Question is ⇒ Two wattmeter method for 3 phase power measurement can be used only for, Options are ⇒ (A) balanced loads, (B) unbalanced loads, (C) both balanced and unbalanced loads, (D) star connected loads, (E) , Leave your comments or Download question paper.

Question is ⇒ Two wattmeter method for 3 phase power measurement can be used only for, Options are ⇒ (A) balanced loads, (B) unbalanced loads, (C) both balanced and unbalanced loads, (D) star connected loads, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Two wattmeter method for 3 phase power measurement can be used only for
A.	balanced loads [Wrong Answer]
B.	unbalanced loads [Wrong Answer]
C.	both balanced and unbalanced loads [Correct Answer]
D.	star connected loads [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ A trigonometric series has
single sided spectra
zero
sync function
undefined

⇒ The function to Calculate the maximum value in the specified field of a database is
DM
DMAX
MAX
DBMAX

⇒ In 8085 microprocessor, what is the length of SP (stack) pointer?
6 bits
8 bits
12 bits
16 bits

⇒ For F₁ layer the maximum ionic density is 2.3 x 10⁴ electrons per cc. The critical frequency for this layer will be
1.36 MHz
13.6 MHz
136 MHz
1360 MHz

⇒ The quiescent collector current I_C, and collector to emitter voltage V_CE in a CE connection are the values when
ac signal is zero
ac signal is low
ac signal is negative
either (a) or (b)

⇒

Assertion (A): In 8085 when RESET OUT goes low processing begins.

Reason (R): CPU remains reset till RESET IN signal goes high.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct R is wrong
A is wrong R is correct

⇒ Specific resistance of silver is about
0.16 x 10^-8 Ω-m
1.64 x 10^-8 Ω-m
16 x 10^-8 Ω-m
164 x 10^-8 Ω-m

⇒ An extrinsic semiconductor sample has 6 billion silicon atoms and 3 million pentavalent impurity atoms. The number of electrons and holes is
3 million each
6 billion each
3 million free electrons and very small number of holes
3 million holes and very small number of free electrons

⇒ The Fourier series of a real periodic function has only

Cosine terms if it is even
Sine terms if it is even
Cosine terms if it is odd
Sine terms if it is odd

Which of the above statements are correct?
(1) and (4)
(1) and (2)
(2) and (4)
(2) and (3)

⇒ Spot the odd one out
aluminium
silver
porcelain
copper

⇒ In an SSB transmitter one is most likely to find
class C audio amplifier
tuned modulator
class B RF amplifier
class AB power amplifier

⇒ Maximum efficiency of class B power amplifier is 50%.
TRUE
FALSE

⇒ Consider the following statements about diamagnetic material and diamagnetism.

The materials have negative magnetic susceptibility.
At very low temperature diamagnetic materials.

Which of the statements given above is/are correct?
1 only
2 only
Both 1 and 2
neither 1 nor 2

⇒

Assertion (A): Magnetron is generally used in n mode.

Reason (R): Frequency for p mode can be easily separated from adjacent modes.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ An RC series circuit is charged by a voltage E. After a long time the battery is removed and a short circuit is placed across R-C. Then
the polarity of voltage across R is same during discharge and during charge
the polarity of voltage across R during discharging is opposite to that during charging
the polarity of voltage across R depends on time constant RC
none of the above

⇒ Which one of the following power amplifier has the maximum efficiency?
Class A
Class B
Class AB
Class C

⇒ All inverters use forced commutation.
TRUE
FALSE

⇒

Assertion (A): In an n-p-n transistor as the electrons enter the collector region, they are accelerated towards the collector terminal.

Reason (R): Emitter base junction in BJT is forward biased.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true

⇒ A transmitter serial current contains
carrier frequencies
audio frequencies
radio frequencies
none of the above

⇒ The time constant of a series R-C circuit is given by
R/C
RC²
RC
R²C

⇒ Laplacian of a scalar function V is
gradient of V
gradient of the gradient of V
divergence of V
divergence of the gradient of V

⇒ In a Hurwitz polynomial
all coefficients are non-negative
both the odd and even parts have roots on jω axis
the continued fraction expansion is the ratio of odd to even parts of a Hurwitz polynomial yields all positive quotient terms
all of the above

⇒ The first geostationary satellite launched in 1965 was called
ANIK
EARLY BIRD (Intelsat-I)
WESTAR
MOLNIYA

⇒ The voltage induced in a loop of wire rotating in a strong and steady magnetic field is
pulsating dc
dc
rectified ac
ac

⇒ In an ac network the sum of currents entering a node is 10 ∠45°. The sum of currents leaving the node is
19.32 ∠45°
15 ∠45°
20 ∠45°
zero

⇒ Logic analyser is
a multichannel oscilloscope
similar to logic pulser
similar to current tracer
none of the above

⇒ The complement of Boolean expression AB (B C + AC) is
(A + B) + (B + C) + (A + C)
A B + (B + C)(A + C)
(A + B) + (B + C) (A + C)
none of the above

⇒ In log magnitude Bode diagram the slope of high frequency asymptote of (1 + jωT) is
20 dB per decade
10 dB per decade
20 dB per octave
10 dB per octave

⇒ A capacitance transducer has two plates each of area 5 mm². The coil gap is 2 mm. Displacement sensitivity due to change in gap length is
11.1 pF/cm
44.2 pF/cm
52.3 pF/cm
66.3 pF/cm

⇒ When subjected to alternating stresses, an insulating material is characterised by complex dielectric constant ∈^'_r - j∈^"_r . In such materials, the dielectric losses under alternating stress is proportional
∈^"_r
both ∈^'_r and ∈^"_r
∈^'_r
(∈^"_r)²