Q1. When a large sine wave drives a Schmitt trigger, the output is a
(A) Rectangular wave
(B) Triangular wave
(C) Rectified sine wave
(D) Series of ramps

Q2. If the input is a rectangular pulse, the output of an opamp integrator is a
(A) Sine wave
(B) Square wave
(C) Ramp
(D) Rectangular pulse

Q3. Hysteresis prevents false triggering associated with
(A) A sinusoidal input
(B) Noise voltages
(C) Stray capacitances
(D) Trip points

Q4. The voltage out of an opamp Schmitt trigger is
(A) A low voltage
(B) A high voltage
(C) Either a low or a high voltage
(D) A sine wave

Q5. To detect when the input is greater than a particular value, use a
(A) Comparator
(B) Clamper
(C) Limiter
(D) Relaxation

Q6. In a nonlinear opamp circuit, the
(A) Op amp never saturates
(B) Feedback loop is never opened
(C) Output shape is the same as the input shape
(D) Op amp may saturate

Q7. The input signal for an instrumentation amplifier usually comes from
(A) An inverting amplifier
(B) A resistor
(C) A differential amplifier
(D) A wheatstone bridge

Q8. In a differential amplifier, the CMRR is limited mostly by the
(A) CMRR of the op amp
(B) Gain bandwidth product
(C) Supply voltages
(D) Tolerance of the resistors

Q9. An instrumentation amplifier has a high
(A) Output impedance
(B) Power gain
(C) CMRR
(D) Supply voltage

Q10. The voltage follower has a
(A) Closed loop voltage gain of unity
(B) Small open loop voltage gain
(C) Closed loop bandwidth of zero
(D) Large closed loop output impedance

Q11. A 741 C has
(A) A voltage gain of 100,000
(B) An input impedance of 2 M?
(C) An output impedance of 75?
(D) All of the above

Q12. An op amp has a voltage gain of 200,000. If the output voltage is 1 V, the input voltage is
(A) 2uV
(B) 5uV
(C) 10 V
(D) 1 V

Q13. The 741 C has a unity gain frequency of
(A) 10 Hz
(B) 20 Hz
(C) 1 MHz
(D) 15 MHz

Q14. The open-loop voltage gain of an op-amp is the
(A) external voltage gain the device is capable of
(B) internal voltage gain the device is capable of
(C) most controlled parameter
(D) None of these

Q15. The input impedance of a BIFET op amp is
(A) Low
(B) Medium
(C) High
(D) Extremely high

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