Govt Exams Mock Test FREE | Online Quiz Competition

Q1. Eddy current losses in a transformer is given by:
(Consider \(K_e =\) Eddy current constant, \(B_m=\)Maximum flux density, \(f=\) Frequency and \(t=\)Thickness of the core)

Eddy current losses \(=K_e\:B_m\:f\:t\)

Eddy current losses \(=K_e\:{B_m}^2\:f^2\:t^2\)

Eddy current losses \(=K_e\:{B_m}^2\:f^2\:t\)

Eddy current losses \(=K_e\:{B_m}^2\:f\:t\)

Q2. Coefficient of adhesion is

high in case of D.C. traction than in the case of AC. traction

low in case of D.C. traction than in the case of AC. traction

equal in both AC. and D.C. traction

any of the above

Q3. An industrial installation has a power factor of 0.8 lagging. It would be economical to improve pf to

Unity

about 0.8 lagging

about 0.95 lagging

about 0.95 leading

Q4. A string efficiency of 100 % implies that

Shunt capacitance is \(1 \mu F\)

One of the insulator disc is shorted

Potential across each disc is same

Potential across each disc is different

Q5. Four resistances of 80 \(\Omega\), 50 \(\Omega\), 25 \(\Omega\) and R are connected in parallel. Current through 25 \(\Omega\) resistor is 4 A. Total current of the supply is 10 A. The value of R in \(\Omega\) will be

66.66

36.36

40.25

76.56

Q6. What is the approximate installed generating capacity of Gujarat ?

15000 MW

10000 MW

20000MW

30000MW

Q7. In a D.C. transmission line which statement is true?

it is necessary for sending and receiving end to be operated in synchronism

there are no effects due to inductive and capacitive reactances

the effects of inductive and capacitive reactances are greater than in ac transmission line of the s

power transfer capability is limited by stability considerations

Q8. Decimal 43 in hexadecimal and BCD number system is respectively

B2, 01000011

2B, 01000011

2B, 00110100

B2, 010000100

Q9. With rise in temperature the resistance of semi-conductors

Decreases

Increases

first increases and then decreases

remain constant

Q10. Gauss-Seidel iterative method can be used for solving a set of

linear differential equations only.

linear algebraic equations only.

both linear and non-linear algebraic equations.

both linear and non-linear differential equations.

Quiz

Year 2024

May
Week # 2 Quiz 3

Q1. Eddy current losses in a transformer is given by:
(Consider \(K_e =\) Eddy current constant, \(B_m=\)Maximum flux density, \(f=\) Frequency and \(t=\)Thickness of the core)

Q2. Coefficient of adhesion is

Q3. An industrial installation has a power factor of 0.8 lagging. It would be economical to improve pf to

Q4. A string efficiency of 100 % implies that

Q5. Four resistances of 80 \(\Omega\), 50 \(\Omega\), 25 \(\Omega\) and R are connected in parallel. Current through 25 \(\Omega\) resistor is 4 A. Total current of the supply is 10 A. The value of R in \(\Omega\) will be

Q6. What is the approximate installed generating capacity of Gujarat ?

Q7. In a D.C. transmission line which statement is true?

Q8. Decimal 43 in hexadecimal and BCD number system is respectively

Q9. With rise in temperature the resistance of semi-conductors

Q10. Gauss-Seidel iterative method can be used for solving a set of

Quiz

Year 2024

April Week # 1 Expire on 30 Apr 2024

April Week # 2 Expire on 07 May 2024

April Week # 3 Expire on 14 May 2024

April Week # 4 Expire on 21 May 2024

May Week # 2 Quiz 3

Q1. Eddy current losses in a transformer is given by: (Consider \(K_e =\) Eddy current constant, \(B_m=\)Maximum flux density, \(f=\) Frequency and \(t=\)Thickness of the core)

Q2. Coefficient of adhesion is

Q3. An industrial installation has a power factor of 0.8 lagging. It would be economical to improve pf to

Q4. A string efficiency of 100 % implies that

Q5. Four resistances of 80 \(\Omega\), 50 \(\Omega\), 25 \(\Omega\) and R are connected in parallel. Current through 25 \(\Omega\) resistor is 4 A. Total current of the supply is 10 A. The value of R in \(\Omega\) will be

Q6. What is the approximate installed generating capacity of Gujarat ?

Q7. In a D.C. transmission line which statement is true?

Q8. Decimal 43 in hexadecimal and BCD number system is respectively

Q9. With rise in temperature the resistance of semi-conductors

Q10. Gauss-Seidel iterative method can be used for solving a set of

Record & Track Your Performance

May
Week # 2 Quiz 3

Q1. Eddy current losses in a transformer is given by:
(Consider \(K_e =\) Eddy current constant, \(B_m=\)Maximum flux density, \(f=\) Frequency and \(t=\)Thickness of the core)