TRADESMAN AUTOMOBILE - HEAT ENGINES TECHNICAL EDUCATION -EKM KNR DISTS.pdf (Size: 1.29 MB / Downloads: 2)
1.The unit of temperature in SI unit is :
(A) Kilogram(B)Centigrade
(C ) Kelvin(D)Celsius

2.Crank case dilution is :
(A) Dilution of lubricating oil(B)Addition of water in crank case
(C ) Dilution of diesel in crank case(D)None of these

3.The top ring on the piston is known as :
(A) Ring grove(B)Compression ring
(C ) Oil ring(D)Scrapper ring

4.The purpose of Feeler gauge is :
(A) Measuring the small gap(B)Measuring the length of a rod
(C ) Measuring the diameter of a cylinder(D)Measuring length of a beamMeasuring length of a beam

5.Viscosity of the oil is the measure of it’s : 
(A) Resistance flow(B)Velocity flowVelocity flow
(C ) Temperature flow(D)Current flowCurrent flow

6.The voltage per cell in a lead acid battery is : 
(A) 1 volt(B)1.5 volt1.5 volt
(C ) 8 volt(D)2 volt

7.The chamber angle is usually :
(A) 1/4"(B)Between 1/2" to 2'
(C ) Between 1" to 3"(D)Between 4" to 6"

8. The cylinder block of heavy engine is made of:
(A)High carbon steel (C ) Cast iron
(B) Nickel or chromium steel (D) Medium carbon steel

9.Ohms law relates  potential difference with :
(A) Time(B)VoltageVoltage
(C ) Current(D)Power

10.The standard firing order for an in-line 6 cylinder 1C engine is:
(A) 1—5—3—G~2—4(B)1-3-6-4-2-6
(C ) l-G-5-4-2-3(D)1-4-5-2-3-6

11.The dynamo in an automobile is basically :
(A) DC generator(B)TransformerTransformer
(C ) Resistance(D)All of the aboveAll of the above

12.The knocking tendency of spark ignition engine is reduced by:
(A) Advancing ignition timing
(B) High compression ratio
(C ) Low exhaust gas temperature
(D) Adding dope like tetra ethy lead to the fuel

13.The gear ratio of camshaft and crankshaft is:
(A) 1:1(B)1:2
(C ) 1:6(D)1:8

14.The maximum temperature in the IC engine cylinder is:
(A) 700-1200°C(B)1000-1500°C
(C ) 2000 - 2500°C(D)-1500 - 2000°C

15.Which is more viscous lubricating oil?
(A) SAE 50(B)SAE 40
(C ) SAE 70(D)SAE 90

16.Scavenging is usually done to increase :•
(A) Thermal efficiency(B)Speed of the engine
(C ) Less fuel consumption(D)Power output

17.All the four wheel drive automobiles has
(A)Water cooled engine (C ) Four stroke engine

18.The radiator is usually made of:
(A)Bronze (C ) Steel
(B) Air cooled engine (D) Two differentials
(B) Cast iron (D) Copper

19.Air standard efficiency of an 1C engine depends on :,
(A)Compression ratio(B)Fuel used
(C )Velocity ratio(D)Power ratio

20.The materials used for cylinder head are generally :
(A)Alluminium(B)High carbon steel
(C )Mild steel(D)Cast iron

21.Which law states that pressure remaining constant the volume of a fixed mass of gas is directly proportional to it’s absolute temperature?
(A)Boyle’s law(B)Charle’s law
(C )Regnault's law(D)Joule’s law

22.The air fuel ratio of petrol engine is controlled by :
(A)Fuel injection pump(B)Governor
(C )Injector(D)Carburettor

23.--------------tool is used for lightening the nuts and bolt with a specified torque.
(A)Adjustable wrench(B)Torque wrench
(C )Pipe wrench(D)Tubular spanner

24.The volume sept by the piston in moving from TDC to BDC is called :
(A)Piston displacement(B)Clearance volume
(C )Engine capacity(D)Total volume

25.The total piston displacement of all the engine cylinders is :
(A)Engine capacity(B)Valve capacity
(C ) Fuel tank capacity(D) Rocker arm capacity '

