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Q1. | Which is a valid Java variable? |

A. | 1 a b [Wrong Answer] |

B. | 56 a [Wrong Answer] |

C. | a 56 [Correct Answer] |

D. | 5 a 6 [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss 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 a metal the probability of a state 0.1 eV below Fermi level being occupied

is more than the probability of state 0.1 eV above Fermi level being occupied

is the same as the probability of state 0.1 eV above Fermi level being occupied

is less than the probability of state 0.1 eV above Fermi level being occupied

may be equal to or more or less than the probability of state 0.1 eV above Fermi level being occupied

⇒ A single phase half wave rectifier is feeding a resistive load. As firing angle is increased

dc output voltage and rms output voltage decrease in the same proportion

dc output voltage and rms output voltage decrease

dc output voltage and rms output voltage increase

dc output voltage and rms output voltage increase in the same proportion

⇒ (62)

_{10}in binary system is

110000

111100

111110

111111

⇒ RAMs can be built with bipolar or CMOS transistor RAMs that are not possible with bipolar transistors are

SRAM

SRAM, DRAM

DRAM

PROM

⇒ As compared to AM, FM requires

narrow channel

same channel

2 to 3 times as large channel

7 to 15 times as large channel

⇒

**Assertion (A):** A graph is planar if it has a dual.

**Reason (R):** The dual of a graph can be found by window dot method.

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

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

A is true but R is false

A is false but R is true

⇒ Parallel wire transmission line is an example of

lumped network

distributed

depend upon I/P signal strength

power I/P

⇒ Consider the following library functions

- EXP (
*i.e., e*^{x}) - ARCTAN (
*i.e.* tan^{-1} *x*) - SQRT (
*i.e., x*) - AES (
*i.e. *|*x*|) <

All

1 and 3 only

1, 3, 4 only

1, 2 and 3 only

⇒ In FORTRAN 77 the total number of characters in a variable can be a maximum of

6

1

8

9

⇒ In the circuit of figure the current through L at *t* = &infin

0

0.416666666666667

6.67 A

5.1 A

⇒ 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 JFET the width of channel is controlled by

gate voltage

drain current

source current

all of the above

⇒ A + (B . C) =

A . B + C

A . B + A . C

A

(A + B) . (A + C)

⇒ If *f*_{1} (*t*) and *f*_{2} (*f*) are two functions of time and *a* and* b* are constants, then

L [*af*_{1}(*t*) + *bf*_{2}(t)] = *a*F_{1}(*s*) + *b*F_{2}(*s*)

L [*af*_{1}(*t*) + *bf*_{2}(t)] = *a*F_{1}(*s*) - *b*F_{2}(*s*)

L [*af*_{1}(*t*) + *bf*_{2}(t)] =[*a*F_{1}(*s*)]/[*b*F_{2}(*s*]

None of the above

⇒ Thevenin's theorem is used to find current in a branch of a network. It is now desired to find current in another branch of the network

the same Thevenin's circuit can be used

the same Thevenin's circuit with some modification can be used

it is necessary to find new Thevenin's circuit

either (b) or (c)

⇒ The function Z(*s*) has a pole at infinity if

the degree of numerator and denominator of Z(*s*) are equal

the numerator of Z(*s*) is one degree higher than denominator

the denominator of Z(*s*) is one degree higher than numerator

the degree of numerator and denominator are either equal or differ by one

⇒ An SCR is triggered at 80° in the positive half cycle, only. The rms anode current is 25 A. If the firing angle is changed to 160°, the rms current is likely to be

25 A

12.5 A

less than 25 A

less than 12.5 A

⇒ The main advantage of a crystal oscillator

can oscillate any frequency

gives a high output voltage

frequency of oscillation is almost constant

can operates at a low dc voltage

⇒ A push pull amplifier is a

power amplifier

voltage amplifier

current amplifier

both power and current amplifier

⇒ TTL logic is preferred to DRL logic because

greater fan-out is possible

greater logic levels are possible

greater fan-in is possible

less power consumption is achieve

⇒ In an ideal junction transistor the impurity concentration in emitter (E ), base (B) and collector (C) is such that

E > B > C

B > C > E

C > E > B

C = E = B

⇒ The load end of a quarter wave transformer gets disconnected thereby causing an open-circuited load. What will be the input impedance of the transformer?

Zero

Infinite

Finite and Positive

Finite and Negative

⇒ Which of the following is used in automatic control of street lights?

Thermistor

Photoconductor

Transistor

Varistor

⇒ The filter circuit for feeding tweeter has

an inductance in series and a capacitance in parallel

a capacitance in series and an inductance in parallel

a resistance in series and a capacitance in parallel

a capacitance in series and a resistance in parallel

⇒ The dual of the function A(BC + BC + BC) is

A + (B + C) (B + C) (B + C)

A (BC + BC + BC)

C(BA + CA + CA)

ABC + ABC + ABC

⇒ In figure, D_{1} turns on

*v*_{i} is more than V_{1}

*v*_{i} is less than V_{1}

*v*_{i} is between V_{1} and V_{2}

none of the above

⇒ Fundamental mode is another name for

level operation

pulse operation

clock operation

none of these

⇒ If the inputs to a 2 input XOR gate are high then, the output is high.

TRUE

FALSE

⇒ As the reverse voltage is increased, the depletion layer

becomes narrow

widens

remains the same

reduce to zero

⇒ Two CE stages are coupled through a capacitor. To calculate the quiescent base current of the two transistors, the capacitor is treated as

open circuit

short circuit

neither (a) nor (b)

either (a) or (b)

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