Users Also Read

MCQ's Search Engine

Electrical Engineering

Mechanical Engineering

Civil Engineering

Automobile Engineering

Chemical Engineering

Computer Engineering

Electronics Engineering

Medical Science Engg

Q1. | With a variable reluctance tachometer having 60 rotor teeth the count reads 3600 counts per minute. The speed in RPM is |

A. | 36 [Wrong Answer] |

B. | 60 [Correct Answer] |

C. | 360 [Wrong Answer] |

D. | 3600 [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ Program counter in a digital computer

counts the number of programs run in the machine

counts the number of times a subroutine

counts the number of time the loops are executed

points the memory address of the current or the next instruction

⇒ Consider the following statement in B

200, 250, 150 respectively

150, 200, 250 respectively

250, 200, 150 respectively

200, 150, 250 respectively

⇒ The intrinsic carrier concentration of silicon sample at 300 K is 1.5 x 10

^{16}/m

^{3}. If after doping, the number of majority carriers is 5 x 10

^{20}/m

^{3}. The minority carrier density is

4.5 x 10

^{11}/m

^{3}

3.33 x 10

^{4}/m

^{3}

5 x 10

^{20}/m

^{3}

3 x 10

^{-5}/m

^{3}

⇒ In the FM wave described by equation

*v*= 15 sin (4 x 10

^{8}

*t*+ 3 sin 1100

*t*), the maximum frequency deviation is

175 Hz

525 Hz

3 Hz

58.33 Hz

⇒ In the following non-planar graph no.of independent loop equations

8

12

7

5

⇒ Which of the following waves do not exist in waveguides?

TE waves

TM waves

TE and TM waves

TEM waves

⇒ In the circuit shown in the figure, the approximate voltage at the transist

base and emitter respectively are -8 V and -7.3 V

base and collector respectively are -8 V and -5 V

Collector and emitter respectively are -5 V and -7.3

base, emitter and collector respectively are -8 V, 7.3 V and -5 V

⇒ If luminance signal Y = 0.3 R + 0.59 G + 0.11 B, the hue of R - Y colour is

0.7 R - 0.59 G - 0.11 B

- 0.7 R + 0.59 G + 0.11 B

1.3 R - 0.59 G - 0.11 B

none of the above

⇒ A network N is dual of network N if

both of them have same mesh equation

both of them have same node equation

mesh equation of one are the node equations of the other

KCL and KVL equations are the same

⇒ Which of the following is used to provide tracking between RF amplifier and local oscillator stages of receiver?

Variable tuning inductor

Ganged tuning inductor

Variable capacitor

Variable preset

⇒ A stationary process has

all statistical properties independent of time

all statistical properties dependent of time

zero variance

ensemble average equal to time average

⇒ For a series R-L-C circuit tuned at resonant frequency which of the following statements is correct?

The voltage across inductance is greater than applied voltage

The voltage across capacitance is greater than applied voltage

The voltage across both inductance and capacitance is greater than applied voltage

The voltage across both inductance and capacitance is less than applied voltage

⇒

**Assertion (A):** If difference between static and optical dielectric constant is high, the mechanical compressiblity of that material is also high.

**Reason (R):** For soft ions, ionic polarization per unit field is higher than that of hard ions.

Both A and R are true and R is correct explanation of A

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

A is true but R is false

A is false but R is true

⇒ A feedback network to be used with an amplifier to provide oscillation is tested and found to give an output of 0.124 V with a 0.5 V input. What must be the minimum gain of the oscillator to provide oscillations?

40

60

100

130

⇒ The voltage transfer functions of two port circuits connected in cascade can be easily found from

product of individual ABCD matrices

product of voltage transfer functions of two networks

sum of

*z*matrices

sum of

*h*matrices

⇒ The slope of log magnitude curve near the cut off frequency is called cut off rate.

TRUE

FALSE

⇒

**Assertion (A):** Interfacing means synchronisation of digital information transmission between input output devices and computer.

**Reason (R):** A computer with higher bit word size executes programs at a faster rate.

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

⇒ The number of accumulators in 6800 are

2

3

1

4

⇒ Which one of the following is a D to A conversion technique?

Successive approximation

Weighted resistor

Dual slope

Single slope

⇒ The circuit in figur

positive clamper

negative clamper

positive peak clipper

negative peak clipper

⇒ Which one is not a valid subscripted variable?

KET(2

^{*}J, 3

^{*}1 - 4)

MET(J + 2, K - 4)

A (2 I)

VEL(I)

⇒ Antenna used for T.V. broadcasting is

long dipole

metal horn

crossed dipole

log periodic

⇒ The output V

_{R}of the ratio detector is related with the output V

_{F}of similar Foster-Seeley discriminator as follows.

V

_{R}= V

_{F}

V

_{R}< V

_{F}

V

_{R}= 2V

_{F}

V

_{F}= 2V

_{R}

⇒ The current through the coil of an electromagnet is doubled. The magnetic field around the coil

is halved

is doubled

becomes four times

remains the same

⇒ Transfer functions of even complicated components can be found by frequency response tests.

TRUE

FALSE

⇒ The Fourier series representation of a periodic current (2 + 62 cos ω

*t*+48 sin 2ω

*t*) A. The effective value is

(2 + 6 + 24) A

0.333333333333333

0.25

0.0833333333333333

⇒ The unit of magnetic flux density is

farad/metre

ohm/metre

tesla

ampere/metre

⇒ The rated current of a thyristor is 40 A. The holding current will be about :

20 A

0.0416666666666667

100 mA

10 mA

⇒ For the circuit shown in the figure, the time constant RC = 1 ms. The input voltage is V

_{1}(

*t*) = 2 sin 10

^{3}

*t*. The output voltage V

_{0}(

*t*) is equa

sin (10

^{3}

*t*- 45°)

sin (10

^{3}

*t*+ 45°)

sin (10

^{3}

*t*- 53°)

sin (10

^{3}

*t*+ 53°)

⇒ ∈

_{r}is determined by the atomic structure of the dielectric.

TRUE

FALSE