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Latest Odisha Police Firefighter Exam Question (Objective Questions), MCQ in English

Subjects : Basic knowledge of vehicle and its maintenance, Traffic signal, Road Safety and Rules

Question Bank Odisha Police Firefighter Exam - English
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Basic knowledge of vehicle and its maintenance

Question 1Single Answer
What is the main function of an automobile engine?
  1. A
    To store electrical energy
  2. B
    To convert fuel energy into mechanical power
  3. C
    To control tyre pressure
  4. D
    To increase braking force
Question 2Single Answer
Which component forms the main structure of an engine?
  1. A
    Radiator
  2. B
    Flywheel
  3. C
    Alternator
  4. D
    Engine block
Question 3Single Answer
What is the function of a piston in an engine?
  1. A
    To operate the headlights
  2. B
    To cool the radiator
  3. C
    To filter engine oil
  4. D
    To transmit combustion force to the connecting rod
Question 4Single Answer
Which component connects the piston to the crankshaft?
  1. A
    Camshaft
  2. B
    Timing belt
  3. C
    Valve spring
  4. D
    Connecting rod
Question 5Single Answer
What is the main function of the crankshaft?
  1. A
    To convert reciprocating motion into rotary motion
  2. B
    To supply fuel to the engine
  3. C
    To control coolant temperature
  4. D
    To filter incoming air
Question 6Single Answer
Which component controls the opening and closing of engine valves?
  1. A
    Flywheel
  2. B
    Oil pump
  3. C
    Camshaft
  4. D
    Radiator
Question 7Single Answer
What is the purpose of the cylinder head?
  1. A
    To control tyre rotation
  2. B
    To close the upper end of the cylinders and house valve components
  3. C
    To increase fuel tank capacity
  4. D
    To support the rear axle
Question 8Single Answer
Which component helps prevent combustion gases from escaping past the piston?
  1. A
    Piston rings
  2. B
    Water pump
  3. C
    Timing chain
  4. D
    Fuel injector
Question 9Single Answer
What is the function of the flywheel?
  1. A
    To control steering movement
  2. B
    To regulate tyre pressure
  3. C
    To filter exhaust gases
  4. D
    To store rotational energy and smooth engine rotation
Question 10Single Answer
What does TDC stand for in engine terminology?
  1. A
    Total Drive Control
  2. B
    Transmission Duty Cycle
  3. C
    Turbo Diesel Cooling
  4. D
    Top Dead Centre
Question 11Single Answer
What does BDC mean in an internal combustion engine?
  1. A
    Basic Diesel Control
  2. B
    Bottom Dead Centre
  3. C
    Brake Drum Clearance
  4. D
    Battery Drive Circuit
Question 12Single Answer
How many strokes are completed in one working cycle of a four-stroke engine?
  1. A
    Two
  2. B
    Four
  3. C
    Six
  4. D
    Three
Question 13Single Answer
Which is the correct sequence of strokes in a four-stroke engine?
  1. A
    Compression, exhaust, intake, power
  2. B
    Intake, compression, power, exhaust
  3. C
    Power, intake, exhaust, compression
  4. D
    Exhaust, power, compression, intake
Question 14Single Answer
During which stroke is the charge compressed in a four-stroke engine?
  1. A
    Intake stroke
  2. B
    Compression stroke
  3. C
    Exhaust stroke
  4. D
    Power stroke
Question 15Single Answer
During which stroke does expanding combustion gas push the piston downward?
  1. A
    Intake stroke
  2. B
    Power stroke
  3. C
    Exhaust stroke
  4. D
    Compression stroke
Question 16Single Answer
What is the primary function of an intake valve?
  1. A
    To remove used engine oil
  2. B
    To discharge exhaust gases
  3. C
    To control cooling water
  4. D
    To allow fresh charge or air into the cylinder
Question 17Single Answer
What is the function of an exhaust valve?
  1. A
    To supply lubricating oil
  2. B
    To allow burnt gases to leave the cylinder
  3. C
    To increase battery voltage
  4. D
    To control the clutch
Question 18Single Answer
Which component creates the spark in a conventional petrol engine?
  1. A
    Fuel filter
  2. B
    Glow plug
  3. C
    Spark plug
  4. D
    Oil injector
Question 19Single Answer
How is fuel normally ignited in a conventional diesel engine?
  1. A
    By the heat of compressed air
  2. B
    By a spark plug
  3. C
    By the radiator
  4. D
    By battery acid
Question 20Single Answer
What is the main purpose of a head gasket?
  1. A
    To transmit engine power to the wheels
  2. B
    To regulate wheel alignment
  3. C
    To increase exhaust pressure
  4. D
    To seal the joint between cylinder head and engine block
Question 21Single Answer
Which part provides the passage in which the piston moves?
  1. A
    Fuel pipe
  2. B
    Intake manifold
  3. C
    Engine cylinder
  4. D
    Oil filter
Question 22Single Answer
What is the function of the oil control ring on a piston?
  1. A
    To regulate the oil film on the cylinder wall
  2. B
    To open the intake valve
  3. C
    To increase fuel pressure
  4. D
    To rotate the camshaft
Question 23Single Answer
What does the engine displacement represent?
  1. A
    Radiator coolant capacity
  2. B
    Fuel tank capacity
  3. C
    Total swept volume of all cylinders
  4. D
    Total weight of the engine
Question 24Single Answer
Which unit is commonly used to express engine displacement?
  1. A
    Kilowatt
  2. B
    Newton
  3. C
    Cubic centimetre
  4. D
    Volt
Question 25Single Answer
What is meant by piston stroke?
  1. A
    Diameter of the piston
  2. B
    Thickness of the cylinder wall
  3. C
    Distance travelled between TDC and BDC
  4. D
    Length of the connecting rod

