1 >>Galvanic corrosion can not be prevented by ?2 >>Fire in fuel gas pipelines is extinguished most effectively by ?3 >>Which of the following is the most suitable abrasive for grinding high tensile strength materials ? ?
4 >>Case hardening is not done by ?5 >>Satellites burn off during re-entry to earth's atmosphere, because of the ?
7 >>Neutrons are present in all atoms except that of ?
8 >>__________ circuit is most commonly used to measure strain with the help of a strain gauge. ?9 >>Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines ? ?10 >>__________ is a special constituent of chlorophyll without which photosynthesis is not possible. ?11 >>__________ is used as a material of construction for the blade of power saw. ?
13 >>Laser welding is widely employed in the __________ industries. ?14 >>Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a __________ calorimeter. ?15 >>Which of the following is used to produce draught in the locomotive boilers ? ?16 >>Temper brittleness of a material can be fairly detected by the __________ test. ?17 >>When the wavelength of incident X-rays increases, the angle of diffraction ?18 >>The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation is ?19 >>The specific gravity of coal depends mainly on its __________ content. ?
- (A) cathodic protection.
- (B) anodic protection.
- (C) usage of largest possible anodic area.
- (D) any one of these.
- (A) spraying water.
- (B) blanketting
the area with nitrogen atmosphere. - (C) fire fighting foam.
- (D) none of these.
- (A) Silicon carbide
- (B) Corundum
- (C) Aluminium oxide
- (D) Boron carbide
- (A) nitriding
- (B) hot dipping
- (C) electroplating
- (D) both b & c
- (A) combustion with air.
- (B) gravitational pull by earth.
- (C) friction with earth's atmosphere.
- (D) loss in weight of the satellite.
Download
6 >>With increase in compression ratio, the volumetric efficiency of air compressor ?- (A) increases.
- (B) decreases.
- (C) remains same.
- (D) may increase or decrease (depends on the suction pressure).
- (A) He
- (B) C
- (C) H
- (D) Ar
Chemical Engineering Quiz
- (A) Ballast
- (B) Voltage balancing potentiometric
- (C) Simple current sensitive
- (D) none of these
- (A) Air filter
- (B) Fuel injector
- (C) Exhaust silencer
- (D) Battery
- (A) Calcium
- (B) Nitrogen
- (C) Phosphorous
- (D) Hydrogen
- (A) Wrought iron
- (B) Stainless steel
- (C) Mild steel
- (D) High speed steel
Download
12 >>During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to ?- (A) time
- (B) square root of time
- (C) square of time
- (D) cube of time
- (A) electronic
- (B) structural
- (C) process
- (D) heavy
- (A) bomb
- (B) throttling
- (C) Junker's
- (D) Boy's
- (A) Chimney.
- (B) Induced draught fan.
- (C) Forced draught fan.
- (D) Steam jet arrangement.
- (A) fatigue
- (B) notched bar impact
- (C) tensile
- (D) hardness
- (A) decreases.
- (B) increases.
- (C) remains constant.
- (D) shows no systematic variation.
- (A) more
- (B) equal
- (C) less
- (D) double
- (A) carbon
- (B) volatile matter
- (C) ash
- (D) moisture