Engineering
ISBT Reasoning for all banking PO,Clerk,IBPS PO,Railway,SSC,IAS,OAS Exams
Q71. | In a uniform circular motion if the radius is doubled the centripetal force now required is - |
| 1) | 1- quarter as great as before |
2) | half as great as before |
| 3) | twice as great as before |
4) | four times as great as before |
| 5) | None of these |
Answer : half as great as before
View AnswerQ72. | An 8 V power source is charging a capacitor. How many volts will be across the capacitor at the second time constant ? |
| 1) | 1 volt |
2) | 3 volts |
| 3) | 5 volts |
4) | 7 volts |
| 5) | None of these |
Answer : 7 volts
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Q73. | Which of the following material used between the plates of a capacitor ? |
| 1) | insulation material |
2) | dielectric material |
| 3) | separation material |
4) | plate-divider material |
| 5) | None of these |
Answer : dielectric material
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Q74. | 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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Q75. | 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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Q76. | 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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Q77. | 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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Q78. | 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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Q79. | 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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Q80. | 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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