Traffic signal, Road Safety and Rules

Question 26Single Answer
What does a steady red traffic signal normally require a driver to do?
  1. A
    Increase speed
  2. B
    Sound the horn continuously
  3. C
    Turn without looking
  4. D
    Stop before the stop line
Question 27Single Answer
What does a steady green traffic signal permit?
  1. A
    Movement in the permitted direction when the path is safe
  2. B
    Parking in the intersection
  3. C
    Ignoring pedestrians
  4. D
    Driving against traffic
Question 28Single Answer
What does a steady amber traffic signal generally indicate?
  1. A
    Parking is compulsory
  2. B
    Overtaking is compulsory
  3. C
    Increase speed to cross the junction
  4. D
    Stop if it is safe to do so because the signal is changing
Question 29Single Answer
Which colour is normally displayed at the top of a vertically arranged three-colour traffic signal?
  1. A
    Red
  2. B
    Amber
  3. C
    Blue
  4. D
    Green
Question 30Single Answer
What is the purpose of a traffic signal system at a busy intersection?
  1. A
    To increase vehicle emissions
  2. B
    To regulate conflicting traffic movements
  3. C
    To replace all road markings
  4. D
    To allow unrestricted movement
Question 31Single Answer
What should a driver do when approaching a flashing amber traffic signal?
  1. A
    Stop permanently
  2. B
    Proceed cautiously, observing other traffic and applicable priority rules
  3. C
    Ignore the intersection
  4. D
    Accelerate without checking
Question 32Single Answer
What is the usual meaning of a flashing red signal when used as a stop control?
  1. A
    Parking is permitted
  2. B
    Speed should be increased
  3. C
    The road is closed for pedestrians only
  4. D
    Stop and proceed only when safe and permitted
Question 33Single Answer
What should a driver do when a green signal is displayed but traffic is blocking the intersection?
  1. A
    Wait until sufficient space is available beyond the intersection
  2. B
    Sound the horn repeatedly
  3. C
    Drive onto the pedestrian crossing
  4. D
    Enter and stop in the middle
Question 34Single Answer
What is the purpose of a green directional arrow at a traffic signal?
  1. A
    To prohibit movement in all directions
  2. B
    To permit movement in the indicated direction, subject to safety and applicable controls
  3. C
    To indicate a railway station
  4. D
    To permit parking
Question 35Single Answer
Which signal requires traffic to remain stopped?
  1. A
    Steady green circular signal
  2. B
    Flashing amber caution signal
  3. C
    Green directional arrow for the intended movement
  4. D
    Steady red circular signal
Question 36Single Answer
What should a driver do if a green signal changes to amber while approaching?
  1. A
    Accelerate sharply
  2. B
    Stop if this can be done safely
  3. C
    Ignore the light
  4. D
    Apply the parking brake while moving
Question 37Single Answer
What does a red directional arrow indicate?
  1. A
    All traffic must proceed
  2. B
    Parking is compulsory
  3. C
    Movement in the indicated direction is prohibited
  4. D
    Overtaking is allowed
Question 38Single Answer
What is a pedestrian signal mainly used for?
  1. A
    Controlling highway toll collection
  2. B
    Controlling fuel consumption
  3. C
