Which of the following device is bidirectional but without a gate?
(A) SCR
(B) Triac
(C) Diac
(D) None of the above
Answer: (A)
Showing posts with label nts. Show all posts
Showing posts with label nts. Show all posts
Sunday, 3 May 2020
Which of the following device is bidirectional but without a gate? basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
(A) SCR
(B) Triac
(C) Diac
(D) None of the above
Answer: (A)
A triac is like a, basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
A triac is like a
(A) unidirectional SCR
(B) bidirectional SCR
(C) NPN transistor
(D) PNP transistor
Answer: (B)
Which of the following is not a four layer diode? basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
Which of the following is not a four layer diode?
(A) SCR
(B) Triac
(C) Thyristor
(D) Diac
Answer: (D)
The characteristics of a thyristor closely re-semble to the characteristics of? basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
The characteristics of a thyristor closely re-semble to the characteristics of
(A) PN-Junction
(B) constant voltage source
(C) constatnt current source
(D) Thratron gas tube
Answer: (D)
When a SCR is conducting it has? basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
When a SCR is conducting it has
(A) infinitely large resistance
(B) resistance of few mega ohms
(C) low resistance
(D) zero resistance
Answer: (C)
The conduction in a SCR is controlled by? basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
The conduction in a SCR is controlled by
(A) gate
(B) anode
(C) cathode
(D) all of the above
Answer: (A)
LEDs do not require, basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
LEDs do not require
(A) Heating
(B) warm up time
(C) both (A) and (B) above
(D) none of the above
Answer: (C)
The power consumption of LEDs may be of the order of, basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
The power consumption of LEDs may be of the order of
(A) 5 to 10 nano amp
(B) 5 to 10 micro amp
(C) 5 to 10 mili amp
(D) 5 to 10 amperes
Answer: (C)
LEDs normally work on a voltage of, basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
LEDs normally work on a voltage of
(A) 1 to 2 V
(B) 10 TO 20 V
(C) 50 to 60 V
(D) 100 to 250 V
Answer: (A)
A zener Diode, basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
A zener Diode
(A) has a high forward-voltage rating
(B) has a sharp breakdown at low reverse voltage
(C) is useful as an amplifier
(D) has a negative resistance
Answer: (B)
Which of the following material is used for infra-red LED's, basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
Which of the following material is used for infra-red LED's
(A) Gallium arsenide
(B) Gallium phosphide
(C) Silicon
(D) None of the above
Answer: (A)
Which of the following material finds application in light emitting diodes?, basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
Which of the following material finds application in light emitting diodes?
(A) Silicon
(B) Phosphorous
(C) Sulphur
(D) Gallium phosphide
Answer: (D)
Avalanche breakdown in a semi-conductor diode occurs when, Nts test paper, basic electrical mcq pdf, nts electrical, gat subject electrical engineering book pdf, cts electrical mcqs, nts mcqs 2019, electrical engineering past papers, electrical mcqs books, entry test preparation for electrical engineering
Avalanche breakdown in a semi-conductor diode occurs when
(A) The potential barrier is reduced to zero
(B) forward bias exceeds a certain value
(C) Reverse bias exceeds a certain value
(D) forward current exceeds a certain value
Answer: (C)
Which of the following device has characteristic close to that of an ideal current source? NTS test preparation, pts test solution, nts test paper
Which of the following device has characteristic close to that of an ideal current source?
(A) Gas diode
(B) Crystal diode
(C) Transistor in CB mode
Answer: (C)
Which of the following device has characteristic close to that of an ideal voltage source? NTS test solution, nts test preparation, pts test paper, sts test paper
Which of the following device has characteristic close to that of an ideal voltage source?
(A) Zener Diode(B) Vacuum diode
(C) Crystal diode
(D) All of the above
Answer: (A)
Wednesday, 29 April 2020
NTS Test Preparation for Analytical Reasoning question with solution, NTS old Papers, NTS old test, NTS test solution, Most repeating question
NTS Test Preparation for Analytical Reasoning question with solution
Statement : 07 Person live in a street having houses in line consider the following:
1. A lives in the corner's house
2. C is between E and G
3. There is 1 house between D and F
4. F is neighbor of G
5. There are two houses between A and G
Solution :
Q-01: Who lives in the second corner
(a). B
(b). C
(c). D
(d). E
Q-02: Who lives in the middle?
