Q.511 How many pins does 8085 microprocessor have?
A. 30
B. 39
C. 40
D. 41
Ans.: C
Q.512 With logic family provided minimum power dissipation?
A. TTL
B. CMOS
C. ECL
D. JFET
Ans.: B
Q.513 When a step input is given to an op-amp integrator, the output will be a
A. Ramp wave
B. Sinusoidal wave
C. Rectangular wave
D. Triangular wave dc bias
Ans.: A
Q.514 Excess-3 code is known as
A. Weighted code
B. Cyclic redundancy code
C. Self complimentary code
D. Algebraic code
Ans.: C
Q.515 The high input impedance of a MOSFET makes this types of device ideal for use in
A. Weak-signal amplifier
B. high power amplifier
C. High current amplifier
D. Antenna turning network
Ans.: A
Q.516 Snubber circuit is used to limit the rate of
A. Rise of current
B. conduction period
C. Rise of voltage across SCR
D. all of above
Ans.: C
Q.517 What is the octal equivalent of the binary number 10111101
A. 675
B. 275
C. 572
D. 573
Ans.: B
Q.518 What of the following expression is in Sum Of Product(SOP) form.
A. AB+CD
B. AB(CD)
C. (A+B)(C+D)
D. (A)B(CD)
Ans.: A
Q.519 In a thyristor the magnitude of anode current will
A. Increase if gate current is increased
B. Increased if gate current decreased
C. Decrease if gate current is decreased
D. Not change with any variation in gate current
Ans.: D
Q.520 When the bias in an FET stops the flow of current, the condition is called
A. Forward breakdown
B. Cutt-off
C. Reverse bias
D. Pinch off
Ans.: D
Q.521 The unit of magnetic flux density is
A. Weber
B. Weber/meter
C. Ampere/meter
D. Tesla
Ans.: D
Q.522 Convolution of x(t+5) with impulse function δ(t-7) is equal to
A. x(t-2)
B. x(t+12)
C. x(t-12)
D. x(t+2)
Ans.: A
Q.523 A non inverting closed-loop op-Amp circuit generally has a gain factor
A. Less than one
B. greater than one
C. zero
D. 1
Ans.: B
Q.524 If the ground is applied to the positive terminal of an inverting of amp then negative terminal will
A. Not need any input resistance
B. be virtual ground
C. have high reverse current
D. not invert the signal
Ans.: B
Q.525 How many op-Amp will be required to implement this equation
V0 = – [Rt V1/R1+RtV2/R2 +RtV3/R3
A.2
B. 3
C. 4
D. 1
Ans.: D