Placement Papers: Atlas Corporation Placement Paper Pattern
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Examrace Placement Series prepares you for the toughest placement exams to top companies.
STEP I: WRITTEN TEST: 60 QUESTIONS 1 HOUR ELIMINATION ROUND
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Hygrometry deals with (ans. Moisture content in air)
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1 kg-m = 9.81 J
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Relation between gauge, abs atm pressures
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Work-study deals with
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Time study deals with
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Expand MIS-Management Information System
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CPM and PERT deals with (ans. Determining the status of the project)
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To avoid cavitation in a centrifugal pump
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Inlet pressure should be high (ans)
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Discharge pressure should be high
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Expand NTP- (Normal temperature and press)
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Dalton's law of pressure (Total pressure equals sum of partial pressures)
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As per Avogadro's hypothesis (Molecular wt of all gases occupy the same volume under same conditions of temp and pressure)
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Use of intercooler- (to reduce work input)
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Use of after cooler- (to reduce volume of receiver)
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water hammer occurs (due to sudden obstruction in flow)
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ABC analysis deals with
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Main objective behind plant layout is
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to avoid back tracking
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To minimize the space occupied
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Efficiency of diesel engine as compared to petrol engine under same rated load (high)
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Which of the following is not present in a CI engine
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Fuel injector
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Carburetor (ans)
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Fuel pump
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Which of the following is not present in a SI engine
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Spark plug
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Carburetor
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Fuel injector (ans)
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pour point is (min temp at which a liquid flows at set condition)
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Zeroth law of thermodynamics
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In value engg value means____
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second law of thermodynamics deals with (ans: Entropy)
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Mach no deals with____
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Output = 9kW, Input = 30kW, Efficiency = (Ans: 30%)?
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Overall hear transfer co-eff. Present in
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Conduction
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Convection
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Conduction and convection
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All modes of heat transfer.
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Orifice Definition-provision for flow of liquid with regulation
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Break even point (ans: No profit and no loss).
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If a block of ice floating in a tub of water and gets melted then what will be the level of water a. Falls down b. Rises c. Remains the same
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Compressed air coming out of a punctured football
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Remains at the same temperature
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Becomes hotter
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Becomes cooler
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Heat transfer takes place as per
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Second law
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First law
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Zeroth law
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Choking in compressor means-fixed mass flow rate independent of the pressure ratio (ans)
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Formation of frost in refrigerator
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Can be prevented if design is proper
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Heat transfer becomes more
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Heat loss
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Immaterial (ans)
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Supercharging is the process of (increasing the density of the inlet charge)
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How will you find the unburnt mixture in exhaust gas
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Analyzing CO
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Analyzing Oxygen
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Compression ratio is the ratio of
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Delivery pr. To inlet pr.
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Inlet pr to delivery pr.
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Stroke volume to clearance volume
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To reduce moisture troubles the compressor main should be
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Vertical
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Horizontal
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Slanting
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Critical activity is
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Zero float
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High float
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Low float
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Cash discounts is based on
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Sold on credit
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Bargaining capacity of the seller
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Payment of instant cash
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1 kW-hr = 3600 kJ.
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which process is more effective for compression
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isothermal (ans)
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adiabatic
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polytrophic
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What did W. H. Taylor do?
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An adiabatic compression is one in which (no heat enters or leaves the system)
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What happens if the refrigerator doors are kept open-The room will be warmed up gradually (ans)
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In which device, the temp of the refrigerant is the lowest
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Compressor
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Condenser
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Expansion valve
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Evaporator
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In break even analysis, profit occurs when (sales revenue >total cost)
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A material piece weighs 2.5 kg in air and 3 kg, when immersed in water, then sp. Gr is
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A body of sp. Gr 7 is immersed in mercury of sp. Gr 13.6. What percent of the body will be immersed in water (ans. 0.515)?
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1 tonne of refrigeration is-The cooling effect produced when melting one tonne of ice
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Unit of power (Watt)
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What is the use of the reverse flow of air in compressor
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Cleaning the dust particles settled
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Velocity of the air flow increases
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pressure increases
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Rota meter Flow measurement
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If we use petrol in diesel engine (lot of fuel will remain unburnt)
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The intake of air in an air compressor can be had from
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An area nearby coal yard
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An area nearby a cooling tower
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A room in which conditioned air is maintained at 20C
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Atm air maintained at 1 C
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