Post: Motor Mechanic
Department: Health Services
Category Code: 347/16
Qualification: Automobile Engineering + Two years Practical Experience in repairs and maintenance of Motor Vehicles + Possession of Motor Driving License
Question Paper Code: 68/18
Date of Test: 18-06-2018
If you find mistakes, comment below
- The heart of the ignition system circuit and component is :
- Condenser
- Ignition coil
- Generator
- Distributor
- When the clutch is disengaged position as a result :
- The power is transmitted
- The power is not transmitted
- The power is in neutral position
- None of these
- Most of the gear box casings are made of :
- High carbon steel
- Mild steel
- Chromium steel
- Aluminium alloy
- The brake fluid has the characteristics like :
- Velocity and pressure
- Velocity and speed
- Viscosity and boiling point
- Velocity and boiling point
- How many cells are used in 12 volt automobile battery?
- 3
- 4
- 8
- 6
- If the air fuel mixture ignites before the spark takes place at spark plug is called :
- Penetration
- Detonation
- Oxidization
- Pre-ignition
- What is the reason behind using aluminium alloy to make cylinder blocks?
- Light in weight and has good heat dissipation
- Low in material cost
- Good look in colour
- Heavy weight and poor heat dissipation
- The thermal efficiency of the 4 stroke engine is :
- Low
- Medium
- High
- Normal
- The inlet valve generally spins about 15 degree before TDC is called :
- Valve lag
- Valve lead
- Valve twist
- None of these
- In a 4 stroke cycle engine each cylinder has :
- Two parts
- Four valves
- One valve
- Two valves
Question Error
- The operation of removing trapped air from the hydraulic brake system is known as :
- Exhausting
- Trapping
- Bleeding
- Ventilation
- When a vehicle is moving on straight level road and the resistance affecting both the driving wheels is the :
- Lower
- Higher
- Normal
- Same
- Which of the following is not a part of differential gear box?
- Star pinion
- Axle shaft
- Drive pinion
- Crank shaft
- The shape of reflector used for automobile head lamp is :
- Circle
- Spherical
- Parabolic
- Elliptical
- The leaf springs are generally made of :
- Cast steel
- High carbon steel
- Cast iron
- Spring steel
- The backward tilt of the king pin and axle at the top is called :
- Camber angle
- Toe - in
- King pin inclination
- Caster angle
- The oil pump of the automobile engine is driven by the :
- Cam shaft
- Gear shaft
- Follower shaft
- Crank shaft directly
Question Error
- The clutch unit coil springs are located in between the pressure plate and the :
- Disc unit
- Battle
- Flywheel
- Clutch cover
- The wheel base of an auto car is :
- The distance between the rear tyres
- The distance between the front tyres
- Length of the vehicle
- The distance between the centre of the front and rear wheels
- The capacity of a lead acid battery is usually expressed in :
- Ohms
- Volt
- Ampere-hours
- Ampere
- __________operates contact breaker points of ignition system.
- Generator
- Starting motor
- Regulator
- Engine
- When the clutch operates in an oil bath, it is called :
- Dry type clutch
- Wet clutch
- Single plate clutch
- Centrifugal clutch
- __________ brings back brake shoes in their original position.
- Compression spring
- Tension spring
- Refracting spring
- Coil springs
- The main advantage of coil spring is that it doesn’t make :
- Wear and tear
- Braking tendency
- Noise problem
- None of these
- The air fuel ratio of a rich mixture is about :
- 8 : 1
- 9 : 1
- 13 : 1
- 10 : 1
- The acid used in lead acid battery is :
- Hydrofluoric acid
- Nitric acid
- Hydrochloric acid
- Sulphuric acid
- __________ gear is used to check straightness, end play of shafts, run out of wheels and backlash of gears.
