Govt Exams Mock Test FREE | Online Quiz Competition

Q1. There is a perfect circle of Lissajous pattern on the screen of C.R.O. when voltages of equal magnitude and__________phase shift are applied.

0, 360°

90°, 270°

30°, 330°

150°, 210°

Q2. ___________is an instrument which measures the insulation resistance of an electric circuit relative to earth.

Tangent galvanometer

Current transformer

Megger

Voltage transformer

Q3. In a single phase energy meter, the series electromagnet is energized by a ................. of…………………..

voltage coil, thick wire of few turns

current coil, thin wire of more turns

voltage coil, thin wire of more turns

current coil, thick wire of few turns

Q4. For a given line voltage, four heating coils will produce maximum heat when connected

All in parallel

One pair in parallel with two in series

Two parallel pairs in series

All in series

Q5. What is the primary purpose of a piezoelectric element in certain devices?

Converts electrical energy into mechanical energy

Converts electrical energy into light energy

Converts mechanical pressure into electrical energy

Generates cooling air using mechanical energy

Q6. Illumination level required for precision work is around _______lumen/ \(m^2\)

50

100

200

500

Q7. Which among the following type of bulbs are used for ceiling lights and wall lights?

High pressure sodium

Metal halide

Mercury vapor

Low pressure sodium

Q8. Which of the following is not maxwell’s equation (Here \(E \) represents electrical field, \(B\) represents magnetic field, \(\varepsilon\) represents epsilon, \(\rho\) represents charge density)?

\(\nabla \cdot E = \frac {\rho}{\epsilon}\)

\(\nabla \cdot B = 0 \)

\(\nabla \times E = \frac {\rho}{\epsilon}\)

all of the above

Q9. The potential inside a charged hollow sphere is,

Zero

Greater than that on the surface

Less than that on the surface

Same as that on the surface

Q10. A medium behaves like dielectric when \(_{-------------}\)

The displacement current is much greater than the conduction current

The displacement current is just equal to the conduction current

The displacement current is just less than the conduction current

The displacement current as well as conduction current both are negligibly small

Quiz

Year 2025

February
Week # 4 Quiz 3

Q1. There is a perfect circle of Lissajous pattern on the screen of C.R.O. when voltages of equal magnitude and__________phase shift are applied.

Q2. ___________is an instrument which measures the insulation resistance of an electric circuit relative to earth.

Q3. In a single phase energy meter, the series electromagnet is energized by a ................. of…………………..

Q4. For a given line voltage, four heating coils will produce maximum heat when connected

Q5. What is the primary purpose of a piezoelectric element in certain devices?

Q6. Illumination level required for precision work is around _______lumen/ \(m^2\)

Q7. Which among the following type of bulbs are used for ceiling lights and wall lights?

Q8. Which of the following is not maxwell’s equation (Here \(E \) represents electrical field, \(B\) represents magnetic field, \(\varepsilon\) represents epsilon, \(\rho\) represents charge density)?

Q9. The potential inside a charged hollow sphere is,

Q10. A medium behaves like dielectric when \(_{-------------}\)

Quiz

Year 2025

December Week # 3 Expire on 14 Jan 2025

December Week # 4 Expire on 21 Jan 2025

January Week # 1 Expire on 31 Jan 2025

January Week # 2 Expire on 07 Feb 2025

February Week # 4 Quiz 3

Q1. There is a perfect circle of Lissajous pattern on the screen of C.R.O. when voltages of equal magnitude and__________phase shift are applied.

Q2. ___________is an instrument which measures the insulation resistance of an electric circuit relative to earth.

Q3. In a single phase energy meter, the series electromagnet is energized by a ................. of…………………..

Q4. For a given line voltage, four heating coils will produce maximum heat when connected

Q5. What is the primary purpose of a piezoelectric element in certain devices?

Q6. Illumination level required for precision work is around _______lumen/ \(m^2\)

Q7. Which among the following type of bulbs are used for ceiling lights and wall lights?

Q8. Which of the following is not maxwell’s equation (Here \(E \) represents electrical field, \(B\) represents magnetic field, \(\varepsilon\) represents epsilon, \(\rho\) represents charge density)?

Q9. The potential inside a charged hollow sphere is,

Q10. A medium behaves like dielectric when \(_{-------------}\)

Record & Track Your Performance

February
Week # 4 Quiz 3