Related Questions

The steam engine provided on steam locomotives is
A Single acting condensing type
B Single acting non-condensing type
C Double acting condensing type
D Double acting non-condensing type
The pulsating d.c. applied to power amplifier causes ___________
A Burning of transistor
B Hum in the circuit
C Excessive forward voltage
D None of the above
Which of the following braking systems is used on steam locomotives?
A Hydraulic system
B Pneumatic system
C Vacuum system
D None of the above
The horsepower of steam locomotives is
A Up to 1500
B 1500 to 2000
C 2000 to 3000
D 3000 to 4000
The slipping of driving wheels of locomotives on the rail surface causes
A wheel burns
B hogging of rails
C scabbing of rails
D corrugation of rails
Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage?
A The voltage remains at one polarity and at a steady level
B The voltage remains at one polarity but changes value periodically
C The voltage causes current to flow in two directions at the same time
D The voltage reverses polarity periodically
E None of the above
Which of the following is most prone to pulsating discharge flow ?
A Centrifugal pump
B Reciprocating pump
C Gear pump
D Axial flow pump
স্পন্দনশীল ডিসি থেকে ধ্রুব ডিসি ভোল্টেজ পেতে নিচের কোন যন্ত্রটি ব্যবহার করা হয়? (Which of the following devices is used to get a pure DC voltage from pulsating DC?)
A ব্যাটারী (Battery )
B রোধ (Resistor)
C ডায়োড (Diode)
D ধারক (Capacitor)
The loud pulsating noise heard within the cylinder of an internal combustion engine is known as
A Detonation
B Turbulence
C Pre-ignition
D Supercharging
A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as
A Back pressure turbine
B Pass out turbine
C Low pressure turbine
D Impulse turbine

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