MES SAE(E/M) Pattern Exam 1.0

MES SAE(E/M) Pattern Exam 1.0

Q1. ASTM stands for?

A. American Society for Testing and Materials

B. American Society for Tool Measurement

C. American Society for Tensile Material

D. American Society for Tensile Measurement

Right Answer : A

Q2. Cast iron is a product of _______

A. Bessemer converter

B. Cupola

C. Blast Furnace

D. Open hearth furnace

Right Answer : B

Q3. Which of the following induces fine-grain distribution in alloy steel?

A. Vanadium

B. Nickel

C. Titanium

D. Manganese

Right Answer : A

Q4. Which of the following form of iron is magnetic?

A. α

B. δ

C. γ

D. λ

Right Answer : A

Q5. What will be the shape of the pathline for a one-dimensional flow be like?

A. Parabolic

B. Straight line

C. Elliptical

D. Hyperbolic

Right Answer : B

Q6. The characteristic of Ideal fluid is-

A. Inviscid

B. Incompressible

C. Shear stress has a constant, non-zero value

D. Fluid velocity is uniform

Right Answer : D

Q7. The forces, whose lines of action are parallel to each other and act in the same directions, are known as?

A. coplaner concurrent forces

B. coplaner non-concurrent forces

C. like parallel forces

D. unlike parallel forces

Right Answer : C

Q8. For a self locking machine, the efficiency must be?

A. equal to 50%

B. less than 50%

C. greater than 50%

D. 100%

Right Answer : B

Q9. The friction experienced by a body. when in motion, is known as?

A. rolling friction

B. dynamic friction

C. limiting friction

D. static friction

Right Answer : B

Q10. The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is?

A. D + d

B. D - d

C. D x d

D. D / d

Right Answer : D

Q11. The motion of a wheel of a car is?

A. purely translation

B. purely rotational

C. combined translation and rotational

D. none of these

Right Answer : C

Q12. When a body is subjected to three mutually perpendicular stresses, of equal intensity, the ratio of direct stress to the corresponding volumetric strain is known as?

A. Young's modulus

B. modulus of rigidity

C. bulk modulus

D. Poisson's ratio

Right Answer : C

Q13. The centre of gravity of the volume of the liquid displaced is called?

A. centre of pressure

B. centre of buoyancy

C. metacentre

D. none of these

Right Answer : B

Q14. A pitot tube is used to measure the-

A. velocity of flow at the required point in a pipe

B. pressure difference between two points in a pipe

C. total pressure of liquid flowing in a pipe

D. discharge through a pipe

Right Answer : A

Q15. A flow whose streamline is represented by a straight line, is called .......... dimensional flow.

A. one

B. two

C. three

D. four

Right Answer : A

Q16. Carnot cycle has maximum efficiency for-

A. petrol engine

B. diesel engine

C. reversible engine

D. irreversible engine

Right Answer : C

Q17. An open cycle gas turbine works on-

A. Carnot cycle

B. Otto cycle

C. Joule's cycle

D. Stirling cycle

Right Answer : C

Q18. The isothermal and adiabatic processes are regarded as-

A. reversible process

B. irreversible process

C. reversible or irreversible process

D. none of these

Right Answer : A

Q19. The diameter of superheated tubes in a locomotive boiler is-

A. 13 mm

B. 31 mm

C. 130mm

D. 230 mm

Right Answer : C

Q20. The length of shell of a Locomotive boiler is-

A. 1m

B. 2m

C. 3m

D. 4m

Right Answer : D

Q21. Blading efficiency is also known as-

A. stage efficiency

B. diagram efficiency

C. nozzle efficiency

D. none of these

Right Answer : B

Q22. The basic requirement of a good combustion chamber is-

A. minimum turbulence

B. low compression ratio

C. high thermal efficiency and power output

D. low volumetric efficiency

Right Answer : C

Q23. A jet engine has-

A. no propeller

B. propeller in front

C. propeller at back

D. propeller on the top

Right Answer : A

Q24. The ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body. This statement is known as-

A. Wien's law

B. Stefan's law

C. Kirchhoff's law

D. Planck's law

Right Answer : C

Q25. The lathe spindles are usually made hollow and provided with-

A. internal taper

B. external taper

C. internal and external taper

D. no taper

Right Answer : A

Q26. Out of the following which is an insulating material?