26.A smoky blue exhaust is due to:
(A)incorrect valve adjustment
(B)incorrect tappet adjustment
(C )burning of oil in combustion chamber
(D)rich mixture in the combustion chamber

27. Engine torque is transmitted to the gear box through :
(A) Gear box(B)Belt
(C ) Chain(D)ClutchClutch

28.Speedometer drive is usually taken from :
(A) Fan belt(B)Rear wheel
(C ) Dynamo(D)Front wheelFront wheel

29.Free clutch pedal play in car clutches is about:.
(A) 10 mm(B)60 mm
(C ) 90 mm(D)30 mm30 mm

30.The specific gravity for fully charged lead acid batteryis:
(A) 1.150-1.160(B)1.175-1.185
(C ). 1.125-1.135(D)1.220-1.230

31.The bellows type valve, the bellows are Filled withi liquid such as :
(A) kerosene(B)dieseldiesel
(C ) oil(D)alcohol or acetonealcohol or acetone

32.A compressed air break system is a type of:
(A) mechanical brake(B)hand brake
(C ) vaccum assisted brake(D)friction brake

33.Multi oil indicate :
(A) SAE 20W-50(B)SAE 120
(C ) SAE 90(D)APISF

34. The coil spring in wish bone suspension placed between the :
(A)Upper wish bone and the cross member
(B)Shock absorber and the cross member
(C )Lower wish bone and the cross member
(D)Three wish bones

35. The packing brake generally acts on :
(A) Propeller shaft(B)Front wheels
(C ) Rear wheels(D)Front and rear wheel

36.rating of diesel fuel is given by :
(A) 1.5(B)octane number
(C ) cetane number(D)2PLN

37.The central gear of an epi cyclic gear set is called a :
(A) Internal gear(B) Planet gear
(C ) Ring gear(D) Sun gear

38.The torque increased in a vehicle obtained by : 
(A) Decreasing power (C ) Decreasing fuel consumption
(B) Decreasing speed
(D) Increasing fuel consumption

39.The condition that causes vapour locking in a brake system :
(A)An excessively high engine speed on a downhill road
(B)Over cooling of the brake during high speed driving
(C )Keeping the vehicle without use for an extended period
(D)Overheating of the fluid due to frequent brake application

40.The oil pump is driven by the :
(A) cam shaft(B) primary shaft
(C ) main shaft(D) crank shaft directly

41.Less or uneven pressure of air in the wheels shall result in :
(A) smooth steering(B) hard steering
(C ) front axle shifted(D) loose tie rod

42.The oil or fluid used in torque converter is :
(A)SAE -90 (C ) Mineral oil
(B)SAE 30—40
(D) Brake oil

43.Valve ring compressor is used to----------the valve springs while removing or installing the engine valve.
(A)Depress
(C ) Brittleness
(B)Compress
(D)Toughness

44.The fully charged battery is brought to a temperature of:
(A)90CF(B)45°C
(C )120°F(D)80°F

45.The transmission in which various speeds are obtained automatically are known as :
(A)Constantpowertransmission(B)High torquetransmission
(C )Low speed transmission(D)Automatic transmission

46.The rotary motion of the crank shaft is in turn used to drive the —-----------generating power.
(A)Motor
(C )Engine
(B) Transformer (D) Generator

47.Baffles are provided on engine to :
(A) Reduce fuel consumption (C ) Improve heat transfers rate
(B) Improve engine performance (D) Reduce the knocking effect

48.Which of the following statement is true statement?
(A)Heavier fly wheel is needed in two stroke engine,
(B)Lighter flywheel is needed in four stroke engine
(C )Low thermal efficiency in four-stroke engine
•(D) Volumetric efficiency is less in two stroke engine

49.The tacometer is used to measure the: 
(A) Engine oil viscosity (C ) Engine temperature
(B) Engine compression (D) Engine rpm

50.During combustion, fuel and water particles escape from the combustion chamber into the crank chamber, which dilute the lubricating oil contained in the oil sump is known as :
(A)Crank case dilution(B)Crank case burning
(C )Crank case explosion(D)Crank case ventilation

