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Objective Questions

Latest APPSC AMVI Exam Question (Objective Questions), MCQ in English

Subjects : Automobile Engineering (Diploma Standard)

Question Bank APPSC Assistant Motor Vehicle Inspector Exam Paper II - English
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Automobile Engineering (Diploma Standard)

Question 1Single Answer
A thermodynamic system is defined as:
  1. A
    Only a solid body
  2. B
    A fixed quantity of matter or region selected for study
  3. C
    Only a liquid body
  4. D
    Only the atmosphere
Question 2Single Answer
A closed thermodynamic system permits transfer of:
  1. A
    Mass only
  2. B
    Neither mass nor energy
  3. C
    Both mass and energy
  4. D
    Energy only
Question 3Single Answer
An open thermodynamic system permits transfer of:
  1. A
    Energy only
  2. B
    Mass only
  3. C
    Both mass and energy
  4. D
    Neither mass nor energy
Question 4Single Answer
An isolated system exchanges with its surroundings:
  1. A
    Neither mass nor energy
  2. B
    Work only
  3. C
    Mass only
  4. D
    Heat only
Question 5Single Answer
Which is an example of an open system?
  1. A
    Sealed pressure vessel
  2. B
    Thermos flask
  3. C
    Steam turbine
  4. D
    Closed gas cylinder
Question 6Single Answer
Which is an example of a closed system?
  1. A
    Compressor
  2. B
    Gas enclosed in a piston-cylinder arrangement
  3. C
    Turbine
  4. D
    Nozzle
Question 7Single Answer
Pressure is a:
  1. A
    Path function
  2. B
    Thermodynamic property
  3. C
    Process only
  4. D
    Cycle
Question 8Single Answer
Heat is considered a:
  1. A
    Path function
  2. B
    State property
  3. C
    Point function
  4. D
    Intensive property
Question 9Single Answer
Work in thermodynamics is a:
  1. A
    Property
  2. B
    Path function
  3. C
    State variable
  4. D
    Intensive property
Question 10Single Answer
Temperature is a:
  1. A
    Extensive property
  2. B
    Process quantity
  3. C
    Path function
  4. D
    Intensive property
Question 11Single Answer
Volume is normally classified as a:
  1. A
    Intensive property
  2. B
    Path function
  3. C
    Extensive property
  4. D
    Dimensionless quantity
Question 12Single Answer
Specific volume is a:
  1. A
    Intensive property
  2. B
    Extensive property
  3. C
    Path function
  4. D
    Process variable
Question 13Single Answer
Internal energy is a:
  1. A
    Point function
  2. B
    Path function
  3. C
    Process function
  4. D
    Dimensionless quantity
Question 14Single Answer
A thermodynamic cycle is completed when the system:
  1. A
    Reaches zero pressure
  2. B
    Stops transferring heat
  3. C
    Reaches maximum temperature
  4. D
    Returns to its initial state
Question 15Single Answer
Thermodynamic equilibrium requires:
  1. A
    Thermal equilibrium only
  2. B
    Thermal, mechanical and chemical equilibrium
  3. C
    Chemical equilibrium only
  4. D
    Mechanical equilibrium only
Question 16Single Answer
Zeroth law of thermodynamics forms the basis for measurement of:
  1. A
    Pressure
  2. B
    Temperature
  3. C
    Work
  4. D
    Volume
Question 17Single Answer
According to the Zeroth law, if bodies A and B are separately in thermal equilibrium with body C, then A and B are:
  1. A
    At different pressures
  2. B
    Of equal volume
  3. C
    Chemically identical
  4. D
    In thermal equilibrium with each other
Question 18Single Answer
The first law of thermodynamics is based on conservation of:
  1. A
    Momentum
  2. B
    Mass only
  3. C
    Entropy
  4. D
    Energy
Question 19Single Answer
For a thermodynamic cycle, change in internal energy is:
  1. A
    Positive
  2. B
    Negative
  3. C
    Infinite
  4. D
    Zero
Question 20Single Answer
For a closed system, the first law can be written as:
  1. A
    Q = Ξ”U + W
  2. B
    Q = W βˆ’ Ξ”U
  3. C
    W = Ξ”U βˆ’ Q
  4. D
    Ξ”U = Q + W always
Question 21Single Answer
Enthalpy is defined as:
  1. A
    H = U βˆ’ PV
  2. B
    H = U/PV
  3. C
    H = PV βˆ’ U
  4. D
    H = U + PV
Question 22Single Answer
The SI unit of enthalpy is:
  1. A
    Watt
  2. B
    Pascal
  3. C
    Newton
  4. D
    Joule
Question 23Single Answer
Specific enthalpy is normally expressed in:
  1. A
    kW/kg
  2. B
    kJ/kg
  3. C
    N/kg
  4. D
    Pa/kg
Question 24Single Answer
The second law of thermodynamics introduces the concept of:
  1. A
    Entropy
  2. B
    Mass
  3. C
    Velocity
  4. D
    Momentum
Question 25Single Answer
Entropy of an isolated system during an irreversible process:
  1. A
    Decreases
  2. B
    Remains zero
  3. C
    Becomes negative
  4. D
    Increases
Question 26Single Answer
