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Consider the following statements about ultrasonic flow meters:
| |
A. | 1 only [Wrong Answer] |
B. | 1 and 2 only [Wrong Answer] |
C. | 1, 2 and 4 [Correct Answer] |
D. | 3 and 4 only [Wrong Answer] |
View Answer
Explanation:-
Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ The circuit diagram shown in the figure consists of transistors
parallel connection
cascade connection
darlington connection
series connection
⇒ In a base driver amplifier the voltage gain is the ratio of
ac collector voltage to ac base voltage
ac emitter voltage to ac base voltage
ac collector voltage to ac emitter voltage
ac base voltage to ac emitter voltage
⇒ In an R-S latch, race condition occurs when
R is low and S is high
R and S are high
R and S are low
R is high and S is low
⇒ Which of the following terms are applicable to troposcatter propagation?
Faradays rotation
SIOs
Fading
Atmospheric storms
⇒ Highest value of Autocorrelation of a function 100 cos 50 pt is
50
100
zero
100/p
⇒ A voltage V(t) is a Gaussian ergodic random process with a mean of zero and a variance of 4 volt^{2}. If it is measured by a dc meter. The reading will be
0
4
2
2
⇒ For a given line voltage, four heating coils will produce maximum heat when connected
all in parallel
all in series
with two parallel pairs in series
one pair in parallel with the other two in series
⇒ Which of the following is non-sinusoidal oscillator?
Multivibrator
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Any of the above
⇒ When atoms are held together by the sharing of valence electrons
each atom becomes free to move
neutrons start shifting
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some of the electrons are lost
⇒ Which of the following cannot be the Fourier series expansion of a periodic signal?
x(t) = 2 cos t + 3 cos 3t
x(t) = 2 cos pt + 7 cos t
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⇒ The atomic weight of an atom is determined by
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⇒ In the transformer shown in the figure, the inductance measured across the terminal 1 and 2 was 4 H with open terminals 3 and 4. It was 3H when the terminals 3 and 4 were short circuited. The coefficient of coupling woul
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indetermine due to insufficient data
⇒ A forward voltage of 9 V is applied to a diode in series with a 1 kΩ load resistor. The voltage across load resistor is zero. It indicates that
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⇒ The primary constants of a transmission line are
R and L
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⇒ Which of the following expressions may be used to correctly describe the temperature (T) variation of the intrinsic carrier density (n_{i}) of a semiconductor?
n_{i}(T) = (A/T) exp (- E_{8}/kT^{2})
n_{i}(T) = A (- E_{8}/2kT)^{10}
n_{i}(T) = A exp (- E_{8}/2kT^{2})
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⇒ Consider the following logical IF statement in Fortran 77IF (SALT - PEPPER) 11, 11, 13
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⇒ An OR gate has 4 inputs. One input is high and the other three are low. The output
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may be high or low depending on relative magnitude of inputs
⇒ The velocity of sound waves in air
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varies directly as temperature
varies inversely as absolute temperature
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⇒ A transistor has a maximum power dissipation of 350 mW at an ambient temperature of 25°C. If derating factor is 2 mW/°C, the maximum power dissipation for 40°C ambient temperature is
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330 mW
350 mW
380 mW
⇒ The forbidden energy gap in semiconductors
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⇒ Compact discs use
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⇒ For a circular wave guide
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cutoff frequency for TE_{10} and TE_{01} modes are different
cutoff frequency for TE_{10} mode = twice the cutoff frequency for TE_{20} mode
cutoff frequency for TE_{10} mode = haf the cutoff frequency for TE_{20} mode
⇒ Thyristors are suitable for dc circuit breakers but not for ac circuit breakers.
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⇒ An image uses 512 x 512 picture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be
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⇒ In the CE equivalent circuit of figure, the voltage gai
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25722
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25777
⇒ If sound wave has an intensity of 10 Pa. The dB level is about
1.139 dB
11.39 dB
113.9 dB
1139 dB
⇒ Degaussing in a picture tube means
Adding magnetism in mask and mounting frame
Removing residual magnetism in mask, shield etc...
Increasing resistance of coils to decrease time constant
Decreasing resistance of coils to increase time constant.
⇒ A resistance is measured by voltmeter-ammeter method. The voltmeter is 0-250V, ± 1% accuracy and ammeter is 0-5 A, ± 1 % accuracy. The readings of voltmeter and ammeter are 100 V and 2 A respectively. The error in the measured resistance can be
± 1%
± 2%
± 5%
± 10%
⇒ The circuit diagram shown in the figure consists of transistors
parallel connection
cascade connection
darlington connection
series connection
⇒ In a base driver amplifier the voltage gain is the ratio of
ac collector voltage to ac base voltage
ac emitter voltage to ac base voltage
ac collector voltage to ac emitter voltage
ac base voltage to ac emitter voltage
⇒ In an R-S latch, race condition occurs when
R is low and S is high
R and S are high
R and S are low
R is high and S is low
⇒ Which of the following terms are applicable to troposcatter propagation?