51.The order or seqnence in which the firing takes place in different cylinders of a multi cylinder engine is called :
(A)Air-fuel ratio(B)Power ratio
(C )Fuel ratio(D)Firing order

52.When the top of the wheel is fitted inward, then it is called:
(A) Kins pin inclination(B) Positive camber
(C ) Caster angle-(D) Negative camber

53.The main function of a suspension is to :
(A)Correct the effect of steering automatically
(B)Wheel alignment is not distributed during driving
(C )Steering wheel can driven a suitable amount of steering force
(D)Absorb vibration and impact forces from the road surface

54.The type of rear axle used in a car and light commercial vehicles are:
(A)Semi -floating axle(B)Full floating axle
(C )Three-quarter floating axle(D)None of theseNone of these

55.The function of gear box in an automobile is to :
(A)Vary speed
(B)Vary torque
(C )To disconnect the road wheels from the engine when desired
(D)Permanent speed reduction

56.Which instrument is used to measure specific gravity?
(A)Hydrometer(B)Thermometer
(C )BarometerBarometer(D)Tacometer

57.--------------are provided in the dutch smooth engagement.
(A)Coil spring(B)Cauhion spring
(C )Torsion spring(D)Spring basic disc

58.A ring gear is provided around the engine flywheel:
(A)To start the engineusing self starter (B)To operate the valves
(C )To maintain betterenginespeed(D)To maintain the water pump speed

59.--------------serves to adjust the length of the propeller shaft when demanded by the rear
axle movement.
(A)Universal joint(B)Cap joints
(C )Corner joint(D)Slip joint

60.The torque available at the contact between wheels and rod is :
(A)Tractive effect(B)Gear effect
(C )Brake effect(D)axle effect

61.The Rear wheels should follow in the tracks of front wheels in a parallel position is called:
(A) Turning radius(B) Uniform motion of wheel
(C )Negotiating turn(D)Tracking

62.Which of the following is false statement?
(A)Thermal efficiency is low in petrol engine
(B)Thermal efficiency is high in diesel engine
(C )Petrol engine works on constant volume cycle
(D)Compression ratio varies from 6.1 to 9.1 in Diesel engine

63.The basic frame work of an engine is :
(A) cylinder head(B)oil sumpoil sump
(C ) cylinder block(D)connecting rodconnecting rod
oil sump is made of:
(A) cast iron(B)alluminium alloy
(C ) zinc sheet(D)pressed steel sheet

65.While smoke from a diesel engine can be expected during :
(A) Start up or idling(B) High load operation
(C ) High Speed operation(D) All of the above

66.The term BTDC stands for :
(A) Below Top Dead Centre (C ) Back Top Dead Centre
(B) Before Top Dead Centre (D) Balance Top Dead Centre

67.The advantages of tube leas tyro over tube type tyre is :
(A) slow air leakage(B) chances of running flat is less
(C ) better fuel efficiency(D) all of these

68. Differential gear box oil is usually renewed after :
(A) 6000 km(B) 4000 km
(C ) 1500 km(D) 2500-6000 km

69.An over inflated tyre will wear the tread most near the :
(A) centre(B) corner
(C ) edges(D) none of these

70.Piston, compression rings and made of:
(A) spring steel(B) Alluminium
(C ) copper alloy(D) cast iron

71.The power to be transmitted to the road wheels at varied lengths and varied angles is: 
(A) axle shaft(B) primary shaft
(C ) bevel shaft(D) propeller shaft

72.In an automobile the wheels convert rotary motion into :
(A) Reciprocating motion(B) Downward motion
(C ) Upward motion(D) Longitudinal one

73.For maximum engine speed and power, additional fuel must be supplied-----------------help in providing additional fuel for maximum power.
(A)chock valve(B)Throttle valueThrottle valve
(C )Additional nozzleAdditional nozzle(D)Economizer valueEconomizer valve35/2015 

74.In otto cycle engines the knocking tendency is reduced by :
(A)Adding dope like tetraethy load to the fuel
(B)High exhaust temperature
(C )Less compression ratio
(D)High compression ratio

75.Bendix drive is generally known as:
(A)Front axle drive(B)Rear axle drive
(C )Bendix gear drive(D)Inertia drive