(a). B
(b). C
(c). G
(d). E
Q-03: Who lives in between B and G?
(a). B
(b). C
(c). F
(d). E
Q-04: There are __________ Houses between B and E?
(a). 1
(b). 2
(c). 3
(d). 4
Statement : 07 Person live in a street having houses in line consider the following:
1. A lives in the corner's house
2. C is between E and G
3. There is 1 house between D and F
4. F is neighbor of G
5. There are two houses between A and G
Solution :
Q-01: Who lives in the second corner
(a). B
(b). C
(c). D
(d). E
Q-02: Who lives in the middle?
(a). B
(b). C
(c). G
(d). E
Q-03: Who lives in between B and G?
(a). B
(b). C
(c). F
(d). E
Q-04: There are __________ Houses between B and E?
(a). 1
(b). 2
(c). 3
(d). 4
Electrical & Electronics MCQs, NTS test for electronics and Electrical, Electrical test, Electronics Test, test solution, Nts, problem solutions, NTS Test Preparation Books Solved MCQs Pdf , Download NTS Test Preparation Books Pdf Download
Electrical & Electronics MCQs,
1- A Transformer is designed to be operated on both 50 & 60 Hz frequency.For the Same rating, which one will give more out put; when,
a. Operates on 50 Hz
b. Operates on 60 Hz
2- In a Transformer , The primary flux is always _________ the secondary ( flux).
a. Greater then
b. Smaller then
c. Equal
d. Equal in both step up and Step down Transformer
3- What would happen if we operate a 60 Hz Transformer on 50 Hz Source of Supply.(and how can we do that?
a. Current will decrease (so increase the current)
b. Current will increase ( so decrease the current)
c. Current will be same in both cases.
d. No Effect ( We can do that without changing anything)
4- We can’t perform such an operation.
A Step-Up Transformer which has 110/220 turns.What would happen if we replace it with 10/20 turns? (because Turns ratio would be same in both cases)
a. induced E.M.F wold be same
b. Induced E.M.F would be decreased
5- The rating of transformer may be expressed in ____________.
a. kW
b. kVAR
c. kVA
d. Horse power.
6- What will happen if the primary of a transformer is connected to D.C supply?
a. Transformer will operate with low efficiency
b. Transformer will operate with high efficiency
c. No effect
7- Transformer may start to smoke and burn
What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage?
a. Current will be too much high
b. Transformer may start to smoke and burn
c. Eddy Current and Hysteresis loss will be excessive
d. No effect
8- What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 5 Hz (frequency) source of the same voltage?
a. Current will be too much low
b. Transformer may start to smoke
c. Eddy Current and Hysteresis loss will be excessive
d. No effect
9- A Step Up transformer _____________.
a. Step Up the level of Voltage
b. Step down the level of current
c. Step up level the power
d. Step up the level of Frequency
10- Under what condition is D.C supply applied safely to the primary of a transformer?
a. We can connect directly to DC. No condition required
b. We can’t connect to DC Supply
11- A High resistance should be connect in series with primary, but circuit will be useless.
The above statement is wrong
An Auto-transformer (which has only one winding) may be used as a ______?
a. Step-Up Transformer
b. Step-Down Transformer
c. Both Step-Up and Step-Down transformer
d. None of the above
12- E.M.F Equation of the Transformer is _________.
E1 = 4.44 f N1 Øm , E2=4.44 f N2 Øm
E1 = 4.44 f N1 Bm A , E2 = 4.44 f N2 Bm A
E1= 4.44 N1 Øm/T , E2=4.44 N2 Øm/T
All of the above
None of the above
13- The friction losses in Real Transformers are _________?
a. 0%
b. 5%
c. 25%
d. 50%
14- An Isolation Transformer Has Primary to Secondary turns ratio of __________.
a. 1 : 2
b. 2 : 1
c. 1 : 1
15- Can be any ratio
In an Auto Transformer, The Primary and Secondary are__________Coupled.
a. Only Magnetically
b. Only Electrically
c. Magnetically as well as Electrically
d. None of the above
16- A Transformer______________.
a. Changes ac to DC
b. Changes dc to AC
c. Steps up or down DC Voltages & Current
d. Steps up or down AC Voltages & Current
NTS Test Preparation for Analytical Reasoning question with solution,
Six Person A, B, C, D, E and F are sitting around a circular table facing the center, NTS old Ppaers, NTS old test, NTS test solution, Most repeating question
Statement: Six Person A, B, C, D, E and F are sitting around a circular table facing the center. 1. C is sitting exactly between A a...
