Related Questions

The elevator in an eleven-storied office building travels at the rate of one floor per 1/4 minute, which allows time for picking up and letting down passengers. At the main floor and at the top floor the operator stops for 1 minute. How many complete (with return) trips will the operator makes during a 7-hour period?
A 50
B 60
C 80
D 90
The elevator in an eleven-storied office building travels at the rate of one floor per 1/4 minute, which allows time for picking up and letting down passengers. At the main floor and at the top floor the operator stops for 1 minute. How many complete (return) trips will the operator make during a 7 hours period?
A 50
B 60
C 80
D 90
The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. Which of the following, if given to the mixing vat operator as an instruction, would not determine the setting of any other valve ?
A S must be open
B T must be open
C U must be open
When mapping a ternary relationship with an associative entity into a relation which of the following is true?
A One relation is created.
B Two relations are created.
C Three relations are created.
D Four relations are created.
Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship?
A MUST COVER
B MUST NOT
C Both of the above
D None of the above is correct
Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent
A A pure component
B A binary mixture
C A ternary mixture
D Partially miscible ternary system
A ternary relationship involves how many entities?
A 3 or less
B 3
C More than 3
D 3 or more
The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an
A Pure component
B Binary mixture
C Ternary mixture
D Insoluble binary system
The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. If Z is open, which of the following must be true?
A S is open
B T is open
C U is open
D y is open
The mixing vat in a factory receives liquid ingredients through six separate value--- labeled R.S.T.U,Y and Z -- each of which has exactly two settings: open and closed.The mixing vat operator must ensure that each valve is set open or closed according to the following conditions: If T is open, both S and Z must be closed, R and Z cannot both be closed at the same time; If Y is closed, Z must also be closed;S and U cannot both be open at the same time. If R is closed and U is open, which of the following must be true?
A S is open
B T is open
C T is closed
D Y is closed

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