Junior Instructor Mechanic Motor Vehicle 240/2016 Answer Key

racing car engine blue silver tubes

Post : Junior Instructor Mechanic Motor Vehicle
Department : Industrial Training
Question Paper Code : 40/2017/OL
Category Code : 240/2016
Date of Test : 19-05-2017


  1. The component used to overcome viscous drag in the multi plate wet clutch
    • Solenoid
    • Hydraulic pump
    • Clutch brake
    • Disc valve
    Question error

  2. Arrangement of the chassis in which provide maximum utilization of space
    • Full-forward control chassis
    • Semi-forward control chassis
    • Conventional control chassis
    • None of these

  3. To accommodate any misalignment between the engine or transmission relative to frame or body with the help of
    • Brackets
    • Side member
    • Sub frame
    • Rubber blocks

  4. In a rear axle drive vehicle, torque reaction and braking torque are transmitted from the axle casing to the frame by means of
    • Pan hard rod
    • Leaf spring
    • Torsion bar
    • Stabilizer bar

  5. Hazard flashers are used to indicate
    • A slow moving vehicle in high speed lane
    • A disabled vehicle in high speed lane
    • A vehicle stopped in moving traffic
    • All of these

  6. Which type of brake chamber is provided with fail safe parking brake?
    • Spring brake chamber
    • Single diaphragm brake chamber
    • Double diaphragm brake chamber
    • Triple diaphragm brake chamber

  7. The propellant unit of air bag consists of
    • Potassium chloride and silver nitrate
    • Potassium chloride and sodium azide
    • Potassium nitrate and sodium azide
    • Potassium nitrate and sodium chloride

  8. Which of the following is controls fuel surge in fuel tank on vehicle movement?
    • Ribs
    • Baffles
    • Brackets
    • Belts

  9. Excess fuel pressure in a CRDI engine system is protected with a
    • ECU
    • Rail pressure sensor
    • Pressure limiter valve
    • Flow limiter

  10. The function of an air cleaner
    • Act as silencer
    • Act as flame arrester
    • Filtering intake air
    • All of these

  11. What are the basic factors affect the gear selection?
    • Vehicle load and engine speed
    • Vehicle speed and engine load
    • Vehicle load and road condition
    • Engine speed and road condition

  12. The cavitations formed inside the torque converter centre is the result of
    • Low oil pressure
    • Less engine RPM
    • Less torque conversion
    • None of these

  13. The plunging type constant velocity joint is employed at the ________ end of the drive shaft.
    • Wheel end
    • Differential end
    • Both Wheel end and Differentail end
    • Main shaft end

  14. Which of the following is not a reason for humming noise from the rear axle?
    • Worn out differential bearings
    • Backlash between crown and pinion
    • Worn out gears
    • Worn out axle shaft splines

  15. The material used to improve the resistance to wear of rubber threads in a tire is
    • Nylon
    • Rayon
    • Carbon black
    • Terylene

  16. Which part of a master cylinder serves to retain the residual pressure in the brake lines even when the brakes are released?
    • Check valve
    • Piston
    • Piston return spring
    • Primary cup

  17. Lamda sensors are located at
    • Exhaust manifold
    • Inlet manifold
    • Throttle body
    • Timing cover

  18. Sedimentation type fuel filters are generally used as
    • Baby filter
    • Secondary filter
    • Primary filter
    • All of these

  19. Which one of the following is a cylinder head gasket material?
    • Felcoprene
    • Felcoid
    • Cord
    • Shimbestose

  20. The ability of engine bearings to accommodates small variation in shaft is its
    • Embadability
    • Conformability
    • Adaptability
    • Fatigue strength

  21. The device fitted on diesel engine to develop vacuum to assist the pneumatic governor of FIP
    • Compressor
    • Inter cooler
    • Exhauster
    • Super charger

  22. Number of pole fingers in an alternator rotor
    • 8
    • 12
    • 14
    • 16

  23. Which of the following is a solid lubricant?
    • Graphite
    • lead
    • Tin
    • Aluminium

  24. The clearance between the oil pump gear teethes are measured with
    • Dial gauge
    • Vernier caliper
    • Inside micro meter
    • Feeler guage