Q-01: Between which two persons is D sitting
(a). F-B
(b). E-B
Q-02: Who is sitting opposite A?
(a). F
(b). C
(c). E
(d). None of these
Q-03: Which of the following A's neighbor to his right
(a). C
(b). F
(c). B
Q-04: Who is sitting opposite E?
(a). A
(b). B
(c). F
Q-05: Between which of two persons is F
(a). A-B
(b). B-E
(c). C-B
1- A Transformer is designed to be operated on both 50 & 60 Hz frequency.For the Same rating, which one will give more out put; when,
a. Operates on 50 Hz
b. Operates on 60 Hz
2- In a Transformer , The primary flux is always _________ the secondary ( flux).
a. Greater then
b. Smaller then
c. Equal
d. Equal in both step up and Step down Transformer
3- What would happen if we operate a 60 Hz Transformer on 50 Hz Source of Supply.(and how can we do that?
a. Current will decrease (so increase the current)
b. Current will increase ( so decrease the current)
c. Current will be same in both cases.
d. No Effect ( We can do that without changing anything)
4- We can’t perform such an operation.
A Step-Up Transformer which has 110/220 turns.What would happen if we replace it with 10/20 turns? (because Turns ratio would be same in both cases)
a. induced E.M.F wold be same
b. Induced E.M.F would be decreased
5- The rating of transformer may be expressed in ____________.
a. kW
b. kVAR
c. kVA
d. Horse power.
6- What will happen if the primary of a transformer is connected to D.C supply?
a. Transformer will operate with low efficiency
b. Transformer will operate with high efficiency
c. No effect
7- Transformer may start to smoke and burn
What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage?
a. Current will be too much high
b. Transformer may start to smoke and burn
c. Eddy Current and Hysteresis loss will be excessive
d. No effect
8- What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 5 Hz (frequency) source of the same voltage?
a. Current will be too much low
b. Transformer may start to smoke
c. Eddy Current and Hysteresis loss will be excessive
d. No effect
9- A Step Up transformer _____________.
a. Step Up the level of Voltage
b. Step down the level of current
c. Step up level the power
d. Step up the level of Frequency
10- Under what condition is D.C supply applied safely to the primary of a transformer?
a. We can connect directly to DC. No condition required
b. We can’t connect to DC Supply
11- A High resistance should be connect in series with primary, but circuit will be useless.
The above statement is wrong
An Auto-transformer (which has only one winding) may be used as a ______?
a. Step-Up Transformer
b. Step-Down Transformer
c. Both Step-Up and Step-Down transformer
d. None of the above
12- E.M.F Equation of the Transformer is _________.
E1 = 4.44 f N1 Øm , E2=4.44 f N2 Øm
E1 = 4.44 f N1 Bm A , E2 = 4.44 f N2 Bm A
E1= 4.44 N1 Øm/T , E2=4.44 N2 Øm/T
All of the above
None of the above
13- The friction losses in Real Transformers are _________?
a. 0%
b. 5%
c. 25%
d. 50%
14- An Isolation Transformer Has Primary to Secondary turns ratio of __________.
a. 1 : 2
b. 2 : 1
c. 1 : 1
15- Can be any ratio
In an Auto Transformer, The Primary and Secondary are__________Coupled.
a. Only Magnetically
b. Only Electrically
c. Magnetically as well as Electrically
d. None of the above
16- A Transformer______________.
a. Changes ac to DC
b. Changes dc to AC
c. Steps up or down DC Voltages & Current
d. Steps up or down AC Voltages & Current
NTS Test Preparation for Analytical Reasoning question with solution,
Six Person A, B, C, D, E and F are sitting around a circular table facing the center, NTS old Ppaers, NTS old test, NTS test solution, Most repeating question
Statement: Six Person A, B, C, D, E and F are sitting around a circular table facing the center. 1. C is sitting exactly between A a...
Q-01: Between which two persons is D sitting
(a). F-B
(b). E-B
Q-02: Who is sitting opposite A?
(a). F
(b). C
(c). E
(d). None of these
Q-03: Which of the following A's neighbor to his right
(a). C
(b). F
(c). B
Q-04: Who is sitting opposite E?
(a). A
(b). B
(c). F
Q-05: Between which of two persons is F
(a). A-B
(b). B-E
(c). C-B
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