IkodeAutomation

Q19. Three resistors each with a value of 0.069 mega ohm are in parallel the total resistance is_____.
a) 23 ohm
b) 23 k ohm
c) 204 ohm
d) 0.2 Mega ohm

ANS: 23k ohm

Q20.which system is appropriate for light load, fast movement application?
a) hydraulic system
b) pneumatic system
c) gear and chain drive
d) none of the above

ANS: option b

Q20.among the two alternating quantities with the same frequency , when one quantity attains maximum value, the other is at zero value. What must be the phase angle between these two alternating quantities?
a) 0 degree
b) 45 degree
c) 90 degree
d) 180 degree

ANS: option C

Q21. Which of the following statement is correct?
a) In a purely inductive circuit , current lags by 90° behind the applied voltage.
b) opposition offered by the inductance of a circuit to the flow of an alternating current is called inductive reactance.
c) the unit of inductive reactance is ohm.
d) all of the above.

ANS: option d

Q22. Which of the following is of practical importance in the electrochemical field?
a) average value
b) peak value
c) R.M.S. Value
d) peak to peak value

ANS: option a

COMPETITION

Q1. The ratio of r.m.s. value of an alternating quantity to its average value is called_____.

ANS : form factor

Today's question,
Q30. For a full-wave rectified sinusoidal alternating current with a peak value Im,the r.m.s. value is____.
a)0.707Im
b)0.637Im
c)0.318Im
d) zero