  25. Which one of the following is not affected the fuel economy of an engine?
    • Clogged air filter
    • Clogged fuel filter
    • Leaky engine valves
    • Worn out piston rings

  26. Find the probable cause of wheel tramp
    • High speed
    • Under inflation
    • Incorrect toe-in
    • Dynamic unbalance

  27. A vehicle with torsion bar suspension required ________ to take the driving and braking thrust.
    • Stabilizer bar
    • Pan hard rod
    • Radius rod
    • Torque tube

  28. Which of the under mentioned fault can be change the steering axis inclination?
    • Bent wheel spindle
    • Worn out knuckle bearings
    • Bent track rod
    • Tight wheel bearing

  29. The effect of side wind over the frame side member is its
    • Lateral bending
    • Horizontal bending
    • Vertical bending
    • All of these

  30. Belleville springs are generally known as
    • Torsion springs
    • Coil springs
    • Helical springs
    • Diaphragm springs

  31. Which of the following gear boxes have lesser mechanical efficiency?
    • Synchromesh
    • Constant mesh
    • Sliding mesh
    • All of these

  32. Alloy steels are generally quenched in
    • Water
    • Oil
    • Brine
    • Ice

  33. The fastener used to transmitting torque from a rotating shaft to a hub or vize versa
    • Circlip
    • Locking ring
    • Tab washer
    • Key

  34. Adjustment of FIP in which ensure equal time interval of fuel delivery to all engine cylinders
    • Leak off
    • Calibration
    • Phasing
    • Chattering

  35. The process of continues releasing and applying of brake in an ABS is called
    • Pressure modulation
    • Pulse modulation
    • Speed modulation
    • None of these

  36. Maximum boost pressure of a turbocharger is controlled by a
    • EGR valve
    • Waste gate
    • Blow-off valve
    • Pressure release valve

  37. Annulus in an epicycle gear box is usually known as
    • Ring gear
    • Carrier
    • Planet
    • Sun gear

  38. The length variation between leaf spring eyes by the oscillation of leaves are accommodate with the help of
    • Centre bolt
    • Shackle
    • 'U' Clamp
    • Bracket

  39. Which among the following is a disadvantages of hypoid gear using in final drive?
    • Low chassis height
    • Smaller pitch overlap
    • Rough running
    • Less ground clearance

  40. The steering sensor in an electronic power steering system consist of
    • Torque and pressure sensor
    • Torque and speed sensor
    • Torque and rotation sensor
    • Speed and rotation sensor

  41. The percentage ratio between difference of vehicle speed and wheel speed to the vehicle speed is
    • Velocity ratio
    • Speed ratio
    • Slip ratio
    • Aspect ratio

  42. In a disc brake caliper, the component act as a return spring to retract the piston
    • Bleed screw
    • Rubber sealing ring
    • Disc
    • Friction pads

  43. Identify the horn relay with its marking
    • HBR
    • HRS
    • BRS
    • HBS

  44. Location of an expansion valve in an automotive air conditioning is at
    • Inlet side of evaporator
    • Outlet side of evaporator
    • Inside the evaporator
    • Inlet side of condenser

  45. The socket in which provided with a universal joint
    • Deep
    • Flex
    • Standard
    • None of these

  46. The catalyst used for first stage conversion in a three - way convertor
    • Vanadium
    • Cerium
    • Platinum
    • Rhodium

  47. Combustion knock in a CI engine is generally known as
    • Diesel knock
    • Diesel lock
    • Both Diesel knock and Diesel lock
    • Detonation

  48. Which of the following are provided to the crank shaft to the balancing of main journals?
    • Crank arm
    • Harmonic balancer
    • Crank weight
    • Crank pulley

  49. Permissible range of particulate matters in the exhaust gas of a petrol engine as per Euro 4 emission standard is
    • 0.14 gm/Km
    • 0.08 gm/Km
    • 0.05 gm/Km
    • None of these

