- (A) Enhancement or attenuation of radiation occurs in the sighting path
- (B) Object and surrounding are at almost the same temperature
- (C) Object has varying emissivity
- (D) Object is transparent
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- (A) -1, -4
- (B) 1, 4
- (C) -2, -3
- (D) 2, 3
- (A) Guard against corrosive and oxidising action on thermocouple materials
- (B) Reduce measuring lag
- (C) Increase the fidelity
- (D) Increase the sensitivity
- (A) Weir
- (B) Pitot tube
- (C) Vane meter
- (D) Venturimeter
- (A) 45°
- (B) -90°
- (C) -180°
- (D) -45°
- (A) Teflon
- (B) Synthetic rubber
- (C) Bakelite
- (D) Thick paper
- (A) Decay ratio = overshoot
- (B) Decay ratio = (overshoot)2
- (C) Overshoot increases for increasing damping co-efficient
- (D) Large damping co-efficient means smaller damping
- (A) Bimetallic thermometers
- (B) Thermocouples
- (C) Thermostats
- (D) Relays for opening & closing of electrical circuits
- (A) Atmospheric
- (B) Absolute
- (C) Gauge
- (D) None of these
- (A) Orsat apparatus
- (B) Thermal conductivity cell
- (C) Zirconia probe
- (D) Chromatograph
