Engineering

ISBT Engineering 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

Q72.	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

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

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

Q75.	Which material has the highest dielectric strength ?

1)	Air	2)	Paper
3)	Mica	4)	Oil
5)	None of these

Q76.	What is the impedance of this circuit ?

1)	1902	2)	2098
3)	1808	4)	1498
5)	None of these

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

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

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

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