Knowledge / Trivia tests -» Physics -» Energy / Electricity

Electrical Engineer Test Part-6

20 Questions - Developed by: Zeya - Developed on: 2019-03-09 - 3,762 taken - 6 people like it

Electrical Engineer Test Part-6 (V-1.7) (Question: 101-120)

1

45. The input resistance of CB configuration is measured constant ______

(b) IC
(d) Vce
(c) Vcb
(a) IB

2

46. The dynamic output resistance of transistor in CB configuration is ___ at constant IE.

(c) ∆VCB/∆IC
(b) ∆VEB/∆IC
(a) ∆VEB/∆IE

3

46. The dynamic output resistance of transistor in CB configuration is ___ at constant IE.

(a) ∆VEB/∆IE
(c) ∆VCB/∆IC
(b) ∆VEB/∆IC

4

45. Cascade amplifier is used because

B. High output impedance
C. High input impedance
A. High Voltage gain

5

46. Cascade amplifier used to reduce load effect, the input impedance will be

C. Medium
A. High
B. Low

6

47. Cascaded amplifier used to reduce load effect, the output impedance will be

B. Low
A. High
C. Medium

7

48. The output for the Cascade amplifier is (Confirm answer)

B. Output of the last stage
None
A. The output of the first stage

8

49. The load resistance of Cascade amplifier is (Confirm answer)

A. The resistance after the first stage
D. The resistance before the second stage
C. The resistance after the second stage
B. The resistance before the first stage

9

50. What is the low-pass filter?

C. It will let pass a band of frequencies?
B. It will let pass high frequencies?
A. It will let pass low frequencies? (or it blocks high frequency)
D. It will eliminate a band of frequencies?

10

51. What is the role of the Zener diode?

A. Rectification
B. Amplification
C. voltage regulation

11

52. Filter in active region

A. filters the signal
C. Filters and amplifies
B. filters, amplifies and modulates

12

53. Type of amplifier used at receiver in order to amplify the signal?

B. Differential Amplifier
A. Power amplifier
None

13

54. When using Zener diode for voltage regulation, the output waveform shape will be affected by:

None
A- Dynamic resistance of the diode
B- Input current passing through the diode

14

55. For an inverter op-amp, what will be the equivalent output resistance?

C) 0
D) Same as the input resistance
A) Relative forward resistance
E) None of the above
B) Infinity

15

56. The heat loss inside a straight conductor is 60J upon applying current I for 5s. if the resistance of the conductor is decease to half, and the same current is applied for 5s, what will be the heat dissipation:

C. 15J
D. 120J
A. 60J
B. 30J

16

57. Fan out logic gate is

None
B. Number of gate connect to output
A. Number of gate

17

58. Type of amplifier at transmitter?

B. Differential Amplifier
A. Power amplifier
None

18

59. Loading effect can be reduced in a system by using

D. Diff Amplifier
C. Non - Inverted Amplifier
B. Inverted Amplifier
A. Integrator

19

60. Transformer humming due to

None
A. Vibration in Lamination
B. vibration in oil

20

61. If fuse rate = 8 Ampere, what does mean?

None
B. Can’t pass current below 8 A
A. It will melt if current increased above 8 A

Comments (0)