- Vaccum gauge
- Pressure gauge
- Dual gauge
- Feeler gauge
- The volumetric efficiency of two stroke engine is :
- Medium
- Normal
- Less
- High
- The heavy lubricating oil has :
- Low viscosity
- Normal viscosity
- High viscosity
- None of these
- The firing order of 6 cylinders in-line engine is usually :
- 1 - 3 - 4 - 2 - 5 - 6
- 1 - 5 - 3 - 6 - 2 - 4
- 1 - 3 - 5 - 2 - 3 - 4
- 1 - 4 - 5 - 3 - 6 - 2
- The mixing of air and fuel in diesel engine occurs in :
- Carburetor
- Fuel pump
- Fuel injector
- Engine cylinder
- The CB point gap is measured by using :
- Micrometer
- Caliper
- Pitch gauge
- Feeler gauge
- The most effective air cleaner for diesel engine is :
- Wet type air cleaner
- Dry type air cleaner
- Water bath air cleaner
- Oil bath air cleaner
- The most commonly used car heater is :
- Diesel type
- Petrol type
- Hot water type
- Hot air type
- Piston displacement of an engine is :
- Volume of cylinder×Stroke×No. of cylinders
- Pressure of cylinder×No. of cylinder×Stroke
- Area of cylinder×Stroke×No. of cylinders
- Area of cylinder×Stroke volume×No. of cylinder
- The angle between the central plane of tyre and the direction of motion is known as :
- Tracking
- Turning radius
- Slip angle
- Toe - out
- The firing order for an in -line 4 cylinder IC engine is :
- 1 - 3 - 2- 4
- 1 - 2 - 3 - 4
- 1 - 3 - 4 - 2
- 1 - 2 - 4 - 3
- The brake drum is made of :
- Aluminium alloy
- Spring steel
- High carbon steel
- Cast iron
- The vibrations of single dry plate clutch are absorbed by :
- Pressure plate
- Centre hub
- Clutch Linkage
- Torsional spring
- The trouble of an engine misfiring is likely to result from :
- Incorrect air fuel mixture
- Air lock in the fuel lines
- Damage of ignition coil winding
- Spark plug gap is too wide
- The relationship between resistance, current, and voltage can be expressed in the form of an equation known as :
- Charle’s Law
- Faraday’s Law
- Flemming’s Law
- Ohm’s Law
- Most of the multi speed gear boxes contains :
- 3 shaft
- 4 shaft
- 2 shaft
- 5 shaft
- Brake fluid is a mixture of :
- Grease and diesel
- Petrol and grease
- Petroleum oil and grease
- Glycerine and alcohol
- The fluid generally used in shock absorber is a mixture of :
- 40% SAE 40 oil and 60% transformer oil
- 40% SAE 90 oil and 60% turbine oil
- 60% transformer oil and 40% turbine oil
- 60% turbine oil and 40% transformer oil
- The calorific value of diesel fuel is about :
- 30.5 mJ/kg
- 50 mJ/kg
- 45 mJ/kg
- 42.5 mJ/kg
- The air gap between the central electrode and ground electrode of a spark plug is around :
- 0.3 mm
- 0.02 mm
- 1.2 mm
- 1 mm
- The total piston displacement of all the engine cylinder is called :
- Compression ratio
- Engine torque
- Engine capacity
- Engine cycle
- In petrol engine the compression ratio varies from :
- 5 : 1 to 7 : 1
- 9 : 1 to 11 : 1
- 6 : 1 to 8 : 1
- 6 : 1 to 9 : 1
- The thermostat valve which is opened automatically by means of :
- High temperature whenever engine desires cooling
- Low temperature
- Water pressure
- Automatic switch
- The dilution of lubricating oil is caused by :
- Worn off particles
- Water
- Solid contaminants
- Fuels
- The brake lines in hydraulic brake system are made of :
- Plastic
- Rubber
- Aluminium
- Steel
- __________ brings back shoes in their original position when the brakes are not applied.
- Compression spring
- Retracting spring
- Pressure spring
- Torsion spring
- The frictional horsepower of a well adjusted petrol engine should be nearly :
- 20%
- 50%
- 15%
- 10%
- The automobile body should be sufficiently rigid so as to resist twisting on bad roads, is known as :
- Air drag
- Lightness
- Stiffness
- Torsional stiffness
- __________ types of gear boxes are generally used in motor cycles.
