MES SAE(E/M) Pattern Exam 0.4
MES SAE(E/M) Pattern Exam 0.4
Q1. An economizer ...... the steam rising capacity of a boiler.
A. increases
B. decreases
C. has no effect
D. none of those
Right Answer : A
Q2. The efficiency of a modern boiler using coal and heat recovery equipment is about-
A. 25 to 30%
B. 40 to 50%
C. 65 to 70%
D. 85 to 90%
Right Answer : D
Q3. LDC means -
A. Loud Despatch Center
B. Load Distribution Center
C. Load Despatch Center
D. Load Development Center
Right Answer : C
Q4. The artificial draught normally is designed to produce -
A. less smoke
B. more draught
C. less chimney gas temperature
D. all of the above
Right Answer : D
Q5. Compounding of steam turbine is done for -
A. reducing the work done
B. increasing the rotor speed
C. reducing the rotor speed
D. balancing the turbine
Right Answer : C
Q6. Reheat factor in steam turbines depends on -
A. exit pressure only
B. stage efficiency only
C. initial pressures and temperature only
D. all of the above
Right Answer : C
Q7. Primary air is that air which is used to -
A. reduce the flame length
B. increase the flame length
C. transport and dry the coal
D. provide air around burners for getting optimum combustion
Right Answer : C
Q8. Steam turbines commonly used in steam power station are -
A. condensing type
B. non-condensing type
C. all of the above
D. none of the above
Right Answer : A
Q9. Belt conveyer can be used to transport coal at inclinations up to -
A. 30°
B. 60°
C. 80°
D. 90°
Right Answer : A
Q10. A steam power station requires space -
A. equal to diesel power station
B. more than diesel power station
C. less than diesel power station
D. none of the above
Right Answer : B
Q11. Artificial draught is produced by -
A. induced fan
B. forced fan
C. induced and forced fan
D. all of the above
Right Answer : D
Q12. Economizers improve boiler efficiency by
A. 1 to 5%
B. 4 to 10%
C. 10 to 12%
D. 8 to 12%
Right Answer : B
Q13. The amount of air which is supplied for complete combustion is called -
A. primary air
B. secondary air
C. tertiary air
D. none of the above
Right Answer : B
Q14. For Parson's reaction steam turbine, degree of reaction is -
A. 75%
B. 100%
C. 50%
D. 60%
Right Answer : C
Q15. Bucket elevators are used for-
A. carrying coal in horizontal direction
B. carrying coal in vertical direction
C. carrying coal in any direction
D. none of the above
Right Answer : B
Q16. Pipes carrying steam are generally made up of -
A. steel
B. cast iron
C. copper
D. aluminum
Right Answer : A
Q17. To check the perfect threading in hole following gauge is used-
A. Screw pitch gauge
B. Radius gauge
C. Centre gauge
D. Screw plug gauge
Right Answer : D
Q18. Radius gauge is used to check-
A. Internal and external radius
B. Only internal radius
C. Only external radius
D. Irregular curve
Right Answer : A
Q19. What is the cross-sectional size of a slip gauge?
A. 42 mm × 9 mm
B. 22 mm × 9 mm
C. 32 mm × 9 mm
D. 52 mm × 9 mm
Right Answer : C
Q20. Wear allowance is provided on-
A. Go gauge
B. No go gauge
C. Both Go and No Go gauge
D. When both are combined in one gauge
Right Answer : A
Q21. The term “Allowance” in limits and fits is usually referred to-
A. Minimum clearance between shaft and hole
B. Maximum clearance between shaft and hole
C. A difference of tolerance of hole and shaft
D. Difference between maximum size and minimum size of the hole
Right Answer : A
Q22. _______ is an example of transition fit.
A. Running fit
B. Expansion fit
C. Wringing fit
D. Shrinkage fit
Right Answer : C
Q23. ‘GO’ and ‘NO GO’ gauge is a type of -
A. Limit gauge
B. Ring gauge
C. Slip gauge
D. Plug gauge
Right Answer : A
Q24. Ratchet is the part of-
A. sine bar
B. dial bevel protractor
C. clinometer
D. micrometer
Right Answer : D
Q25. 20 H7-g6 is a-
A. interference fit
B. transition fit
C. clearance fit
D. nonstandard fit
Right Answer : C
Q26. The accuracy of micrometers, calipers, dial indicators can be checked by a-
A. feeler gauge
B. ring gauge
C. slip gauge
D. plug gauge
Right Answer : C
Q27. Which method is used to start a ceiling fan?
