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No contact is made between armature and core in
A) Capacitive armature LVDT B) Spring extended armature LVDT
C) Inductive armature LVDT D) Unguided armature LVDT

As per Stefan’s law of radiation heat reduced by a body surfaces is
A) Directly proportional to square of absolute temperature

B) Directly proportional to the 4" power of its absolute temperature
C) Inversely proportional to the 41 power of its absolute temperature
D) Inversely proportional to the square of the absolute temperature

With Wheatstone bridge we can measure the resistance of range.
A) 100 Q to a few teraohms B) 1 Q to a few megaohms
C) 10 Q to 1000 Q D) 1 Q to a few teraohms

The types of faults in a telephone line are
A) symmetrical and unsymmetrical B) triple line to line or line to ground
C) line to line or line to ground D) open circuit and closed circuit

Which of the following statement are incorrect ?

1. The main part of CRO is CRT

2. ACRO can be used for direct measurement of power

3. Time base generator is a part of CRT

4. ACRO is used to measure phase displacement

A) 1, 2 and 4 only B) 2 and 3 only

C) 3 and4 only D) All of the above

A circle is seen on the screen of a CRO when two time varying signals of same
frequency and same magnitude are applied to X and Y plates of CRO. The relative
phase difference is :

A) 360° B) 90°

C) 180° D) 45°

Which of the following modes of operation allows you to change the processor
mode from a program/operator device and perform online program editing using
programmable logic control ?

A) REM mode B) PROG mode

C) Test mode D) Run mode