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.Management Sciences
Category: Chemical Engineering Basics
The refrigerant freon-12 is chemically_______________________?
0
A. CCl2F2
B. CCl3F
C. CClF3
D. CCl4F
‘Cryogenics’ is concerned with the generation & use of low temperature in the range of____________________?
A. 0°K to 123°K
B. 0°C to – 123°C
C. 0°C to – 273°C
D. 0°K to 273°K
Particle nature of cathode rays is proved due to the fact that they ________________?
A. Travel in a straight line
B. Get deflected by magnetic electric field
C. Produce fluorescence
D. Heat the exposed material
The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the___________________?
A. Final control element
B. On-off control
C. Floating control action
D. None of these
The type of pump used for lifting large quantity of sewage is a _________________ pump ?
A. Gear
B. Centrifugal
C. Reciprocating
D. Plunger
Load cells used for the measurement of weight has______________?
A. Compact & rugged construction with an accuracy of 0.1 to 1%
B. No moving parts and incurs negligible deflection under load
C. Provision of thermal compensation and is hermetically sealed
D. All A, B & C
The condition of diffraction from a crystal is given by______________?
A. nλ = 2d Sin θ
B. λ = d Sin 2θ
C. λ = 2d Sin 2θ
D. nλ = d Sin θ
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