C:-15¢cm
D:-1.5 mm
Correct Answer:- Option-A
Question37:-The cross talk due to the electromagnetic interferance can be eliminated by
A:-Placing a high value inductor in series with the transmission line
B:-Using capacitance network in parallel with the transmission line
C:-Twisting the copper wires
D:-A stub of appropriate length is placed at some distance from the load
Correct Answer:- Option-C
Question38:-The insulation thickness in conductor of a cable depend on
A:-power handling ability of cable
B:-Applied voltage
C:-Current camrying capability of cable
D:-The length of the cable
Correct Answer:- Option-B
Question39:-In multi digit seven segment displays, the Ripple Blank Input and Ripple Blank Outputs are used for
A:-Dynamic display in order to save power and to increase the life of the display
B:-Blank out the all the zeros and make it look more intelligent
C:-Cascading the display otherwise displays not works synchronously
D:-Blank out the leading zeros and make it look more intelligent
Correct Answer:- Option-D
Question40:-A 1KVA, 12V online ups connected to a load of 500 Watts, the battery used is 100Ah, then what will be the back
up time if the losses are negligible
A:-120 minutes
B:-2 hour and 40 minutes
C:-144 minutes
D:-2.6 hours
Correct Answer:- Option-C
Question41:-Candela is the unit for
A:-Light flux
B:-Luminous intensity
C:-Wavelength
D:-Luminous efficiency
Correct Answer:- Option-B
Question42:-Which of the following is not true in case of a DSO.
A:-The waveforms are stored in memory to enable them to be processed as needed.
B:-The accuracy of DSO is higher than that of analogue scopes
C:-It is possible to programme the DSO to high level of functionality
D:-It has low input impedance which enables the conversion of ADC faster
Correct Answer:- Option-D
Question43:-Manganin is the alloy of
A:-Copper, Manganese and Nickel
B:-Copper, Magnesium and Nickel
C:-Manganese, Gallium, Nickel and Iron
D:-Manganese, Copper,Gallium, Nickel
Correct Answer:- Option-A
Question44:-Which type of transducer is generally used in electronic weighing machines
A:-Inductive
B:-Capacitive
C:-Resistive
D:-All of the above
Correct Answer:- Option-C
Question45:-What will be the output when one of the Zener diode short in the zener diode peak clipper
A:-Only one half cycle in the output which resembles halfwave rectifier output
B:-No output due to the short circuited zener diode
C:-The output is only the peak portion of one half cycle
D:-The output is the peak clipped halfwave output
Correct Answer:- Option-D
Question46:-At room temperature, a silicon crystal act like