator
(B) Pole shoesPole shoes
(C )Yoke
(D) None of the above

47.The reflector used in automobile head lamp is of:
(A)Spherical shape
(B)Hemispherical shape
(C )Hyperbolic shape
(D)Parabolic shape

48.The purpose of filling inert gasses inside the bulbis :
(A)to reduce filament temperature
(B)to avoid dazzling effect
(C )to avoid vapourisation of filament
(D)none of the above 

49. Metal halide type HID head lamps are popularly known as :
(A) Mercury vapour lamp
(B) Xenon lampXenon lamp
(C ) Low pressure sodium lamp
(D) High pressure sodium lamp 

50.Transfer case is used in :,. •
(A) front wheel drive vehicles.
(B)rear wheel drive vehicles '
(C ) four wheel drive vehicles
(D)all of the above

51.VIN stands for:
(A) Vehicle Information Numerals
(B)Vehicle Identification Numerals
(C ) Vehicle Identification Number.
(D)Vehicle Index Number

52.In metric system pressure is measured in .
(A) Pascal
(B)PSI
(C ) erg
(D)Newton per metre

53.Which of the following is not a cutting tool?
(A) Hand file .
(B)Drill
(C ) Chisel
(D)Screw driver

54.Flaring operation is usually done on :
(A) Metal tube
(B)Metal channel
(C ) Rubber hoses
(D)Flat plates

55.Bench vice is a ‘
(A) Holding tool
(B)Filing tool
(C ) Marking tool
(D)None of the above

56.The unit of acceleration is :
(A) m/s
(B) m2/s
(C ) m.s
(D)m/s2

57.Youngs modulus is:’
(A) Shear stress/Shear strain
(B)Volumetric strain/Volumetric stress
(C ) Tensile stress/Tensile strain
(D)Shear strain/Shear stress



58.Co-efficient of friction is equal to:
(A) Sine angle of friction
(B)Limiting friction/ Normal reaction
(C ) Normal reaction / Limiting friction
(D)None of the above

59.Megger is on instrument used to measure:•
(A) resistance
(B)voltage
(C ) current
(D)temperature

60.Scissors is an example of:
(A) First order lever
(B)Second order lever
(C ) Third order lever
(D)Curved lever

61.Factor of safety is equal to.:
•(A) Ultimate stress/cross section area
(B)Ultimate lood/cross section area
(C ) Stress/Strain
(D)Ultimate stress/working stress

62.The quantity of heat required to raise the temperature of unit mass of substance through 1°C is called:
(A)Latent heat
(B)Fahren heat
(C )Specific heat
(D)None of the above

63.The function of waste gate in turbo charger is to :
(A)limit boost pressure
(B)increase boost pressure
(C )to cool the air
(D)reduce emission

64.Which of the following is not a part of waste gate assembly?
(A) Diaphragm
(B) Diaphragm spring
(C ) Valve*
(D) Turbine .

65.Morse test is not applicable to :
(A) Four stroke multi cylinder engine (C ) Multi cylinder Diesel engine
(B) Multi cylinder petrol engine (D) Four stroke single cylinder engine

66.Prony Brake is used to measure : 
(A) IP 
(B) BP 
(C ) FP
(D) none of the above

67. The chemical name of R-134 a is :
(A) Dichloro difiuro methane
(B)Tetra fluro methane
(C ) Chloro fluro methane
(D)Carbon tetra fluoride

68.The toner ring (Tone ring) is used in:
(A) Torque converter
(B)Lubrication system
(C ) ABS
(D)Air conditioning system

69. The type of stresses mainly developed in tappet duringvalve opening is :
(A) Tensile stress. 
(B) Compressive stress
(C ) Shear stress
(D) Torsional stress

70.In full floating type rear axle driving torqueis carry by:
(A) Axle shaft
(B)Axle casing
(C ) Bearing
(D)Bearing and axle casing

71.Thermosyphen cooling system works due to
(A) Pump force
(B)Humidity difference of system
(C ) Difference in density of coolant 
(D)None of the above

72.Wankel engine operates upon :•
(A)Brayton cycle
(B)Diesel cycle
(C )Otto cycle
(D)Atkinson cycle

73.Firing order of a four stroke four cylinder in line engine is 1-3-4-2. During operation, second cylinder is in compression stroke what process will progressing in first cylinder
(A) Suction
(B)Compression
(C ) Power
(D)Exhaust

74.The electrolyte used in lead acid battery is :
(A) Pb02
(B) Pb.O
(C ) PbS04
(D)H2SO4