  50. Oil additives which handle high temperature deposit such as gums and varnishes
    • Dispersant
    • Detergent
    • Anti-scuff additives
    • Anti foaming additives

  51. In an alternator, the carbon brushes ride on the
    • Commutator
    • Rotor shaft
    • Slip ring
    • Field windings

  52. Choose correct drive transmission from engine to gear box
    • Fly wheel -  cover - drive plate - driven plate
    • Fly wheel - cover - driven plate - drive plate
    • Fly wheel - driven plate - drive plate - cover
    • Fly wheel - drive plate - driven plate - cover

  53. As related to the automatic transmission, the friction loss in the manual transmission is
    • Less
    • Same
    • More
    • Much more

  54. Separate carrier type rear axle casing is generally known as
    • Split type
    • Salisbury type
    • Banjo type
    • Integral carrier type

  55. Which among the following springs have the greater energy storing capacity?
    • Coil spring
    • Torsion spring
    • Leaf spring
    • Rubber spring

  56. The shock absorber dissolve can be reduced by pressurizing the fluid with ________ gas.
    • Hydrogen
    • Nitrogen
    • Oxygen
    • Carbon dioxide

  57. In the code 145 SR-13 of a radial tire, 13 denominate
    • Tire width
    • Aspect ratio
    • Inner diameter of tire
    • Load carrying capacity

  58. Which light provide a better night time visibility?
    • Halogen
    • LED
    • Both Halogen and LED
    • Xenon

  59. The magnitude of slip angle is small at
    • Low speed
    • Medium speed
    • High speed
    • Very high speed

  60. In SI engine, which one of the following combustion chamber have centrally located spark plug?
    • Flat head
    • Hemispherical
    • Wedge type
    • Inverted bath tub

  61. To improve the resistance to wear and corrosion, cylinder liners are plated with
    • Platinum
    • Vanadium
    • Zinc
    • Chromium

  62. Which one of the following is not an advantage of toothed belt drive?
    • Silent drive
    • Lowest cost
    • Long life
    • No need of lubrication

  63. Tendency of fuel to change from liquid to vapour form is called
    • Pour point
    • Volatility
    • Viscosity
    • Flash point

  64. Cold plugs are generally used in
    • High speed heavy duty engines
    • Low speed heavy duty engines
    • Low speed medium duty engines
    • Both Low speed heavy duty engines and Low speed medium duty engines

  65. Which one of the given carburetor is a constant vacuum type?
    • Carter carburetor
    • S.U. carburetor
    • Zenith carburetor
    • Solex carburetor

  66. What are the advantages of dual mass fly wheel over a single fly wheel?
    • Less synchronization wear
    • Gear shifting easy
    • Reducing neutral gear rattle
    • All of these

  67. More injection delay period will lead to
    • Diesel knock
    • Detonation
    • Both Diesel knock and Detonation
    • Controlled combustion

  68. Which one of the following is not a part of cover assembly in a clutch?
    • Pressure plate
    • Release lever
    • Release bearing
    • Springs

  69. Free wheel unit in the transmission are provided with dog clutch to
    • Lock free wheel
    • Engage free wheel
    • Disengage free wheel
    • None of these

  70. Critical whirling speed of a propeller shaft can be increased by
    • Decreasing diameter
    • Increasing length
    • Both Decreasing diameter and Increasing length
    • Decreasing length

  71. Which member of a torque converter is also known as reactor?
    • Lock up clutch
    • Stator
    • Impeller
    • Turbine

  72. Front wheel drive cars are usually employed with ________ type independent suspension to provide maximum room in the engine compartment.
    • Vertical guide
    • Trailing link
    • Mac Pherson strut
    • Wish bone

  73. The effect of positive scrub radius on the road wheels are
    • Toe-in
    • Toe-out
    • Pull to one side
    • Wobble

  74. Glow plugs are fitted an engine with
    • Pre combustion chamber
    • Turbulent chamber
    • Both Pre combustion chamber and Turbulent chamber
    • Open combustion chamber