- Synchronising gear boxes
- Constant mesh
- Epicyclic
- Progressive type
- If the engine coolent leaks into the engine oil as a result :
- Oil becomes thick oil
- Turns into black colour
- Appears milky stage
- None of these
- The main function of an alternator in an automobile is to :
- Convert chemical energy into electrical energy
- Convert mechanical energy into electrical energy
- Convert mechanical energy into chemical energy
- Continually recharge the automobile battery
Question Error
- The purpose of crank case ventilation is to :
- Remove oil from the crank case
- Remove harmful particles from the engine
- Remove air from the crank case
- All of these
- The main function of a governer in an automobile is to :
- Maintain constant speed
- Minimize the fuel economy
- Minimize the engine power
- Limit the vehicle speed
Question Error
- The advantage of both brazing and soldering is :
- Lower production cost
- Good availability of materials
- Less maintenance charge
- Many similar and dissimilar materials can be joined
- The function of cross wire grooves tyre is :
- Better steering properties
- Good traction
- Better load carrying capacity
- Absorb shocks due to road unevenness
- A Rotameter is a device used to measure :
- Velocity of fluid
- Pressure of fluid
- Volume flow rate of fluid
- Density of the fluid
- ABS stands for :
- Automatic Braking System
- Antilock Braking System
- Advanced Braking System
- None of these
- Newton - meter is the unit of :
- Energy
- Torque
- Power
- Work
- The level of carbon monoxide in the exhaust gases is controlled by :
- Oxidization
- Fillerization
- Carbonization
- Emission control
- The process in which the volume remains constant is :
- Isobaric process
- Isochoric process
- Isothermal process
- Isentropic process
- The exhaust valves are generally made of :
- High carbon steel
- Copper alloy
- Vanadium steel
- Silichrome steel
- The roller bearings are used in :
- Light load vehicle
- Heavier load vehicle
- Light and heavy load vehicles
- None of these
- The clutch facings are usually attached to the plate by :
- Copper screws
- Aluminium rivets
- Brass rivets
- None of these
- The bottom ring on the piston is known as :
- Compression ring
- Oil compression ring
- Grove ring
- Slip ring
- The quantity of heat produced by fuel combustion is called :
- Volatility
- Anti-knock value
- De-carbonization
- Calorific value
- The tool used to measure the shaft run-out is the :
- Caliper
- Steel rule
- Feeler gauge
- Micrometer
Question Error
- Universal joint which enables the drive shaft to transmit power at :
- Vertical angle
- Parallel angle
- Varied angle
- None of these
- The torque available at the contact between driving wheels and road is called :
- Brake effort
- Gear effort
- Clutch effort
- Tractive effort
- __________ type of starting motor is generally used in automobiles.
- Shunt motor
- Compound motor
- Induction motor
- Series motor
- Which one of the following is not a part of the chassis?
- Front axle
- Chassis frame
- Rear axle
- Passenger seat
- The main purpose of transmission in an automobile is :
- To vary the power of automobile
- To vary the speed of the vehicle
- To vary the torque at the road wheels
- To vary the pressure at the road wheel
- For loosening of cylinder head bolts we should prefer to use :
- Double end spanner
- Adjustable spanner
- Ring spanner
- Torque wrench
- The types of wheels preferred in sports cars are :
- disc wheel
- wire wheel
- magnesium alloy wheel
- aluminium alloy wheel
- For identification the colour of tail light in a car is :
- White
- Red
- Green
- Yellow
- The Indian Constitution is regarded as __________.
- Federal in form and unitary in spirit
- Federal
- Unitary
- Parliamentary
- Which of the following is not a fundamental right?
- Right against exploitation
- Equal pay for equal work
- Equality before law
- Freedom of Religion
- Indian Constitution provides for a __________.
- Unitary System
- Presidential System
- Bicameral System
- Unicameral System
- Plebiscite is used for __________.
- Enactment of Laws
- Appointment of Civil Servants
- Appointment of Judges
- Ascertaining the views of people on a policy matter of public importance
- A candidate seeking election to a State Legislative Assembly must have completed the age of
__________.
- 25 years
- 30 years
- 21 years
- 40 years
- The Right to Information Act (RTI) was passed in India in __________.
- 2013
- 2005
- 2017
- 2016
- The Prevention of Atrocities Act, 1989 was passed for __________.
- Preventing corruption
- Preventing theft
- Preventing atrocities against SC/ST people
- Preventing atrocities against politicians
- National Food Security Act was passed in India in __________.
- 2005
- 2001
- 2010
- 2013
- The Western System of education was introduced in India by __________.
- Lord Macaulay
- Lord Dalhousie
- Lord Cornwallis
- None of these
- The man known as father of modern India is __________.
- Vivekananda
- Rajaram Mohan Roy
- Mahatma Gandhiji
- Indira Gandhi
- Chattampi Swamikal was a __________ reformist.
- Ezhava
- Pulaya
- Nair
- Tribal
- ‘Sahodara Sangam’ was founded by __________.
- K. Kelappan
- Ulloor
- Kumaranasan
- Ayyappan
- The leader of Guruvayoor Satyagraha was __________.
- K. Kelappan
- Ayyappan
- Chattampi Swamikal
- Gandhiji
- Who discovered the South-West Monsoon?
- Marco Polo
- Ma Huan
- Hippalus
- Fahien
- George Eliot was the pen name of __________.
- King George - V
- Hamilton
- Homer
- Mary Ann Evans
- The first book printed by Guttenberg was __________.
- Khuran
- Bible
- Newspaper
- Mahabharata
- Calligraphy is __________.
- The art of beautiful and stylised writing
- The art of painting
- The method of reading
- The method of printing
- Philanthropist works for __________.
- Animals
- Birds
- Social upliftment
- Environment
- The Nathula pass connects India to __________.
- Nepal
- Burma
- China
- Pakistan
- The first Woman player to cross 6000 runs in ODI (One Day International) Cricket World Cup is __________.
- P. Sindhu
- Sonali
- Karnam Malleswari
- Mithali Raj
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