Electrical Engineering Mcqs

If a square wave is fed to a differentiating circuit, the output will be _____________?

• (A)  Sine wave
• (B)  Sharp narrow pulses
• (C)  Rectangular wave
• (D)  Triangular wave

Answer

Submitted By :Ali Uppal

If the input to a differentiating circuit is a saw-tooth wave, then output will be _____________?

• (A)  Square
• (B)  Triangular
• (C)  Sine
• (D)  Rectangular

Answer

Submitted By :Ali Uppal

An astable multivibrator has ________________?

• (A)  One stable state
• (B)  Two stable states
• (C)  No stable state
• (D)  None of the above

Answer

Submitted By :Ali Uppal

A relay is superior to a mechanical switch because it _______________?

• (A)  Is relatively inexpensive
• (B)  Does not require moving contacts
• (C)  Combines control with power amplification
• (D)  None of the above

Answer

Submitted By :Ali Uppal

______________ multivibrator is a square wave oscillator?

• (A)  Monostable
• (B)  Astable
• (C)  Bistable
• (D)  None of the above

Answer

Submitted By :Ali Uppal

The most inexpensive switch is _____________ switch?

• (A)  Electronic
• (B)  Mechanical
• (C)  Electromechanical
• (D)  None of the above

Answer

Submitted By :Ali Uppal

A switch has ______________?

• (A)  One state
• (B)  Two states
• (C)  Three states
• (D)  None of the above

Answer

Submitted By :Ali Uppal

The maximum speed of electronic switch can be _____________operations per second?

• (A)  104
• (B)  10
• (C)  1000
• (D)  109

Answer

Submitted By :Ali Uppal

The main disadvantage of a mechanical switch is that it_______________?

• (A)  Is operated mechanically
• (B)  Is costly
• (C)  Has high inertia
• (D)  None of the above

Answer

Submitted By :Ali Uppal

In a multivibrator, we have___________ feedback?

• (A)  Negative
• (B)  100 % positive
• (C)  Both positive and negative
• (D)  None of the above

Answer

Submitted By :Ali Uppal