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Model Question (with multiple choice answers) 2018

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This article tests your studies, that how much you have understood the subjects. We post the similar article on thermal engineering if you want to improve your thermal engineering subject you’ve to read that article to.

Click here Thermal Engineering Exam Model Questions (multiple choice questions) 2018.

This test contains 50 questions with 4 answers you have to choose the right answers and count your score. After completing the questions look at the answers and verify with yours. You can find the answers at last.

So let’s get started.

  1. In EDM process the workpiece is connected to
    1. Cathode
    2. Anode
    3. Earth
    4. None
  2. Which one of the following cannot be used as tool material in ECM?
    1. Aluminium
    2. Platinum
    3. Graphite
    4. Chromium
  3. For machining very small holes and cutting complex profiles in thin and hard materials like ceramics, ………. is used.
    1. LBM
    2. ECM
    3. EDM
    4. USM
  4. In sand moulding cope is the
    1. Uppermost part of the flask
    2. Bottommost part of the flask
    3. Middle part of the flask
    4. The innermost part of the flask
  5. “The heat and mechanical work are mutually convertible” is according to
    1. Zeroth law of thermodynamics
    2. First law of thermodynamics
    3. Second law of thermodynamics
    4. Gay-lussacs law
  6. The absolute pressure of a given mass of a perfect gas varies inversely as it volume when the temperature remains constant is the statement of
    1. Boyle’s law
    2. Charle’s law
    3. Joule’s law
    4. Gay-lussacs law
  7. The ratio of specific heat at constant pressure Cp and specific heat at constant volume Cv is
    1. Equal to one
    2. Less than one
    3. More than one
    4. Equal to one
  8. During compression process the internal energy
    1. Increases
    2. remaining constant
    3. Decreases
    4. None of these
  9. ………….. is an example of single slider crank chain
    1. Elliptical trammel
    2. Scotch-yoke mechanism
    3. Pendulum pump
    4. Oldham’s coupling
  10.  Combination of kinematic pairs joined in such way that no link moves relative to each other is known as
    1. Mechanism
    2. Structure
    3. Kinematic chain
    4. Inversion
  11. The size of the gear is generally specified by
    1. Pressure angle
    2. Circular pitch
    3. Diametral pitch
    4. Pitch circle diameter
  12.  A centrifugal tension in belts
    1. Increases power transmission
    2. Decreases power transmission
    3. First increases and then decreases power transmission
    4. Have no effect on power transmission
  13. The thermal stress induced in a body depends upon
    1. Modulus of elasticity
    2. Co-efficient of expansion
    3. Change in temperature
    4. All the above
  14. When the Poisson’s ratio is 1/4, the ratio of Bulk modulus (K) to Young’s modulus (E) is
    1. 1/3
    2. 2/3
    3. 3/2
    4. 1/2
  15. The ratio of lateral strain to linear is called as
    1. Poisson’s ratio
    2. Young’s modulus
    3. Rigidity modulus
    4. Bulk modulus
  16. Elongation of a circular rod of dia D, length L subjected to an axial pull of P is given by
    1. dl = PL/4 Π D²E
    2. dl = PL/2 Π D²E
    3. dl = 4PL/Π D²E
    4. dl = 2PL/Π D²E
  17. The nature of thermal stress induced due to the prevention of expansion of the rod is
    1. Tensile stress
    2. Compressive stress
    3. Shear stress
    4. No stress
  18. Bessemer converter is used for manufacturing
    1. Pig iron
    2. Cast iron
    3. Steel
    4. Wrought iron
  19. The pig iron contains about ……….. of carbon.
    1. 4 to 5%
    2. 0.2 to 0.4%
    3. 0.6 to 1.1%
    4. 1 to 2%
  20.  Which of the following type of steel is used for making chisels, hammers, saws and woodworking tools?
    1. Mild steel
    2. Medium carbon steel
    3. High carbon steel
    4. Stainless steel
  21. The metal having higher specific gravity among the following is
    1. ALUMINIUM
    2. Copper
    3. Zinc
    4. Lead
  22.  Which one of the following metal is used for galvanizing?
    1. Lead
    2. Zinc
    3. Copper
    4. Aluminium
  23.  The corner points enclosed in brackets in orthographic projections indicate that they are
    1. Visible corners
    2. Invisible corners
    3. Imaginary corners
    4. Corners touching HP
  24.  A tetrahedron has …………….. the number of triangular faces.
    1. 6
    2. 8
    3. 4
    4. 3
  25.  Surfaces area of A0 size sheet is
    1. One square meter
    2. One square centimetre
    3. One square decimeter
    4. None of the above
  26.  A point lying behind VP and above HO, In which quadrant does it lie?
    1. First
    2. Second
    3. Third
    4. fourth
  27.  Difficulties faced in intergroup collaboration are
    1. Resistance to change
    2. Communication problems