A. Split phase starting
B. Capacitor starting
C. Shaded pole starting
D. Repulsion starting
Right Answer : B
Q28. The pressure at the outlet of a refrigerant compressor is called-
A. Suction pressure
B. Discharge pressure
C. Critical pressure
D. Back pressure
Right Answer : B
Q29. In a microwave oven, materials are heated by-
A. Conduction
B. Radiation
C. Induction
D. Convection
Right Answer : B
Q30. Suppose, double the voltage in a simple de circuit and cut the resistance in half, then the current will-
A. Become four times as great
B. Become twice as great
C. Stay the same as it was before
D. Become half as great
Right Answer : A
Q31. If four resistors are connected in series, each with a value of 4 kohm, the total resistance is -
A. 8ΚΩ
B. 16ΚΩ
C. 23ΚΩ
D. 1Ω
Right Answer : B
Q32. The resistance of each arm of Wheatstone bridge is 10 Ω. A resistance of 10Ω is connected in series with the galvanometer. The equivalent resistance across the battery will be-
A. 40 Ω
B. 20 Ω
C. 30 Ω
D. 10 Ω
Right Answer : D
Q33. What happens if an electric bulb rated at 220V is connected to 220V, 5 Hz ac source? The bulb-
A. does not glow
B. fuses
C. glows continuously
D. glows intermittently
Right Answer : D
Q34. Permeability in a magnetic circuit corresponds to ----- in electric circuit.
A. conductivity
B. conductance
C. resistivity
D. resistance
Right Answer : A
Q35. Kirchhoff's current law is applicable to only-
A. junctions
B. closed loop
C. electronic circuit
D. electrical circuit
Right Answer : A
Q36. Kirchhoff's voltage law deals with—
A. Conversation of energy
B. Conversation of momentum
C. Conversation of charge
D. Conversation of angular momentum
Right Answer : A
Q37. An external resistance R is connected to a cell of internal resistance r. The maximum current flows in the external resistance when-
A. R
B. R=r
C. R>r
D. None of the above
Right Answer : B
Q38. A 40W bulb is connected in parallel with room heater. What will happen if we turn off bulb?
A. Heater output will increase
B. Heater output will decrease
C. Heater output will remains same
D. None of the above
Right Answer : C
Q39. KCL is the conversion of-
A. voltage
B. current
C. energy
D. charge
Right Answer : D
Q40. Ohm's Law is-
A. P = VI
B. V = IR
C. I^2R
D. P=V/R
Right Answer : B
Q41. The power factor of a purely resistive circuit is-
A. Unity
B. Lagging
C. Zero
D. Leading
Right Answer : A
Q42. A constant voltage is applied across the ends of a conductor. The heat produced is to ---- length.
A. directly proportional
B. equal
C. inversely proportional
D. square
Right Answer : C
Q43. Kirchhoff's second law is based on law of conservation of-
A. charge
B. energy
C. momentum
D. mass
Right Answer : B
Q44. Lamps used for house lighting are connected in-
A. series
B. mixed grouping
C. parallel
D. crossed
Right Answer : C
Q45. The frequency of an alternating current is-
A. The speed with which the alternator runs
B. The number of cycles generated in one minute
C. The number of waves passing through a point in one second
D. The number of electrons passing through a point in one second
Right Answer : C
Q46. Magnitude of current at resonance in R-L-C circuit-
A. Depends upon the magnitude of R
B. Depends upon the magnitude of L
C. Depends upon the magnitude of C
D. Depends upon the magnitude of R, L and C
Right Answer : A
Q47. The safest value of current the human body can carry for more than 3 second is-
A. 4mA
B. 9mA
C. 15mA
D. 25mA
Right Answer : B
Q48. The double energy transient occur in the-
A. R-L circuit
B. R-C circuit
C. R-L-C circuit
D. Purely inductive circuit
Right Answer : C
Q49. The frequency of domestic power supply in Bangladesh is -
A. 200Hz
B. 60Hz
C. 100Hz
D. 50Hz
Right Answer : D
Q50. In any A.C. circuit always-
A. Apparent power is more than actual power
B. Reactive power is more than apparent power
C. Actual power is more than reactive power
D. Reactive power is more than actual power
Right Answer : A