75. The angle through which the wheel has to turn to sustain the side force is called :
(A) Camber angle
(B) Slip angleSlip angle
(C ) Rake angle
(D)None of the above


76.Break away capsule is a safety device associated with:
(A) Brake   (C ) Engine
(B) Airbag  (D) Steering column

77.The king pin inclination is usually :
(A) 2°
(B)15°
(C )4°
(D) 8°

78.Which of the following is not an insulator?
(A) Mica 
(B) Silver
(C ) Rubber
(D) Porcelain

79.Delco eye is associated with :
(A) Battery 
(B) Shocks absorber
(C ) Leaf spring
(D) Navigation system

80.The total distance covered by vehicles is recorded in:
(A)Speedometer
(B)Tachometer
(C ) Odometer
(D)None of the above

81.In which year did Sree Narayana Guru emphatically declare and categorically state that he did not hold any sort of affinity or allegiance to any religion, caste or creed?
(A)1915
(B)1916
(C )1917
(D)1918

82. Theact as a barrier against the cold winds blowing flow Central Asia and
prevent them from reaching India. 
(A) Himalayas (C ) Bay of Bengal
(B) Prairies (D) Andes

83.The Prime Minister of India launched the IInd International yoga day celebrations in Chandigarh on:
(A) June 19, 2016 (C ) June 25, 2016
(B) June 23, 2016 (D) June 21, 2016


84.The revolutionary organisation Hindustan Democratic Federation which actively involved in the Kakori case was founded by :
(A) * Barindra Kumar ghosh 
(B) Madanlal Dhingra
(C )Sachindra Sanyal
(D)Lala Hardayal

85.The Republican presidential nominee of the 2016 election in the united states of America :
(A)Mark Burns
(B)Hillary Clinton
(C ) Mike Pence 
(D) Donald Trump

86.Mahatma 'Ayyankali took a lower caste girl to get admission in a school at Uroottambalam.
What was her name?
(A)Sujatha
(B)Panchami
(C )Kannaki
(D)Chirutha

87.is the largest producer and exporter of tea in the world.
(A) U.S.A.
(B)Brazil
(C ) India
(D) China

88.Which is known as the ‘Black Pagoda’?
(A) Sun Temple of Konark (C ) Sree Padmanabha Temple
(B) Lingaraj Temple, Bhuvaneshwar (D)Raja Rajeshwara Temple
 
89.Name the President of Turkey:
(A) Burak Ackapar 
(B)Recep Tayyip Erdogan
(C ) Binali Yildirim
(B)General Bekir Ercan Van

90.The leader of ‘Anthnrjana Samajam organised under the patronage of V.T. Bhattatirippad : 
(A) Lekshmikutty Antharjanam .
(B) Koikkal Narayaniamma
(C ) Lekshmibai Thampuratty
(D) Parvathy Nenminimangalam

91.The great revolutionary Surya sen was famous for :
(A) Lahore conspiracy case
(B) Demand for complete independence
(C ) Chittagong Armed Raid
(D) Movement against Jallian wala Bagh

92.Banks of India were nationalised for the first time in the year: 
(A)1969
(B)1968
(C ) 1967 
(D) .1966

93.Name the Purana which contains the most systematic record of ancient Indian historical tradition:
(A) Skanta Purana
(B) Markkandeya Purana
(C )Agni Purana
(D)Vishnu Purana

94.Who first expounded the theory of‘Economic Drain’ of India during the British rule?
(A)Dadabhai Naoroji
(B)Shyamji Krishna Varma
(C )Abdul Kalam Azad .
(D)Bala Gangadhar Tilak

95.The first woman Prime Minister of great Britain :
(A) Margaret Alwa 
(B) Theresa May
(C )Mari sol Touraine
(D)None of the above

96.Name the author of Treatment of Tiyas’ in Travancore :
(A) K. Ayyappan
(B) Dr. Palpu
(C )K. Kelappan
(D)ChanganacheriPararaeswaranPillai

97.The country that won the copa America football tournament, 2016:
(A)Argentina
(B)Brazil.
(C )Chile
(D)Mexico

98.During the freedom struggle Kanpur conspiracy case was against:
(A) Communist movement
(B) Ghaddar movement
(C ) HSRA. 
(D) INA *

99.The real name of Vagbhatananda is : 
(A) Kunjiraman  (C ) Kunju Pillai
(B) Kunjanandan (D) Kunjikkannan

100.Which is the capital of Peru? 
(A) Santiago (C ) Lapaz
(B) Lima     (D) Havana