Sail E0 Webinar

MCQs

Total Questions : 109 | Page 10 of 11 pages
Question 91. The period of a sine wave is ___________ seconds. Its frequency is
  1.    20 Hz
  2.    30 Hz
  3.    40 Hz
  4.    50 Hz
 Discuss Question
Answer: Option D. -> 50 Hz
Question 92. The phosphors for which of the following pair are 180° out of phase for VL, VC and VR?
  1.    VC and VR
  2.    VL and VR
  3.    VC and VL
  4.    None of the above
 Discuss Question
Answer: Option C. -> VC and VL
Question 93. If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave?
  1.    42.42 sin 314 t
  2.    60 sin 25 t
  3.    30 sin 50 t
  4.    84.84 sin 25 t
 Discuss Question
Answer: Option A. -> 42.42 sin 314 t
Question 94. In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of
  1.    R only
  2.    L only
  3.    C only
  4.    L or C
 Discuss Question
Answer: Option D. -> L or C
Question 95. Inductance of coil
  1.    Is unaffected by the supply frequency
  2.    Decreases with the increase in supply frequency
  3.    Increases with the increase in supply frequency
  4.    Becomes zero with the increase in supply frequency
 Discuss Question
Answer: Option C. -> Increases with the increase in supply frequency
Question 96. The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes __________ ohms.
  1.    2.5
  2.    5
  3.    10
  4.    15
 Discuss Question
Answer: Option C. -> 10
Question 97. The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of ________ degrees.
  1.    90
  2.    60
  3.    45
  4.    30
 Discuss Question
Answer: Option C. -> 45
Question 98. The safest value of current the human body can carry for more than 3 second is
  1.    4 mA
  2.    9 mA
  3.    15 mA
  4.    25 mA
 Discuss Question
Answer: Option B. -> 9 mA
Question 99. The frequency of domestic power supply in India is
  1.    200 Hz
  2.    100 Hz
  3.    60 Hz
  4.    50 Hz
 Discuss Question
Answer: Option D. -> 50 Hz
Question 100. In an A.C. circuit power is dissipated in
  1.    Resistance only
  2.    Inductance only
  3.    Capacitance only
  4.    None of the above
 Discuss Question
Answer: Option A. -> Resistance only

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0