Kelvin-Planck statement is associated with the:
  1. A
    Zeroth law
  2. B
    Second law
  3. C
    First law
  4. D
    Boyle's law
Question 27Single Answer
Clausius statement states that heat cannot, by itself, flow from:
  1. A
    Hot body to cold body
  2. B
    Cold body to hot body
  3. C
    Solid to liquid
  4. D
    Liquid to gas
Question 28Single Answer
A perpetual motion machine of the first kind violates the:
  1. A
    Zeroth law
  2. B
    Second law
  3. C
    First law
  4. D
    Third law
Question 29Single Answer
A perpetual motion machine of the second kind violates the:
  1. A
    First law
  2. B
    Charles' law
  3. C
    Boyle's law
  4. D
    Second law
Question 30Single Answer
A pure substance has:
  1. A
    Always one phase
  2. B
    Uniform chemical composition throughout
  3. C
    Always solid form
  4. D
    Zero internal energy
Question 31Single Answer
Water existing as liquid and vapor can still be considered a:
  1. A
    Mixture of pure substances
  2. B
    Solid solution
  3. C
    Non-equilibrium system only
  4. D
    Pure substance
Question 32Single Answer
The temperature at which a liquid starts boiling at a specified pressure is called:
  1. A
    Critical temperature
  2. B
    Triple temperature
  3. C
    Dew point only
  4. D
    Saturation temperature
Question 33Single Answer
Saturation pressure is the pressure corresponding to:
  1. A
    Maximum entropy
  2. B
    Maximum volume
  3. C
    Zero temperature
  4. D
    A given saturation temperature
Question 34Single Answer
Dry saturated steam contains:
  1. A
    Liquid droplets only
  2. B
    Only saturated vapor
  3. C
    Superheated vapor
  4. D
    Subcooled water
Question 35Single Answer
Wet steam contains:
  1. A
    Ice and water only
  2. B
    Superheated vapor only
  3. C
    Liquid water only
  4. D
    Saturated vapor and liquid droplets
Question 36Single Answer
Dryness fraction of saturated liquid is:
  1. A
    1
  2. B
    0
  3. C
    2
  4. D
    Infinite
Question 37Single Answer
Steam heated above its saturation temperature at a given pressure becomes:
  1. A
    Superheated steam
  2. B
    Wet steam
  3. C
    Saturated liquid
  4. D
    Compressed water only
Question 38Single Answer
The critical point is the state at which:
  1. A
    Solid and liquid become identical
  2. B
    Liquid and vapor phases become indistinguishable
  3. C
    Pressure becomes zero
  4. D
    Enthalpy becomes zero
Question 39Single Answer
At the triple point, a substance exists simultaneously as:
  1. A
    Liquid and vapor only
  2. B
    Solid and liquid only
  3. C
    Solid, liquid and vapor
  4. D
    Plasma only
Question 40Single Answer
A Mollier diagram is a plot of:
  1. A
    Pressure versus volume
  2. B
    Temperature versus entropy
  3. C
    Pressure versus temperature
  4. D
    Enthalpy versus entropy
Question 41Single Answer
The Mollier diagram is particularly useful in analyzing:
  1. A
    Electrical circuits
  2. B
    Gear trains
  3. C
    Shaft design
  4. D
    Steam processes
Question 42Single Answer
In an h-s diagram, the vertical coordinate generally represents:
  1. A
    Entropy
  2. B
    Volume
  3. C
    Pressure
  4. D
    Enthalpy
Question 43Single Answer
The Rankine cycle is an ideal cycle used for:
  1. A
    Gasoline engines
  2. B
    Steam power plants
  3. C
    Diesel engines
  4. D
    Refrigerators only
Question 44Single Answer
The main components of a simple Rankine cycle include:
  1. A
    Carburetor, cylinder and silencer
  2. B
    Boiler, turbine, condenser and pump
  3. C
    Gearbox, clutch and differential
  4. D
    Battery, starter and alternator
Question 45Single Answer
In a Rankine cycle, heat is supplied in the:
  1. A
    Condenser
  2. B
    Pump
  3. C
    Boiler
  4. D
    Cooling tower only
Question 46Single Answer
In the Rankine cycle, useful work is mainly produced by the:
  1. A
    Turbine
  2. B
    Boiler
  3. C
    Pump
  4. D
    Condenser
Question 47Single Answer
Heat rejection in a Rankine cycle occurs mainly in the:
  1. A
    Boiler
  2. B
    Turbine
  3. C
    Pump
  4. D
    Condenser
Question 48Single Answer
The pump in a Rankine cycle handles:
  1. A
    Steam only
  2. B
    Exhaust gas
  3. C
    Air only
  4. D
    Liquid water
Question 49Single Answer
Pump work in a Rankine cycle is generally:
  1. A
    Much larger than turbine work
  2. B
    Equal to turbine work
  3. C
    Smaller than turbine work
  4. D
    Infinite
Question 50Single Answer
Increasing boiler pressure generally tends to:
  1. A
    Make pump work zero
  2. B
    Eliminate turbine work
  3. C
    Eliminate condenser
  4. D
    Improve Rankine-cycle efficiency
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