A. Copper

B. Gold

C. Silver

D. Paper

Right Answer : D

Q27. Which of the following materials has a negative temperature co-efficient of resistance?

A. Copper

B. Carbon

C. Aluminum

D. Brass

Right Answer : B

Q28. A delta circuit has each element of value R/2. The equivalent elements of star circuit with be

A. R/6

B. R/3

C. 2R

D. 3R

Right Answer : A

Q29. The value of dielectric constant for vacuum is taken as-

A. zero

B. 1

C. 4

D. 10

Right Answer : B

Q30. For which of the following materials the saturation value is the highest?

A. Ferromagnetic materials

B. Paramagnetic materials

C. Diamagnetic materials

D. Ferrites

Right Answer : D

Q31. Conductivity is analogous to-

A. retentivity

B. resistivity

C. permeability

D. inductance

Right Answer : C

Q32. The period of a sine wave is 5 seconds. Its frequency is-

A. 20 Hz

B. 30 Hz

C. 40 Hz

D. 50 Hz

Right Answer : D

Q33. In a shunt generator the voltage build up is generally restricted by-

A. speed limitation

B. armature heating

C. insulation restrictions

D. saturation of iron

Right Answer : D

Q34. Which of the following components of a D.C. generator plays vital role for providing direct current of a DC generator?

A. Dummy coils

B. Commutator

C. Eye bolt

D. Equilizer rings

Right Answer : B

Q35. ln the D.C. motor the iron losses occur in-

A. the field

B. the armature

C. the brushes

D. the commutator

Right Answer : B

Q36. A transformer transforms-

A. voltage

B. current

C. current and voltage

D. power

Right Answer : D

Q37. Transformer rating are usually expressed in terms of-

A. kVA

B. kW

C. kWh

D. kVAR

Right Answer : A

Q38. Which of the following type of bearing is generally used to support the rotor of an induction motor?

A. Ball bearing

B. Needle bearing

C. Plummer block

D. Bush bearing

Right Answer : A

Q39. The starting winding of a single-phase motor is placed in-

A. armature

B. field

C. rotor

D. stator

Right Answer : D

Q40. The capacitors used in single-phase capacitor motors have no-

A. voltage rating

B. dielectric medium

C. polarity marking

D. definite value

Right Answer : C

Q41. Which motor is normally free from mechanical and magnetic vibrations?

A. Split phase motor

B. Universal motor

C. Hysteresis motor

D. Shaded pole motor

Right Answer : C

Q42. Generated e.m.f. for same field current and double speed will be-

A. same

B. double

C. less than double

D. more than double

Right Answer : B

Q43. The angle between the rotor poles and stator poles, in a synchronous motor, is known as-

A. power factor angle

B. torque angle

C. synchronizing angle

D. angle of retardation

Right Answer : B

Q44. The ignited or auxiliary anode in mercury arc rectifier is made of-

A. graphite

B. boron carbide

C. aluminium

D. copper

Right Answer : B

Q45. With which of the following are step-up substations associated-

A. Concentrated load

B. Consumer location

C. Distributors

D. Generating stations

Right Answer : D

Q46. The material commonly used for sheaths of underground cables is-

A. lead

B. rubber

C. copper

D. iron

Right Answer : A

Q47. The top most conductor in a high transmission line is-

A. earth conductor

B. R-phase conductor

C. Y-phase conductor

D. B-phase conductor

Right Answer : A

Q48. For which of the following protection from negative sequence currents is provided?

A. Generators

B. Motors

C. Transmission line

D. Transformers

Right Answer : A

Q49. The fuse rating is expressed in terms of-

A. current

B. voltage

C. VAR

D. kVA

Right Answer : A

Q50. Minimum arcing voltage will be least in case of-

A. silver

B. graphite

C. carbon

D. tungsten

Right Answer : A