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  • Thermax Placement Papers For Mech & Civil Engineers

    Feather

    Member

    Updated: Oct 23, 2024
    Views: 1.5K
    Thermax is an Indian energy and environment engineering company based in India and in Britain. It manufactures, boilers, vapour absorption machines, offers water and waste solutions and installs captive power projects.
    Thermax is also a historic brand name of boilers, and the name of a former toughened-glass company.

    Here are a few questions that were asked in campus placements -


    1. In which type of Welding chemical reaction takes place -
    Resistance
    Thermit
    Forge
    Gas

    2. Resistance to fatigue strength is measured by
    Tensile Test
    Shear Test
    Endurance Limit

    3. A fly wheel starts from rest and accelarates unifomly and reaches 25 rpm in 3 seconds.What will be the angular velocity(in rpm) after 10 seconds?
    20
    25
    45
    50

    4.Radio active materials emmit -
    alpha
    beta
    Gamma
    All the above

    5. Expansion valves are used in pipes carrying

    Water
    Steam
    Viscous fluid
    Air at high pressure

    6. ON/OFF Control application Valve -
    Ball valve
    Globe valve
    Needle valve
    Butter fly valve

    7.Thermal Conductivity of Solids with increase of temp
    Increases
    Decrease
    Increases then Decrease
    Unpredictable

    8. Idling mixture in Petrol Engines
    Rich
    Lean
    Variable

    9. Radiator is made up of =
    Brass
    Steel
    Plastic
    Cast Iron

    10. Hysterises loss is least affected by -
    Temperature
    Frequency
    Weight
    Density

    11. Compiler is used for
    High level to the Language understandable by machines
    To convert the programmes from Digital to Analog form
    To compile the instructions in registers
    Both B & C

    12. Heat treatment of steel changes
    Physical
    Chemical
    Mechanical properties

    13. Fusible plug is used for
    To control Steam Temperature
    To put off the fire when the water level in the boiler falls below the alarming limt
    To avoid Explosion

    14. Effect of Cavitation in Turbines -
    Noise and Vibration
    Efficiency
    Decrease in life of blades
    All the above

    15. The correct relation between Gauge pressure, Absolute pressure, Atmospheric pressure
    (4 choices)

    16. Which of the following has the maximum Head
    33 inches Hg
    756 mm of Hg
    31.6 m of water(Not clear)
    1.013 kg/sq.cm

    17. Manometer is effective for
    High pressure
    Very High pressure
    Low pressure
    None of the above

    18.Elasticity of a fluid is measured by
    Modulus of Elasticity
    Rigidity Modulus
    Bulk Modulus
    None of the above

    19. Where the bending stress is maximum for I Section Beam
    Nutral axis
    At the joint of wedge and flank
    wher the shear stress is maximum
    Oute most of the fibres

    20. The oil of sp. gravity 0.9 and water are kept in two identical vessels,Hydro static Pressure at bottom of oil will be
    More than pressure of the water at the bottom
    Less than pressure of the water at the top
    Same
    Insufficient data

    21. Cp / Cv of Gas at varying temperatures
    Constant
    Increases
    Decreases(With some conditions)

    22.Compression ratio of the C.I. Engine
    8 to 10
    10 to 15
    16 to 20
    None

    23.The sate of the refrigernt in the vapour compression cycle before throttling
    Wet
    Dry

    24. Feuler gauges are used to
    Measure the clearence

    25. High moisture content in the last stage of tubine will cause
    Corrosion
    Low thermal efficieny
    Low Blade life
    All the above

    26. What alloying material imparts corrossive resistance properties of steel
    Ni-Cr
    V,Cr
    Cr

    27. Chip breakers are used for
    To permit small chips
    to increase tool life
    Safety

    28. Jigs are used for
    turning
    milling
    drilling
    grinding

    29. In coal refineries magnets are used to seperate
    dust
    iron particles
    Sand
    All the above

    30.statistical processing is done for
    improve the quality
    maintain the quality
    both 1 and 2
    to increase the profit

    31.What will happen to the specific volume of the water when it is heated from 0 degree c
    Increases
    Decreases
    Remain Constant

    32.Reason for slipping when we walk on the Ice
    Ice suface is smooth
    When we apply pressure on the Ice it gets melted

    33. When the Ice cubes present in the glass of water get melted what will happen to the level of water -
    Increases
    Decreases
    Doesn't change

    34. First law of Thermodynamics deals with
    Conservation of Mass
    Conservation of Momentum
    Conservation of Energy
    Conservation of Heat

    35.Tonnage of 165 domestic refrigerator -
    <options>

    36. Thermal Conductivity of Water with increase in temp
    Incrases with temp
    Decreases then increases
    Increases then Decreases
    Does not change

