Today, all competitive exams are Multiple Choice Questions(MCQ) based examination system and the main factor is to answer each question in a prescribed time. So, practice as much as possible before the original test you are going to face.
Total number of Multiple Choice Question (MCQ) is 15 and time allotted for each question is 30 seconds. After the allotted time, the question will be marked as un-attempt.
QUIZ
Test Conducted by: ObjectiveBooks.com
Next Mock Tests:
01. To measure the current out of the second resistor in a circuit consisting of four resistors, an ammeter can be placed
(A) Between the second and third resistors
(B) At the negative terminal of the source
(C) Between the third and fourth resistors
(D) At any point in the circuit
Answer: Option D
02. The commonly used material for shielding or screening magnetism is
(A) Copper
(B) Aluminium
(C) Soft iron
(D) Brass
Answer: Option C
03. A circuit is disconnected by isolators when
(A) Line is energized
(B) There is no current in the line
(C) Line is on full load
(D) Circuit breaker is not open
Answer: Option B
04. A capacitor of 0.02 μF is larger than
(A) 0.000020 F
(B) 200,000 pF
(C) 2,000 pF
(D) All of the above
Answer: Option C
05. Pure inductive circuit takes power from the A.C. line when
(A) Applied voltage decreases but current increases
(B) Applied voltage increases but current decreases
(C) Both applied voltage and current increase
(D) Both applied voltage and current decrease
Answer: Option: A
06. When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop
(A) Inductor motor torque
(B) Induction generator torque
(C) Synchronous motor torque
(D) D.C. motor toque
Answer: Option B
07. In the circle diagram for induction motor, the diameter of the circle represents
(A) Slip
(B) Rotor current
(C) Running torque
(D) Line voltage
Answer: Option B
08. In a regenerative surface condenser
(A) There is one pump to remove air and condensate
(B) There are two pumps to remove air and condensate
(C) There are three pumps to remove air, vapour and condensate
(D) There is no pump; the condensate gets removed by gravity
Answer: Option B
09. An electrolytic capacitor is generally made to provide
(A) Low capacitance
(B) Fixed capacitance
(C) Variable capacitance
(D) Large value of capacitance
Answer: Option D
10. Switching of a lamp in house produces noise in the radio. This is because switching operation produces
(A) Arcs across separating contacts
(B) Mechanical noise of high intensity
(C) Both mechanical noise and arc between contacts
(D) None of the above
Answer: Option A
11. A uniformly loaded D.C. distributor is fed at both ends with equal voltages. As compared to a similar distributor fed at one end only, the drop at the middle point is
(A) One-fourth
(B) One-third
(C) One-half
(D) Twice
Answer: Option A
12. The average value of a 12 V peak sine wave over one complete cycle is
(A) 0 V
(B) 1.27 V
(C) 7.64 V
(D) 6.37 V
Answer: Option A
13. Binary vapour cycles are used to
(A) Increase the performance of the condenser
(B) Increase the efficiency of the plant
(C) Increase efficiency of the turbine
(D) None of the above
Answer: Option B
14. If a battery is wrongly connected on charge following will happen
(A) Current delivered by the battery will be high
(B) Current drawing will be nil
(C) Current drawing will be very small
(D) Current drawing will be very high
Answer: Option D
15. The increase in heat dissipation by air blasts is due to increase in
(A) Conduction
(B) Convection
(C) Radiation
(D) Any of the above
Answer: Option B