    3. Different opinions in groups
    4. All the above
  28.  The process of measuring the quality of a product or service in terms of an established standard is called
    1. Comparative study
    2. Process planning
    3. Inspection
    4. Scheduling
  29.  ISO stands for
    1. Indian standard Organization
    2. Indian Organization for standardization
    3. International Standards Organisation
    4. International Organisation for Standardization
  30. The size of the lathe is specified by
    1. Max job length in mm that may be held between centres
    2. The height of centres measured over the bed length
    3. Maximum diameter job that can be rotated over the bed ways
    4. All the above
  31. Tapering of the sides of the pattern in the direction parallel to which the pattern is drawn out from a mould is called as
    1. Shake
    2. Drag
    3. Draft
    4. Sprue
  32.  The colour marked on the surface of a pattern not to be machined is
    1. Black
    2. Green
    3. Red
    4. Blue
  33.  Flux is not used for welding
    1. Cast iron
    2. Brass
    3. Bronze
    4. Carbon steel
  34.  Which of the following process uses non-consumable electrodes?
    1. MIG welding
    2. TIG welding
    3. SIG welding
    4. Plasma arc welding
  35.  For welding non-ferrous metal like brass and bronze, the most suitable flame is
    1. Neutral
    2. Oxidising
    3. Carburising
    4. Reducing
  36.  The air standard efficiency of any air cycle is given by
    1. Heat supplied/work done
    2. Heat rejected/heat supplied
    3. Work done/heat supplied
    4. Work done/heat rejected
  37.  The efficiency of the dual cycle as compared to Otto and diesel cycles is
    1. More than Otto and diesel cycle
    2. Less than Otto and diesel cycle
    3. More than Otto cycle and Less than diesel cycle
    4. More than diesel cycle and less than Otto cycle
  38.  In a double acting reciprocating compressor the suction, compression, delivery of air takes place on
    1. The single side of the piston
    2. Both sides of the piston
    3. Both (1) and (2)
    4. None of above
  39.  The number of working strokes/min for a four-stroke cycle engine is ………….. the speed of the engine RPM.
    1. Equals to
    2. Twice
    3. Four times
    4. Half
  40.  The difference between total depth and working depth in a gear tooth is
    1. Pitch
    2. Clearance
    3. Addendum
    4. Dedendum
  41. If the net dynamic force acting on the shaft is equal to zero. then the balancing is called as
    1. Static balancing
    2. Dynamic balancing
    3. Complete balancing
    4. All the above
  42.  When the motion of the follower takes place at an axis away from the axis of the cam, the follower is called
    1. Radial follower
    2. Off-set follower
    3. Both (1) and (2)
    4. None of the above
  43.  The angle between the direction of follower motion and normal to pitch curve of the cam is called as
    1. Pitch angle
    2. Base angle
    3. Pressure angle
    4. Trace angle
  44.  The relation between Young’s modulus (E). Shear modulus (3) and Poisson’s ratio (1/m) is given by
    1. C = mE / 3 (m+1)
    2. C = mE / 3 (m-1)
    3. C = mE / 2 (m-1)
    4. C = mE / 2(m+1)
  45.  The deformation per unit length is called as
    1. Tensile stress
    2. Compressive stress
    3. Shear strain
    4. Strain
  46.  The three moduli of material are related by the equation
    1. E = 9KC / (3K+C)
    2. E = 9KC / (2C+K)
    3. E = 9KC / (2K+C)
    4. None of the above
  47.  The shear force for a simply supported beam carrying a UDL
    1. Is uniform
    2. Varies parabolically
    3. Varies linearly
    4. Is zero
  48.  The purpose of heat treatment of steel is/are
    1. To change the structure of steel
    2. To increase the surface hardness
    3. To increase resistance to heat and corrosion
    4. All the above
  49.  The hardening is followed by …………. process.
    1. Tempering
    2. Carburising
    3. Annealing
    4. Nitriding
  50.  The addition of …………. improves the corrosion resistance of steel.
    1. Chromium
    2. Carbon
    3. Sulphur
    4. Phosphorus

Answers:

(1) b. (2) d. (3) a. (4) a. (5) b. (6) a. (7) c. (8) a. (9) c. (10) b. (11) d. (12) d. (13) d. (14) b. (15) a. (16) c. (17) b. (18) c. (19) a. (20) c. (21) d. (22) b. (23) b. (24) c. (25)a. (26) b. (27) d. (28) c. (29) d. (30) d. (31) c. (32) a. (33) d. (34) b. (35) b. (36) c. (37) d. (38) b. (39) d. (40) b. (41) a. (42) b. (43) c. (44) d. (45) d. (46) a. (47) c. (48) d. (49) a. (50) a.

 

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Thermal Engineering Exam Model Questions (multiple choice quetions) 2018.

About Saif M

Saif M. is a Mechanical Engineer by profession. He completed his engineering studies in 2014 and is currently working in a large firm as Mechanical Engineer. He is also an author and editor at www.theengineerspost.com

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