Related Questions

Admittance relay is _______ relay.
A impedance
B directional
C non-directional
D none of the above
A relay is ___________ switch.
A A mechanical
B An electronic
C An electromechanical
D None of the above
The switch that has the fastest speed of operation is ___________ switch.
A Electronic
B Mechanical
C Electromechanical
D None of the above
The most inexpensive switch is ___________ switch.
A Electronic
B Mechanical
C Electromechanical
D None of the above
_______ is extensively used for those portions of magnetic circuit which carry steady flux and need superior mechanical properties ?
A Grey cast-iron
B Cast steel
C High carbon steel
D Stainless steel
The reason clean energy is hard to come by is that we've spent the past 150 years depending on oil, and it's quite difficult to make the switch. Here "difficult to make the switch" is related to
A Replacing analogue oil with digital fluid
B manufacturing
C inventing
D controlling
You connect a host to a switch port, but the new host cannot log into the server that is plugged into the same switch. What could the problem be?
A The router is not configured for the new host
B The VTP configuration on the switch is not updated for the new host
C The host has an invalid MAC address
D The switch port the host is connected to is not configured with the correct VLAN membership
If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?
A Discard it and send an error message back to the originating host
B Flood the network with the frame
C Add the source address and port to the MAC address table and forward the frame out the destination port
D Add the destination to the MAC address table and then forward the frame
Relay ladder logic is used in a PC because:
A it is impossible to write a control program for a machine in any other logic
B it is the best industrial control language ever developed.
C most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use
D All of the above
E None of the above
The main disadvantage of a mechanical switch is that it___________.
A Is operated mechanically
B Is costly
C Has high inertia
D None of the above

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