    Measuring vehicle speed
  4. D
    Regulating pedestrian crossing movements
Question 39Single Answer
What does a red standing-person symbol normally instruct pedestrians?
  1. A
    Do not begin crossing
  2. B
    Cross immediately
  3. C
    Run across the road
  4. D
    Walk only on the median
Question 40Single Answer
What does a green walking-person signal normally indicate?
  1. A
    Vehicles have unlimited priority
  2. B
    Pedestrians must stop
  3. C
    Pedestrians may begin crossing when safe
  4. D
    All vehicles must reverse
Question 41Single Answer
What should a turning driver do when pedestrians are lawfully crossing the road being entered?
  1. A
    Accelerate ahead of them
  2. B
    Sound the horn
  3. C
    Yield to the pedestrians
  4. D
    Enter the crossing
Question 42Single Answer
What is the function of a countdown display at a traffic signal?
  1. A
    To show engine RPM
  2. B
    To show remaining time for the relevant signal phase where fitted
  3. C
    To indicate vehicle fuel consumption
  4. D
    To display vehicle registration
Question 43Single Answer
Which road feature normally indicates where a vehicle should stop at a red light?
  1. A
    Stop line
  2. B
    Centre median
  3. C
    Road shoulder
  4. D
    Bus shelter
Question 44Single Answer
What should a driver do when a traffic police officer gives a lawful stop direction despite a green light?
  1. A
    Follow the green light
  2. B
    Follow the vehicle ahead
  3. C
    Ignore both directions
  4. D
    Obey the police officer
Question 45Single Answer
Which principle applies when traffic signals and a police officer's lawful directions conflict?
  1. A
    The signal always takes priority
  2. B
    The authorised officer's directions take priority
  3. C
    The fastest vehicle takes priority
  4. D
    The largest vehicle takes priority
Question 46Single Answer
Why should a driver reduce speed when approaching a signalised intersection?
  1. A
    To avoid using mirrors
  2. B
    To increase engine noise
  3. C
    To encourage overtaking
  4. D
    To allow time to observe signals, pedestrians and other vehicles
Question 47Single Answer
What should a driver do when the traffic signals at an intersection are not functioning?
  1. A
    Approach cautiously and follow signs, officer directions and applicable priority rules
  2. B
    Assume unlimited right of way
  3. C
    Accelerate through the intersection
  4. D
    Ignore vehicles from other roads
Question 48Single Answer
What is the main purpose of a separate right-turn signal phase?
  1. A
    To manage right-turning movements and reduce conflicts
  2. B
    To increase road speed
  3. C
    To control parking
  4. D
    To allow vehicles to travel in reverse
Question 49Single Answer
What should a driver do when a right-turn arrow is red but the straight-ahead signal is green?
  1. A
    Turn right immediately
  2. B
    Follow a vehicle turning right illegally
  3. C
    Stop in the opposite lane
  4. D
    Wait for permission to turn right
Question 50Single Answer
Which colour combination is standard for ordinary three-aspect road traffic signals?
  1. A
    Green, purple and yellow
  2. B
    Red, blue and white
  3. C
    Red, amber and green
  4. D
    Black, red and blue
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