1
GATE CE 2023 Set 1
MCQ (Single Correct Answer)
+2
-0.66
A jet of water having a velocity of 20 m/s strikes a series of plates fixed radially on a wheel revolving in the same direction as the jet at 15 m/s. What is the percentage efficiency of the plates? (round off to one decimal place)
A
37.5
B
66.7
C
50.0
D
88.9
2
GATE CE 2023 Set 1
Numerical
+2
-0
A hydraulic jump occurs in a 1.0 m wide horizontal, frictionless, rectangular channel, with a pre-jump depth of 0.2 m and a post-jump depth of 1.0 m. The value of g may be taken as 10 m/s2. The values of the specific force at the pre-jump and post-jump sections are same and are equal to (in m3, rounded off to two decimal places) _____________ .
Your input ____
3
GATE CE 2023 Set 1
MCQ (Single Correct Answer)
+1
-0.33
The direct and reversed zenith angles observed by a theodolite are 56° 00' 00" and 303° 00' 00", respectively. What is the vertical collimation correction?
A
+1° 00' 00" 
B
−1° 00' 00"
C
−0° 30' 00"
D
+0° 30' 00"
4
GATE CE 2023 Set 1
MCQ (Single Correct Answer)
+1
-0.33
A student is scanning his 10 inch × 10 inch certificate at 600 dots per inch (dpi) to convert it to raster. What is the percentage reduction in number of pixels if the same certificate is scanned at 300 dpi?
A
62
B
88
C
75
D
50
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