Q. The sine wave output of a function generator is fed to both the horizontal (X)and vertical (Y) inputs of a CR0. What will be the pattern on the cathode ray screen?
a. A circle
b. An ellipse
c. A straight line with 45° slope
d. Sinusoidal
Q. Which one of the following registers of 8085 microprocessor is not a part of programming model?
a. Instruction register
b. Memory address register
c. Status register
d. Temporary data register
Q. Which of the following instructions of an 8086 microprocessor uses the contents of a CX register as a counter?
1. LOCK
2. LOOP
3. ROTATE
Select the correct answer using the codes given below:
a. Only 1 and 2
b. Only 1 and 3
c. Only 2 and 3
d. 1, 2 and 3
Q. A quarter wave impedance transformers is a terminated by short circuit. What would its input impedance be equal to?
a. The line characteristic impedance
b. Zero
c. Infinity
d. Square root of the line characteristic impedance
Q. What is the phase shift between the input and output voltage in a common-base small signal amplifier (assuming ideal coupling and bypass capacitors)?
a. 180°
b. -180°
c. 0°
d. None of the above
Q. Which one of the following is correct for ASCII codes for all upper case English letter compared to all lower case English letters?
a. Are all large
b. Are all smaller
c. Are all equal
d. Some are larger and some are smaller