VSSC Instrument Mechanic Paper 2019

Vikram Sarabhai Space Center Instrument Mechanic Paper 2019

Commonly used materials for wire strain gauge are
(a) Nickel and Copper
(b) Nickel and Gold
(c) Gold and Brass
(d) Silver and Aluminium

An energy meter involves circuits for measuring
(a) Voltage and current
(b) Power and time
(c) Voltage and resistance
(d) Current and resistance

Hydrometers are used for
(a) Specific gravity
(b) Humidity
(c) Temperature
(d) pH

Where is Ladder logic diagram used?
(a) AISC Programming
(b) PGA Programming
(c) PROM Programming
(d) PLC Programming

Which of the following codes will change by only one bit while incrementing or decrementing?
(a) Binary
(b) BCD
(c) Gray
(d) One hot

Which of the following is a parallel interface standard?
(a) Ethernet
(b) RS232
(c) IEEE-488
(d) RS485

What is the maximum number of digital inputs that a logic gate output can feed?
(a) fan-in
(b) noise margin
(c) fan-out
(d) noise figure

Which of the following is not a transducer?
(a) RTD
(b) Thermocouple
(c) LVDT
(d) Thyristor

Peltier effect is used for
(a) Temperature sensing
(b) Pressure sensing
(c) Energy measurement
(d) Heating and cooling

How many JK flip flops (with J=K=1) should be cascaded with Q output of one flipflop connected to clock input of the next flipflop, to derive 2 kHz from 32 kHz?
(a) 4
(b) 8
(c) 16
(d) 32