Dew point temperature always gives an indication of the __________________ of the moist air ?
A. Dryness
B. Moisture content
C. Coolness
D. Latent heat
Chemical Engineering Basics
Addition of ____________________ to steel does not help in improving its machinability?
Addition of ____________________ to steel does not help in improving its machinability?
A. Sulphur
B. Silicon
C. Lead
D. Phosphorous
In electrical resistance welding, distortion results from the use of improper________________?
In electrical resistance welding, distortion results from the use of improper________________?
A. Clamg methods
B. Electrodes
C. Current
D. Filler material
_________________ can replace tungsten in high speed steel ?
_________________ can replace tungsten in high speed steel ?
A. Chromium
B. Vanadium
C. Cobalt
D. Molybdenum
Multistage compression of air as compared to single stage compression offers the advantage of______________?
Multistage compression of air as compared to single stage compression offers the advantage of______________?
A. Power saving per unit weight of air delivered
B. Moisture elimination in the inter-stage cooler
C. Increased volumetric efficiency
D. All A , B. & C.
The cathode in an electrochemical cell always carries____________________?
The cathode in an electrochemical cell always carries____________________?
A. Negative charge
B. Positive charge
C. Zero charge
D. Positive or negative charge depending upon the nature of the cell
Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?
Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio) ?
A. E = 2G (1 + v)
B. E = G (1 + v)
C. E = G (1 + v)/2
D. E = 2G (1 + 2v)
Cold chisel & hammers are made of_________________?
Cold chisel & hammers are made of_________________?
A. High speed steel
B. High carbon steel
C. Forged steel
D. Mild steel
Dislocation cross-slip is difficult in those materials, which have___________________?
Dislocation cross-slip is difficult in those materials, which have___________________?
A. Large number of slip systems
B. High work hardening rate
C. Coarse grain size
D. Low stacking fault energy
In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is ______________ °C?
In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is ______________ °C?
A. 20
B. 60
C. 120
D. ∞