Engineering

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

Q51.
When a circuit consists of a capacitor and a resistor in series with a voltage source, and the voltage across the resistor is zero, then the capacitor is -
1) charging 2) discharging
3) fully charged 4) fully discharged
5)None of these
Answer : fully charged
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Q52.
Which material has the highest dielectric strength ?
1) Air 2) Paper
3) Mica 4) Oil
5)None of these
Answer : Mica
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Q53.
What is the impedance of this circuit ?
   
1) 1902 2) 2098
3) 1808 4) 1498
5)None of these
Answer : 2098
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Q54.
What is the capacitance of the circuit shown in the given circuit ?

      
1) 0.066 F 2) 0.9 F
3) 65.97 pF 4) 900 pF
5)None of these
Answer : 0.066 F
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Q55.
If an open capacitor is checked with an ohmmeter, the needle will -
1) stay on zero 2) stay on infinity
3) move from zero to infinity 4) move from infinity to zero
5)None of these
Answer : stay on infinity
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Q56.
What is the circuit when a resistor and an output capacitor form a series circuit with a square wave applied ?
1) an integrator 2) a differentiator
3) a multiplier 4) a divider
5)None of these
Answer : an integrator
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Q57.
Which of the following is considered as a capacitor's rate of charge  ?
1) magnetic 2) a current block
3) linear 4) exponential
5)None of these
Answer : exponential
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Q58.
What is the total capacitance ?

          
1) 4 F 2) 12 F
3) 6 F 4) 8 F
5)None of these
Answer : 12 F
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Q59.
Which of the following is a feature of an SCR device ?
1) Three layers with four junctions 2) Three layers with two junctions
3) Four layers with three junctions 4) Two layers with three junctions
5)None of these
Answer : Four layers with three junctions
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Q60.
Which of the following  is used by a Zener diode  ?
1) Voltage Regulation 2) Rectification
3) Noise Suppression 4) Blocking A.C
5)None of these
Answer : Voltage Regulation
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