  75. The main disadvantage of lower aspect ratio
    • More tire wear
    • Less cornering power
    • High speed shimmy
    • Uncomfortable ride

  76. Contact breaker point of a 6 cylinder 4 stroke engine operating at 3000 RPM will make and break for _______times in a minute.
    • 3000
    • 6000
    • 9000
    • 12000

  77. One bar is equal to
    • 10 Kpa
    • 100 Kpa
    • 1000 Kpa
    • 10000 Kpa

  78. Piston rings and cylinder liners are
    • Die casted
    • Hollow casted
    • Sand casted
    • Centrifugal casted

  79. Gear mechanism in a slack adjuster
    • Worm and wheel
    • Worm and nut
    • Worm and roller
    • Rack and pinion

  80. The types of lubrication in which scavenging pump required
    • Splash system
    • Pressure system
    • Dry sump system
    • Petrol system

  81. The first mass movement started by Gandhiji in India
    • Quit India
    • Non-co-operation
    • Satyagraha
    • Civil Disobedience

  82. The Tebhaga movement started in
    • Bengal
    • Andrapradesh
    • Bombay
    • Gujarat

  83. The leader of Abinav Bharat Society
    • Lala Hardayal
    • Surya Sen
    • Pulin Bihari Das
    • V.D. Savarkar

  84. The first person to hoist Indian tricolour flag in an international forum
    • Subash Chandra Bose
    • Jawaharlal Nehru
    • Madame Bhikaji Cama
    • C.R. Das

  85. The leader of 1857 revolt at Kanpur
    • Nana Saheb
    • Bahadur Shah II
    • Beegum Hazret Mahal
    • Maulavi Ahammedullah

  86. The roof of the world
    • Himalaya
    • Hindukush
    • Karakoram
    • Pamir Plateau

  87. The longest Peninsular river
    • Mahanadi
    • Godavari
    • Narmada
    • Kaveri

  88. The Southernmost point of Peninsular India
    • Kanyakumari
    • Tamilnadu
    • Indirapoint
    • Srilanka

  89. The most important tax imposed by the central government
    • Land tax
    • Personal Income tax
    • Professional tax
    • Value Added tax

  90. The proclamation of Free Primary Education in 1817 issued
    • Rani Lakshmi Bhai
    • Rani Sethu Bhai
    • Rani Gowri Parvathy Bhai
    • Rani Gowri Lakshmi Bhai

  91. The father of Kerala Renaissance
    • Mannathu Padmanabhan
    • Ayyankali
    • Sri Narayana Guru
    • Chattambi Swamikal

  92. Samathwasamajam was started by
    • Sahodharan Ayyappan
    • Kumara Gurudevan
    • Vaikunda Swamikal
    • V.T. Bhattathiripad

  93. The Temple Entry Proclamation was announced on
    • 12 November 1936
    • 1 November 1936
    • 12 January 1936
    • 1 January 1936

  94. Ayyankali was called Pulaya Raja by
    • B.R. Ambedkar
    • Gandhiji
    • K. Kelappan
    • Pandit K.P. Karuppan

  95. Founder of Araya Samajam in Kerala
    • Kumara Gurudevan
    • Vagbhatananda
    • Vakkam Abdulkhadar Maulavi
    • Pandit K.P. Karuppan

  96. The winner of Australian Open Tennis 2016
    • Roger Federer
    • Rafael Nadal
    • Stan Wawrinka
    • Andymurray
    Question error

  97. R.B.I. Governor of India
    • Raguram Rajan
    • Pranav Mukherji
    • Venkita Ramanan
    • Urjit Patel

  98. The Jnanpith Award of 2017
    • Shankha ghosh
    • Reghuver Chaudhari
    • Balachandra Nemade
    • Namwarsingh

  99. First women leader of S.B.I
    • Arunima Singha
    • Arundhadhi Bhattachariya
    • Aruna Bhahuguna
    • Usha Anantha Subramaniyam

  100. The Chief Minister of Andrapradesh
    • Chandra Sekhar Reddy
    • Sidha Ramayya
    • Aravid Kejariwal
    • Chandra Babu Naidu

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