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- Question
MICR stands for
Options- A. Magnetic Ink Chart Receipt
- B. Magnetic Ink Character Recognition
- C. Magnetic Ink Chart Recognition
- D. Magnetic Ink Character Receipt
- Correct Answer
- Magnetic Ink Character Recognition
ExplanationMagnetic ink character recognition is used in banking.
More questions
- 1. A single phase energy meter has the rating 1200 resolutions/ kWh. If a 500 W electric gadget is used for 4 hours, the energy meter will make
Options- A. 1200 revolutions
- B. 1800 revolutions
- C. 2100 revolutions
- D. 2400 revolutions Discuss
Correct Answer: 2400 revolutions
Explanation:
0.5 x 4 = 2 kWh = 2 x 1200 revolutions.- 2. Which of the following statement is correct for two wattmeters method of power measurement in 3 phase circuit?
Options- A. Power can be measured by this method only for star connected loads
- B. When two wattmeters have equal readings power factor is 0.5.
- C. When power factor is 1, one of the wattmeters readings is zero
- D. When the two wattmeter read equal and opposite, p.f. is zero. Discuss
Correct Answer: When the two wattmeter read equal and opposite, p.f. is zero.
Explanation:
When p.f. is zero, active power is zero and the two redaings are equal and opposite.- 3. The Lissajous pattern observed on screen of CRO is a straight line inclined at 45° to x axis. If X-plate input is 2 sin ?t, the Y-plate input is
Options- A. 2 sin ?t
- B. 2 sin (?t + 45°)
- C. 2 sin (?t - 45°)
- D. 22 sin ?t + 45°) Discuss
Correct Answer: 2 sin ?t
Explanation:
When signals to X and Y plates are in phase, the display is a straight line inclined at 45°.- 4. Fields are said to be circularly polarized if
Options- A. their magnitudes are equal
- B. their magnitudes are equal and they differ in phase by ± 90°
- C. their magnitudes are unequal and they differ in phase ± 90°
- D. their magnitudes are unequal and they are in phase Discuss
Correct Answer: their magnitudes are equal and they differ in phase by ± 90°
- 5. The main advantage of TWT over klystron is
Options- A. higher bandwidth
- B. higher gain
- C. higher frequency
- D. higher output Discuss
Correct Answer: higher bandwidth
- 6. An iron specimen has µr = 1000 when B = 0.3 T. If B = 0.35 T, µr
Options- A. will be 1000
- B. will be less than 1000
- C. will be more than 1000
- D. may be more or less than 1000 Discuss
Correct Answer: may be more or less than 1000
- 7. Inductors used at V.H.F. are made using
Options- A. air core
- B. cast iron cored
- C. sheet steel cored
- D. thin film technique Discuss
Correct Answer: thin film technique
Explanation:
Thin film technique ensure low hysteresis and eddy current losses.- 8. If v is the velocity of electron, tc is the average time between collisions, the mean free path ? = vtc.
Options- A. True
- B. False Discuss
Correct Answer: True
- 9. The radiation resistance of a doublet antenna of length dl is proportional to
Options- A. ? l
- B. (? l)2
- C. (? l)3
- D. (? l)05 Discuss
Correct Answer: (? l)2
- 10. In a metal, the drift velocity of electrons in the presence of a electric field E is
Options- A. proportional to E
- B. proportional to E
- C. inversely proportional to E
- D. proportional to E2 Discuss
Correct Answer: proportional to E
Explanation:
Drift velocity is proportional to field strength.
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