Faradays rotation
SIOs
Fading
Atmospheric storms
⇒ Highest value of Autocorrelation of a function 100 cos 50 pt is
50
100
zero
100/p
⇒ A voltage V(t) is a Gaussian ergodic random process with a mean of zero and a variance of 4 volt^{2}. If it is measured by a dc meter. The reading will be
0
4
2
2
⇒ For a given line voltage, four heating coils will produce maximum heat when connected
all in parallel
all in series
with two parallel pairs in series
one pair in parallel with the other two in series
⇒ Which of the following is non-sinusoidal oscillator?
Multivibrator
Relaxation oscillator using UJT
Relaxation oscillator using tunnel diode
Any of the above
⇒ When atoms are held together by the sharing of valence electrons
each atom becomes free to move
neutrons start shifting
they form a covalent bond
some of the electrons are lost
⇒ Which of the following cannot be the Fourier series expansion of a periodic signal?
x(t) = 2 cos t + 3 cos 3t
x(t) = 2 cos pt + 7 cos t
x(t) = cos t + 0.5
x(t) = 2 cos 1.5pt + sin 3.5 pt
⇒ The atomic weight of an atom is determined by
the number of protons
the number of neutrons
the number of protons and neutrons
the number of electrons and protons
⇒ In the transformer shown in the figure, the inductance measured across the terminal 1 and 2 was 4 H with open terminals 3 and 4. It was 3H when the terminals 3 and 4 were short circuited. The coefficient of coupling woul
1
0.707
0.5
indetermine due to insufficient data
⇒ A forward voltage of 9 V is applied to a diode in series with a 1 kΩ load resistor. The voltage across load resistor is zero. It indicates that
diode is short circuited
diode is open circuited
resistor is open circuited
diode is either short circuited or open circuited
⇒ The primary constants of a transmission line are
R and L
R, L and C
R and C
R, L, G and C
⇒ Which of the following expressions may be used to correctly describe the temperature (T) variation of the intrinsic carrier density (n_{i}) of a semiconductor?
n_{i}(T) = (A/T) exp (- E_{8}/kT^{2})
n_{i}(T) = A (- E_{8}/2kT)^{10}
n_{i}(T) = A exp (- E_{8}/2kT^{2})
n_{i}(T) = AT^{3/2} exp (-E_{8}/2kT)
⇒ Consider the following logical IF statement in Fortran 77
IF (SALT - PEPPER) 13, 11, 11
IF (SALT - PEPPER) 13, 13, 11
IF (SALT - PEPPER) 11, 13, 13
⇒ An OR gate has 4 inputs. One input is high and the other three are low. The output
is low
is high
is alternately high and low
may be high or low depending on relative magnitude of inputs
⇒ The velocity of sound waves in air
is constant at all temperatures
varies directly as temperature
varies inversely as absolute temperature
varies directly as square root of absolute temperature
⇒ A transistor has a maximum power dissipation of 350 mW at an ambient temperature of 25°C. If derating factor is 2 mW/°C, the maximum power dissipation for 40°C ambient temperature is
300 mW
330 mW
350 mW
380 mW
⇒ The forbidden energy gap in semiconductors
is always zero
lies just below the valence band
lies between the valence band and the conduction band
lies just above the conduction band
⇒ Compact discs use
magnetic recording and retrieval
optical recording and retrieval
optical recording but magnetic retrieval
magnetic recording but optical retrieval
⇒ For a circular wave guide
cutoff frequency for TE_{10} and TE_{01} modes are same
cutoff frequency for TE_{10} and TE_{01} modes are different
cutoff frequency for TE_{10} mode = twice the cutoff frequency for TE_{20} mode
cutoff frequency for TE_{10} mode = haf the cutoff frequency for TE_{20} mode
⇒ Thyristors are suitable for dc circuit breakers but not for ac circuit breakers.
TRUE
FALSE
⇒ An image uses 512 x 512 picture elements. Each of the picture elements can take any of the 8 distinguishable intensity levels. The maximum entropy in the above image will be
2097152 bits
648 bits
786432 bits
144 bits
⇒ In the CE equivalent circuit of figure, the voltage gai
200
40
5
1000
⇒ Which of the following is not a proper FORTRAN expression?
B + A / C - D
(A + C) / (B + D)
B + * A / C
A ** (B + 2)
⇒ The hexadecimal number 64 AC is equivalent to decimal number
25727
25722
25772
25777
⇒ If sound wave has an intensity of 10 Pa. The dB level is about
1.139 dB
11.39 dB
113.9 dB
1139 dB
⇒ Degaussing in a picture tube means
Adding magnetism in mask and mounting frame
Removing residual magnetism in mask, shield etc...
Increasing resistance of coils to decrease time constant
Decreasing resistance of coils to increase time constant.
⇒ A resistance is measured by voltmeter-ammeter method. The voltmeter is 0-250V, ± 1% accuracy and ammeter is 0-5 A, ± 1 % accuracy. The readings of voltmeter and ammeter are 100 V and 2 A respectively. The error in the measured resistance can be
± 1%
± 2%
± 5%
± 10%