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Q1. | The data about p the pull required to lift a weight wby a pulley bloc |

A. | 3.2 + 0.171 w [Wrong Answer] |

B. | 2.28 + 0.1879 w [Correct Answer] |

C. | 1.2 + 0.25 w [Wrong Answer] |

D. | 0.6 + 0.3 w [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 :**

⇒ In figure, the current through 10 V batter

0

0.5 A charging

0.5 A discharging

none of the above

⇒ Which one of the following theorem can be conveniently used to calculate the power consumed by the 10 Ω resistor in the network shown in the above fig

Thevenin's theorem

Maximum power transfer theorem

Millman's theorem

Superposition theorem

⇒ An e-mail message can be sent to many recipients.

TRUE

FALSE

⇒ The smallest change in sound intensity that can be detected by human ear is __________ dB.

1

3

10

20

⇒ In figure, capacitor is used to develop pulses of short duration and large duty cycle across R

_{2}when switch is closed. Which of the following combinations is best sui

R

_{1}and R

_{2}large but C small

R

_{1}and R

_{2}small but C large

R

_{1}and C large and R

_{2}small

R

_{2}and C large but R

_{1}small

⇒ In a gate output is Low if and only if all inputs are High. The gate is

OR

AND

NOR

NAND

⇒ If

*e*= 10 sin(10

^{8}

*t*+ 3 sin 10

^{4}

*t*) then modulating frequency is

159 Hz

1590 Hz

1.59 MHz

15.9 MHz

⇒ Low frequency boost can be easily compensated by

attenuating the frequencies from 0 to 1.25 MHz

using an appropriate de-emphasis circuit in the receiver

using an appropriate pre-emphasis circuit in the transmitter

none

⇒ Which of the following measurements using a dc potentiometer do not require standardisation of potentiometer?

Measurement of unknown voltage

Measurement of resistance

Measurement of unknown current

Calibration of voltmeter

⇒ For the circuit, let us assume that R = 1 Ω, L = 10

^{-3}H, and V(t) = 10 cos (1000

*t*+ 30°)V and the differential equation for I(

*t*) is give

7.07 cos (1000

*t*+ 15°) A

70.7 cos (1000

*t*- 30°) A

7.07 cos (1000

*t*- 15°) A

7.07 cos (1000

*t*+ 15°) A

⇒ The number of variables in a function is odd and the number of minterms with even number of 0's are same as the number of minterms with odd number at 1's, the expression formed can be represented in __________ as well as __________ form.

Ex - OR, NOR

Equivalence, Ex - OR

AND, Coincidence

OR, Ex - OR

⇒ Assuming accumulator contain A 64 and the carry is set (1). What will register A and (CY) contain after ADI A4H?

4 AH, 0

4 AH, 1

4 BH, 0

4 BH, 1

⇒ A linear time-invariant, causal continuous time system has a rational transfer function with simple poles at

*s*= - 2 and

*s*= - 4, and one simple zero at

*s*= - 1. A unit step

*u*(

*t*) is applied at the input of the system. At steady state, the output has constant value of 1. The impulse response of this system is

[exp (- 2

*t*) + exp (-4

*t*)]

*u*(

*t*)

[-4 exp (- 2

*t*) + 12 exp (-4

*t*) - exp (-

*t*)]

*u*(

*t*)

[-4 exp (- 2

*t*) + 12 exp (-4

*t*)]

*u*(

*t*)

[-0.5 exp (- 2

*t*) + 1.5 exp (-4

*t*)]

*u*(

*t*)

⇒ The number of product terms in the minimized sum of product expression obtained through the following

*k*map is (where "

*d*" denotes don't care states)

2

3

4

5

⇒

**Assertion (A):** In a magnitude comparator IC the cascading inputs provide a means to cascade the 4 bit comparators

**Reason (R):** A magnitude comparator has three outputs, A = B, A > B and A < B

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 true, R is false

A is false, R is true

⇒ Narrow band FM signal can be represented as

A cos (2p

*f*) - β

_{c}t*A*sin (2p

*f*) sin (2p

_{c}t*f*)

_{m}tA cos (2p

*f*) - β

_{m}t*A*sin (2p

*f*) sin (2p

_{c}t*f*)

_{m}tA cos (2p

*f*) + β

_{c}t*A*sin (2p

*f*) sin (2p

_{c}t*f*)

_{m}tA cos (2p

*f*) + β

_{m}t*A*sin (2p

*f*) sin (2p

_{m}t*f*)

_{c}t⇒ For 0 < M < 1, the centres of M circle lie to the right of origin.

TRUE

FALSE

⇒ In 2's complement form, - 2 is

1011

1110

1100

1010

⇒ For an ideal 3000 Hz channel, Nyquist rate is

3000 bps

6000 bps

9000 bps

12000 bps

⇒ A Si sample is doped with a fixed number of group N impurities. The electron density

*n*is measured from 4 K to 1200

*k*for the sample. Which one of the following is correct?

n remains constant over the temperature range

n increases monotonicaliy with increasing temp

n increases first remains constant over a range and again increases with increasing temperature

n increases show a peak and then decrease with temperature

⇒ In an FM system, when the AF is 500 Hz and the AF voltage is 2.4 V, the deviation is 4.8 kHz. If the AF voltage is now increased to 7.2 V, the new deviation will be

4.8 kHz

9.6 kHz

14.4 kHz

28.8 kHz

⇒ Two capacitors of 2 μF and 4 μF capacitance are connected in series across a 30 V dc battery. After the capacitors have been charged, the voltage across them will be

15 V each

10 V and 20 V

20 V and 10 V

30 V each

⇒ One input terminal of high gain comparator circuit is connected to ground and a sinusoidal voltage is applied to the other input. The output of comparator will be

sinusoidal

full rectified sinusoidal

half rectified sinusoidal

square wave

⇒ S is closed for a long time and steady state is reached. S is opened at

*t*(0

^{-}). The voltage marked V is V

_{0}at

*t*= 0

^{+}and V

_{f}at

*t*= ∞. Then value of V

_{0}and V

_{f}are respecti

8, 8

0, 1

4, 0

4, 8

⇒ If the op-amp in figure has a unity gain frequency of 1 MHz, the cut off frequenc

100 kHz

1 MHz

10 MHz

90 MHz

⇒ In dielectric heating, the thyristor circuits consist of

rectifier-chopper combination

controlled rectifier

ac regulator

rectifier-inverter combination

⇒ The function of shunt in an ammeter is to

by pass the current

increase sensitivity of meter

increase resistance of meter

all of the above

⇒ As compared to 17.34° antenna, the total increase in the signal relayed by 4.5° antenna of INTELSAT-IV is

14.85

220

78

3.85

⇒ Probability of error in DPSK is less than PSK

TRUE

FALSE

equal

depend upon noise

⇒ The relative stability of a system is given by

gain margin alone

phase margin alone

both phase and gain margins

either (a) or (b)