A. datum
B. point of reference
C. corner
D. edge
A. Left to right and bottom to top
B. Left to right and top to bottom
C. Right to left and top to bottom
D. Right to left and bottom to top
A. Profiles
B. Elevations
C. Hatchures
D. Contours
A. Hatchures
B. Monuments
C. Topographic marks
D. Pillars
A. Amplifier tubes
B. Switches
C. Signal relays
D. Electron tubes
A. Extension line
B. Centerline
C. Arrowhead line
D. Dimension line
A. Specification
B. Leader
C. Dimension line
D. Extension line
A. Station point
B. Horizon
C. Ground line
D. Vanishing point
A. City map
B. Plat
C. Traverse
D. Contour
A. Horizon
B. Station point
C. Ground line
D. Vanishing point
A. emitter
B. absorber
C. neither ( nor (
D. both ( & (
A. heat exchanger
B. boiler
C. regenerator
D. recuperator
A. for fluids in tubulent flow.
B. for fluids in laminar flow.
C. for liquid metals.
D. when Grashhoff number is very important.
A. rate of heat transfer
B. heat balance consideration
C. neither ( nor (
D. both ( and (
A. use metal fins of low thermal conductivity
B. give larger area per tube.
C. are used for smaller heat load
D. facilitate very large temperature drop through tube wall.
A. decreased
B. increased
C. none of these
D. no effect on
A. is more economical.
B. occupies smaller space.
C. all (, ( and (.
D. is easy to operate and maintain.
A. decreases the outlet temperature of cooling medium.
B. decreases the pressure drop.
C. none of these.
D. increases the overall heat transfer coefficient.
A. 1
B. 1.5
C. < 1
D. > 1
A. conduction becomes important
B. convection becomes important
C. sub-cooled boiling occurs
D. radiation becomes important