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### Engineering

ISBT Reasoning for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams

##### A very brief, high voltage spike on an ac power line is called as -
 1) A bleeder 2) An arc 3) A transient 4) An avalanche 5) A clipped peak
Answer : A transient
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##### Which of the following is not a common form of data transmission ?
 1) Polarization modulation 2) Frequency modulation 3) Amplitude modulation 4) Phase modulation 5) Pulse modulation
Answer : Polarization modulation
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##### A diode can be used as a frequency multiplier because of its -
 1) Junction capacitance 2) Non linearity 3) Avalanche voltage 4) Forward breakover 5) Charge carrier concentration
Answer : Non linearity
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##### If 60 J of energy are available for every 15 C of charge, what is the voltage ?
 1) 4 V 2) 60 V 3) 15 V 4) 0.25 V
Answer : 4 V
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##### The pressure energy goes on changing into kinetic energy in case of -
 1) Pelton turbine 2) Francis turbine 3) Kaplan turbine 4) Francis and Kaplan 5) None of these
Answer : Francis and Kaplan
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##### The pressure energy goes on changing into kinetic energy in case of -
 1) Pelton turbine 2) Francis turbine 3) Kaplan turbine 4) Francis and Kaplan 5) None of these
Answer : Francis and Kaplan
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##### A turbine is having specific speed of 400. Then the turbine would be
 1) Kaplan turbine 2) Francis turbine 3) Pelton turbine 4) only 2 & 3 5) None of the above
Answer : Kaplan turbine
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##### A turbine is having specific speed as 100. Then the turbine would be -
 1) Kaplan turbine 2) Francis turbine 3) Pelton turbine 4) Steam turbine 5) None of these
Answer : Francis turbine
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##### The axial flow reaction turbine, in which vanes are fixed to the hub and they are not adjustable, is known as -
 1) Kaplan turbine 2) Francis turbine 3) propeller turbine 4) Pelton turbine 5) None of these
Answer : propeller turbine
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##### In case reaction turbine, the total head at the inlet of a turbine consists of -
 1) pressure energy and kinetic energy 2) kinetic energy only 3) pressure energy only 4) only 1 & 2 5) None of the above
Answer : pressure energy and kinetic energy
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