76.The front and rear wheel, tyre pressure of Ambassador car is :
(A)15psi-18psi(B)20 psi-25 psi
(C )24 psi - 25 psi(D)26 psi — 28 psi

77.Brake bleeding is the process of removing---------from the system.
(A) Broke oil(B) Air
(C )Vacuum(D)Excess pressure

78.-------------is the conventional material for engine cylinder heads and block.
(A) Alluminium#(B) Steel
(C )Vacuum(D)Cast iron

79.The type of wheels preffered in sport vehicles ore:
(A)Wire wheel(B)Copper alloy wheel
(C )Alluminium alloywheel(D)Disc wheel

80.In modern car the head light dimming switch is mounted on the :
(A) Dash board(B) Steering column
(C ) Side hoard(D) Flour board

81.In which district of Kerala is the Mathikettan Shola Notional Park situated?
(A) Palakkad (C ) Idukki

82.The first Biosphere Reserve in India is : 
(A) Nilgiri Biosphere Reserve (C ) Nandadevi Biosphere Reserve
(B)Wayanad (D) Pathanamthitta
(B)Sunderban Biosphere Reserve
(D)Gulf of Mannar Biosphere Reserve

83. In which year Indian parliament passed the National Rural Employment Guarantee Act?
(A) 2005(B)2000
(C ) 2009(D)2004

84.The NABARD was set up in the year :
(A) 1982(B)19851985
(C ) 1987(D)19841984

85.The founder of the Servants of India Society is :
(A) Gopala Krishna Gokhale(B)Balagangadhara Tilak
(C ) Subhash Chandra Bose(D)Annie Basant

86.The revolt of 1857 broke out in :
(A) Lucknow(B)Kanpur
(C ) Meerut(D)AllahabadAllahabad

87.River that flows through the Silent Valley National Park :
(A) Kabani(B)Kunthypuzha
(C ) Kallaipuzha(D)Bhavani

88.Who is the Kerala Government Chief Whip?
(A) Sakthan Nadar(B)P.C. George
(C ) K.Radhakrishnan(D)G. Karthikeyan

89.Who is the men’s singles champion in Australian opentennis 2014?
(A) Rafael Nadal(B)Roger Federer
(C ) Stanislas Wawrinka(D)Novae Djokovic

90.Nobel prize winner in literature in 2013 is :
(A) James Rothman(B)Alice Munro
(C ) Peter Hanson(D)Michael Levit

91.Who wrote the Book “Mokshapradeepam"?
(A) Mannathu Padmanabhan(B)Dr. Palpu
(C ) Kumara Guru(D)Brahmananda Swami Sivayogi

92.Ayyankali was born in the year :
(A)1773(B)1873
(C )1883(D)1863

93.Kuriakose Elias Chavara died in 1871 at:
(A)Kainakary(B)Koonammavu
(C )Mannanam(D)Ramapuram

94.Who wrote the book ‘Jaathikkummi’ ?
(A)Dr. Paipu(B)Vagbhatananda
(C )K.P. Karuppan(D)Vallathol

95.Who founded Swadeshabhimani news paper?
(A)Ramakrishna Pillai(B)Panampilli Govinda Menon
(C )K.Kelappan(D)Vakkom Maulavi

96.The first secretary of SNDP Yogam:
(A)Sree Narayana Guru(B)K.P.Karuppan 
(C )Ayya Vaikundar(D)Kumaranasan

97.Who wrote the book ‘Vedadhikara Niroopanam’?
(A)Kuriakose Elias Chavara(B)V .T. Bhattathirippad
(C )Chattampi Swamikal(D)Dr. Palpu

98.Winner of ezhuthachan award 2013 is :
(A)Prof. M.K.Sanu(B)Dr. M Leelavathi 
(C )O.N.V. Kuruppu(D)M.T. Vasudevan Nair

99.The 2014 Asian Games is scheduled to take place in :
(A)Indonesia(B)Thailand 
(C )Philippines(D)South Korea

100.The best actor in Kerala state Film Award 2013 is :
(A)Biju Menon(B)Prithviraj
(C )Mohan Lai(D)Manoj K. Jayan