Related Questions

Which of the following devices should be used for accurate measurement of low D.C. voltage?
A Small range moving coil voltmeter
B D.C. potentiometer
C Small range thermocouple voltmeter
D None of the above
The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)
A 0.423 D
B 0.577 D
C 0.223 D
D 0.707 D
With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop
A Decreases
B Remains unchanged
C Increases
D Decreases exponentially
The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a
A Weir
B Pitot tube
C Kennison nozzle
D V-notch
Accurate measurement of productivity in the service sector is really a complex task, For example, postal workers/often said to be more productive if more letters are delivered per postal worker, But is this really true? What if more letters are lost or delayed per worker at the same time that more are delivered? The doubt raised about in relation to measuring productivity in service sector is based on which of the following propositions?
A The quality of service is often ignored in measuring productivity
B Postal sector is perfect example of the service sector.
C An effort to measure productivity of the service workers is nothing but wastage of time.
D The delivery of letters is the primary activity of postal service
Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.
A Copper
B Steel
C Aluminium
D Brass
Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the
A Enhancement or attentuation of redia-tion occurs in the sighting path
B Object and surrounding are at almost the same temperature
C Object has varying emissivity
D Object is transparent
The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl.
A Reduced
B Increased
C Zero
D None of these
What is the ratio of the velocity at the axis of the pipe to the mean velocity of flow in case of pipe flow under viscous condition?
A 0.5
B 0.67
C 1
D 2
A company produces five types of shirts -- A,B,C,D and E-using cloth of three qualities -- high, medium and low , using dyes of three qualities-- high, medium and low. One shirt requires 1.5 m of cloth .The following table gives respectively : The number of shirts (of each category) produced, in thousands. The percentage distribution of cloth quality in each type of shirt, and The percentage distribution of dye quality in each type of shirt. What is the ratio of low quality dye used for C-type shirts to that used for D-type shirts ?
A 2:3
B 1:2
C 2:1
D 3:2

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