    37. Purpose of conducting Tensile Test
    Ductility

    38. Which structure can be viewed by Naked Eye?
    Micro Structure
    Grain
    Macro
    Atomic

    Section 2 - Data Sufficiency

    1. If x=y^2 then x^2-y=?
    a) x + y = 2
    b) x = 4

    2. Two find an average speed of the two men

    a) Speed of one man
    b) Distance traveled by another man

    3. If K-1 is a square and K<17, what is K?

    a) K is even
    b) K is odd


    4. What is the area of the unoccupied by the triangle if the triangle is completely inside the square?

    a) A triangle compatibility inside the square
    b) Area relation

    5. There are 12 marbles, Red, Blue & Green. Find the no. of Red marbles?

    a) No. of red marbles is greater than the Blue and Green
    b) No. of Blue marbles are twice as that of the Green marbles

    6. what is the average speed of A & B

    a) A travels 4 miles / hour more than B
    b) A travels 60 meters

    7. What is the % of X in Y

    a) X=Y/4
    b) X + Y = 200

    8. In an election P, Q, R are the contestants. They got the votes as follows. Can you find out who got the majority votes?

    a) P= (4/3)* P
    b) Q= (2/3)*R

    9. How many times is the calorific value of Bread greater than the apple?

    a) Bread is ½ times more than Banana
    b) Banana is 3 times more than Apple

    10. How many Brothers does Mohan have

    a) Mohan’s sisters are twice as Brothers
    b) Mohan’s uncle has one Nephew

    11. Did the price per unit rise during 1976 from 1975

    a) More units were sold in 1976 than 1975
    b) There was 5% decrease in 1976 than 1975

    12. Amar, Akbar, John & King have joined one Team each. Who joined football?

    a) Not more than three joined One game
    b) Amar & Akbar joined Base Ball, King joined Basket ball

    13. The profit of one company is increased by 20% for every year.

    a) Production drops by 5%

    14. One man got Birthday gift.

    a) He got twice the amount of gift on that Birthday
    b) No of gifts received is 4 fewer than he received on third birthday
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  • Feather

    MemberSep 11, 2012

    THERMAX (I) LTD PLACEMENT PAPER - 2

    Three sections + GD + Interview

    I section : 40 Q in 5 mins --- very easy -mirror image ques. (no neg marks)
    II section : 20 Q in 20 mins - easy data sufficiency ques - neg marks(-1/5)
    III section : 40Q in 20 mins-Technical questions-(neg marks -1/5) all obj


    GD Topics : child labour, liberalization etc..

    Technical MECH Questions

    1. Heat is a substance of

    a. internal energy b. thermal conductance c. enthalpy d.entropy

    2. calorie is a unit of

    a. specific heat b.quantity of heat

    3. Heat supplied at 30000 J/s and output of 90kw. What is the thermal efficiency of the heat engine?

    a. 30% b.33% c.40% d.50% e.50%

    4. Welded joint's strength is checked by


    5. Grove is given in which welding

    a. fillet b. butt c.lap d.both fillet and lap


    6. when carbon is increased in steel

    a.ductility is increased

    7. corrosion resistence of steel increases by

    a. Cr,W,Va,Mo b.Cr c.Cr,Ni

    8. Definition of toughness

    Ans : Maximum absorption of energy

    9. Unique property of cast iron

    Ans : damping property

    10. Toughness is measured by]

    ans : impact

    11. If torque is increased, speed

    ans : decreases linearly

    12. If the diameter of the centrifugal pump is doubled, what will happen ?

    .output flow per 4 times b. speed will be doubled

    13. The ladder will not be in equilibrium if

    a.floor surface is smooth and wall surface is rough

    b.floor surface is rough and wall surface is rough]

    c.floor surface is smooth and wall surface is smooth

    d. floor surface is rough and wall surface is smooth

    14. pressure vessels are made by

    a.welding(ans) b.rivet c.both d.none of the above

    15.Tolerance is specified for

    ans : product cannot be lproduced accurately

    16. for close transmission which fit is used:

    a.transition b. interference c. clearance d. none of the above

    17. washer is used for :

    a. to avoid wear(ans) b.to absorb vibration c.to protect bearing surface

    18. a carbon bar is of length 10m. its temp increased from 30C to 330C. what is the expansion

    a.300 b.30 c.10 d.100
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  • ABILASH CV

    MemberApr 12, 2016

    will thermax conduct interview through phone call
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  • Viswas singh

    MemberMar 9, 2018

    ABILASH CV
    will thermax conduct interview through phone call
    Noo
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  • Anjali Kulkarni

    MemberMar 9, 2018

    When will be openings in Thermax and how cloud I get the information about it.
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