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Q1. | On which of the following effect do thermocouples work? |

A. | Thomson effect [Wrong Answer] |

B. | Seeback effect [Correct Answer] |

C. | Peltier effect [Wrong Answer] |

D. | Joule effect [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 a cable with ∈

*= 4, the wave velocity is*

_{r}3 x 10

^{8}m/s

0.75 x 10

^{8}m/s

1.5 x 10

^{8}m/s

10

^{8}m/s

⇒ X COPY is an internal DOS command.

TRUE

FALSE

⇒ A control system is as shown in given figure The maximum value of gain K for which the system is stable

more than 5

equal to 5

less than 1

less than 5

⇒ In a certain network not containing any dependent sources, number of nodes = 4 and number of branches is equal to 6.

4

2

3

5

⇒ Zener breakdown occurs

due to rapture of covalent band

mostly in germanium junctions

in lightly doped junctions

due to thermally generated minority carriers

⇒ At T = 0, the resistivity of a perfect single crystal of a metal is

0

low

high

finite

⇒ The time base generator in a CRO gives an output which is

low frequency sinusoidal

high frequency sinusoidal

low frequency rectangular

high frequency sawtooth

⇒ If a piece of wood is placed in a magnetic field

the magnetic field will not be affected

the magnetic lines of force will bend towards the piece

the magnetic lines of force will bend away from the piece

the flux may increase or decrease

⇒ The first geostationary satellite launched in 1965 was called

ANIK

EARLY BIRD (Intelsat-I)

WESTAR

MOLNIYA

⇒ In TV scanning sequence of lines is

left to right

right to left

left to right for odd fields and right to left for even field

left to right for even fields and right to left for odd field

⇒ The units of resistivity are ohm-metre.

TRUE

FALSE

⇒ The boundary conditions at the interface between two dielectrics in an electric field are given by

D

_{normal}= 0, E

_{tangential}= 0

D

_{normal}= 0, E

_{normal}= 0

D

_{tangential}= 0, E

_{tangential}= 0

D

_{tangential}= 0, E

_{normal}= 0

⇒ A meter having 0-1000 μA range and 1000 Ω resistance is required to be changed to 0-100 mA meter. The value of shunt resistance is about

1 Ω

10 Ω

99 Ω

100 Ω

⇒

Match the following:

List I (Octal) | List II (Decimal number) | ||
---|---|---|---|

A. | 35 | 1. | 53 |

B. | 65 | 2. | 62 |

C. | 54 | 3. | 29 |

D. | 76 | 4. | 44 |

A-4, B-3, C-2, D-1

A-1, B-2, C-3, D-4

A-2, B-3, C-1, D-4

A-3, B-1, C-4, D-2

⇒ The value of VSWR is taken as ∞ when the line is

short-circuited

open-circuited

terminated with full load

terminated with load equal to the characteristic impedance of the load

⇒ As wavelength decrease the size of high directivity antenna

decreases

increases

is not affected

either (

*b*) or (

*c*)

⇒ The accumulator drives the ALU.

TRUE

FALSE

⇒ A parallel in-parallel out shift register can be used to introduce delay in digital circuits.

TRUE

FALSE

⇒ A constant

*k*low pass filter has

*f*

_{c}= 1000 Hz. At

*f*= 500 Hz, the phase shift is

p

zero

more than p

less than p

⇒ The first critical frequency nearest the origin of the complex frequency plane for an RL driving point impedance will be

a zero in left half plane

a zero in right half plane

a pole in left half plane

a pole or zero in left half plane

⇒ A digital watch contains

quartz crystal oscillator

RC oscillator

LC oscillator

either quartz or RC oscillator

⇒ A network is causal if impulse response is zero for

*t*< 0.

TRUE

FALSE

⇒ A computer program is used to read M and print the sum 2 + 4 + 6 + 8 +.........+ 2M. If M = 9 , the print out will show the number

9

18

90

100

⇒ The '

*h*' parameters of the circuit shown in the figure are

*h*

_{ib}= 25 Ω,

*h*

_{fb}= 0.999 and

*h*

_{ob}= 10

^{-6}Ω The Voltage gai

0.99

1.98

2

4

⇒ 5 skilled workers can build a wall in 20 days; 8 semi-skilled worker can build a wall in 25days; 10 unskilled workers can build a wall in 30 days, If a team has 2 killed, 6 semi-skilled and 5 unskilled workers, how long will it take to build the wall?

20 days

18 days

16 days

15 days

⇒ Instruction cycle is the time required to complete the execution of an instruction.

TRUE

FALSE

⇒ In a backward wave oscillator the wave travelling along the line winds itself back and forth

TRUE

FALSE

⇒ In a fully controlled bridge converter feeding a resistive load the waveshapes of output voltage and output current

are always similar

can never be similar

may be similar or dissimilar

are similar only if a = 0

⇒ For real values of

*x*, the minimum value of the function

*f*(

*x*) exp (

*x*) + exp (-

*x*) is

2

1

0.5

0

⇒ The function

*f*= A ⊕ B ⊕ A ⊕ D ⊕ E ⊕ C ⊕ D ⊕ E ⊕ F ⊕ G ⊕ F ⊕ G ⊕ C ⊕ E ⊕ A ⊕ D ⊕ B ⊕ E ⊕ E ⊕ B ⊕ B ⊕ B ⊕ B ⊕ D can be written as

A ⊕ B ⊕ D

A ⊕ B ⊕ E

A ⊕ E

A ⊕ E