Electrical Engineering Mcqs

An SCR is made of_______________?

• (A)  Germanium
• (B)  Silicon
• (C)  Carbon
• (D)  None of the above

Answer

Submitted By :Ali Uppal

The formula __________ determines the number of electrons that can be accommodated in any level?

• (A)  2n2
• (B)  4n2
• (C)  2n3
• (D)  4ns

Answer

Submitted By :Ali Uppal

The converse of hardness is known as______________?

• (A)  malleability
• (B)  toughness
• (C)  softness
• (D)  none of the above

Answer

Submitted By :Ali Uppal

is a negatively charged particle present in an atom______________?

• (A)  Proton
• (B)  Neutron
• (C)  Electron
• (D)  None of the above

Answer

Submitted By :Ali Uppal

When an SCR is turned on, the voltage across it is about _____________?

• (A)  Zero
• (B)  10 V
• (C)  1 V
• (D)  1 V

Answer

Submitted By :Ali Uppal

An SCR is a ____________ triggered device?

• (A)  Voltage
• (B)  Current
• (C)  Voltage as well as current
• (D)  None of the above

Answer

Submitted By :Ali Uppal

An SCR is made of silicon and not germanium because silicon _________________?

• (A)  Is inexpensive
• (B)  Is mechanically strong
• (C)  Has small leakage current
• (D)  Is tetravalent

Answer

Submitted By :Ali Uppal

In an SCR circuit the supply voltage is generally ___________ that of breakover voltage?

• (A)  Equal to
• (B)  Less than
• (C)  Greater than
• (D)  None of the above

Answer

Submitted By :Ali Uppal

The normal way to turn on a SCR is by______________?

• (A)  Breakover voltage
• (B)  Appropriate anode current
• (C)  Appropriate gate current
• (D)  None of the above

Answer

Submitted By :Ali Uppal

The conductivity of a conductor can be increased by_______________?

• (A)  decreasing its temperature
• (B)  increasing its temperature
• (C)  decreasing its vibration
• (D)  increasing its vibration

Answer

Submitted By :Ali Uppal