With reference to a safety valve the blow down pressure is the pressure at which
A.Valve opens
B.Valve closes after opening
C.Valve opens initially
D.Valve spring pressure is adjusted
E.None of the above
Author: BILAL KHATTAK
Cetane number of Diesel oil normally available in market is in the range.
A.45 — 50
B.60 — 65
C.75 — 80
D.90 — 100
E.90 — 105
A simple pitot tube is used to measure
A.The pressure in a static fluid
B.The velocity in a flowing stream
C.The total pressure
D.The dynamic pressure
E.The undistributed fluid pressure
Capital increases if __________ increases ?
A. Expenses
B. Drawings
C. Interest on capital
D. Revenue
Continue reading “Capital increases if __________ increases ?”
Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere?
A.Carbon dioxide
B.Chlorofluorocarbons
C.Nitrogen oxide
D.Methane
For an ideal gas x in the equation PV = xT is a constant which depands upon
A.the number of molecules present only
B.the type of gas only
C.both (a) and (b)
D.neighter (a) nor (b)
Azospirillum fixes nitrogen mainly in:
A.Sorghum
B.Cereals
C.Sugarcane
D.Legumes
Content analysis is
A.arrangement of data
B.analysis of themes in written or spoken communications.
C.both of these
The Carnot heat engine
A.receives energy at a high level of temperature
B.converts a portion of the energy received into work
C.discharges portion of the energy received to a heat sink at a low level of temperature
D.all of the above
_________ is a form of discussion that starts with individual response if the students then formulate student’s pairs then the pairs are used to form groups of four.?
A. Discussion Web
B. Concept Web
C. Creativity Web
D. None of these
