Sail E0 Webinar

MCQs

Total Questions : 480 | Page 48 of 48 pages
Question 471. The net charge of a neutral copper atom is
  1.    0
  2.    1
  3.    -1
  4.    4
  5.    None of the above
 Discuss Question
Answer: Option B. -> 1
Question 472. At room temperature an intrinsic silicon crystal acts approximately like
  1.    a battery
  2.    a conductor
  3.    an insulator
  4.    a piece of copper wire
  5.    None of the above
 Discuss Question
Answer: Option C. -> an insulator
Question 473. A low-pass filter:
  1.    passes lower-frequency signals and reduces higher-frequency signals
  2.    passes higher-frequency signals and reduces lower-frequency signals
  3.    has no effect on ac signals
  4.    reduces the level of all frequencies by a significant amount
  5.    None of the above
 Discuss Question
Answer: Option A. -> passes lower-frequency signals and reduces higher-frequency signals
Question 474. What is one important thing transistors do?
  1.    Emit light
  2.    Amplify weak signals
  3.    Regulate voltage
  4.    Rectify line voltage
  5.    None of the above
 Discuss Question
Answer: Option B. -> Amplify weak signals
Question 475. Which one of the following statements is true for the voltage in a parallel RL circuit?
  1.    The voltage always has the same amplitude and phase for every part of the circuit
  2.    The total voltage is equal to the sum of the voltages across the resistance and inductance
  3.    The total voltage lags the total current by less than 90
  4.    The total voltages is less than the sum of the voltages across the resistance and inductance
  5.    None of the above
 Discuss Question
Answer: Option A. -> The voltage always has the same amplitude and phase for every part of the circuit
Question 476. The equivalent of 1 kV is:
  1.    1.00 V
  2.    1000 V
  3.    100 mV
  4.    1000 mV
  5.    None of the above
 Discuss Question
Answer: Option B. -> 1000 V
Question 477. Which one of the following principles best describes the basic operation of a generator?
  1.    Like magnetic poles repel; unlike poles attract
  2.    Current is induced in a conductor that is moving through a magnetic field
  3.    Like magnetic poles attract; unlike poles repel
  4.    Current flowing through a conductor generates a magnetic field
  5.    None of the above
 Discuss Question
Answer: Option B. -> Current is induced in a conductor that is moving through a magnetic field
Question 478. The current gain of a transistor is defined as the ratio of the collector current to the
  1.    base current
  2.    emitter current
  3.    supply current
  4.    collector current
  5.    None of the above
 Discuss Question
Answer: Option A. -> base current
Question 479. What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm?
  1.    220 ohm
  2.    150 ohm
  3.    445 ohm
  4.    690 ohm
  5.    None of the above
 Discuss Question
Answer: Option B. -> 150 ohm
Question 480. The period of a waveform is:
  1.    the time required to complete one full cycle
  2.    the number of cycles completed in one second
  3.    the time required for the voltage to rise from 10% to 90% of the peak amplitude
  4.    equal to 0.707 times the peak amplitude
  5.    None of the above
 Discuss Question
Answer: Option A. -> the time required to complete one full cycle

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